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E N V I R O N M E N T A L S E R V I C E S
Town of MarbleheadFormer Railroad Right-of-Way Marblehead Massachusetts
November 161995
Prepared for The Town of Marblehead Water and Sewer Commission and Electric Light Department PO Boi 1108 Marblehead Massachusetts 01945
Prepared by MyKroWaters Inc PO Box 1088 Concord MA 01742
PO Box 1088 bull Concord Massachusetts 01742 Telephone 1-800-588-8680
TABLE OF CONTENTS
Appendix A
Appendix B
L Introduction
n Background
in History and Surrounding Area
IV Future Site Uses
V Site Description
VL Subsurface Investigation
L Introduction
IL Exposure Assessment
ID Selection of Risk Characterization Method
IV Potentially Applicable or Suitably Analogous Public Health Standards Guidelines and Criteria
V Estimation of Average Daily Dose
VI Risk Characterization
VTI Safety Public Welfare and Environmental Risk Characterization
VTII Uncertainty Analysis
IX Conclusions amp Recommendations
I Limitations amp Conditions
Town of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 2
I INTRODUCTION
The following investigation was conducted to assess environmental conditions at a former railroad right-of-way located on Lafayette Street in Marblehead
The following work has been completed for the Town of Marblehead by MyKroWaters Inc as outlined in the IRA Plan dated October 20 1995 prepared by MyKro Waters
1 Site visit on September 25 1995 to conduct a subsurface investigation which included installation of small diameter monitoring wells mykrowells for ground water sampling and collection of surficial and sediment soil samples in order to evaluate site conditions
2 Submittal of soil and ground water samples to a Massachusetts certified laboratory for analysis Ground water samples were analyzed for volatile organic compounds (VOCs by EPA Method 601602) petroleum hydrocarbons (PHC) by GCFID Total Lead and for RCRA 8 Metals Soil samples were analyzed for VOCs by EPA Method 8010 A8020 A PHC by GCFID Total Lead RCRA 8 Metals and TCLP Lead Only
3 Conduct an Imminent Hazard evaluation at the request of the DEP based on analytical results from laboratory data of surrounding property
II BACKGROUND
A limited site investigation was conducted in December 1994 on surrounding properties by Geological Field Services Inc Elevated levels of lead were found in the soils Concentrations ranged from 13800 mgkg to 23 8 mgkg of lead A verbal notification to the Massachusetts Department of Environmental Protection (DEP) was filed on July 19 1995 A Response Notification Form was completed and filed with DEP on September 29 1995 and verbal notification for an Immediate Response Action Assessment (IRA) was given by DEP on or about August 21 1995
HI HISTORY AND SURROUNDING AREA
The property under assessment was formerly owned by the Boston and Maine Railroad which used the site as active rail transport The train tracks have been removed but the two rail bridges remain The site housed a small building owned by the Boston amp Maine Railroad that for a time was rented to Robertsons Marine Service This building was destroyed by fire in 1968 and the lot is now vacant It is used by the public for recreational purposes such as biking walking swimming etc The property which abuts the site to the east and west is privately owned
The Eastern Railroad Co was deeded the right of way in 1887 from the Chadwick Lead Works Corp The Boston amp Maine Railroad was the successor to the deed The surrounding property was historically used as a lead manufacturing plant which specialized
MyKro Waters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
r
Figure 1
Site Under Assessment
LAFAYETTE
N
100
j i
Site under assessment is located on
Cadastral Retracement Survey of Former BampM RR Right of Ways
Sheet 2
Site Plan prepared by Raymond C Pressey Inc June 221993
Marblehead Lead Mills Lafayette Street
Marblehead Massachusetts 01945 Project 950813 MyKroWtten Inc
Date October 301995
3 Town of MarbleheadFormer Railroad Right-of-Wagt 111695 MKW Project 950813
in high quality white lead The remaining building was destroyed by fire in 1968 and the property has not been redeveloped
IV FUTURE SITE USES
As of October 27 1995 the site has been posted with a warning concerning its use as a foot and bike path The proposed future use of this property is a footbike path and a utility corridor
V SITE DESCRIPTION
The property under investigation is a former railroad right-of-way accessible via Lafayette Street It is bound to the northwest by Salem Harbor with a portion of the property consisting of shoreline Figure 1 indicates the site as illustrated on the Plan of Land Owned by the Town of Marblehead in Marblehead MA dated June 22 1993 The property is bisected at the southwestern portion by the Forest River inlet Along the length of the parcel running approximately southwest to northeast is the former railroad bed The railroad bed is raised approximately 20 feet above the shore line on what appears to be a steep naturally eroding embankment Two bridges were erected allowing the tracks to span both the Forest River and a washout in the steep embankment
The shore is composed of coarse grained sand with abundant pebbles cobbles and boulders There are pottery fragments strewn along the entire length of the shoreline with the highest concentration located near the seaward side of the northernmost bridge The rest of the property is perched on an embankment approximately twenty feet above mean sea level The property gently slopes to a lower elevation as it progresses landward The portion of the property on which the railroad tracks were positioned is composed of a very compact medium to coarse grained sand black surficial staining was observed on portions of the path in Sections A B C and D (See Figure 2) There were several footbike paths on the property The paths consisted of medium to coarse yellowish sand matrix with some pebbles and cobbles The remainder of the site was moderately to heavily covered with apparently healthy vegetation
VI SUBSURFACE INVESTIGATION
On September 25 1995 MyKroWaters personnel visited the former railroad right-of-way to conduct subsurface investigations which consisted of the installation of wells for ground water sampling and the collection of soil samples A total of three wells MK-1 MK-2 and MK-3 were installed and 25 soil samples collected Selected ground water and soil samples were sent to IEA Laboratories of Billerica MA
Well Installation amp Ground Water Sampling amp Analysis
To install wells MyKroWaters drilling methods utilize a mobile vibratory hammer The leading well section is a slotted screen equipped with paired openings 0015 in width
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
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TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
TABLE OF CONTENTS
Appendix A
Appendix B
L Introduction
n Background
in History and Surrounding Area
IV Future Site Uses
V Site Description
VL Subsurface Investigation
L Introduction
IL Exposure Assessment
ID Selection of Risk Characterization Method
IV Potentially Applicable or Suitably Analogous Public Health Standards Guidelines and Criteria
V Estimation of Average Daily Dose
VI Risk Characterization
VTI Safety Public Welfare and Environmental Risk Characterization
VTII Uncertainty Analysis
IX Conclusions amp Recommendations
I Limitations amp Conditions
Town of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 2
I INTRODUCTION
The following investigation was conducted to assess environmental conditions at a former railroad right-of-way located on Lafayette Street in Marblehead
The following work has been completed for the Town of Marblehead by MyKroWaters Inc as outlined in the IRA Plan dated October 20 1995 prepared by MyKro Waters
1 Site visit on September 25 1995 to conduct a subsurface investigation which included installation of small diameter monitoring wells mykrowells for ground water sampling and collection of surficial and sediment soil samples in order to evaluate site conditions
2 Submittal of soil and ground water samples to a Massachusetts certified laboratory for analysis Ground water samples were analyzed for volatile organic compounds (VOCs by EPA Method 601602) petroleum hydrocarbons (PHC) by GCFID Total Lead and for RCRA 8 Metals Soil samples were analyzed for VOCs by EPA Method 8010 A8020 A PHC by GCFID Total Lead RCRA 8 Metals and TCLP Lead Only
3 Conduct an Imminent Hazard evaluation at the request of the DEP based on analytical results from laboratory data of surrounding property
II BACKGROUND
A limited site investigation was conducted in December 1994 on surrounding properties by Geological Field Services Inc Elevated levels of lead were found in the soils Concentrations ranged from 13800 mgkg to 23 8 mgkg of lead A verbal notification to the Massachusetts Department of Environmental Protection (DEP) was filed on July 19 1995 A Response Notification Form was completed and filed with DEP on September 29 1995 and verbal notification for an Immediate Response Action Assessment (IRA) was given by DEP on or about August 21 1995
HI HISTORY AND SURROUNDING AREA
The property under assessment was formerly owned by the Boston and Maine Railroad which used the site as active rail transport The train tracks have been removed but the two rail bridges remain The site housed a small building owned by the Boston amp Maine Railroad that for a time was rented to Robertsons Marine Service This building was destroyed by fire in 1968 and the lot is now vacant It is used by the public for recreational purposes such as biking walking swimming etc The property which abuts the site to the east and west is privately owned
The Eastern Railroad Co was deeded the right of way in 1887 from the Chadwick Lead Works Corp The Boston amp Maine Railroad was the successor to the deed The surrounding property was historically used as a lead manufacturing plant which specialized
MyKro Waters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
r
Figure 1
Site Under Assessment
LAFAYETTE
N
100
j i
Site under assessment is located on
Cadastral Retracement Survey of Former BampM RR Right of Ways
Sheet 2
Site Plan prepared by Raymond C Pressey Inc June 221993
Marblehead Lead Mills Lafayette Street
Marblehead Massachusetts 01945 Project 950813 MyKroWtten Inc
Date October 301995
3 Town of MarbleheadFormer Railroad Right-of-Wagt 111695 MKW Project 950813
in high quality white lead The remaining building was destroyed by fire in 1968 and the property has not been redeveloped
IV FUTURE SITE USES
As of October 27 1995 the site has been posted with a warning concerning its use as a foot and bike path The proposed future use of this property is a footbike path and a utility corridor
V SITE DESCRIPTION
The property under investigation is a former railroad right-of-way accessible via Lafayette Street It is bound to the northwest by Salem Harbor with a portion of the property consisting of shoreline Figure 1 indicates the site as illustrated on the Plan of Land Owned by the Town of Marblehead in Marblehead MA dated June 22 1993 The property is bisected at the southwestern portion by the Forest River inlet Along the length of the parcel running approximately southwest to northeast is the former railroad bed The railroad bed is raised approximately 20 feet above the shore line on what appears to be a steep naturally eroding embankment Two bridges were erected allowing the tracks to span both the Forest River and a washout in the steep embankment
The shore is composed of coarse grained sand with abundant pebbles cobbles and boulders There are pottery fragments strewn along the entire length of the shoreline with the highest concentration located near the seaward side of the northernmost bridge The rest of the property is perched on an embankment approximately twenty feet above mean sea level The property gently slopes to a lower elevation as it progresses landward The portion of the property on which the railroad tracks were positioned is composed of a very compact medium to coarse grained sand black surficial staining was observed on portions of the path in Sections A B C and D (See Figure 2) There were several footbike paths on the property The paths consisted of medium to coarse yellowish sand matrix with some pebbles and cobbles The remainder of the site was moderately to heavily covered with apparently healthy vegetation
VI SUBSURFACE INVESTIGATION
On September 25 1995 MyKroWaters personnel visited the former railroad right-of-way to conduct subsurface investigations which consisted of the installation of wells for ground water sampling and the collection of soil samples A total of three wells MK-1 MK-2 and MK-3 were installed and 25 soil samples collected Selected ground water and soil samples were sent to IEA Laboratories of Billerica MA
Well Installation amp Ground Water Sampling amp Analysis
To install wells MyKroWaters drilling methods utilize a mobile vibratory hammer The leading well section is a slotted screen equipped with paired openings 0015 in width
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
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TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
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9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 2
I INTRODUCTION
The following investigation was conducted to assess environmental conditions at a former railroad right-of-way located on Lafayette Street in Marblehead
The following work has been completed for the Town of Marblehead by MyKroWaters Inc as outlined in the IRA Plan dated October 20 1995 prepared by MyKro Waters
1 Site visit on September 25 1995 to conduct a subsurface investigation which included installation of small diameter monitoring wells mykrowells for ground water sampling and collection of surficial and sediment soil samples in order to evaluate site conditions
2 Submittal of soil and ground water samples to a Massachusetts certified laboratory for analysis Ground water samples were analyzed for volatile organic compounds (VOCs by EPA Method 601602) petroleum hydrocarbons (PHC) by GCFID Total Lead and for RCRA 8 Metals Soil samples were analyzed for VOCs by EPA Method 8010 A8020 A PHC by GCFID Total Lead RCRA 8 Metals and TCLP Lead Only
3 Conduct an Imminent Hazard evaluation at the request of the DEP based on analytical results from laboratory data of surrounding property
II BACKGROUND
A limited site investigation was conducted in December 1994 on surrounding properties by Geological Field Services Inc Elevated levels of lead were found in the soils Concentrations ranged from 13800 mgkg to 23 8 mgkg of lead A verbal notification to the Massachusetts Department of Environmental Protection (DEP) was filed on July 19 1995 A Response Notification Form was completed and filed with DEP on September 29 1995 and verbal notification for an Immediate Response Action Assessment (IRA) was given by DEP on or about August 21 1995
HI HISTORY AND SURROUNDING AREA
The property under assessment was formerly owned by the Boston and Maine Railroad which used the site as active rail transport The train tracks have been removed but the two rail bridges remain The site housed a small building owned by the Boston amp Maine Railroad that for a time was rented to Robertsons Marine Service This building was destroyed by fire in 1968 and the lot is now vacant It is used by the public for recreational purposes such as biking walking swimming etc The property which abuts the site to the east and west is privately owned
The Eastern Railroad Co was deeded the right of way in 1887 from the Chadwick Lead Works Corp The Boston amp Maine Railroad was the successor to the deed The surrounding property was historically used as a lead manufacturing plant which specialized
MyKro Waters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
r
Figure 1
Site Under Assessment
LAFAYETTE
N
100
j i
Site under assessment is located on
Cadastral Retracement Survey of Former BampM RR Right of Ways
Sheet 2
Site Plan prepared by Raymond C Pressey Inc June 221993
Marblehead Lead Mills Lafayette Street
Marblehead Massachusetts 01945 Project 950813 MyKroWtten Inc
Date October 301995
3 Town of MarbleheadFormer Railroad Right-of-Wagt 111695 MKW Project 950813
in high quality white lead The remaining building was destroyed by fire in 1968 and the property has not been redeveloped
IV FUTURE SITE USES
As of October 27 1995 the site has been posted with a warning concerning its use as a foot and bike path The proposed future use of this property is a footbike path and a utility corridor
V SITE DESCRIPTION
The property under investigation is a former railroad right-of-way accessible via Lafayette Street It is bound to the northwest by Salem Harbor with a portion of the property consisting of shoreline Figure 1 indicates the site as illustrated on the Plan of Land Owned by the Town of Marblehead in Marblehead MA dated June 22 1993 The property is bisected at the southwestern portion by the Forest River inlet Along the length of the parcel running approximately southwest to northeast is the former railroad bed The railroad bed is raised approximately 20 feet above the shore line on what appears to be a steep naturally eroding embankment Two bridges were erected allowing the tracks to span both the Forest River and a washout in the steep embankment
The shore is composed of coarse grained sand with abundant pebbles cobbles and boulders There are pottery fragments strewn along the entire length of the shoreline with the highest concentration located near the seaward side of the northernmost bridge The rest of the property is perched on an embankment approximately twenty feet above mean sea level The property gently slopes to a lower elevation as it progresses landward The portion of the property on which the railroad tracks were positioned is composed of a very compact medium to coarse grained sand black surficial staining was observed on portions of the path in Sections A B C and D (See Figure 2) There were several footbike paths on the property The paths consisted of medium to coarse yellowish sand matrix with some pebbles and cobbles The remainder of the site was moderately to heavily covered with apparently healthy vegetation
VI SUBSURFACE INVESTIGATION
On September 25 1995 MyKroWaters personnel visited the former railroad right-of-way to conduct subsurface investigations which consisted of the installation of wells for ground water sampling and the collection of soil samples A total of three wells MK-1 MK-2 and MK-3 were installed and 25 soil samples collected Selected ground water and soil samples were sent to IEA Laboratories of Billerica MA
Well Installation amp Ground Water Sampling amp Analysis
To install wells MyKroWaters drilling methods utilize a mobile vibratory hammer The leading well section is a slotted screen equipped with paired openings 0015 in width
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
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along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
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6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
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7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
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9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
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TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
r
Figure 1
Site Under Assessment
LAFAYETTE
N
100
j i
Site under assessment is located on
Cadastral Retracement Survey of Former BampM RR Right of Ways
Sheet 2
Site Plan prepared by Raymond C Pressey Inc June 221993
Marblehead Lead Mills Lafayette Street
Marblehead Massachusetts 01945 Project 950813 MyKroWtten Inc
Date October 301995
3 Town of MarbleheadFormer Railroad Right-of-Wagt 111695 MKW Project 950813
in high quality white lead The remaining building was destroyed by fire in 1968 and the property has not been redeveloped
IV FUTURE SITE USES
As of October 27 1995 the site has been posted with a warning concerning its use as a foot and bike path The proposed future use of this property is a footbike path and a utility corridor
V SITE DESCRIPTION
The property under investigation is a former railroad right-of-way accessible via Lafayette Street It is bound to the northwest by Salem Harbor with a portion of the property consisting of shoreline Figure 1 indicates the site as illustrated on the Plan of Land Owned by the Town of Marblehead in Marblehead MA dated June 22 1993 The property is bisected at the southwestern portion by the Forest River inlet Along the length of the parcel running approximately southwest to northeast is the former railroad bed The railroad bed is raised approximately 20 feet above the shore line on what appears to be a steep naturally eroding embankment Two bridges were erected allowing the tracks to span both the Forest River and a washout in the steep embankment
The shore is composed of coarse grained sand with abundant pebbles cobbles and boulders There are pottery fragments strewn along the entire length of the shoreline with the highest concentration located near the seaward side of the northernmost bridge The rest of the property is perched on an embankment approximately twenty feet above mean sea level The property gently slopes to a lower elevation as it progresses landward The portion of the property on which the railroad tracks were positioned is composed of a very compact medium to coarse grained sand black surficial staining was observed on portions of the path in Sections A B C and D (See Figure 2) There were several footbike paths on the property The paths consisted of medium to coarse yellowish sand matrix with some pebbles and cobbles The remainder of the site was moderately to heavily covered with apparently healthy vegetation
VI SUBSURFACE INVESTIGATION
On September 25 1995 MyKroWaters personnel visited the former railroad right-of-way to conduct subsurface investigations which consisted of the installation of wells for ground water sampling and the collection of soil samples A total of three wells MK-1 MK-2 and MK-3 were installed and 25 soil samples collected Selected ground water and soil samples were sent to IEA Laboratories of Billerica MA
Well Installation amp Ground Water Sampling amp Analysis
To install wells MyKroWaters drilling methods utilize a mobile vibratory hammer The leading well section is a slotted screen equipped with paired openings 0015 in width
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
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along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
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5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
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6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
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7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
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9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
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TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
3 Town of MarbleheadFormer Railroad Right-of-Wagt 111695 MKW Project 950813
in high quality white lead The remaining building was destroyed by fire in 1968 and the property has not been redeveloped
IV FUTURE SITE USES
As of October 27 1995 the site has been posted with a warning concerning its use as a foot and bike path The proposed future use of this property is a footbike path and a utility corridor
V SITE DESCRIPTION
The property under investigation is a former railroad right-of-way accessible via Lafayette Street It is bound to the northwest by Salem Harbor with a portion of the property consisting of shoreline Figure 1 indicates the site as illustrated on the Plan of Land Owned by the Town of Marblehead in Marblehead MA dated June 22 1993 The property is bisected at the southwestern portion by the Forest River inlet Along the length of the parcel running approximately southwest to northeast is the former railroad bed The railroad bed is raised approximately 20 feet above the shore line on what appears to be a steep naturally eroding embankment Two bridges were erected allowing the tracks to span both the Forest River and a washout in the steep embankment
The shore is composed of coarse grained sand with abundant pebbles cobbles and boulders There are pottery fragments strewn along the entire length of the shoreline with the highest concentration located near the seaward side of the northernmost bridge The rest of the property is perched on an embankment approximately twenty feet above mean sea level The property gently slopes to a lower elevation as it progresses landward The portion of the property on which the railroad tracks were positioned is composed of a very compact medium to coarse grained sand black surficial staining was observed on portions of the path in Sections A B C and D (See Figure 2) There were several footbike paths on the property The paths consisted of medium to coarse yellowish sand matrix with some pebbles and cobbles The remainder of the site was moderately to heavily covered with apparently healthy vegetation
VI SUBSURFACE INVESTIGATION
On September 25 1995 MyKroWaters personnel visited the former railroad right-of-way to conduct subsurface investigations which consisted of the installation of wells for ground water sampling and the collection of soil samples A total of three wells MK-1 MK-2 and MK-3 were installed and 25 soil samples collected Selected ground water and soil samples were sent to IEA Laboratories of Billerica MA
Well Installation amp Ground Water Sampling amp Analysis
To install wells MyKroWaters drilling methods utilize a mobile vibratory hammer The leading well section is a slotted screen equipped with paired openings 0015 in width
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
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TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
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5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
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6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
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7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
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Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
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9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
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1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
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1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
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APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
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Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
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Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
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111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
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TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
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TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
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111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
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TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
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1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
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Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
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TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
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TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
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Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
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Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
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111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
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MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
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MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
TOWTI of MarbleheadFormer Railroad Righl-of-Way 111695 MKW Project 950813 4
along the long axis of the pipe led by a heat treated steel tip point The screen slots are on opposite sides of the well and are off-set for continuous screening The internal diameter of the well is 0 62 while the outside diameter is 0 82 Depths were reached by positioning riser pipe atop the well section and hydraulically crimping the connections Monitoring wells were completed above grade with locking tops Monitoring well finishing details including screen intervals are noted on the attached well logs
Groundwater sampling was conducted using an inertial bailer and dedicated polyethylene tubing at discrete depth intervals for each well location Water samples were collected from each mykrowell and analyzed for VOCs by EPA Method 601602 for PHCs by GCFID Total Lead and for RCRA 8 Metals Wells were developed by removing three times the standing water volume Samples were collected into new 40 mL VOA vials and new 1L bottles with screw-on caps Results from VOC analysis are tabulated in Table 1 for PHC analysis in Tables 2 for Total Lead and RCRA 8 Metals in Table 3
Ground water samples collected in September 1995 indicated the presence of several heavy metals at the following maximum concentrations arsenic 83 ug1 barium 840 ugL chromium 267 ugL lead 3540 ugL and mercury 0 89 ugL No volatile organic compounds or petroleum hydrocarbons were detected in ground water samples
NhKro Waters Inc raquo P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
5 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 1 Laboratory Analysis of Groundwater from MK-1 for VOCs
by EPA Method 601602 Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per billion)
Compound MK-1 MK-2 MK-3 Bromodichloromethane BQL BQL BQL Bromoform BQL BQL BQL Bromocthane BQL BQL BQL Carbon Tetrachlonde BQL BQL BQL Chlorobenzene BQL BQL BQL Chloroethane BQL BQL BQL 2-Chloroethylvmyl ether BQL BQL BQL Chloroform BQL BQL BQL Chloromethane BQL BQL BQL Dibromochloromcthane BQL BQL BQL 1 2-Dichlorobenzene BQL BQL BQL 1 3-Dichlorobenzene BQL BQL BQL 1 4-Dichlorobcnzenc BQL BQL BQL Dichlorodiiluoromethane BQL BQL BQL 11-Dichlorocthane BQL BQL BQL 12-Dichloroethane BQL BQL BQL 11-Dichloroethene BQL BQL BQL trans- 1 2-Dichloroeihene BQL BQL BQL 1 2-Dichloropropane BQL BQL BQL cis-1 3-Dichloropropene BQL BQL BQL trails- 1 3-Dichloropropene BQL BQL BQL Mcthlene Chloride BQL BQL BQL 1 1 22-Tetrachloroethane BQL BQL BQL Tetrachloroethene BQL BQL BQL 111-Tnchloroelhane BQL BQL BQL 1 1 2-Tnchloroethane BQL BQL BQL Tnchloroethene BQL BQL BQL Tnchlorofluoromethane BQL BQL BQL Vmvl Chloride BQL BQL BQL Benzene BQL BQL BQL Ethvlbcivene BQL BQL BQL Toluene BQL BQL BQL Xylenes (Total) BQL BQL BQL Metlnl-l-buhlether BQL BQL BQL cis- 1 2-Dichloroethene BQL BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 No highlighting indicates belou MCP RCS-lGW-3 standards
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
6 Town of MarblehcadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 2 Laboratory Analysis of Groundwater from MK-1 for PHCs
by GCFID EPA Method 8100 and 8015(Modified) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product MK-1 Kerosene (C9-C22) BQL
Fuel Oil 2 (C9-C25) BQL Fuel Oil 6 (C9-C38) BQL Motor Oil (C14-C38) BQL Coal Tar (C9-C36) BQL Gasoline (C5-C 18) BQL
Notes 1 BQL indicates below quantitation limit
Table 3 Laboratory Analysis of Groundwater for Total Lead and RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Metal MK-1 (20-70) MK-2 (155-205) MK-3 (40-90) GW-3 Standard Arsenic 00827 NA 00676 0 4 Barium 049 NA 084 30
Cadmium BQL NA BQL 001 Chromium 0267 NA 0 197 2
Lead 354 0359 0116 003 Mercurv 0 00089 NA BQL 0001 Selenium BQL NA BQL 008
Silver BQL NA BQL 0007
Notes BQL indicates below quantitation limit 2 RC indicates DEP reportable concentration 3 NA indicates sample not analyzed for target parameter 4 Highlighted results are oer the MCP RCS-lGW-3 (results indicate un-filtered samples)
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
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1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
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TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
7 Town of MarbleheadFormer Railroad Rjght-of-Way 111695 MKW Project 950813
Soil Sampling
MyKroWaters personnel mapped and divided the site into 100 foot (length) blocks lettered A through H with a triangular shaped block I located adjacent to Lafayette Street (see Sample Location Map Figure 2) Samples were gathered at discrete depth intervals ranging from 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 24 soil samples were collected
Soil samples were collected by driving augers to the desired depth capturing the sample within an open-faced cylinder Between sampling locations the auger was decontaminated with AJconoxtrade methanol and distilled water Samples were collected into new 8 ounce soil jars with screw-on caps A brief sample description follows
Sample Depth Sample Description ID (Inches)
A1S 0-6 Yellowish sand beneath shallow soil laver A2S 0-6 Grass covered sandv soil BIS 0-6 Dark brown sandv soil B2S 0-6 Black compact medium to coarse grained sand CIS 0-6 Dark brown sandv soil C2S 0-6 Coarse sand with abundant pebbles and cobbles some black sand C21 6-12 Coarse sand with abundant pebbles and cobbles C2D 12-18 Coarse sand with abundant pebbles and cobbles D1S 0-6 Med-Ven Coarse ellow sand with abundant granules pebbles and pollen fragments D1I 6-12 Med-Vergt Coarse gtcllow sand with abundant granules pebbles and pollen- fragments DID 12-18 Med-Ven Coarse ellow sand with abundant granules pebbles D2S 0-6 Light brow n sand E1S 0-6 Brown compact sand and grael E2S 0-6 Brown sandv soil with roots F1S 0-6 Brown sandv soil with leaf litter F2S 0-6 Brown sand with granules and pebbles CIS 0-6 Brown fine-coarse sand G2S 0-6 Med-Ven Coarse sand HIS 0-6 Dk brown humic soil with some cobbles and roollets H1I 6-12 Dk brown humic soil wiih some cobbles and roots H I D 12-18 Dk brown humic soil with some cobbles and roots H2S 0-6 Brown fine-coarse sand us 0-6 Dk Brown humic soil with abundant detntal material 12S 0-6 Dk Brown humic soil wilh abundanl delnlal malenal
Two soil samples (B2S and C2S) were analyzed for VOCs with results tabulated in Table 4 Three soil samples (B2S C2D and IIS) were analyzed for PHCs with results tabulated in Table 5 A total of 21 soil samples were analyzed for total lead with results tabulated in Table 6 A composite soil sample was analyzed for RCRA 8 Metals with results tabulated in Table 7 and soil sample E2S was analyzed for TCLP Lead Only with results tabulated in Table 8
MKroWalers Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MarbleheadFormer Railroad Right-of-Way 1116 MKW Project 950813
Table 4 Laboratory Analysis of Soil for VOCs by EPA Method 8010A8020A
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per billion) Compound B2S C2S
Bromodichloromethane BQL BQL Bromoform BQL BQL Bromoethane BQL BQL Carbon Tctrachlonde BQL BQL Chlorobenzene BQL BQL Chloroethane BQL BQL 2-Chloroethvlvmvl ether BQL BQL Chloroform BQL BQL Chloromethane BQL BQL Dibromochloromethane BQL BQL 1 2-Dichlorobenzene BQL BQL 13-Dichlorobenzcnc BQL BQL 14-DichIorobenzene BQL BQL Dichlorodifluoromcthane BQL BQL 1 1 -Dichloroethane BQL BQL 12-Dichloroethane BQL BQL 1 1 -Dichloroethene BQL BQL cis-1 2-DichJoroethene BQL BQL trans-1 2-Dichloroethenc 2 BQL 1 2-DichIoropropane BQL BQL cis- 1 3-DtchIoropropene BQL BQL trans- 1 3-DichIoropropene BQL BQL 1 1 22-Tetrachloroethane BQL BQL Tctrachlorocthcne 6 BQL Ill-Trichloroethanc 2 BQL 1 1 2-Tnchloroethane BQL BQL TnchJoroethene BQL BQL Tnchlorofluoromcthane BQL BQL Vmvl Chloride BQL BQL Benzene 6 BQL Ethvlbenzene BQL BQL Toluene 7 BQL Xylenes (Total) BQL BQL Methvl-t-butvlcther BQL BQL
Notes 1 BQL indicates belou quantitation limit 2 Detected levels are bclou the MCP S-lGW-3 standards
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
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1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
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Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
9 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 5 Laboratory Analysis of Soil Samples for Extractable PHCs by GCFID
EPA Method 8100 and 8015(Modifled) Former Railroad Right-of-Way Marblehead Massachusetts
September 251995 (concentrations in parts per million)
Petroleum Product B2S C2D Us Kerosene (C9-C22) BQL BQL BQL Fuel Oil 2 (C9-C25) BQL BQL BQL Fuel Oil 6 (C9-C38) 1100 BQL BQL Motor Oil (C14-C38) BQL BQL BQL Coal Tar (C9-C36) BQL BQL BQL Gasoline (C5-C 18) BQL BQL BQL Unknown (8-36 Cn Range) 1200
Notes BQL indicates below quantitation limit Highlighted results are over the MCP S-lGW-3 Standard (500 ppm) 8-36 Cn Range refers to approximate chromotographic region covered b specific petroleum products in straight-chain carbon units
Table 6 Laboratory Analysis of Soil for Total Lead
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million)
Sample ID Total Lead A1S 273 A2S 1090 BIS 178 CIS 457 C2I 96 C2D 348 D1S 400 D1I 1210 DID 440 D2S 175 E1S 175 E2S 3570 F1S 1230 F2S 470 CIS 540 G2S 337 H I S 1830 Hll 1500 HID 1710 H2S 189 12S 249
Notes Highlighted results arc ocr the MCP S-lGW-3 Standard for lead (300 ppm)
MKroVaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
1
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
10 Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813
Table 7 Laboratory Analysis of Soil Composite for RCRA 8 Metals
Former Railroad Right-of-Way Marblehead Massachusetts September 251995
(concentrations in parts per million) Metal Grid BCDE-1S S-l Soil amp
Composite GW-3 Arsenic 163 30 Barium 293 1000
Cadmium BQL 30 Chromium 201 1000
Lead 1530 300 Mercurv 0 11 10 Selenium BQL 300
Silver BQL 100
Notes 1 BQL indicates bclou quantitation limit 2 Highlighted results arc cncr the MCP S-lGW-3 Standard for lead (300 ppm)
Table 8 Laboratory Analysis of E2S for TCLP Lead Only
Former Railroad Right-of-Way Marblehead Massachusetts September 25 1995
(concentrations in parts per million)
Metal Lead 823
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
1
Town of MarbleheadFormer Railroad Right-of-Way 111695 MKW Project 950813 11
Soil Analytical Results
As described previously soil samples were collected at three depths 0 to 6 inches 6 to 12 inches and 12 to 18 inches A total of 21 samples were collected and analyzed for total lead The arithmetic mean soil lead concentration was calculated for this site in two ways
By including soil data points for depths up to 18 inches an average concentration of 769 mgkg was calculated 2 The average calculated for soil only from 0 to 6 inches is 921 mgkg The soil concentrations which will be used within this imminent hazard risk characterization will be the 0 to 6 inch total site average of 921 mgkg Appendix 1
One composite sample was collected for the site and analyzed for RCRA 8 metals The results of the analysis showed the following metals concentrations in mgkg arsenic 163 barium 293 chromium 20 1 lead 1530 and mercury 0 11 With the exception of barium and lead all of the metals concentrations are below the levels documented by the DEP as typical rural and suburban background concentrations However the detected levels of barium are below MCP RC SI standards
In addition to total lead analyses one surface soil and on 12 to 18 inch sample were analyzed for the TPH parameter by EPA Method 8100 (modified) The surface soil sample (B2S) showed a TPH concentration of 1100 mgkg which was reported in the carbon range of C9-C38
The following risk assessment section will discuss in detail the significance of the soil sampling findings At DEP request this analysis takes the form of an Imminent Hazard evaluation
IvhKroWaiers Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
APPENDIX A
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 1
40 0950 IMMINENT HAZARD EVALUATION
I INTRODUCTION
The following sections describe the Imminent Hazard Evaluation prepared for the Town of Marblehead
railroad right of way portion of the property under assessment located off Lafayette Street Marblehead
Massachusetts The format and methods used are those presented in the Massachusetts Contingency
Plan developed by the Massachusetts Department of Environmental Protection as updated in
November 1993
To the greatest extent possible and within the constraints of the available site-specific data the
objectives of this evaluation are to identify and complete the folloving tasks
- Identify current site activities and uses - Select the appropriate Risk Characterization Method based on site uses and potential complete
exposure pathways - Identify potential exposure point concentrations - Identify the applicable environmental standards and - Compare the potential exposure point concentrations to the applicable standards to determine
whether a significant nsk of imminent harm is associated with site conditions
In order to complete these tasks data collected during the most current subsurface investigation and
groundwater monitoring will be incorporated into the nsk characterization In addition the following
general assumptions will be made
The nsk characterization will consider levels of oil and hazardous matenals (OHM) currently on-srte and predicted values for potential off-site receptors The assessment will consider only the current scenarios Over the time penod considered in the nsk characterization the targeted future land use is as public access property Based on site characterization activities undertaken to date the principal OHM present is the compound lead
MKroWaters Inc bull P O Bo 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MarbleheadForrner Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2
Environmental Fate and Transport
The fete and transport properties in various environmental media may be evaluated from documented
physical constants for the contaminants of concern These constants include the octanol-water partition
coefficient Km the organic carbon partition coefficient KOC the vapor pressure for a compound the
Henrys Law constant and the half-life for the compound in surface water or other media In general the
higher the octanol-water partition coefficient the lower the water solubility for that chemical which
limits the groundwater transport of that chemical The K^ value indicates the relative adsorption of a
compound in a soil matrix Higher K^ values indicate moderate to high adsorption to sod while lower
KK values indicate greater mobility from the soil matrix The Henrys Law constant and the vapor
pressure are indicative of a chemicals potential for vaporization from another environmental medium A
high vapor pressure indicates that a chemical volatilizes readily
Of the contaminants of potential concern for this site none is considered to be volatile Therefore any
air releases from the site will be considered to be related to particulate emissions Heavy metals and
petroleum oils typically have low water solubility low volatility and high affinities for soil making these
classes of compounds relatively immobile in the soil matrix
Chemical Specific Toxicity - Heavy Metals
The USEPAs Integrated Risk Information System (1RJS) is the source for most of the information
presented in this section
Lead is a naturally occurring element that has been used almost since the beginning of civilization
Because of its many industrial applications lead is ubiquitous in the environment All humans have a
lead bodv burden primarily as a result of exposure to manmade sources The major environmental
MKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 3
sources of inorganic lead are paint auto exhaust food and water For children the most important
sources of lead exposure are mgestion of lead paint chips eating food from lead-soldered cans drinking
water from lead-soldered pipes medications (folk remedies) and exposure to lead from auto emissions
which has been deposited in soils Lead affects the peripheral and central nervous systems the blood
cells and the metabolism of vitamin D and calcium Lead also causes reproductive toxicity and has been
implicated as a potential renal carcinogen in humans The neurological deficits as well as other effect
caused by lead poisoning may be irreversible
Total Petroleum Hydrocarbons (TPH)
No specific human toxicity data is available for the analytical parameter identified as Total Petroleum
Hydrocarbons or TPH This analytical parameter is an evaluation of a large group of organic
compounds which are typically associated with petroleum products Compounds in this category include
saturated and unsaturated aliphatic hydrocarbons (straight-chain or branched alkanes alkenes and
cycloalkanes) and aromatic hydrocarbons Gas chromatographic fingerprint analysis of the oil found at
the property under assessment indicates that the hydrocarbon components are in the Cg to C36 range
For toxicologic purposes the MADEP divides the petroleum hydrocarbons into two broad classes
alkanes and cycloalkanes and alkenes and aromatics Toxicologic studies conducted on the alkanes
have primarily been short-term studies focused on their ability to cause mucous membrane irritation and
central nervous system effects such as narcosis Central nervous system effects are typically associated
with the lower molecular weight compounds with toxicity decreasing beyond C9 The cycloalkanes are
also dermal irritants and exhibit effects on the central nervous system Studies associated with the
potential health effects of white mineral oil provided sources of toxicity information for the higher
molecular weight alkanes These oils are used as laxatives and in Pharmaceuticals and cosmetics They
are also used commercially in bakery products in foods and candy and on raw vegetables Feeding
studies on rats and dogs failed to establish any chronic adverse health effects or carcinogenic potential
there is no toxicologic evidence which shows that the alkanes are complete carcinogens However the
hydrocarbons Cio and larger may act as co-carcinogens or promoters of carcinogenic effects
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
111695 Town of MarbleheadFormcr Railroad Righl-of Way
MKW Project 950813 Appendix A Page 4
No volatile aromatic hydrocarbons were identified in soil or groundwater samples collected during the
1995 site investigation The Reference Doses (RfD) Reference Concentrations (RfC) and Slope Factors
(CSF) which have been documented for the chemicals of potential concern for this site are included in the
following table
RfD RfDK RfC CSF CHEMICAL (mgkg-day) (ugm3 (1 mgkg-day)
Banum 007 NL NA NA Lead 0 00075 75 NA NA
TPH C8-C36 006 NL NA NA
(NL=not listed NA=not applicable)
MKro Waters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
TOWTI of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 5
II EXPOSURE ASSESSMENT
The exposure assessment is a critical component of the risk characterization process and must answer
the question Based on current and foreseeable future uses will hazardous materials at or from the
disposal site pose significant risks to public health The following subsections address potential release
mechanisms and receiving media which may be effected by an on-srte source Potentially exposed
populations and the routes of exposure are also addressed In the event that a source contaminates a
medium the potential exposure pathways from that medium are evaluated to determine whether a
complete exposure pathway exists An exposure pathway is not considered complete unless a
feasible source of contamination a route of exposure and a receiving population i e population at
nsk can be identified
Identification of Potential Human Receptors
Human population groups must be evaluated for the potential to contact oil and hazardous materials
present at or suspected to be released from the property under assessment On-srte receptors typically
may be classified into three groups site employees employees of other enterprises who may
occasionally conduct work on the property and the general public
No site employees contractors or utility workers currently access the property under assessment on a
regular basis Therefore these groups will not be included in the imminent hazard evaluation
Commercial adult populations will be included in a complete Method 3 Risk Characterization as
applicable
The general public may access the property during various recreational activities such as biking
runningwalking and beach access The duration of time spent on the property is typically be brief
however other than the posted notice no physical restrictions to site use are currently in place
VhKroWaters Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MaitoleheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appends A Page 6
Although the property is not currently nor is it planned in the future to be used as a residential setting the
residential scenario will be evaluated within the Method 3 risk characterization Under this scenario it
will be assumed that both child and adult residents reside within the building for 24 hours per day 365
days per year Childhood exposures will be assumed to have an exposure duration of 6 years Adults
will be estimated to reside on the site for 30 years These Method 3 nsk scenarios as applied to the site
provide a conservative approach
Potential off-site receptors will not be evaluated under this imminent hazard evaluation In the event that
a complete nsk characterization is conducted potential off-site receptors will be considered
Identification of Exposure Points
The exposure points for the imminent hazard evaluation will be limited to the soil contamination found
within the top six inches of soil All exposure points including those via the inhalation pathway will be
assumed to be located on the property
The physical location of the site indicates that the property is not likely to be situated within the area of
contribution to a drinking water supply
Routes of Exposure
The routes of exposure for this imminent hazard evaluation are expected to include incidental ingestion
of surface soils dermal contact with surface soils and the inhalation of airborne particulates released
from surface soils Although lead had been identified in groundwater no immediate source of human
exposure to groundwater has been identified Information from the local water companies has identified
no known productive groundwater wells in the general vicinity of the site
JvhKroWaters Inc raquo P O Bo 1U88 bull Concord MA 01742 bull 800-588-8680
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
TOTI of MaibleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 1
Summary of Complete Exposure Pathways
A potential human health risk can only be present if there exists at least one complete exposure pathway
for which risks can be classified A complete exposure pathway consists of three components a source
of contamination at an exposure point a potential human receptor and a potential biological route of
administration of the dose of contaminant The discussions provided in other sections have presented
these inputs as separate entities However the number of complete exposure pathways obtained from
combinations of these parameters is limited by the physical aspects of the site and the potential for
contact with various environmental media As a result only the following complete exposure pathways
may be identified for the property under assessment
1 General public incidental ingestion of site surface soils (aduhs and children)
2 General public dermal contact with site soils (adults and children) and
3 General public inhalation of airborne paniculate released from site soils (adult and children)
Although the compounds banum and petroleum hydrocarbons have been detected at concentrations
expected to be above background the only contaminant which will be included in this imminent hazard
evaluation is lead due to the concentrations of contaminants present and their respective reference dose
values The lead concentration is comparable to the TPH concentration present but the Reference Dose
cited for lead 0 00075 mgkg-day is approximately 100 times lower than the alternative TPH reference
dose of 0 06 mgkg-day or the banum RfD of 0 07 mgkg-day
Contractors are not included in the list of complete exposure pathways due to the fact that no site work is
being currently conducted The potential health hazards associated with future site work must first be
addressed in a site-specific heahh and safety plan
MgtKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
MARBLEHEAD MUNICIPAL LIGHT COMMISSION MARBLEHEAD WATER AND SEWER COMMISSION
100118
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 8
Estimation of Exposure Point Concentrations
The exposure point concentrations for lead in surface soils will be by usinga total site average of 921
rngkg in the first 6 inches of soil
Potential airborne lead concentrations are calculated assuming a background open field airborne
participate concentration (PM10) of 32 ugcubic meter as documented by the MADEP in the Guidance
for Disposal Site Risk Characterization updated in July 1995 All dust will be assumed to be soilshy
denved The airborne lead concentration is then approximated by assuming that the lead fraction in
airborne dust is equivalent to the fraction in soil
MgtKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormcr Railroad Righl-of Way 111695
MKW Project 950813 Appendix A Page 9
III SELECTION OF RISK CHARACTERIZATION METHOD
The selection of a nsk characterization method under the Massachusetts Contingency Plan can be based
on information collected during Phase I site activities After the presence of OHM potential human
receptors exposure points and routes of exposure have been identified the nsk characterization method
can be selected
Description of MCP Risk Characterization Methods
The Massachusetts Contingency Plan specifies three methods for the completion of the nsk
charactenzation Method 1 may be used to charactenze the nsks at disposal sites where assessments
have determined that the presence of oil and hazardous matenals is limited to soil andor ground water
In Method 1 the conditions at a disposal site are compared to the promulgated MCP Method 1
standards The Massachusetts Department of Environmental Protection (DEP) has developed lists of
standards which correspond to three categories each of ground water and soils The categones are
defined by the anticipated uses of the environmental medium and the potential for contact by a receptor
A Method 2 charactenzation may be used to supplement and modify the MCP Method 1 standards with
site- and chemical-specific information Method 2 standards may be developed for chemicals for which
Method 1 standards have not been promulgated or site-specific information may be used to modify the
Method 1 GW-2 standards GW-3 standards or the leaching component of the soil standards However
neither the GW-1 standards nor the direct contact component of the soil standards may be modified
under Method 2
A Method 3 nsk charactenzation may be conducted for any disposal site Method 3 relies upon detailed
information about the site the OHM known to be present and potential exposures to human and
environmental receptors In the event that a site nsk charactenzation can not be conducted using either
Method 1 Method 2 or a combination of the two then Method 3 must be selected
VhKroWaters Inc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Wa 111695
MKW Project 950813 AppendixA Page 10
Method 1 standards were developed under the Massachusetts Contingency Plan using the assumptions
that children and adults may be continuously exposed to the contaminant of concern Sincethe exposure
scenario applicable to the property under assessment may not fit these assumptions a site-specific
Method 3 risk characterization is likely to be the method chosen for the complete site risk
characterization
Identification of Ground Water and Soil Categories
Under Method 1 ground water and soils are classified based on usage and the potential for contact with
a human or environmental receptor The ground water categories describe the potential for three
different types of exposure Category GW-1 standards apply if the ground water is within a Zone II an
Interim Wellhead Protection Area within a potentially productive aquifer or if it is wrthm the Zone A of
a Class A surface water body GW-1 standards also apply if the ground water is located within 500 feet
of a private well supply or 500 feet or more from a public water distribution system pipeline
Groundwater category GW-2 applies if the ground water is located within 30 feet of an occupied
building or structure and the average depth to ground water in that area is 15 feet or less GW-2
groundwater is considered to be a potential source of vapors of oil andor hazardous materials to indoor
air Groundwater category GW-3 applies if the groundwater may negatively impact receptors in a
surface water body The DEP states that groundwater at all disposal sites must be considered as a
potential source of discharge to surface water and as such shall be classified as a minimum as GW-3
The groundwater category which is expected to apply to the property under assessment is GW-3 based
on the lack of both volatile compounds in the groundwater and indoor air receptors No potable or
irrigation wells have been identified in the vicinity of the site
Soils are classified under the MCP as either category S-l S-2 or S-3 Category S-l soils are associated
with the greatest potential for exposure with category S-3 having the lowest potential Site soils must be
qualitatively evaluated by the assessor based on the frequency of use the intensity of use and the
accessibility of the soils to a receptor
1KroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Righl-of Wa 111695
MKW Project 950811 Appendix A Page 11
For the property under assessment in its current condition the soil category is anticipated to be S-l
based on the unlimited access to the site and the potential for intensive use of the site by both children
and adults Although actual duration of site use may in most cases be brief no restrictions other than the
posted notice on site use such as fences pavement security etc is currently in place
MKroWatcrs Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 12
IV POTENTIALLY APPLICABLE OR SUITABLE ANALOGOUS PUBLIC HEALTH
STANDARD GUIDELINES AND CRITERIA
In order to evaluate whether a contaminant may have the potential to adversely effect human health
exposure point concentrations should first be compared to published health standards or criteria values
Within the context of this report measured exposure point concentrations will be compared to the
following standards guidelines and criteria
- Massachusetts MCLs (310 CMR 22 00) Massachusetts Drinking Water Standards
- Massachusetts Ground Water Standards (314 CMR 6 07)
- OSHA 29 CFR 1910 applicable subparts
- Massachusetts Allowable Ambient Limits annual averages
- Massachusetts AALs 24-hour Threshold Effects Exposure Limits (TELs)
Two of the metals identified in ground water exceed the MCLs for those compounds arsenic and lead
No other measured levels of environmental contaminants exceed any of the standards referenced above
The property however is not being used for public or private water supply or as a potential productive
water supply area No measurement of air emissions from the site have been made
Under the revised Massachusetts Contingency Plan the DEP has promulgated soil and groundwater
standards which may be used in a Method 1 Risk Characterization These standards are not directly
applicable to a Method 3 characterization but may be incorporated for reference
The Method 1 standards promulgated for ground water category GW-3 and soil category S-l may then
be used for comparison to the exposure point concentrations measured or estimated for potential human
and environmental receptors
MvKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Tovn of MaiblchcadFormcr Railroad Right-of Way
MKW Project 950813 Appendix A Page 13
Method 1 Standards
The standards which are incorporated here for comparison purposes for this nsk characterization are
found in Table 1 of 310 CMR 40 0974(2) and Table 2 of 310 CMR 40 0975(6)(a) The standards for
the OHM suspected to be present at the site and the concentrations for comparison are summarized
below
OHM GW-3 (ppb) S-lGW-3 MeanGW (ppb) Cone (ppb)
Arsenic 400 30 75 Barium NL NL 665 Lead 30 300 1338 TPH 50000 500 ND
Reasonable Maximum Concentrations for Site Contaminants
The soil and air concentrations to be used in this imminent hazard evaluation were discussed previously
Hazards associated with lead will be evaluated based upon the srte average concentration Airborne dust
concentrations will be based upon the average lead concentration
MKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 14
V ESTIMATION OF AVERAGE DAILY DOSE
The US EPAs Exposure Assessment Group defines exposure as the amount of material contacted and
available for absorption and the dose is the amount of the material actually absorbed by the body
The dose is typically calculated by multiplying an exposure point concentration by a Bioavailabilrty
Adjustment Factor (BAF) The dose received is typically expressed as milligrams of contaminant
absorbed per kilogram of body weight An average daily dose or ADD can be calculated by dividing
the total amount of contaminant intake per kilogram of body weight over an averaging period Doses of
a particular contaminant received via different routes of exposure are assumed to be additive
Lifetime chronic subchronic and acute ADDs may be calculated the differences between them being
the exposure periods over which they are averaged For the lifetime ADD an exposure penod of 70
years will be used The lifetime ADD is appropriate for estimating risks due to exposures to
carcinogens The averaging penod for the chronic ADD may be several months to several years and is
applicable to the evaluation of chronic non-carcinogenic hearth effects associated with long-term
exposures such as may be found in occupational settings The averaging penod associated with
subchronic daily doses may range from several days to several months and would typically be associated
with short-term or seasonal exposure periods The acute dose is associated with one-time or episodic
exposures The averaging penod is not always equal to the duration of exposure
Lifetime average concentrations (LACs) and average daily concentrations (ADCs) should be calculated
for inhalation exposures These values are presented in units of micrograms contaminant per cubic
meter of air (ugm ) for companson to US EPA and Massachusetts DEP nsk charactenzation values
Lifetime ADDs chronic ADDs subchronic ADDs lifetime average concentration (LACs) and average
daily concentrations (ADCs) will be calculated for the complete exposure pathways indicated in a
section as applicable The following sections will describe the calculations used and their applicability
MKroWatcrs Inc bull PO Box 1088 Concord MA 01742 bull 800-588-8680
Town of MaibleheadFormer Railroad Righl-of Way 111695
MKW Project 950813 AppendixA Page 15
to each exposure profile The default exposure factors used for Average Daily Dose and Lifetime
Average Daily Dose are summarized below
Calculation of Average Daily Dose and Lifetime Average Daily Dose
Average daily doses and lifetime ADDs are calculated within this assessment for incidental ingestion
dermal contact with and inhalation of contaminated media The basic equations are as follows
= ADDsni
where ADD^ is the dose absorbed via dermal contact and
ADD is the dose received from incidental ingestion of soil
The complete equation for ADD^ is
ADD^ = [OHM]^ SA AF DAF EF ED
BW AP
where [OHM]^ = soil concentration of contaminant
SA = Body surface area
For aduks the value will be 5000 cm2 and for children the value will be 3000 cm2
DAF = Dermal Adherence Factor estimated as 0 01 for lead
AF = Absorption factor estimated as 0 51 mgsq cm
EF ED = Exposure duration and frequency estimated as 153 days per year 6 years
for children and 24 years for aduks
BW = Body weight in kilograms (70 for adults 15 for children)
AP = Averaging period which equals 6 years for children 24 years for adults
IvhKroWaters Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 16
The complete equation for ADD^ is
ADD^ = [OHM] IR BAF EF ED
BWAP
where FR = Soil incidental ingestion rate 50 mgday for
adults and 100 mgday for children 6 years old or under
BAF = Bioavailabilrty Factor which is assumed to
be 100 percent for all contaminants in this study
The complete equation for ADDW is
ADD= [OHM]M IR EF ED
BW AP
where [OHM]laquo = air concentration of contaminant mgm3
IR = inhalation rate in mVhr which will be
assumed to be 0 83 for all groups
EF ED = Exposure duration and frequency
BW = Body weight in kilograms
AP = Averaging period which equals 6 years for child exposures and 24 years
for residential adult exposures
In both equations conversion factors are incorporated so that the units for ADD and LADD are mgkgshy
day These values may then be compared to the published Carcinogen Slope Factors (SFs) and the
Reference Doses (RfDs) in the nsk characterization for the site
The ADD and LADD values are calculated for each contaminant of potential concern and for each
potential route of exposure in this case inhalation dermal contact and incidental ingestion of soil The
M Kro Waters nc laquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
111695 Town of MarbleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 17
ADDs and L ADDs calculated for the exposure profiles for this assessment are then added over all routes
of exposure and a single ADD or LADD value is achieved for each contaminant The results of these
calculations are summarized below
EXPOSURE PROFILE LEAD ADD LADD
CONCENTRATION
Child-General Public 921mgkg NA
Inhalation 68E-07
Ingestion 257E-03
Dermal Contact 26E-04
Calculation of Average Daily Concentration and Lifetime Average Concentration for Inhalation
Exposures
An ADD and a LADD may be calculated for inhalation exposures to hazardous site constituents
However in order to directly compare the inhalation exposure to the inhalation unit risk for carcinogens
or the Allowable Threshold Concentration for threshold effects the ATCs must be back-adjusted for the
default body weight and ventilation rate In this case however no inhalation unit risk values are
available for the contaminants of concern Therefore all inhalation exposures have also been calculated
on an average daily dose basis
VI RISK CHARACTERIZATION
The nsk characterization phase of the nsk assessment is the process in which the exposure point
concentrations are compared to potentially applicable or suitably analogous public health standards or
guidelines It is also the process by which average daily doses or average daily concentrations are
compared to documented nsk criteria in order to determine whether a threshold or an excess carcinogenic
nsk may be associated with potential exposures from the site These nsks may then be compared to
regulatory nsk limits in order to evaluate the need for remediation at a site Within an Imminent Hazard
evaluation the MADEP has provided a total site Hazard Index reference value of 10 and an excess
MyKroWaters Inc bull P O Box 1088bull Concord MA 01742 bull 800-588-8680
111695
1
Town of MaibleheadFormer Railroad Right-of Way
MKW Project 950813 Appendix A Page 18
lifetime cancer risk reference value of 1 in 10000 Risk calculations which result in calculated HI or
ELCR values exceeding these reference values indicate that an imminent hazard may be associated with
current site conditions
The imminent hazard evaluation for the subject property will follow the Method 3 guidance The
following sections describe the calculations conducted for each exposure profile
Threshold Health Effects
The potential risks associated with threshold (non-cancer) health effects are quantified as follows
Hazard Index = SUM ADDRfD + ADD2RfD2 + +ADDBRfD0
where ADD^ = average daily dose (or concentration) for each contaminant of concern
and RfD|0 = reference dose (or concentration) for each contaminant of concern
The Chronic and subchronic RfDs for lead are reported as the same value This value was used to
calculate adult and child exposures
Summary of Hazard Index Calculated Values
The Hazard Indices for the populations at potential risk were calculated as follows
Child lead concentration deg21 mgkg HI = 2
TheHazard Index value for the site average concentration is 2 which is below the imminent hazard
reference value
MKroWatcrs Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormcr Railroad Right-of Way 111695
MKW Project 950811 AppendixA Page 19
Non-Threshold (Carcinogenic) Effects
A lifetime excess cancer nsk may be calculated for inhalation or dermal contact with carcinogens by
using one of the following formulas The nsk estimate is a unrtless value The Massachusetts DEP has
established a reference total site nsk value of 1 x 103
For inhalation exposures
Risk = LADC Unit Risk
where Unit Risk is the nsk associated with exposure to an average lifetime exposure of
1 ugcu m
For dermal contact
Risk - LADD CPV
where the carcinogen potency value (CPV) is expressed as (mgkgday)1
Summary of Excess Lifetime Cancer Risk Calculations
No ELCR values were calculated for this imminent hazard evaluation since a slope factor was not
available for the contaminant lead
MgtKroWatcrs Inc raquo P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormer Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 2 0
VII SAFETY PUBLIC WELFARE AND ENVIRONMENTAL RISK
CHARACTERIZATION
The property under assessment has been open to the public as a recreational bikepedestrian path for
several years No reports of drums containers open pits lagoons or other dangerous structures have
been documented No threat of fire or explosionsrelated to a release of hazardous materials at the site is
expected since the contaminant of potential concern is inorganic lead in soils The contaminated soils
are not corrosive flammable or reactive nor has lead been identified in any samples at a concentration in
excess of the Upper Concentration Limit of 6000 mgkg Therefore no imminent threat to public safety
or welfare is presented by conditions at the property under assessment Groundwater samples collected
from three monitoring wells installed at depths of four to nine feet and fifteen to twenty feet indicated the
presence of several heavy metals The unfiltered water sample from well MK-1 identified lead at a
concentration of 3 54 mgL which exceeds the Upper Concentration Limit (UCL) of 0 3 mgL
documented in 310 CMR 40 0996(4) Table 6 The unfiltered lead concentration identified in well MKshy
2 0359 mgL also exceeds the UCL for lead By definition (310 CMR 400996(1)) Upper
concentration Limits in groundwater are concentrations of oil andor hazardous materials which if
exceeded indicate the potential for significant nsk of harm to public welfare and the environment under
future condition However no imminent threat to public welfare is anticipated based upon no use of
ground water
No imminent threat to the environment is anticipated to be associated with current conditions at the
subject srte No evidence of stressed vegetation has been reported No endangered environmental
species have been reported as present at the site
MKroWaters Inc bull PO Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MarbleheadFormcr Railroad Right-of Way 111695
MKW Project 950813 AppendixA Page 21
VIII UNCERTAINTY ANALYSIS
As with all risk assessments the assessment for the right away property is subject to uncertainty from a
variety of sources Many of these sources of uncertainty have been identified and discussed within this
report These uncertainties will be summarized in this section
Environmental Sampling and Analysis
Errors and uncertainties are inherent in all environmental sampling programs The collection of biased
samples may result in the overestimation of total site risk Uncertainties are also associated with the
analysis of contaminants No solvents were omitted from this risk characterization based on a limited
data validation The guidelines established within the EPAs Contract Lab Program were not applicable
to data generated for this project
Calculations of average concentrations were conducted for groundwater samples collected on the
property These values were derived using an arithmetic averaging equation Standard deviation values
were calculated assuming a normal distribution and n-1 degrees of freedom
No off-site background samples were collected for this project Background values were assumed to be
those reported by the MADEP for all compounds
Exposure Point Concentrations
The exposure point concentrations utilized in this assessment were limited to the ground water and soil
concentrations identified on-site during the sampling events conducted in 1995 No environmental fate or
transport modeling was conducted The use of the historic data without accounting for decreases in
concentration due to biotransformation degradation and transport should provide a conservative
estimate of future risks No off-site transport modeling was conducted off-she air concentrations were
assumed to be comparable to on-srte concentrations as a conservative approach
MvKroWaters Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
Town of MaiblcheadFormer Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 2
No air data was available for this site Air releases were estimated to be comparable to average open
field dust levels documented by the MADEP
Dose-Response Data
As referenced within the text of this report the dose-response values published by the US EPA and
Massachusetts DEP are another source of uncertainty in the risk assessment Uncertainty factors are
part of the equations for the slope factors reference doses ATCs and health advisories The uncertainty
factors are based on extrapolations between animal species high dose to low dose exposure duration
and varying routes of dose administration
Development of Exposure Profiles
The exposure profiles established within this assessment are based on professional judgment and
historical evidence The choices of exposure assumptions such as the frequency and duration of
exposure within each profile were also based on professional judgment and are believed to be
conservative estimates of potential exposures
MKroWatcrs Inc bull PO Box 1088 bull Concord MA01742 bull 800-588-8680
Town of MarblchcadFormcr Railroad Right-of Way 111695
MKW Project 950813 Appendix A Page 2 3
IX CONCLUSIONS
An Imminent Hazard Risk Characterization was completed for the property and resulted in the following
conclusions
1 A HI of 2 was calculated based upon the site average concentration
2 No significant excess lifetime cancer risk is anticipated to be attributable to the property No slope
factor was provided for lead
3 No imminent hazard risks to public safety welfare or ecological impacts are anticipated to be
associated with the site in its current condition and use However the Upper Concentration Limit
for the metal lead was exceeded in two of three unfihered wells installed and sampled in 1995
Based on the existing data and results of our imminent hazard evaluation it has been concluded that the
site in its present condition does not constitute an imminent hazard Due to elevated concentrations of
lead and TPH detected in shallow soils above the MCP S-lGW-3 we recommend that assessment and
response actions be taken at the site to achieve no significant risk Further we recommend resampling of
ground water with samples being filtered of sediment pnor to analysis due to the levels of lead found in
the ground water
MvKroWatcrs Inc bull P O Box 1088 bull Concord MA 01742 bull 800-588-8680
APPENDIX B
Town of MarblchcadFormer Railroad Rjght-of-Wagt 111695 MKW Project 950813 Appendix B Page 1
1 LIMITATIONS amp CONDITIONS
1 The observations described in this report were made under the conditions stated The
conclusions presented were based solely upon services described and not on scientific tasks or
procedures beyond the scope of described services or time and budgetary constraints imposed by
client This report has been prepared in accordance with generally accepted hydro-geological and
hydro-chemical practices No other warranty implied or expressed is made
2 MyKroWaters Inc has relied on certain information provided by state and local officials and
other parties referenced and on information contained in the files of state andor local agencies
available at the time of assessment in preparing this report MyKroWaters did not attempt to
independently verify the accuracy or completeness of all information reviewed or received during
the course of this assessment
3 In the event the owner client or agent obtains information on hazardous waste or environmental
issues at the site not contained in this report such information will be brought to MyKroWaters
attention MyKroWaters will evaluate such information and on the basis of this evaluation may
modify conclusions stated in this report
4 A thorough data validation was not conducted for the analytical reports compiled for this risk
characterization All data provided by the analytical laboratory reports has been accepted for use
in this assessment
VhKroWaters Inc raquo P O Bo 1088 bull Concord MA01742 bull 800-588-8680
WELL LOGS
MyKroWaters Inc Well ID MK-1 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
PipelD 062 PipeOD 082
Screen Slot Width 0015
Water Level 383 BGS 633 TOC
Refusal Yes
Points 1
Tubing 13
Vials 4
Bailers 1
Well development Inertial Pump
Sampling Intervals MK-1 SI (20-70)
Stick-up 25 Finish Locking Top
Ground Surface 00
Screen Top 20
Comments Refusal at 75 BGS
Total Riser 50 Screen 5 Feet Collars 0 Finish Locking Top
Screen Bottom 70
JTotal Depth 75
MyKroWaters Inc Well ID MK-2 P 0 Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 28
Water Level 16 64 BGS 19 64 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-2 SI (15 5-205 )
Ground Surface 00 mdash
Screen Top 155
Comments
Total Riser 190 Screen 5 Feet (
1
Collars 2 Screen Bottom 205 Finish Locking Top
Total Depth 210
MyKroWaters Inc Well ID MK-3 PO Box 1088 Installation Date 92595 Concord MA 01742 MKW Personnel GAJA MKW Project 950813 Equipment 6WDx6 Vibratory Drill
Client Town of Marblehead Site Location Marblehead Lead Mills Marblehead MA
Pipe ID 062 PipeOD 082 Points 1
Screen Slot Width 0015 Tubing 16
Water Level 496 BGS 7 96 TOC Vials 4
Refusal No Bailers 0
Well development Inertial Pump
Stick-up 30 Sampling Intervals Finish Locking Top MK-3 SI (40-90)
Ground Surface 00
Screen Top 40
Comments
Total Riser 95 Screen 5 Feet Collars 1 Screen Bottom 9 0 Finish Locking Top 1
Total Depth 95
LABORATORY DATA
149 Rangeway Road Phone 508-667-1400 North Billenca MA01862 Fax 508-667-7871 TEA
An Aquanon Company
Ms Deborah Famsworth Mykrowaters PO Box 1088 Concord MA 01742
October 27 1995
Dear Ms Famsworth
Please find enclosed the analytical results of the sample(s) received at our laboratory on September 27 1995 This report contains sections addressing the following information at a minimum
bull sample ID correspondence table bull chain-of-custody (if applicable) bull analytical methodology bull definitions of data qualifiers and terminology bull analytical results bull state certifications
Client Project 950813 Client Project Name NA
EEA Report M 133-026 Purchase Order NA
Copies of this analytical report and supporting data are maintained in our files for a minimum of 3 years unless special arrangements are made Unless specifically indicated all analytical testing was performed at the IEA-Massachusetts laboratory
We appreciate your selection of our services and welcome any questions or suggestions you may have relative to this report Please contact your customer service representative at (508) 667-1400 for any additional information Thank you for utilizing our services and we hope you will consider us for your future analytical needs
I have reviewed and approved the enclosed data for final release
Sincerely
Michael F Wheeler PhD Laboratory Director lEA-Massachusetts
MWslh
Doc RPF00100 MA
Monroe Sunrise Schaumburg Whippany Research Triangle Park Connecticut Florida Illinois New Jersey North Carolina
203 261 4458 305 846 1730 708 705 0740 201 428 8181 919 677 0090
IEA An Aquanon Company
Sample ID Correspondence Table
Client Sample m
A1S
A2S
BIS
B2S
CIS
C2S
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
G1S
G2S
IEA Sample ID
M133-026-01
M133-026-02
M133-026-03
M 133-026-04
M 133-026-05
M133-026-06
M 133-026-07
M133-026-08
M133-026-09
M133-026-10
M133-026-11
M133-026-12
M133-026-13
M133-026-14
M 133-026-15
M133-026-16
M133-026-17
M133-026-18
IEA An Aquarion Company
Sample ED Correspondence Table
Client Sample ED
HIS
H1I
HID
H2S
IIS
I2S
GRID BCDE-1 COMPOSITE
MK-1 (20-7 0)
MK-2 (155-205)
MK-3 (40-90)
IEA Sample ED
M133-026-19
M133-026-20
M 133-026-21
M133-026-22
M133-026-23
M133-026-24
M133-026-26
M133-026-27
M 133-026-28
M 133-026-29
IEA An Aquarion Company
Analytical Methodology
IEA utilizes approved environmental methodologies whenever possible and appropriate Due to the varying nature of sample matrices submitted to our laboratories we utilize a wide variety of analytical methodologies and quality assurance protocols Analytical results and Quality Assurance protocols employed by our network laboratories are based on guidelines specified in the following documents
(1) Methods of Organic Chemical Analysis of Municipal and Industrial Wastewater Federal Register Vol 49 No 209 October 26 1984
(2) Test Methods for Evaluating Solid Waste SW-846 Third Edition September 1986 USEPA
(3) Standard Methods for the Examination of Water and Wastewater 1985 14th 15th and 16th Edition
(4) Methods for Chemical Analysis of Water and Wastes March 1983 EMSL EPA
(5) Manual of Analytical Methods for the Analysis of Pesticides in Humans and Environmental Samples EPA 6008-80-038 June 1980
(6) Organic Analysis Multi-media Multi-Concentration-IFB-CLP January 1991 Document Number OLMO12 (plus revisions)
(7) Inorganic Analysis Multi-media Multi-Concentration-IFB-CLP Document Number ILM010
(8) Handbook for Analytical Quality Control in Water and Wastewater Laboratories EPA-6004-79-019 March 1979
(9) National Enforcement Investigation Center Policies and Procedures Manual EPA-330978001-R Revised May 1986
(10) Manual for the Certification of Laboratories Analyzing Drinking Water April 1990 EPA5709-90008
(11) NIOSH Manual of Analytical Methods August 1994 4th Edition
Doct RPF0020ZNET
IEA An Aquarion Company
Definitions of Data Qualifiers and Terminology
A number of data qualifiers are widely used within the environmental testing industry and may be utilized in our data reports The following definitions of these qualifiers are included as a service to our clientele The majority of the qualifiers have evolved from the EPA contract laboratory program (CLP)
B - This flag is used when the analyte is found in the associated blank as well as in the sample It indicates possibleprobable blank contamination and warns the data user to use caution when applying the results of this analyte
BQL - Below Quantitation Limit indicates the compound was not detected in the sample above the practical quantitation limit
D - Indicates the compound was diluted below the calibration range
E - Indicates that the concentration of the specific compound exceeded the calibration range of the instrument for that particular analysis
J - Indicates an estimated value The compound is determined to be present in the sample based on GCMS criteria but the amount is less than the sample quantitation limit IEA - MA GCMS reports do not typically report J - marked results If requested J - marked results are provided and the report flagged to verify that the data was appropriately reviewed
MDL - The method detection limit is defined as the minimum concentration of a substance that can be measured and reported with 99 confidence that the analyte concentration is greater than zero
NA - Not applicable or not available
ND - Indicates the compound or analyte was not detected in the sample above the method detection limit or the practical quantitation limit for the particular analysis
PQL - The practical quantitation limit is the lowest level that can be reliably achieved within specified limits of precision and accuracy during routine operating conditions
Doc RPF00201MA
IEA An Aquation Company
State Certifications
In some instances it may be necessary for environmental data to be reported to a regulatory authority with reference to a certified laboratory For your convenience the laboratory identification numbers for the lEA-Massachusetts laboratory are provided in the following table Many states certify laboratories for specific parameters or tests within a category (eg EPA method 624 for wastewater) The information in the following table indicates the lab is certified in a general category of testing such as drinking water or wastewater analysis The laboratory should be contacted directly if parameter specific certification information is required
lEA-Massachusetts Certification Summary as of April 199S
State Responsible Agency Area of Certification Lab Number
Connecticut Department of Health Services General 0646
Maine Department of Human Services Drinking Water Provisional Health and Environmental
Testing Laboratory
Massachusetts Department of Environmental PotableNon-Potable MA038 Protection Water
New Hampshire Department of Environmental Drinking Water 2519 Services Wastewater
New York Department of Health Wastewater 10838
North Carolina Division of Environmental Wastewater 333 Management
Rhode Island Department of Health Wastewater ASS
Virginia Department of General Drinking Water 00157 Services
Docf-RPFOOlOl M
IEA An Aquarkjn Company
IEA LABORATORY RESULTS
101295 Mykrowaters 950813
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
Results
273
1090
178
457
96
348
400
1210
440
175
175
3570
1230
470
Received Date 092795 IEA Job Number M133-026
Units
mgkg(dry)
mgkgdry)
mgkg(dry)
mgkg (dry)
mgkg(dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
Date PQL Analyzed
25 100995
25 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
25 100995
13 100995
25 100995
13 100995
13 100995
IEA Sample
1
2
3
5
7
8
9
10
11
12
13
14
15
16
Report DateClient Project
Client ID
A1S
A2S
BIS
CIS
C2I
C2D
D1S
D1I
DID
D2S
E1S
E2S
F1S
F2S
IEA An Aquanon Company
IEA LABORATORY RESULTS
Report Date 101295 Client Mykrowaters
Received Date 092795 IEA Job Number M133-026
Project 950813
IEA Sample Client ID
17 G1S
18 G2S
19 HIS
20 H1I
21 HID
22 H2S
24 I2S
26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE 26 GRID BCDE-1 COMPOSITE
27 MK-1 (20-70 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70) 27 MK-1 (20-70)
Parameter
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Lead
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
TOTAL METALS Arsenic Barium Cadmium Chromium Lead Mercury Selenium Silver
Results
540
337
1830
1500
1710
189
249
163 293 BQL 201 1530 011 BQL BQL
00827 049 BQL 0267 354
000089 BQL BQL
Units
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry)
mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry) mgkg (dry)
mgL mgL mgL mgL mgL mgL mgL mgL
PQL
13
13
25
25
25
25
25
050 10 10 30 25 010 050 20
00050 010 0010 0030 0025 000050 00050 0020
Date Analyzed
100995
100995
100995
100995
100995
100995
100995
100595 100695 100695 100695 100995 100595 100695 100695
100595 100595 100595 100595 100595 100395 100595 100595
TOTAL METALS 28 MK-2 (155-205) Lead 0359 mgL 0025 100595
TEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 101295 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Sample Date Client ID Parameter Results Units PQL Analyzed
TOTAL METALS 29 MK-3 (4 0-9 0) Arsenic 00676 mgL 0 0050 100595 29 MK-3 (4 0-9 0 ) Barium 084 mgL 010 100595 29 MK-3 (4 0-9 0) Cadmium BQL mgL 0010 100595 29 MK-3 (4 0-9 0 ) Chromium 0197 mgL 0030 100595 29 MK-3 (4 0-9 0) Lead 0116 mgL 0025 100595 29 MK-3 (4 0-9 0 ) Mercury BQL mgL 0 00050 100395 29 MK-3 (4 0-9 0 Selenium BQL mgL 0 0050 100595 29 MK-3 (4 0-9 0) Silver BQL mgL 0020 100595
COMMENTS PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
Resultswkl Rev 041393
=
IEA An Aquarion Company
IEA LABORATORY RESULTS
Report Date 102795 Received Date 092795 Client Mykrowaters IEA Job Number M133-026 Project 950813
IEA Leachate Regulatory Sample Result PQL Limit Date Client ID Parameter (mgL) (mgL) (mgL) Analyzed
= ==== ============ ======== = === ===== ====== === === === == ======= = === = gt== laquo======= =laquo====== raquoraquo==
TCLP METALS 14 E2S Lead 823 10 5 102595
COMMENTS
PQL = Practical Quantitation Limit BQL = Below Quantitation Limit
RESTCLP2 Rev 102893
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date Collected
101195 092595
Type Soil Container Glass
Received 092795 Analyzed By
092995 DB Dilution Factor 11
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 06
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquarion Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00302MA
IEA An Aquanon Company
Analysis Report Purgeable Petroleum Hydrocarbons by GCFID EPA 8015 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 092995 By DB Dilution Factor
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Gasoline (C5-C18) BQL 05
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - Dissimilar GC fingerprints
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00402MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint
Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
8-36
SQL SQL 1100 BQL BQL
20 20 100 100 100
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 shy No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-08 Project 950813 Sample C2D Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted 100295 Analyzed 100595 Dilution Factor 11 By DB
Petroleum Product Cn Range Result
mgkg(dry) PQL
mgkg(dry) Fingerprint Match Quality
Kerosene (C9-C22) Fuel Oil 2 (C9-C25) Fuel Oil 6 (C9-C38) Motor Oil (C14-C38) Coal Tar (C9-C36)
BQL BQL BQL BQL BQL
22 22 110 110 110
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-23 Project 950813 Sample IIS Report Date 101195 Type Soil Collected 092595 Container Glass Received 092795 Extracted Analyzed
100295 100795 Dilution Factor 42
By DB
Result PQL Fingerprint Petroleum Product Cn Range mgkg(dry) mgkg(dry) Match Quality
Kerosene (C9-C22) BQL 84 Fuel Oil 2 (C9-C25) BQL 84 Fuel Oil 6 (C9-C38) BQL 420 Motor Oil (C14-C38) BQL 420 Coal Tar (C9-C36) BQL 420 Unknown 8-36 1200 420
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doc GCF00105MA
IEA An Aquarion Company
Analysis Report Extractable Petroleum Hydrocarbons by GCFID EPA 8100 (Modified)
Client Mykrowaters IEA ID M133-026-27 Project Report Date Collected
950813 101195 092595
Sample Type Container
MK-1 (20-70) Water Glass
Received 092795 Extracted Analyzed
092995 100595 Dilution Factor 12
By DB
Result PQL Fingerprint Petroleum Product Cn Range (mgL) (mgL) Match Quality
Kerosene (C9-C22) BQL 06 Fuel Oil 2 (C9-C25) BQL 06 Fuel Oil 6 (C9-C38) BQL 3 Motor Oil (C14-C38) BQL 3 Coal Tar (C9-C36) 3
Match Quality Scale
1 - Identical or nearly identical GC pattern 2 - Similar GC pattern showing moderate differences 3 - Significant difference in GC pattern 4 - No agreement with GC patterns in target list Quantitation based
on petroleum product with similar Cn range
Comments
BQL = Below quantitation limit PQL = Practical quantitation limit Results for Motor Oil based on chromatographable portions
of petroleum product Cn range refers to the approximate chromatographic region covered by
the specified petroleum product in straight-chain carbon units
Doctt GCF00205MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-04 Sample B2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 2 1 BQL 1 BQL 1 BQL 1 70B 1 BQL 1 6 1 2 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-12-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
DOC GCF10500MA
IEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-04 Project 950813 Sample B2S
Purgable Aromatics
Number Compound PQL
ugkg (dry) ugkg (dry) Result
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
6
7 BQL
SQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
102 67
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
GCF10500MA
TEA An Aquanon Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
IEA ID M133-026-06 Sample C2S Type Soil Container Glass
Dilution Factor 1
PQL Result ugkg (dry) ugkg (dry)
1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL l BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 SB 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL 1 BQL
ClientProjectReport DateCollectedReceivedAnalyzedBy
Mykrowaters 950813
101195 092595 092795 100795
WJG
Purgable Halocarbons
Number Compound
1 Bromodichloromethane2 Bromoform3 Bromomethane4 Carbon tetrachloride5 Chlorobenzene6 Chloroethane7 2-Chloroethylvinyl ether8 Chloroform9 Chloromethane10 Dibromochloromethane11 12-Dichlorobenzene12 13-Dichlorobenzene13 14-Dichlorobenzene14 Dichlorodifluoromethane15 11-Dichloroethane16 12-Dichloroethane17 11-Dichloroethene18 cis-l2-Dichloroethene19 trans-12-Dichloroethene20 12-Dichloropropane21 cis-13-Dichloropropene22 trans-13-Dichloropropene23 Methylene chloride24 1122-Tetrachloroethane25 Tetrachloroethene26 111-Trichloroethane27 112-Trichloroethane28 Trichloroethene29 Trichlorofluoromethane30 Vinyl chloride
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-06 Project 950813 Sample C2S
Purgable Aromatics
PQL Result Number Compound ugkg (dry) ugkg (dry)
31 Benzene 1 SQL 32 Ethylbenzene 1 BQL 33 Toluene 1 BQL 34 Xylenes (Total) 1 BQL 35 Methyl-t-butylether 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 87 14-Difluorobenzene 50
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit B = Compound in blank
Doc GCF10500MA
IEA An Aquarion Company
Analysis Report EPA Methods 8010A8020A (PAGE 1 OF 2 PAGES)
Client IEA ID Method Blank (1007)
Project Report Date Collected
101195 Sample TypeContainer
Soil
Received Analyzed By
100795 WJG Dilution Factor
Purgable Halocarbons
PQL Result Number Compound ugkg (dry) ugkg (dry)
1 Bromodichloromethane 1 SQL 2 Bromoform 1 BQL 3 Bromomethane 1 BQL
BQL 14 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane
1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
16 12-Dichloroethane 17 1l-Dichloroethene 18 cis-12-Dichloroethene 19 trans-12-Dichloroethene 20 12-Dichloropropane 21 cis-13-Dichloropropene 22 trans-13-Dichloropropene 23 Methylene chloride 24 1122-Tetrachloroethane 25 Tetrachloroethene 26 111-Trichloroethane 27 112-Trichloroethane 28 Trichloroethene 29 Trichlorofluoromethane 30 Vinyl chloride
Doc GCF10500MA
1 l 1 1 1 1 1 1 1 1 1 1 1 1 1
BQL BQL BQL BQL BQL BQL BQL
1 BQL BQL BQL BQL BQL BQL BQL
IEA An Aquation Company
Analysis Report EPA Methods 8010A8020A (PAGE 2 OF 2 PAGES)
Client IEA ID Method Blank (1007) Project Sample
Purgable Aromatics
Number Compound PQL
ugkg (dry) Result
ugkg (dry)
3132333435
Benzene Ethylbenzene Toluene Xylenes (Total) Methyl-t-butylether
1 1 1 1 1
BQL BQL BQL BQL BQL
Surrogate Standard Recovery
14-Dichlorobutane 14-Difluorobenzene
113 94
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit Corresponding Samples M133-026-04 M133-026-06
Doc GCF10500MA
TEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 li-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 l122-Tetrachloroethane 24 Tetrachloroethene 25 111-Trichloroethane 26 1l2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 l l 1 1 1 1 1 1 l 1 1 l l 1 l 1 l l 1 1 1
Result (ugL)
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
DOC GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-27 Project 950813 Sample MK-1 (20-70)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 95 14-Difluorobenzene 91
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquarion Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 1 4-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 12-Dichloroethane 17 ll-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 11l-Trichloroethane 26 1 l 2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
SQL BQL
BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctt GCF10100MA
IEA An Aquanon Company
Analysis Report EPA Methods 601602 (PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-28 Project 950813 Sample MK-2 (155-205)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-12-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 72 14-Difluorobenzene 81
Comment
BQL = Below Quantitation Limit PQPQLL == PracticaPracticall QuantitatioQuantitationn LimiLimitt EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doctt GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 (PAGE 1 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90) Report Date 101195 Type Water Collected 092595 Container VOA Received 092795 Analyzed 100795 By WJG Dilution Factor
Priority Purgable Halocarbons
Number Compound
1 Bromodichloromethane 2 Bromoform 3 Bromomethane 4 Carbon tetrachloride 5 Chlorobenzene 6 Chloroethane 7 2-Chloroethylvinyl ether 8 Chloroform 9 Chloromethane 10 Dibromochloromethane 11 12-Dichlorobenzene 12 13-Dichlorobenzene 13 14-Dichlorobenzene 14 Dichlorodifluoromethane 15 11-Dichloroethane 16 l2-Dichloroethane 17 1l-Dichloroethene 18 trans-12-Dichloroethene 19 12-Dichloropropane 20 cis-13-Dichloropropene 21 trans-13-Dichloropropene 22 Methylene chloride 23 1122-Tetrachloroethane 24 Tetrachloroethene 25 ll1-Trichloroethane 26 ll2-Trichloroethane 27 Trichloroethene 28 Trichlorofluoromethane 29 Vinyl chloride
PQL (ugL)
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Result (ugL)
BQL SQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL
Doctf GCF10100MA
IEA An Aquation Company
Analysis Report EPA Methods 601602 PAGE 2 OF 2 PAGES)
Client Mykrowaters IEA ID M133-026-29 Project 950813 Sample MK-3 (40-90)
Priority Purgable Aromatics PQL Result
Number Compound (ugL) (ugL)
30 Benzene 1 SQL 31 Ethylbenzene 1 BQL 32 Toluene 1 BQL
Other TCL Compounds
33 Xylenes (Total) 1 BQL 34 Methyl-t-butylether 1 BQL 35 cis-l2-Dichloroethene 1 BQL
Surrogate Standard Recovery
14-Dichlorobutane 68 14-Difluorobenzene 89
Comment
BQL = Below Quantitation Limit PQL = Practical Quantitation Limit EPA Methods 601602 do not specify other TCL compounds Method analysis and QC for these parameters are laboratory derived
Doc GCF10100MA
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POSTED NOTICE
THE MARBLEHEAD MUNICIPAL LIGHT COMMISSION AND THE MARBLEHEAD WATER AND SEWER COMMISSION ARE CONDUCTING AN INVESTIGATION OF THE EXTENT TO WHICH HISTORIC LEAD CONTAMINATION EXISTS ON THIS SECTION OF THE FORMER RAILROAD RIGHT-OF-WAY UNTIL THIS INVESTIGATION IS COMPLETED THE COMMISSIONS RESPECTFULLY REQUEST THAT PERSONS NOT PROCEED BEYOND THIS POINT
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