SITE OPERATIONS PLAN ORIGINAL (red)OG 5.2 Respiratory Protection OG 5.4 HNU Photoionization Detection Operation s i OG 5.5 Organic Vapor Analyzer Operations OG 5.10 General Safety

| • Park West TwoCliff Mine RoadPittsburgh. PA 15275

CORPORATION 412-788- 1 oso

I D-3 1-7-4- 121 DRAFT

BL- -D

\ SITE OPERATIONS PLAN ORIGINAL

(red)BLOSENSKI LANDFILL SITEWEST CALN TOWNSHIP

CHESTER COUNTY, PENNSYLVANIA

EPA WORK ASSIGNMENTNUMBER 37-3L49.0

CONTRACT NUMBER 68-01-6699

NUS PROJECT NUMBER 0759.07

j SEPTEMBER 1984i

| 300384SUBMITTED FOR NUS BY: APPROVED:

SWh Aa - fff?.&U»*J»,~| SHER BAHADUR DONALD SENOVICH1 PROJECT MANAGER MANAGER, REMEDIAL PLANNING

IHalliburton Company

CONTENTSw

\ - ORIGINALI

TAB

1 DRAFT SITE OPERATIONS PLANBLOSENSKI LANDFILL SITE

2 DRAFT SITE-SPECIFIC QUALITY ASSURANCE PLANBLOSENSKI LANDFILL SITE

3 FINAL GENERAL HEALTH AND SAFETY REQUIREMENTSBLOSENSKI LANDFILL SITE

300385

(* -**£*" '

' ' ~ * " "A HalKburton Company

;-'2m,i iSjr.-i T • • •BS6gBi~"*fiEfr1S'riTf'-•.-. J ___ •* '.. H-fffy . ___

BLOSENSKI LANDFILL SITE WEST ICALN'foWNSHlP *

CHESTER COUNTY, PENNSYLVANIA

**"" 300386 ' 9•I

CONTENTS ORIGINAL(red)

SECTION PAGE

1.0 INTRODUCTION 1-1

2.0 GENERAL SITE OPERATIONS 2-12.1 NUS SUPERFUND DIVISION OPERATING GUIDELINES 2-12.2 PERSONEL RESPONSIBILITIES 2-22.3 SAMPLE NUMBERING SYSTEM 2-22.4 SAMPLE BOTTLE REQUIREMENTS 2-42.5 SAMPLE SHIPPING 2-42.6 DOCUMENTAITON 2-4

3.0 GROUND SURVEYING 3-13.1 PROPERTY SURVEY 3-13.2 GRID SURVEY 3-13.3 MONITORING WELL SURVEY 3-1

4.0 SURFACE SOIL SAMPLING 4-1| 4.1 NUMBER OF SAMPLES AND LOCATIONS 4-1• 4.2 SAMPLING METHODS AND CLASSIFICATION PROCEDURE 4-1

4.3 . DECONTAMINATION PROCEDURES 4-3• 4.4 PROCESSING, PACKAGING, AND SHIPPING 4-5

i 5.0 SURFACE WATER AND LEACHATE SAMPLING 5-15.1 NUMBER OF SAMPLES AND LOCATIONS 5-1

| 5.2 SAMPLING METHODS AND MEASUREMENT OF DISCHARGE 5-11 5.3 DECONTAMINATION 5-6

5.4 PROCESSING, PACKAGING, AND SHIPPING 5-6

I 6.0 SEDIMENT SAMPLING 6-16.1 NUMBER OF SAMPLES AND LOCATIONS 6-1

, 6.2 , SAMPLING METHOD 6-16.3 DECONTAMINATION PROCEDURES 6-26.4 PROCESSING, PACKAGING, AND SHIPPING 6-2

j 7.0 SURFACE GEOPHYSICAL INVESTIGATIONS 7-11 7.1 LEVEL OF INVESTIGAITON AND LOCATIONS 7-1

7.2 METHODS 7-1j 7.2.1 ELECTROMAGNETIC PROFILING SURVEY} {CONDUCTIVITY SURVEY) 7-1

7.2.2 VERTICAL ELECTRICAL SOUNDINGS, (RESISITIVITY SURVEY) 7-3

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CONTENTS (CONTINUED)

SECTION PAGE

8.0 TEST BORING AND MONITORING WELL INSTALLATION 8-18.1 NUMBER OF LOCATIONS OF TEST BORING AND WELLS 8-18.2 . METHODS 8-18.3 DECONTAMINATION PROCEDURES ' 8-3

9.0 SUBSURFACE SOIL SAMPLING 9-19.1 NUMBER OF SAMPLES AND LOCATIONS 9-19.2 METHODS 9-19.3 ANALYSIS 9-29.4 DECONTAMINATION PROCEDURES 9-29.5 PROCESSING, PACKAGING, AND SHIPPING 9-2

10.0 DRILLING WASTE SAMPLING 10-1

11.0 TEST PIT INSTALLATION AND SAMPLING 11-111.1 NUMBER OF PITS AND LOCATIONS 11-111.2 EXCAVATION PROCEDURE 11-111.3 SAMPLING METHODS 11-511.4 DECONTAMINATION PROCEDURES 11-511.5 PROCESSING, PACKAGING, AND SHIPPING 11-6

12.0 GROUNDWATER MONITORING 12-112.1 NUMBER OF SAMPLES AND LOCATIONS 12-112.2 SAMPLING METHODS 12-112.3 DECONTAMINATION PROCEDURES 12-312.4 PROCESSING, PACKAGING, AND SHIPPING 12-3

APPENDICES

A STANDARD SURVEYING PROCEDURESPRIMARY AND SECONDARY CONTROL TRAVERSE

B STANDARD SURVEYING PROCEDURESLOCATION OF WELLS

C DRILLING SPECIFICATIONS

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TABLES

iNUMBER PAGE

4-1 ANALYTICAL PARAMETER AND BOTTLE REQUIREMENTS 4-4FOR SOIL AND SEDIMENT SAMPLES

5-1 ANALYTICAL PARAMETERS, BOTTLE REQUIREMENTS 5-4AND PRESERVATIVES FOR WATER SAMPLES

11-1 TEST PIT EXCAVATION EQUIPMENT 11-2

FIGURES

NUMBER PAGE

4-1 POTENTIAL SOIL SAMPLING AREAS 4-25-1 GENERAL SAMPLING LOCATIONS 5-27-1 PROPOSED RESISTIVITY/CONDUCTIVITY SURVEY LINES 7-28-1 PROPOSED GROUNDWATER MONITORING WELL LOCATIONS 8-212-1 GROUNDWATER MONITORING DATA SHEET 12-4

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1.0 INTRODUCTION

The Site Operations Plan for the Blosenski Landfill Site contains a detailed sitespecific protocol for each major activity to be undertaken in the field. The

•5

I protocols address sampling objectives, sample types, sampling locations, samplenumbers and frequency, and procedures for collecting, handling, preserving,

1 packaging, and shipping samples. There are also protocols that address theguidelines and objectives of ground surveying, geophysical investigations, test pit

! excavation, and monitoring well construction.

. Each protocol is in accordance with EPA Region III and NUS Superfund Division1 Operating Guidelines. The guidelines and protocols will be adhered to as close as

possible by the field crews, but it is recognized that field conditions may require1 changes in the protocol. Any changes will be made based on best field judgment

and deviations from the protocols will be recorded by the site manager.

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| 2.0 GENERAL SITE OPERATIONS

I 2.1 NUS Superfund Division Operating Guidelines

NUS Superfund Division Operating Guidelines (OG) and Quality AssuranceProcedures (QAP) are intended to provide general technical guidance for projectactivities and to ensure quality work. The guidelines and procedures do not takeprecedence over the requirements of project-specific plans and may be modifiedaccordingly.

All protocols in this plan are in accordance with NUS Superfund Division OGs andQAPs. A list of applicable OGs and QAPs appears below. NUS personnel andsubcontractors performing work at the Blosenski Landfill Site should be familiarwith them.

QAP 4.1 Field Data CollectionQAP 4.2 Data Review, Reduction, and Reporting

i OG 4.7 Groundwater Well Sampling« OG 4.8 Tap Water Sampling

OG 4.10 Groundwater Level Measurement! ' OG 4.18 Chain of Custody

OG 4.19 Sample Packaging and ShippingI OG 4.23 Identification of Equipment Requiring Calibration

OG 4.25 Monitoring, Measuring, and Test Equipment MaintenanceI OG 4.29 Sampling

OG 4.31 Organization of the Field Teamt OG 4.40 Field pH Measurement• OG 4.41 Specific Conductance Measurement

OG 4.43 Decontamination! OG 5.2 Respiratory Protection

OG 5.4 HNU Photoionization Detection Operationsi OG 5.5 Organic Vapor Analyzer Operations

OG 5.10 General Safety Guidelines Applicable to All Field Operations

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1 ORIGINAL1 (red)4fc DRAFT

4 2.2 Personnel Responsibilities

I Typically, the field team will consist of the following types of personnel:

1 1. Field Team Leader2. Site Health and Safety Officer

f 3. Site Geologist <4. Field Operations Specialists

j 5. Subcontract Personnel

The exact composition of the field team will vary with the task. One person maybe required to assume two or more functions. Personnel assignments will be madeduring the preparation of the Site Specific Health and Safety Plan. The

\ responsibilities assumed by each function are outlined in OG 4.31, Organization ofthe Field Team.

2.3 Sample Numbering System

Each sample will have its own number, which will apply over the entire project.Each sample number will consist of a four-faceted alphanumeric code, which willidentify the site, the type of sample, the sample location, the number in the seriesat the location, and whether the sample is a duplicate or a blank.

The site code for Blosenski Landfill is BL. The sample type will be one of thefollowing:

SO - surface soilSS - subsurface soil 7SD - sedimentSW - surface waterMW - monitoring wellRW - residential wellLE - leachate

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DW - drilling waste| W - waste

i Each location will have a unique 3 digit number (i.e. 001, 002, etc) followed by theseries number. For example, the first time a monitoring well is sampled, the

! number for the test sample would be:

i BL-MW-001-1

If it is sampled again at another period in time, the sample would become:

BL-MW-001-2, etc.

IFor duplicates, a letter designation will be used for the duplicate sample. Forexample, the duplicate of:

f BL-SO-005-1i

I would be:

BL-SO-005A-1

iIf a duplicate is taken at that point again, the number would become:

BL-SO-005A-2, etc.

Field blanks will be designated by a 000 location number.

The first field blank for each medium would be, for example:

BL-SW-000-1

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The next field blank for a second series of surface water samples would be:

BL-SW-000-2, etc.

2.4 Sample Bottle Requirements

Sample Bottle Requirements follow normal EPA procedure ,and are specified ineach protocol under "sampling methods".

2.5 Sample Shipping

Sample packaging and shipping follows normal SMO guidelines for environmentaland high hazard samples. These guidelines may be found in each protocol underProcessing, Packaging, and Shipping.

2.6 Documentation

I Each sampling crew is required to keep a down range field notebook. This notebookwill be a weatherproof logbook that is to be filled out at the site of sample

j collection. The down range notebook will contain sample particulars, such asI sample number, time of collection, sample location, sampling method used,

weather conditions, sampler's name, and any other information specified underii each protocol. A second logbook will be kept by the team leader at the Site

Command Post. The command post logbook will be a standard issue, NUS logbook1 and will contain an abbreviated version of the down range logbook notes, field

analytical results, details on deviations from the protocol, health and safety notes,| visitor's names, community contacts, lab addresses, etc. The sampling notebook* will also be kept by the team leader or his designee. This is a controlled document, which incorporates all information on a sample and is to be completed during each> sampling round and kept in the control office file at the completion of a job.

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Traffic reports, chain of custody records, sample tags, packing lists, air bills, andcustody seals will be used following normal EPA Region III protocol. Refer to theSample Processing, Packaging, and Shipping section of each protocol for details.

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3.0 GROUND SURVEY

3.1 Property Survey

A traverse will be run to locate existing property lines, tree lines, and any otherlocal monuments needed to set the boundry. Courthouse research has beencompleted for deeds, tax maps, etc. at this time.

The traverse information will be plotted, computed, and coordinated by officecalculation. A second trip will be required to set the property corners and propertyline stakes.

The surveying procedures, standards of accuracy, and documentation required forthe Blosenski Landfill Site Property Survey are outlined in Appendix A, StandardSurveying Procedures: Primary and Secondary Control Traverse.

3.2 Grid Survey

Electromagnetic profiling is to be performed along surveyed, parallel lines northand south of the landfill, with perpendicular cross lines across and down thetopographic gradient of the site and surrounding land.

Optimal locations for geophysical investigations will be determined and marked inthe field. Surveyors will establish line locations, clear the brush along the lines,and hub and mark the lines every 200 feet.

The surveying standards, prescribed in Appendix A, will be followed.

3.3 Monitoring Well Survey

The monitoring wells located on this site will be surveyed both horizontally andvertically, with the "stickup" measured at each well.

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Horizontal control will be located directly off primary or secondary control surveybase lines. Angular measurements will be repeated at least twice and will requirean average angle within 10 seconds of the first angle.

Distance measurements will be with either an Electronic Distance Measurer (EDM)or steel tape and measured level or with correction made for slope reduction.Stadia is not to be used and is to be considered unacceptable..

Leveling measurements will be made on the well casing as part of a level circuit.Each well casing will be a turning point on the circuit. Turns will be made on thehighest point of the well casing and marked with paint. Stick-up distances fromground elevation shall be recorded to the nearest one-hundredth 'of a foot.

When static water levels are being measured to the top of the inside well casing,the casing will also be made a part of the level circuit. A turn will be made andmarked either with a black felt tip marker or paint.

Vertical control will be established on well casings (inside and outside) through aclosed level circuit. Each casing will be a turning point of the circuit, andtolerance of closure will not exceed 2.0 mm per kilometer (K), or 0.00061 in32801

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4.0 SURFACE SOIL SAMPLING

One of the disposal methods allegedly used at the Blosenski Landfill was dumpingof wastes directly on the ground. Onsite surface soils will be sampled and analyzedto determine the extent and nature of surface soil contamination.

4.1 Number of Samples and Locations

A maximum total of 25 surface soil samples will be obtained. One blank and twoduplicate samples will also be collected for analysis. Blank samples will be madeup of sterilized potting soil. The duplicates will be obtained from the samecomposite mixture as the original sample. The site manager will specify whichsample stations will be used for duplicates.

Soil sample stations have been chosen based either on visual evidence of soilcontamination, such as stains and stressed vegetation, or on indirect evidence, suchas site-specific records of chemical dumping or air monitoring readings.Uncontaminated background soil samples will also be collected. The potentiallocations for soil sampling stations are shown in Figure 4-1.

Composite soil samples will be collected from each area. Several composites maybe collected in each area, and this will be determined by visual inspection. Theexact sampling scheme will then be documented in the sample logbook.

4.2 Sampling Methods and Classification Procedure

Soil sampling procedures are in accordance with NUS Superfund Division OperatingGuideline 4.29 and other applicable Quality Assurance requirements.

At each sampling station, debris, twigs, rock fragments, and vegetation will beremoved from the ground surface. A stainless steel trowel or spoon will be used toscoop out 3 inches of soil. The subsample shall be separated from large rockfragments or twigs and placed in a stainless steel bucket. At least six subsamples

4-1 300398

I ORIGINA• BACKGROUND

^ S**™DRUM BURIAL AREA

-•v\

TANKER Q -

ACCESS ROADPOSSIBLE DRUMMED-LATEX WASTE

DRUM BURIALAREA

( EMPTY DRUMSIVSUSPECTED SOLVENT DUMPING AREJi j

HOFFMAN TRAILER

KINGS HIGHWAY VSITE TRAILER LOCATION

LEGEND- WELL a IDENTIFICATION NUMBER

* SEEP

H> DEWESSION

rW EMBANKMENTroc

POTENTIAL SOIL SAMPLING AREAS

300393

FIGURE 4-1

P POTENTIAL SOIL SAMPLING AREASBLOSENSKI LANDFILL SITE, WEST CALN TWR,PA

NOT TO SCALE4-2

A Halliburton Company

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will be collected in this way, making sure that the feature to be sampled (such asstained soil) has been adequately represented. If the feature is not obvious, sub-samples will be collected from an area covering one square meter.

The subsamples will be mixed in the bucket for at least 3 minutes. After thesample has been thoroughly blended, part of the soil will be transfered into two

•#8-ounce glass sample jars (See Table 4-1). The sealed jar will be sprayed and wipedclean and a completed NUS sample label will be affixed.

The sample number, date, and time of the sample will be recorded in the field notebook. A description of the location will also be provided. The sample stations willbe staked and marked with fluorescent flagging and sample number.

The mixed soil will be described and classified according to the Unified SoilClassification System (USCS). Rock fragments discarded during sampling will beconsidered in the classification. Samplers will wear a fresh pair of outer surgeonsgloves when handling samples to avoid cross-contamination of later samples. NUSSuperfund Division Operating Guideline 4.27 describes the field classification ofsoil and rock samples.

4.3 Decontamination Procedures

Sampling equipment will not be used until properly cleaned, both before thesampling session and between sample stations. For efficiency and to reduce thepotential of cross-contaminatin, enough sampling equipment will be brought topermit collection of a number of samples. Sampling equipment can then bebatch-cleaned and decontaminated. Contaminated equipment will be stored inplastic bags prior to decontamination or disposal.

Stainless steel equipment will be sprayed with a detergent and water solution,swabbed with acetone, and rinsed with Dl water. Clean equipment will be wrapedwith aluminum foil to avoid contamination.

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TABLE 4-1

ANALYTICAL PARAMETERS AND BOTTLE REQUIREMENTSFOR SEDIMENT SAMPLES

_______Parameter_______ ___Sample Bottle___ Preservative*

Extractable Organic Chemicals (1)* - 8 oz. glass jar cool to 4° Cand Volatile Organic Chemicals

HSL Metals (1)* - 8 oz. glass jar cool to 4° C

* Depends on CLP lab assignmentsHSL = Hazardous Substances List.

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4.4 Processing, Packaging, and Shipping

The samples will remain in the custody of the sampler throughout decontaminationpacking, processing, and shipping.

No additional physical or chemical processing is needed for soil samples. The soilswill be submitted for the full HSL analysis. To complete sample documentation forthese samples, all that is needed, in addition to the information in the sample notebook, is the EPA case numbers, laboratory addresses, and air-bill numbers.

The following forms should be completed for each sample:

• NUS sample label• Region III sample tag• Applicable traffic report• Sample log sheet

For each batch of samples that are shipped, the following should be filled out.

• Region III chain-of-custody record• Custody seals• Federal Express air-bill

The following procedure should be followed. Secure the sample lid with electricaltape, and attach the Region III sample tag during the last two wraps around the lid.Mark the sample level on the glass jar using a permanent marker. Place the jar andtag into plastic zip-lock bag and pack the jars into a sample cooler. Fill the cooler3/4 full of verminculite and place three to four ice packs over the vermiculite. Fillthe cooler with vermiculite and tape the sample documentation to the underside ofthe lid. Tape the cooler shut; affix custody seals, lab address labels, and air-billsto the coolers; and ship samples.

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5.0 SURFACE WATER AND LEACHATE SAMPLING

The purpose of sampling surface waters and leachate seeps is to identify andquantify any chemical pollutants that could migrate away from the site via surfacewater pathways.


During the remedial investigation, three sample rounds will be completed. In eachround, a maximum of 15 surface water/leachate samples will be collected fromstations on or around the landfill area. In addition one field blank will be preparedand one duplicate sample will be collected for each round. The blank sample shouldbe a field-prepared sample of deionized water. If possible, the duplicate samplewill be taken from a contaminated leachate seep. This will ensure thatcontaminants will be present when an analytical check is run. The site managerwill specify the sampling station where the duplicate sample is to be taken.

Two surface water samples will be taken from the small unnamed tributary toIndian Spring Run, one upstream and one downstream of the landfill. Additionalsamples will be collected from ponded marsh areas near the site. The remainingsamples will be retrieved from leachate seeps on the landfill. The approximatelocations of the sampling stations are indicated in Figure 5-1.

During sampling, each station will be marked with a wooden stake, flagged, andlabeled with the sample number.

5.2 Sampling Methods and Measurement of Discharge

Sampling methods will differ slightly among streams, leachate, and marshes.Surface water samples from small, shallow streams will be taken from the bank.When possible, all samples will be collected in their respective bottles. Bottlesshould be hand-held just below the surface with the mouth pointing upstream: thiswill prevent contaminants on the samplers hands or gloves from entering the

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PPROX. PROPERTY LINE

KINGS HIGHWAY \ ROUTE 340

•SITE TRAILER LOCATIONLEGEND

2-$- WELL 8 IDENTIFICATION NUMBER

**•— SEEP

*.~£ 5 DEPRESSIONI TOP

EMBANKMENTTOC

A SAMPLING LOCATIONS (GENERAL)

300404GENERAL SAMPLING LOCATIONS FIGURE 5-1

SURFACE WATER, SEDIMENT. LEACHATE B-IBLOSENSKI LANDFILL SITE, WEST CAIN TWP.PA _? |\ILJS

NOT TO SCALE ___ CXDRPORATON5~2 Q A Halliburton Company

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sample bottle. Also, care should be taken to avoid stirring up bottom sediment andtrapping this material in the bottle. In the event that the water is too shallow tosubmerge the sample bottles, the water will be collected with a glass beaker or aclean 8-ounce glass jar, and then transferred to the sample bottle. Glass bottlesshould never be filled from a plastic container.

In the event that little or no flow is found; a small pit, 12 inches deep, will be duginto the stream bed in an effort to locate underflow or collect very small flows. Ifthis fails, only a sediment sample will be taken.

The procedures for sampling ponded marsh areas is the same, except that in somecases it may be necessary to collect samples with a stainless steel or glasssampling cup attached to a long pole. This eliminates the disturbance of softmarsh sediment and subsequent contamination of the sample.

Leachate samples should be collected last to avoid the systematic contamination ofless contaminated surface waters. Leachate samples should be collected as closeas possible to the breakout point to avoid the evaporative loss of volatilechemicals. When flow is sufficiently deep, the samples can be collected with aglass beaker. Most often, however, it will be necessary to dig a small pit in thepath of the leachate and wait until it fills with enough liquid for a sample.Leachate samples should never be collected during or shortly after periods ofsignificant rainfall. If leachate seeps are dry or if there is insufficient flow,ponded water in drainage ditches or depressions that may be receiving leachate willbe sampled. Otherwise only a sediment sample will be taken at the station.

Analytical parameters and bottle requirements for surface water and leachatesamples are shown in Table 5-1.

Flow rates will be estimated any time a sample is collected from a major drainageway. The following procedure, described in the Bureau of Reclamation's WaterMeasurement Handbook, provides a good approximation of the flow rate.

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TABLE 5-1

ANALYTICAL PARAMETERS, BOTTLE REQUIREMENTSAND PRESERVATIVES FOR WATER SAMPLES

_____Parameter ___ Sample Bottle Preservative

Extractable Organic Chemicals 2 1/2 gal. glass Cool to 4° C

Volitile Organic Chemicals 2 20 ml septum Cool to 4° C

HSL Metals 1 1 liter polyethelene HNO3, pH<2

COD 1 500 ml polyethelene H2 804, pH<2

BOD 1 500 ml polyethelene Cool to 4° C

TDS, C03, HC03804, N03, Cl, Ca 1 1 liter polyethelene Cool to 4° C

Ca, Mg, Na, K 11 liter polyethelene* H N03, pH<2

* This bottle may be omitted, depending on CLP lab assignments.

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I • Select a relatively straight segment of stream of relatively uniformwidth. The length (L) of the stream segment should be as long as possible

I but not less than 20 feet.

I • Measure the width (W) of the stream at the top, middle, and bottom of thesegment, from the edge of moving water on one bank to the edge of

I moving water on the opposite bank.

I * A t each transect where width w a s measured, t h e depth should b emeasured at 3 equidistant points. A string across the stream is helpfullfor this.

• All measurements should be in feet or in seconds.

I• Estimate the velocity by timing a float from one end of the transect to

another. A good float is a small round plastic bottle 1/3 full of water. Insmall streams, a wooden bobber can be used. Make this measurement atleast 3 times, and always release the float a few feet above the upstreamtransect.

• Calculate the flow rate using the formula:

where: Q = flowrate in CFSW = average width in feetD s average depth in feetL B length of segmentT « average time in seconds for float to travel La * constant for average velocity:

.8 for rough bottom

.9 for smooth bottom.

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I 5.3 Decontamination

1 Glass wear used in sample collection will be dedicated. All other material used forsampling will be scrubbed with a detergent and water solution, rinsed with potable

I water, rinsed with acetone, and rinsed again in deionized water.

| Decontaminated utensils will be wrapped in aluminum foil if fmmediate reuse is notanticipated.

' 5.4 Processing. Packaging, and Shipping

The samples will remain in the custody of the sampler throughout decontamination,packaging, processing, and shipping.

Processing of surface water samples includes measurement of temperature, pH,and specific conductance, and the addition of preservatives.

f When possible, sample pH and conductivity should be measured at the sample1 station immediately upon collection of the sample. If conditions do not permit, this, an extra sample bottle may be filled and brought back to the field office for( batch processing, provided the samples are cooled, and the length of time is not

excessive. Conductivity will be determined with a Hach mini conductivity meter,j according to methods specified in NUS Superfund Division Operating

Guideline 4.4.1. The pH will be measured with a Hach pH meter, as per Operating• Guidline 4.40.

The appropriate preservatives, noted in Table 5-1, should be added at the fieldoffice, preferably outdoors or in a well ventilated area as soon as possible after

I sample collection.£

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Sample documentation and packaging for extractable organics, VOA, and HSLmetals, follow normal EPA Region III procedure and are essentially the same asthat described for soil samples in Section 4.4. Analyses of COD, BOD, TDS,cations, and anions are Special Analytical Services and, in addition to normalpaperwork, will require

• SAS number• SMO/SAS sample packaging list.

i4

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I 6.0 SEDIMENT SAMPLING

Sediments will be sampled because pollutants, partically heavy metals andhydrophobic organics, tend to concentrate in this medium over time.Contaminated sediments can be a long-term source of pollution after the pointsource has been abated.


A maximum of 15 sediment samples will be collected. In addition, one blank andone duplicate sample will be provided. The blank sample will consist of sterilizedpotting soil and can be the same as that submitted with the soils if CLP lab slotsare prohibitive. The duplicate sample will be pulled at one of the leachate streamsto insure that contaminants are detected when an analytical check is run. The sitemanager will specify at which sample station the duplicate sample is to be taken.

Sediment samples will be collected at each station a surface water sample is taken,I as well as all stations where it was impossible to get a water or leachate sample.i

f 6.2 Sampling Methodi

The sediment samples should always be collected after surface water samples havej been obtained.

I At sampling stations where there is a significant depth of water over the sediment,a piston type corer or similar device will be used. Sediment samples will be placed

I into two1 8 ounce glass jars.j

1 Depending on CLP laboratory assignments

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At all other stations, where the water depth is neglegibie, the sediment sampleswill be collected in a manner similar to that used for collecting soils. Forsediments, however, composite subsamples should not be mixed in a bucket, sincethis would cause the suspension and loss of the more heavily contaminated finematerial. Three or four small scoops of sediment will be taken from a location,drained slightly, and placed directly into the 8 ounce sample jars.

<


Sampling equipment will be washed with soapy water, rinsed with water, washedwith acetone, and rinsed with deionized water. Utensils not immediately reusedwill be wrapped in aluminum foil for storage.

6.4 Processing, Packaging, and Shipping

Sediment samples will be submitted for full HSL analysis (See Table 4-1).Procedures are the same as those outlined above for soil samples.

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ORIGINAL7.0 SURFACE GEOPHYSICAL INVESTIGATIONS

A resistivity/conductivity survey will be performed at the Blosenski Landfill inorder to help define subsurface geologic conditions, bedrock fracture patterns, andgroundwater flow conditions in the area.

7.1 Level of Investigation and Locations

A site reconnaissance will be conducted to observe the physical features of the siteand surrounding land so that optimum geophysical investigation locations may bedetermined. When the optimum locations for investigations are determined,surveyors will establish line locations, clear the brush along the lines, and hub andmark the line every 200 feet.

An estimated 3 km of electromagnetic profiling (EMP) will be conducted. SeeFigure 7-1 for proposed EMP lines. An estimated 10 vertical electrical soundingswill be performed at selected locations, based on the EMP data.

7.2 Methods

7.2.1 Electromagnetic Profiling Survey (Conductivity Survey)

Electromagnetic profiling is to be performed along surveyed, parallel lines northand south of the landfill, with cross lines running NE-SW across and down thetopographic gradient of the site and surrounding land. A Geonics EM 34-3 terrainconductivity meter will be used to collect the data at station spacings of 10 metersfor the 10 meter intercoil spacing, and station spacing of 20 meters for the20 meter intercoil spacings along all lines. This method will provide verticallyaveraged conductivity profiles for depth intervals of 0-25', 0-50', and 0-100'.

3004127-1

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1 ORIGINALL (red)P

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DRAFT

7.2.2 Vertical Electrical Soundings (Resistivity Survey)

Electrical sounding will be performed at selected locations based on the EMP data.The soundings will be conducted along existing EMP lines. When possible, soundingswill be conducted perpendicular to the EMP lines to account for lateral variaitonsbeneath the current and potential electrodes.

4

A Bison 2350B resistivity meter will be utilized to obtain sounding data using theSchlumberger electrode array. Readings will be taken to provide apparentresistivity data to a depth of approximately 100 feet.

300414

7-3

1 ORIGINAL

i

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(red)DRAFT

8.0 TEST BORING AND MONITORING WELL INSTALLATION

Test borings will provide data on subsurface geology. Monitoring wells installed inthese borings during this investigation will be used to verify directions ofgroundwater flow, and the presence or absence of contaminants and theircharacteristics.

4

8.1 Number and Locations of Test Borings and Wells

A total of 11 test borings will be drilled by the subcontractor at approximatelocations shown in Figure 8-1. Monitoring wells will be installed in each testboring.

Four locations will be on the north down-slope side of the landfill. At each down-slope location, two holes will be drilled, one hole for a shallow well (approximately40 .feet deep) in over burden material and one deep well (approximately 70 feetdeep) in bedrock. On the south or uphill side of the landfill, three deep wells, eachabout 120 feet deep, will be installed. No shallow wells are planned for this areabecause the overburden is relatively thin and considerations of topography suggestthat there is no significant component of shallow ground water flow in thisdirection.

8.2 Methods

The drilling specifications outline test boring methods and monitoring wellinstallation and are included in Appendix C. The site geologist will monitor testborings and well installation to ensure that the requirements of the drillingspecifications are met. The site geologist may revise locations, drilling methodand total depth of the hole as needed. Records as required to document themonitoring well installation will be maintained by the site geologist. As aminimum, the daily drilling log sheets included in Appendix C must be filled out.

300415I

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(red) DRAFT8.3 Decontamination Procedures

Decontamination procedures are detailed in the drilling specifications.

3004178-3

RIGINAL(red) DRAFT

9.0 SUBSURFACE SOIL SAMPLING

During the test boring, subsurface soil samples will be collected with a split barrelsampler and submitted for HSL Analysis. The soil samples will be screened byheadspace analysis using an organic vapor meter to help determine which samplesshould be sent for chemical analysis. In addition to soil samples, characteristicsamples of bedrock will be taken from cuttings at the air vent' pipe.


The number of samples to be taken at each test boring is at the discretion of thesite geologist and will depend on geologic features and/or wastes encountered.However, only an estimated 20 samples will be submitted for laboratory analysis.This decision will depend on the rapid field screening described below and on thejudgement of the geologist.

9.2 Methods

Split barrel sampling will be preformed by the drilling subcontractor according tothe methods outlined in the drilling specifications (Appendix C). It will be theresponsiblity of the site geologist to ensure that the specifications are met.

Once the split barrel samples are obtained, the contents will be immediatelyscreened for organics vapors and carefully described as to composition, structure,consistency, color, and condition. Based on this information, the site geologist willdecide which samples will be sent for chemical analysis.

All samples for chemical analysis should be broken out with a stainless steel spoon,split longitudinaly with a stainless steel knife and placed into two 8 ounceSMO/CLP glass sample jars. The bottles will be labeled with date, time, and NUSsample number. The NUS sample number, boring number, depth penetrationrecord, length of recovery, sample date, and time will be recorded in the fieldnotebook.

00418

ORIGINAL(red) DRAFT

I Because it is not known which samples will be submitted, at least one duplicatesample per boring should be collected to ensure that QA requirements are met.

I Duplicate samples should be obtained by quartering the section with a stainlesssteel spoon before it is split. Alternating sections should be chosen for the

i duplicate.

1 . 9.3 Analysis

| Field screening of subsurface soil samples will be accomplished with an organic' vapor meter. Upon opening of the split barrel sampler, the site geologist or field. operations specialist (if present) will immediately scan the air directly above the1 sample with an organic vapor meter. A reading above background will indicate that

the sample should be sent for chemical analysis. All results should be fullyj documented in the daily and sample logs.


f Appropriate decontamination procedures for the drilling rig, drill rods, and down! hole tools are described in Appendix C. Soil sampling tools should be treated in a

manner identical to that described above for surface soils.s

9.5 Processing. Packaging, and Shipping

iAlthough soil samples can be retained for extended periods without special handling

tthey should be held no longer than a week where volatile chemicals are concerned.The site geologist should project the number of samples that will be collected each

\ week and allow time for field screening, packaging, and shipment. A blank andduplicate sample should be submitted each week.

i

i Unless bulk waste is encountered or otherwise indicated by the gas chromatograph,subsurface soils will be considered as environmental samples and will be packagedand shipped as described above for surface soils.

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Lithology samples not sent for analysis but which will be retained and stored forfuture reference must have chain-of-custody initiated at the time of sampling. Itis the responsiblity of the site geologist to ensure that the proper paperwork iscompleted for all samples.

*

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10.0 DRILLING WASTE SAMPLING

During the construction of test borings, a composite sample of drilling mud andcuttings will be collected at each hole. The sample will be dispensed into two 8-ounce jars. The waste sample will be screened for organic vapors using portablegas chromatography. The results will be used to determine a proper disposalmethodology for the drilling waste. Action limits will be established by the RSPOand the Project Manager.

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, ORIGINAL(red) DRAFT

11.0 TEST PIT INSTALLATION AND SAMPLING

Test pits will be used to determine subsurface information regarding natural soilconditions and buried waste. Test pits will also be a source of waste sampling.

11.1 Number of Pits and Locations*

A maximum of 10 test pits will be excavated. Test pits will be excavated to adepth specified by the NUS field representative. The pits will be located in areasadjacent to the suspected drum burial areas and used to define the extent of theareas and to collect samples of the wastes or contaminated soils associated withthem.

An estimated 10 soil or waste samples will be collected from the test pits. Whenencountered, waste materials should be sampled. If no wastes are found, a soilsample should be collected from the unexcavated bottom of the test pit. Thesamples will be analyzed for the full HSL

« One. blank and one duplicate sample should be submitted for analysis with these, samples. The blank sample should consist of deionized water or potting soil,I whichever is appropriate. The duplicate sample should be obtained from waste

materials.

11.2 Excavation Proceduref

A subcontractor shall be retained for test pit excavation. All excavation shall bef in accordance with 29CFR1926, Subpart P and all applicable OSHA standards. The* subcontractor shall provide operators who have experience operating the equipmenti to be used for the test pit excavations. The operators will be required to remain at1 the controls of the equipment while personnel are in proximity of the test pit. The

equipment listed in Table 11-1 is expected to be necessary.

1

30042211-1

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DRAFT

TABLE 11-1

TEST PIT EXCAVATION EQUIPMENT

1.* Class A backhoe to be supplied and operated by the subcontractor forexcavation and sampling purposes.

a.* Front-mounted loading bucket of at least 0.5 yd3 capacity is required.

b. Rear-mounted backhoe with a bucket of at least 0.3 yd3 capacity isrequired.

c. Backhoe must be suitable for excavation to a minimum effective depthof 12 feet.

d.* Rubber tires are required, no cleated equipment.

I e.* Backhoe bucket must be constructed of non-sparking material.

j f.*The backhoe shall be equipped with blast protection equipment as'• described in the instructions to bidders (attachment).

I 2.* Class B backhoe to be supplied and operated by subcontractor for excavationand sampling purposes.

a. Backhoe bucket of at least 0.6 yd3 capacity shall be required.

b. Backhoe must be suitable for excavation to a minimum effective depth of! 18 feet.

, c.* Rubber tires shall be required, no cleated equipment.

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TABLE 11-1TEST PIT EXCAVATION EQUIPMENTPAGE TWO

d.* Backhoe bucket must be constructed of non-sparking material.

e.* The backhoe shall be equipped with blast protection equipment asdescribed in the instructions to bidders (attachment).

3.* Bulldozer of appropriate size and type to be supplied and operated by thesubcontractor for excavation purposes.

4.* Bulldozer of appropriate size and type to be supplied and operated by the1 subcontractor for the purposes of site access development and the clearing of

trees and brush.

Selection of these criteria left to the discretion of the Project Manager.

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The subcontractor shall, at his own time and expense, procure all permits, licenses,and certificates that may be required of him by law for the execution of the workhereunder. The subcontractor shall comply with all federal, state, and local laws,ordnances, rules and regulations relating to the performance of the workhereunder. In addition, the subcontractor shall be responsible for clearing andgrubbing and construction of access roads and level pads as necessary to provideadequate work areas for test pit excavations.

NUS is responsible for contacting utility companies and verifying the location of allexisting underground cables, gas mains, or other utilities. The NUS fieldrepresentative will be responsible for location of test pits with respect to suchfacilities. The location of the test pits shall be altered if necessary to avoid anydamage to existing utilities. During the progress of the work, the subcontractorshall cooperate with the owners of utilities and permit their representatives accessto the work area to determine if their utilities are being endangered in any way.

Should barrels be encountered in any test pit excavation, they will not be removedfrom the excavation. In the event that groundwater is encountered, NUS personnelshall determine the practicality of further excavation within the test pit. Shouldboulders or other obstructions be encountered, an alternate test pit location maybe selected, as directed by the NUS field representative.

During excavation, sampling, and backfilling, NUS personnel will continuouslyconduct air monitoring with an organic vapor meter.

Test pits and trenches will be logged by the field geologist. All informationcollected will be recorded on a sheet of graph paper which will serve as the logsheet. The log sheet should include: (1) a scaled sketch of the excavation showingat least one wall of the pit and the shape and orientation of the pit at the groundsurface; (2) a log of soils encounterd in the pit, including a complete description ofeach of them; (3) general information such as the project name and number, pitnumber, date, name of geologist, pit location, (either coordinates or distance fromfixed points onsite), type of excavation equipment utilized; and (4) any additional

11-4 300425

(red)DRAFT

data, including sample numbers and depths, any seeps or water flow encountered,zones of contamination, etc.

Before measuring the depth to the groundwater table (if encountered) in test pits,the field geologist will allow sufficient time for the stabilization of thegroundwater table.

<

Before backfilling, all significant geologic features exposed by the test pit andtrench will be photographed, with a scale included in the photographs to indicatedimensions. The photographs of test pits will be marked to include site number,test pit number, depth, description of feature, and date of photograph. In addition,a geologic description of each photograph should be entered in the logbook. Allphotographs will be indexed and maintained for future reference.

Upon completion of excavation, sampling, inspection, and logging, the excavatedmaterials will be backfilled into the test pit under the direction of the sitegeologist.

11.3 Sampling Methods

Solid waste material soil and liquid samples will be collected remotely withstainless steel or glass cups attached to wooden or metal poles. Samples will becomposited in the sample jars to represent the contamination present in the pits.However, readily identifiable wastes should be collected separately as grabsamples. This will be determined by visual inspections.


A central decontamination station will be constructed onsite by the subcontractor.The location will be determined by the NUS Representative. Additional temporarydecontamination areas will be required at each location. The subcontractor willsupply tap-quality water obtained from an approved offsite source, brushes anddecontamination solutions, and a washings collection pad. Personnel

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f DRAFT

decontamination is required for outer boots and gloves. Outer boots and gloves areto be rinsed off at borehole decontamination areas. Complete personneldecontamination is to be done at the central decontamination location. Thepersonnel decontamination procedure shall be as follows:

a. Rinse with tap-quality water and brush to remove visible solids.b. Wash with mild detergent.c. Rinse with tap water.

Washings and spent solutions will be disposed onsite.

Sampling equipment will be decontaminated in the same manner prescribed forsurface soil sampling equipment. The sealed sample jar should be sprayed with adetergent and water solution and wiped clean.

11.5 Processing, Packing, and Shipping

| If samples are taken in the vicinity of drums or buried wastes, they should beconsidered to be medium hazard samples. Waste samples should be considered to

i be high hazard. If no waste material is encounterd, treat samples as surface soilsi and process, package, and ship accordingly.

] The processing packaging and shipping procedure for high hazard samples is asfollows:

• Attach properly completed sample identification tag (i.e. an EPA or NUS| sample label) to sample container.i

t • Seal sample container and place in small zip-lock bag.

ti

• Place one sample container each inside 1/2 gallon metal paint cans andfill can with vermiculite. Close can and secure lid with clips and tape.

30042711-6

I OR16IML£) (red) DRAFTt • Place DOT "Flammable Liquid, n.o.s." or "Flammable Solid, n.o.s." on

each sealed can and also "Cargo Aircraft Only" labels.

• Seal the drain plug of sample cooler and line with a plastic bag. Packagei sealed and labeled cans into coolers and fill with vermiculite.

| • Mark cooler with same labels as above. Also mark /'Laboratory Samples"and 'This Side Up" on the cooler.

' • Complete carrier provided bill of lading and sign the certification, statement. If no documentation is provided by carrier, complete standard1 industry form providing information in following order

i - "Flammable Liquid, mo.s." (or Flammable Solids, n.o.s.)- "Cargo Aircraft Only"- "Limited Quantity" or "Ltd Qty"- "Laboratory Samples"- "Net Weight ____" by item/per cooler- "Net Volume ____" by item/per cooler

• Fill out chain-of-custody record and place all paperwork in plastic bag andtape to lid of cooler.

• Tape cooler shut at carrier with custody seats and tape.

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12.0 GROUNDWATER MONITORING

The groundwater monitoring program will provide information on groundwaterflow, composition, and movement of the contaminant plume. Information gainedfrom groundwater monitoring activities will aid in the selection and planning ofremedial alternatives and will also provide information on the effectiveness of theremedial measures.


The proposed monitoring well network is shown in Figure 8-1. The proposednetwork consists of four shallow wells (approximately 40 feet deep) and seven deepbedrock wells (between 70-120 feet deep). The shallow wells will be equipped withfour inch stainless steel well screens and riser-pipes. The deeper wells will besealed from the shallow aquifer by a length of six inch steel pipe and will end in afour inch diameter open bore hole.

During the remedial investigation, three sampling rounds, approximately two weeksapart, will be completed. In each round, the eleven monitoring wells and fouradditional residential wells will be sampled. In addition, one duplicate sample andone field blank will be obtained for each round.

If possible, the duplicate sample will be taken from a contaminated well. This willinsure that contaminants will be present when an analytical check is run. Theblank sample will be a field-prepared blank of deionized water. The site managerwill specify at which well a duplicate sample will be taken.

12.2 Sampling Methods

The site specific sampling procedures for Blosenski monitoring wells are inaccordance with NUS Superfund Division Operating Guideline 4.7 and otherapplicable Quality Assurance Procedures.

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Monitoring wells will be purged prior to sampling to remove stagnant water that isunrepresentative of formation groundwater. Purged water must be disposed ofaccording to all applicable EPA and PADER regulations if hazardousconcentrations are found to exist. A proper disposal methodology will bedetermined and arranged for during the subsurface investigation.

An electric, submersible pump equipped with a discharge line consisting ofthreaded rigid PVC pipe, will be used to purge the monitoring wells. The dischargeline should be equipped with a length of flexible tubing and a spigot valve to allowcontrolled measurements of flow rates. Half-inch, woven-dacron or nylon chord orstainless steel cable should be attached to the pump and used for raising orlowering the rig.

The static well volume will be calculated using the formula:

V = Tr2 0.163

i where T is the linear feet of static water and r is the inside radius of the well*4 casing, in inches. Water-level measurement should be made before the pump isj installed in the well. Also, to establish the initial pH, temperature, andi conductivity of the water, a sample should be taken when pumping is initiated.

| Up-gradient wells will be pumped first to avoid systematic contamination of thewells. The site geologist should be consulted about the sequence of well sampling

j and the appropriate depth at which the pump should be placed in each well. Duringpumping, the spigot should be adjusted to obtain a relatively constant flow rate,

? which should be estimated by timing how long it takes to fill a large vessel, such asa garbage can.

' Monitoring wells will be purged until temperature, pH, and specific conductance ofthe water stabilized. However, no more than five well volumes will be removed

j prior to sampling. A stable condition is indicated when two of the threeparameters show no definite trend or excessive fluctuations in three successive

12-2 300430

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*i

DRAFT

samples. Changes greater than 2°C in temperature, one-half a pH unit and/or 50umhos/cm in conductivity are to be considered as significant. All data should berecorded on data sheets similiar to that shown in Figure 12-1.

Wells will be sampled as soon as possible after purging. Lab samples will be takenwith clean, dedicated stainless steel bailers. The appropriate bottles will be filleddirectly from the bailer. Analytical parameters and bottle'requirements are thesame as those for surface waters (see Table 5-1). In warm weather, the samplesshould be placed immediately on ice.


The pump should be disconnected from the discharge line and emptied. The outsideof the pump and discharge line will be scrubbed with detergent and water and thenrinsed with Dl water. The equipment will then be swabbed with paper towelssoaked in acetone and rinsed again in Dl water. The nylon cord will be discarded.All purging equipment going into the wells will be stored on plastic sheets duringmobilization.

i Each sample bailer will be used in one welt only. Cords used with the bailers should» be discarded. Once used, bailers or other equipment will be stored in plastic

garbage bags.1

12.4 Processing, Packaging, and Shippingj

Packaging, processing, and shipping of monitoring well samples basically follows[ the procedures outlined for surface water samples. Unlike surface water, the

metals portion of the monitoring well samples must be filtered to remove1 sediments and particulates that are not normally found in groundwater. Prior to• the addition of the preservative, the metals portion will be pre-filtered through a. coarse glass-fiber filter (if necessary) and then vacuum filtered through aI 0.45 micron membrane filter. Glasswear will be washed in soapy water, rinsed in

deionized water, and then rinsed with between each sample.

112-3 300431

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DRAFT

Remarks:

FIGURE 12-1

GROUNDWATER MONITORING DATA SHEET

1 Monitoring Well No. _____________Date Purged _____________Stick Up (feet) _____________Static Water Level before Purging (feet) _________•Total Depth (feet) _____________Height of Water Column _______________Inside Diameter of Well (inches) _______________Volume (V=D*r2*0.163) (gallons) _______________

Purging Notes:

1st VolumepH _ SC _ Temp.°C __ Time __ Water Level

2nd VolumepH _ SC _ Temp.°C __ Time __ Water Level

3rd VolumepH _ SC _ Temp.°C __ Time __ Water Level

4th VolumepH _ SC _ Temp.°C __ Time __ Water Level

5th VolumepH _ SC _ Temp.°C __ Time __ Water Level

Purging Time from _______ to ________.Purging Method ________Discharge Rate ________________

Sample Notes:

Date Sampled _______________ Time.

pH_ SC_ Temp.°C__ Color

Traffic Reports:

Organic ____________Inorganic ____________Tag No. ____________

30043212-4

! ORIGINAL1 (red) .

1 APPENDIX A

! STANDARD SURVEYING PROCEDURES

PRIMARY AND SECONDARY CONTROL TRAVERSE

ii

300433

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(red)DRAFT

STANDARD SURVEYING PROCEDURESPRIMARY AND SECONDARY CONTROL TRAVERSE

1.0 PURPOSE AND SCOPE

1.1 Standard Surveying Procedure, Primary and Secondary Control Traverse,prescribes the method for running traverse lines for providing ground control,boundary survey, and various other uses for baseline control.

1.2 Standard Surveying Procedure, Primary and Secondary Control Traverse,applies to the horizontal and vertical method of establishing control survey points.

1.3 Standard Surveying Procedure, Primary and Secondary Control Traverse, willassure the accuracy and provide quality control in preventing error.

2.0 SURVEYING PROCEDURE

Surveying procedures shall conform to the following:

2.1 Horizontal Control establishent will be accomplished through a field traversewith permanent control points being set. Control will begin and terminate atknown points of reference, or will be a closed geometric loop. Traverse points willbe referenced to telephone poles, trees, or other permanent land marks.

2.1.1 Angular measurement will be made with a theodolite capable of reading tothe nearest 20 seconds minimum. The angular measurement will be repeatedfour (4) times with an average measurement used. The total angular error forprimary survey traverse is not to exceed 5 seconds times the square root of thenumber of points in the primary traverse. Secondary control survey traverserequires a total angular tolerance error not to exceed 10 times the square root ofthe number of points in the secondary traverse.

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2.1.2 Distance measurements will be with an EDM (Electronic Distance Meter).Measurements between stations will be recorded from both stations.

2.2 Leveling will be by differential leveling methods only (no trigonometricleveling). Bench mark points will be turned on as a part of the level circuit. Onlypreviously adjusted turning points will be used as bench marks.

<

3.0 STANDARD OF ACCURACY

Survey procession will be maintained throughout the project activity by adhering tothe standards of accuracy.

3.1 Horizontal angular measurement will be repeated four (4) times and willrequire an average angle within 15 seconds of the initial measurement used. Thetotal tolerable angular error for Primary survey traverse is 5 seconds 17.Secondary control survey traverse required a total angular tolerance error of10 seconds n (n = number of stations).

Distance measurements will be taken to the nearest 0.001 of a foot. An EDM(Electronic Distance Meter) shall be used with the proper adjustment foratmospheric pressure and temperature. Measurements between stations will berecorded from both stations. Both primary and secondary control survey error isnot to exceed 0.005 feet per 100 feet. Distance measurement taken on a slope willrequire a vertical angle measurement to within the nearest 10 seconds.

3.2 Vertical control will be established on traverse points and on bench marks.The elevation on these points shall be determined through a closed level circuit.Each point will be a turning point of the circuit and tolerance of closure will notexceed 2.0 mm K (K is kilometer) * .621 miles or 3728.88' or 0.0067K.

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DRAFT

4.0 DOCUMENTATION

Field survey notes will be accurately recorded by the survey crew chief in a clearand legible manner.

4.1 The field notebook shall include the following notations.

a. First page of daily activity will be dated and include the names/duties offield crew personnel (first initial and last name).

b. Also on this page, a job title, project number, instrument numbers,weather, and any other pertinent information to that day's activities shallbe so noted.

c. Information that has been used on the survey shall be clearly noted andreferenced; any assumption made shall be so noted; and calculations bythe party chief shall be recorded. All information in the notebook shall becomplete and clear.

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ORIGINAL_ (red) DRAFT

1 STANDARD SURVEYNG PROCEDURESLOCATION OF WELLS

1.0 PURPOSE AND SCOPE

i1.1 Standard Surveying Procedure, Location of Wells, prescribes the method for

| locating monitoring wells that are to be used in the evaluation of the gradient of1 the groundwater system.I» 1.2 Standard Surveying Procedure, Location of Wells, applies to the horizontal

and vertical methods of location of wells.

1.3 Standard Surveying Procedure, Location of Wells, will assure the accuracyj and provide quality control in preventing errors.

f ^ 2.0 SURVEYING PROCEDURE

| Surveying Procedures and practices will follow acceptable methods and techniques' currently being used in industry.

i 2.1 Horizontal Control will be located directly off primary or secondary controlsurvey base lines.

2.1.1 Angular measures will be made with a transit or theodolite capable of• reading to the nearest 60 seconds. The angular measurement will be repeated

twice and will require an average angle within 10 seconds of the first angle.

* 2.1.2 Distance measurement will be with either a steel or plastic tape andmeasured level or with correction made for slope reduction. Stadia is not

I acceptable.

I 2.2 Leveling measurements will be made on well casing as part of a level circuit.Each well casing will be a turning point of the circuit. Turns will be made on the

8-1 3004?7

0(red)

DRAFT

* highest point of the well casing and marked with paint. (Stick-up distances fromground elevation shall be recorded to the nearest hundredth of a foot.)

3.0 STANDARD OF ACCURACY

* Surveying Precision will be maintained throughout the project activity by adheringi to the following standards of accuracy.

3.1 Horizontal angle measurement will be repeated twice and will require anI average angle within 10 seconds of the first angle. Distance measurements will be

taken to the nearest 0.01 of a foot. Distance measurements taken on a slope willi require a vertical angle measurement to within the nearest 10 seconds.

{ 3.2 Vertical Control will be established on well casings through a closed levelcircuit. Each casing will be a turning point of the circuit and tolerance of closurewill not exceed 2.0 mm K. (K is kilometer) - .621 miles or 3278.88' or 0.0006'.

. 4.0 DOCUMENTATION

Field Survey Notes will be accurately recorded by the Survey Party Chief in a clear! and legible manner.

| 4.1 The field notebook shall include the following notations.

| a. First page of daily activity will be dated and include the names/duties of• field crew personnel (first initial and last name).

b. Also on this page, a job title, project number, instrument numbers,weather, and any other pertinent information to that day's activities shallbe so noted.

c. Information that has been used on the survey shall be clearly noted andreferenced; any assumption made shall be so noted; and calculations by

B-2300438

1 OIU8INALI (red)

DRAFT

the party chief shall be recorded. All information in the notebook shall becomplete and clear.

i

i

iB_3 300429

Il ORIGINAL

(red)

APPENDIX C

DRILLING SPECIFICATIONS

300440

fORIGINAL

(red)ATTACHMENT La.BLOSENSKI LANDFILL SITE

BACKGROUND, STATEMENT OF WORK, PERIOD OF PERFORMANCE,AND REPORTING REQUIREMENTS(SOLICITATION NUMBER Z0840804)

TITLE OF PROJECT

Drilling, Construction and Development of Monitoring Wells for the BlosenskiLandfill Site, Chester County, Pennsylvania.

BACKGROUND

The Blosenski Landfill is located in West Cain Township, Chester County,Pennsylvania. The site is located approximately 1,000 feet north of StateRoute 340 (Kings Highway) and 2,000 feet west of the intersection of StateRoute 3*0 and Cambridge Road. The site lies at 40°01'12" north latitude and75°54'33" west longitude on U.S.G.S., Honey Brook 7.5 minute quadrangle.Figure 1 shows the location of the site. The area is about 2 miles east of theLancaster-Chester County border, approximately 50 miles west and slightlynorth of Philadelphia.

The Blosenski Landfill covers an area of approximately 900 feet by 250 feet,or 5.2 acres. The landfill is located in the drainage area of an unnamedintermittent tributary to Indian Spring Run. The site is covered with soil andcontains piles of unspread soil that were excavated from the site. A sitelayout map is presented in Figure 2.

There is a heavily-wooded area located to the north of the site. Oldmachinery and brush piles are located to the south and west on the site in alow-lying area. This area is approximately 15 feet below the elevation of thelandfill. A marshy area exists on the northeastern section of the site. Aravine borders the site to the north and east, and a field is also located to theeast.

The Blosenski Site has been used as a dump for municipal and industrialwastes since the 1940's. Little record is available on the specific nature ofthe wastes disposed. Available information indicates that a variety ofchemicals from industry were disposed on site as well as household wastes.Operation of the disposal site ceased in the 1970's.

The terrain at the site can be described as hilly. Total maximum relief in thegeneral area of the site is better than 300 feet. The land on which the site islocated slopes gently to the northwest, to a small tributary of Indian Spring

Run' 300441

NUS 462A 0384 PRIMUS——!_ COPPOPATX3M

V#!* '.1J\\5

1

ORIGINAL(red)

INTERMITTENT TRIBUTARY OF INDIAN SPRING CREEK

-APPROX. PROPERTY LINE s>- _.

MARSH

HARTZMETZ

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BLOSENSKI LANDFILL, WEST CALM TWR, PANOT TO SCALE

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The northwest corner of Chester County is underlain by a variety ofmetamorphic and igneous rocks. The immediate area of the site is underlainby Chickies Quartzite. This unit is predominantly a hard, resistant quartzitewith inter bedded quartz rich schist. Beds are highly fractured and folded.Site-specific data in depth to bedrock is not available, but it is probablyabout 20 feet. The residual soil developed on the bedrock is a sandy loamwith numerous included quartzite fragments.

Groundwater in the Chickies Quartzite moves along joints and bedding planefractures. In the site area movement of shallow groundwater is probably tothe northwest, following the top of bedrock and topography. Low yields ofnearby bedrock wells suggest that in most cases permeability of bedrock isquite low.

HI. STATEMENT OF WORK

This section is divided into two parts. Subsection III.A. provides generaltechnical specifications for a wide scope of drilling, monitoring well installa-tion, and sampling activities. Only the portions of Subsection III.A. that areapplicable to the activities within the scope of this solicitation are to beimposed on the Subcontractor.

Subsection III.B. provides site specific specifications and details the scope ofthis solicitation. Subsection III.B. will also provide any additionalspecifications that are not contained in the general technical specificationsof Subsection III.A.

In case of a conflict between Subsection III.A. and Subsection III.B., therequirements of Subsection III.B. shall take precedence.

A. General Technical Specifications

This subsection provides general guidance for the conduct ofdrilling, monitoring well installation, and sampling.

A.I Conduct of the Work

The Subcontractor will comply with the specifications and with thefield instructions of the NUS Representative. Data relevant to theprogress of drilling and subsurface conditions will be provided bythe Subcontractor as specified hereinafter. The Subcontractor willallow the NUS Representative the opportunity to obtain his owndata as required, including groundwater level, classification ofsample material, organic vapor analyzer (OVA) testing of selectedsoil samples, driving records of casing and split-barrel samplers, orother data as required. The NUS Representative will have theauthority to temporarily stop work in order to perform these tasks,

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and also to make precise records of the work, such as details ofmonitoring well construction and methods used to clean anddecontaminate equipment, to ensure compliance with thesubcontract agreement. Time necessary to perform any of thesetasks will not be counted as standby time unless it exceeds 30minutes.

The Subcontractor shall supply all labor, material, and necessaryequipment for borehole drilling and/or installing monitoring wells,including cleaning and decontamination. Support vehicles neces-sary to transport men, material, and equipment to the project sitewill also be provided by the Subcontractor.

All information obtained under any subcontract agreement result-ing from this solicitation is proprietary and will only be released toNUS or the Government.

A.2 Mobilization and Demobilization

The Subcontractor will transport to the location all equipment,material, and personnel necessary to undertake the project. TheSubcontractor will bear the cost of setup, shutdown, and trans-porting equipment and materials between successive boring loca-tions. Mobilization will include cleaning all equipment andmaterials prior to their use on site. These include drilling tools,sampling devices monitoring well pipe and screen, and other- equip-ment used to advance borings and construct monitoring wells.Equipment cleaning is described further in Article A.9 of thisSubsection. Demobilization will include cleanup and siterestoration as described in Article A. 17 and A. 18 of thisSubsection.

A.3 Site Access and Preparation

Access to the property and location of the drill sites is theresponsibility of NUS and the Government. NUS will inform theSubcontractor about site access. The Subcontractor will be respon-sible for obtaining drilling and monitoring well permits and shall besolely responsible for compliance with all applicable laws andregulations concerning the location of all underground utilities andthe notification of proper agencies before drilling. NUS willprovide known information regarding utilities to the Subcontractor;however, this information may not be complete, and it is theresponsibility of the Subcontractor to conduct the various requiredutility searches.

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The Subcontractor shall prepare drill sites and access routes tothese locations. This must be done with as little environmentaldisturbance as possible. Land protection requirements may becontained in Subsection ni.B., Site-Specific Specifications. TheSubcontractor will be liable for any damage to property due to hisnegligence in preparing access routes and drill sites.

A.4 Borings

A.4.1 General

Certain activities relevant to the conduct of the boring programmay be determined by the NUS Representative at the site. Theseactivities include the order in which borings are made and thenumber and depths at which samples and hydraulic tests are taken.The NUS Representative may also determine the total depths ofmonitoring wells and depths at which they are completed.

Once tiie he:ing progir.-': has started, the Subcontrano- wi.'1 *keevery effort to achieve a timely completion.

The Subcontractor shall not abandon a boring before reaching thedepth required by the NUS Representative, nor shall he removecasing or other apparatus except with the permission of the NUSRepresentative. Should these requirements not be complied with,no payment will be made for the boring.

Borings must be vertical and straight, unless otherwise specified bythe NUS Representative. Borings that are not vertical or straightto the satisfaction of the NUS Representative may not be approvedfor payment.

The Subcontractor will leave each boring location in a neatcondition. All waste material will be properly removed anddisposed of, as detailed elsewhere in this document. Borings willbe sealed by tremie or other specified methods, unless they arecompleted as monitoring wells.

A.4.2 Number, Location, and Estimated Depth

The number and depths of the drill holes are given in SubsectionIII.B., Site-Specific Specifications. The number, location, anddepth of borings are approximate unless otherwise specified inSubsection III.B. The exact number, location, and depths may bedetermined by the NUS Representative in the field.

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A.4.3 Boring Methods

Borings may be advanced by any of the following methods, asspecified in the Site-Specific Specifications (Subsection III.B.).

A.4.3.1 Hollow-Stem Augering

Soil borings may be advanced by means of hollow-stem augerssubject to the following restrictions.

The lower end of the hollow stem must remain open to the bottomof the bit. If soil enters the stem of the augers, an auger plug mustbe used. Plugs manufactured expressly for this purpose shall berequired. Plugging with drill bits or samplers shall be prohibited.Cleanout of the hollow-stem prior to sampling shall not be accept-able in lieu of the use of a plug.

f- .4.3.2 Driven Casing Method

The boring may be advanced by the driven casing method asdescribed below.

If borings are advanced by means of driven casing, steel casingshall be used. The casing diameter shall be specified by the NUSRepresentative and shall have flush joints, and shall be equippedwith an approved driving shoe at the lower end. Unless otherwisespecified, casing may be driven with any hammer which willproduce the required penetration without damage to the casing.The driller shall carefully measure and clearly mark the totallength on the casing as it is coupled and driven. Driving of casingswill be discontinued when the lower end reaches the top of thespecified sampling depths. At the specified sampling depths, thecasing shall be cleaned out by washing, except as provided below.Washing shall be accomplished by using an acceptable bit, with thecuttings removed by circulating water or other acceptable drillingfluid as provided below. Acceptable drill bits include fishtail orroller types, with the water ports arranged so that there is nojetting action of the drilling fluid below the bit. The use ofbottom-discharge bits and split-barrel samplers shall be prohibitedfor cleanout purposes.

Drilling mud shall be used in lieu of water where necessary for theremoval of cuttings or to maintain an open hole for sampling,unless prohibited by the NUS Representative. The type of drillingmud used shall be subject to the approval of the NUSRepresentative.

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Compressed air may be used in lieu of water for the removal ofcuttings when it is satisfactory to the NUS Representative and thehole is maintained in an open condition for sampling.

The drilling fluid flow rate shall be the minimum required toremove the cuttings and maintain the required level. Changes inthe required flow rates and depths at which such changes occurshall be carefully noted.

In cohesive soils above the groundwater level, casing may be drivenand removed to clean only where the hole will remain openunsupported while the casing is withdrawn with no accumulation ofloose material at the bottom of the hole. Casing advancement bythis method may be directed by the NUS Representative to avoidthe introduction of water into the hole or to better examine thesoil profile.

A.4.3.3 Rotary Drilling

Boring by tri-cone roller bit will be used if it is required by drillingconditions as described above, or if the NUS Representativerequests it.

The Subcontractor will be equipped with tri-cone roller bits ofcorrect size, to continue the boring with the specified diameter,and at least one length of heavy collar pipe. Drilling muds shall beused where required to support the borehole. Drilling with air maybe required depending on drilling conditions, or if specified underSubsection HI.B., Site-Specific Specifications.

A.4.3.4 Pneumatic Drilling

Pneumatic drilling using such devices as a hammer equipped with abutton bit will be used if it is required by drilling conditions, or isspecified in Subsection III.B., Site-Specific Specifications.

A.4.3.5 Cable-Tool Drilling

Cable-tool drilling will be used if it is required by drilling condi-tions or specified in Subsection ITI.B., Site-Specific Specifications.

A.4.3,6 Rock Coring

Rock coring will be used if it is required in Subsection III.B., Site-Specific Specifications. Rock coring will be as specified in ArticleA. 6 of this Subsection.

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(red)A.4.4 Drilling Fluids

A.4.4.1 Water

Only drinking-quality water may be used for advancing of the boreholes as discussed herein. No wells, surface waters, or streamslocated on or adjacent to the site may be used as a source of thiswater. The Subcontractor is responsible for locating and trans-porting, at his expense, a potable source of water. The source issubject to prior approval of the NUS Representative. The interiorof a water tank used to transport, store, or recirculate potablewater must also be decontaminated by the same methods asdescribed in Article A.9 of this Subsection. Also, all pumps andhoses, which are to be used for this purpose, shall bedecontaminated in the same manner. The use of dug sumps (linedor unlined) for the purpose of recirculation of drill water will notbe permitted. The use of portable recirculation tanks is suggested.

A '+.».2 Drilling Mud

Drilling muds are acceptable for borehole stabilization with rotarydrilling methods, as required. Muds shall be bentonite based andshall conform to the Standard API Specification 13-A. Bentoniteshall be mixed at a minimum ratio of 50 to 70 pounds per 100gallons of water. A heavier mix, as determined by the subcontrac-tor, shall be used when mud is being lost through coarse gravelzones or fractures.

Additives, such as liquid or dry polymers, shall not be used withmuds unless approved by the NUS Representative.

A.5 Soil Sampling

A.5.1 Standard Penetration Testing and Sampling

Split-barrel sampling and penetration tests shall be conducted atevery change of strata and within a continuous stratum at intervalsnot exceeding 4 feet between the top of one sample and the top ofthe next sample, starting from the ground surface, unless otherwisespecified in Subsection III.B., Site-Specific Specifications, ordirected by the NUS Representative.

A split-barrel sampler shall be driven into undisturbed soil belowthe bottom of the hole after the hole has been cleaned.to removeall loose and foreign material.

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Unless otherwise specified, split-barrel samplers shall be 2 inchesin outside diameter, and the inside diameter of the barrel and driveshoe shall be 1-3/8 inches. Other dimensions shall be as specifiedin ASTM Designation D 1586-67 (reapproved 1974), StandardMethod for Penetration and Split-Barrel Sampling of Soils, exceptthat a minimum open length of 24 inches shall be provided for thereception of the sample. Sampler drive shoes in good condition andacceptable to the NUS Representative shall be used. The samplershall at all times be provided with a ball check valve in accordancewith ASTM Designation D 1586-67 (reapproved 1974).

The sampler shall be driven by blows of a drop-hammer, fallingfreely down a guide rod or pipe. Unless otherwise specified, thedrop-hammer shall weigh 140 pounds and shall fall freely for adistance of 30 inches. A spinning cathead and manila rope areacceptable for lifting the hammer, but the use of a cable or wireline winch shall be prohibited. The manila rope shall not beexcessively worn or limp, and no more than two turns of the rope.'ccr.d the cathead shall be used. The driller shall use care in

raising and releasing the hammer to see that the required height ofdrop is achieved and the free fall of the hammer is not impeded.Automatic means of raising and dropping the hammer may be used,subject to approval by the NUS Representative. For hole depths upto 50 feet, the sampler shall be coupled to the hammer assemblywith D.C.D.M.A. Size A or larger rods. Size AW or larger rodsshall be used for -hole depths in excess of 50 feet. Except asotherwise provided below, the sampler shall be driven for a totalpenetration of 18 inches. The number of blows required to drivethe sampler each successive increment of 6 inches shall beobserved and recorded. In hard materials requiring more than 50blows per 6 inches of penetration, the penetration for 50 blows intenths of a foot shall be observed and recorded. In the absence ofthe NUS Representative, a penetration resistance of more than 50blows per 6 inches shall be considered as refusal.

Use of a down-hole standard penetration hammer assembly will notbe permitted unless specified in Subsection III.B. or approved bythe NUS Representative.

When reasonably intact samples cannot be otherwise recovered, aspring-type sample retainer shall be used in the sampler. Othertypes of retainers, such as flap-valves, shall be used only whenspring-type retainers are not effective and when authorized ordirected by the NUS Representative. If sample recovery orcondition is unsatisfactory on the first attempt, a second samplingattempt shall be made at this depth, using sample-retaining equip-ment approved by the NUS Representative. If the second attempt

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is unsuccessful, the driller shall advance and clean the hole to thedepth of sampler penetration and make a third attempt. If thethird attempt is unsuccessful, the driller shall continue the boringas directed by the NUS Representative. The Subcontractor's logshall clearly state any deviation from normal sampling proceduresnecessary for sample recovery and any observed or suspecteddisturbance of the sample.

Immediately after completion of driving, the sampler shall bewithdrawn from the hole. The rate of withdrawal shall be slowenough that neither the sample nor the bottom of the hole aresubjected to suction forces. The sampler shall be carefullydisassembled and the soil classified. The most representative andleast disturbed portion of the sample, measuring about 5 inches inlength, shall immediately be placed, without ramming, into anairtight clean glass jar. The glass jars shall be approximately 5inches high and approximately 2 inches in inside diameter, with nomore than 1/4-inch-diameter reduction at the mouth. The jarsshall be provided with metal screw caps with rul ei- gasketsWhere a change in strata occurs within the sample, a sample ofeach material shall be taken and placed in separate jars. The depthof the change shall be recorded. The lid of each jar shall besecurely closed. The jar lid shall be labeled using permanent inkwith the NUS project number, drill hole number, depths at top andbottom of sample, number of blows for each six inches of penetra-tion, and length of recovered sample. The use of stick-on jar labelsmay be required, and if so, the required blank labels will befurnished by the NUS Representative. If the length of samplerecovered is insufficient to provide a sample 5 inches long, themost representative and least disturbed part of the sample shall beused. More than 5 inches of sample may be required from a singlesplit-barrel sample if requested by the NUS Representative. Addi-tional chain-of-custody procedures might be specified by the NUSRepresentative or in Subsection III.B., Site-Specific Specifications.

Soil samples shall not be exposed to the direct rays of the sun andshall be protected from rain, snow, and freezing. The sample jarsshall be packed vertically in substantial cardboard boxes in whichthe jars are separated by cardboard dividers. Boxes which havebeen torn or soaked by water shall be repaired with fiberglass-reinforced strapping tape. Samples shall be packed in boring andsampling sequence in the following manner: facing the long side ofthe box, the driller shall begin in the upper left corner and progressto the right. Boxes shall be clearly labeled on the top, one side,one end, and on the inside of the top with the project, work ordernumber, or NUS project number, the beginning and ending boringand sample numbers, and the box sequence. The label shall be asfollows:

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A.5.2 Thin-Wall Tube Undisturbed Soil Sampling

Undisturbed samples shall be obtained in conjunction with soilboring at locations and depths directed by the NUS Representative.At the designated depths, boring shall be discontinued, and the holecleaned of all loose and foreign material. Care shall be taken tosee that the bottom of the hole is not disturbed.

Sampling shall be performed in accordance with ASTM DesignationD 1587-74 and as directed by the NUS Representative. Unlessotherwise directed, samples shall be obtained using 16-gauge mildsteel tubes 36 inches in total length and 3 inches in outsidediameter. The lower ends of the tubes shall be drawn down asprovided in ASTM Designation D 1587-74 and shall be sharpened toior.-.i a catting edge. Sample tubes s>i*il be attnched to a samplinghead of the specified type by at least four hardened steel screws.

Unless otherwise directed by the NUS Representative, undisturbedsamples may be obtained using an open-type sampling head, provid-ed it is equipped with a steel ball-check-valve with a rubber seat,and an O-ring seal between the head and the sample tube. Ifdirected by the NUS Representative, a piston-type sampler shall beused. Stationary piston or hydraulically operated (Osterberg)samplers are acceptable if approved by the NUS Representativeprior to use. The sampler piston shall be provided with cupleathers or O-rings to achieve an airtight seal with the inside ofthe sample tube, but without excessive friction or binding. If thesubcontract provides for undisturbed sampling, the Subcontractorshall at all times during the work keep on the site available for usea piston sampler, complete with all required fittings andaccessories.

Undisturbed sampling shall be accomplished using the hydraulicfeed mechanism on the drill rig. The hydraulic system shall beequipped with an accurate pressure gauge. Samplers shall beconnected to the feed mechanism using D.C.D.M.A. Size A orlarger drill rods. Except as provided below, the rods shall beconnected to the feed mechanism using the rod-chuck, or standardhex-connections if the drill rig is not equipped with a rod-chuck.Since connection of the drill rods to the hex-drive is not possiblewhen a stationary piston sampler is used, in this case a clampingmechanism acceptable to the NUS Representative shall be used.When a stationary piston sampler is used, the piston rod shall befirmly secured to the drill rig.

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When sampling, the sampler shall be gently lowered to the bottomof the hole. If a piston-type sampler is used, the piston shall beextended flush with the lower end of the tube before lowering toprevent the entry of foreign material. If the sampling depth isbelow the groundwater table, the fluid level in the hole shall bemaintained above the groundwater level, or at the ground surfaceif directed by the NUS Representative. The NUS Representativemay direct the use of drilling fluid other than water, if necessaryin order to keep the hole open and the bottom stable.

When the sampler is resting on the bottom of the hole, it shall bepushed with the hydraulic feed mechanism for a total penetrationof 24 inches in one smooth, continuous stroke, unless refusal isencountered at less penetration. Penetration shall be accomplishedusing the minimum possible hydraulic pressure. The driller shallcarefully regulate the hydraulic feed pressure during penetrationand shall be alert to stop the sampler if an obstruction isencountered. The maximum feed pressure observed during pene-tration sha.U L>c record"o«

If sampler penetration under hydraulic pressure is not possible, theNUS Representative may direct tapping of an open-type samplerwith a 140-pound drop-hammer, but this procedure shall beemployed only under direct monitoring by the NUS Representative.The driller shall use extreme care to avoid damage to the sampletube.

f After penetration, the sampler shall be left in place as directed by» the NUS Representative to allow the sample to expand and adhere

to the inside of the tube. The time required will usually be 3minutes. Then the sampler shall be rotated two turns by the drillerand slowly withdrawn. Hydraulic power shall be used for with-drawal until the sampler is within the larger hole, after whichwithdrawal may be completed using the wire line or cathead rope.If a piston-type sampler is used, the piston shall be locked at thetop of its stroke during withdrawal. The driller shall temporarilycap the lower end of the tube just as it clears the hole.

After withdrawal from the hole, the sample tube shall be carefullydetached from the sampler head. A space 1/2 inch thick shall becut from the sample at the lower end of the tube, and anyobviously foreign and loose material shall be carefully removedfrom the upper end of the tube. Sample recovery shall be

j measured and recorded. If the recovered sample is small ori appears loose in the tube, damp wadded paper shall be gently

packed at the upper end of the sample as necessary to secure it.Hot wax shall be puddled at both ends of the sample and allowed to

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cool and form seals. The wax shall be of a type manufacturedexpressly for this purpose. It shall be hot enough to flow but nothot enough to penetrate the sample. Several applications of waxshall be made to seal any cooling cracks. Both ends of the tubeshall be capped using plastic caps manufactured for this purpose.The caps shall be secured and sealed to the tube using plasticelectrical tape, after which the caps and tape shall be coated withhot wax. The tube shall be cleaned and marked, to indicate theproject, work order number or NUS project number, drill holenumber, sample number, beginning and ending depths, penetrationpressure, and recovery. Example:

Name of SiteNUS Project NumberBoring Designation/Sample DesignationDepth _ to _ Recovery _Pressure to Penetrate in PSI

TJ.5 Snfor-na-Mon shall also l>" -.r- s. - ..d on t) -? :~? • The tube shallalso be marked with arrows throughout its le. gin indicating thedirection of soil movement into the tube. The tube shall be kept inan upright position with these arrows pointing up and shall behandled at all times with extreme care and protected fromfreezing. The tube shall be delivered to the NUS Representative inthe field.

Soil Sampling Refusal

Refusal for the Standard Penetration Test using a split-barrelsampler is defined as 50 blows per 6-inch increment of advance-ment. At that point, the driller may commence with rock coring ordrilling unless otherwise specified.

Refusal for drive-casing is defined as 100 blows per 1-foot incre-ment using a 300-pound hammer, or as defined by the NUSRepresentative. Refusal for augering is defined as the inability ofthe augers to produce penetration after drilling with great effortfor a minimum of 1 minute, and lack of penetration is not causedby faulty drilling equipment and/or worn drilling pits.

Rock Coring

Rock coring shall be accomplished using a drill rig in goodcondition, equipped with a hydraulic feed system for advancing thedrilling tools. The hydraulic feed system shall be equipped with anaccurate means for regulating the feed pressure and with anaccurate pressure gauge. The drill rods shall be of the sameD.C.D.M.A. series as the core barrel and shall not be bent.

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Rock core shall be obtained using a core barrel and bit manufac-tured expressly for rock coring and approved by the NUS Represen-tative. An NX sized, double-tube, M-Series core barrel is requiredunless otherwise specified in Subsection III.B. The core barrel andall accessories shall be kept in good condition. Rock coring shallproduce a core size approximately 2-1/8 inches in diameter, unlessotherwise specified in Subsection HI.B. Reduction in core size shallnot be permitted except as provided below. *

Borings in which rock coring is performed shall be cased to soundrock. The same drive casing or hollow-stem augers used toadvance the boring in soil may be used if large enough to admit thelargest required core barrel, if it is possible to firmly seat suchcasing or augers in sound rock, and if the rock remains sound to thepoint at which coring is terminated.

Application of grease or oil to the surface of drill rods isprohibited.

Wfien it is necessary to core through bculders or through * sti'x orfractured upper rock strata, which augers or drive casing cannotpenetrate and in which the hole will not remain open unsupported,the use of flush-joint rotary casing shall be required. Rotarycasing shall also be required if unsound rock, fissures, mud seams,voids, or other conditions in which the hole will not remain openare encountered below an upper competent stratum. The rotarycasing shall be of the same D.C.D.M.A. series as the core barrel itaccommodates. It shall be equipped with a diamond casing shoe ingood condition.

If a stratum of soil or decomposed rock is encountered after rockcoring has begun, such stratum shall be penetrated and sampled bysoil boring and sampling methods if possible.

Rock coring shall begin with an initial run of 10 feet unlessotherwise authorized by the NUS Representative. Subsequent runsshall be no longer than 10 feet and shall be reduced in length asnecessary to maximize core recovery, unless otherwise authorizedby the NUS Representative. No payment shall be made for corerecovery less than 90 percent, unless approved by the NUSRepresentative.

The driller shall be experienced in operation of the drill rig forrock coring. The methods of operation shall be such as to obtainthe greatest possible core recovery and the least possible coredisturbance. The driller shall be alert to detect blocking orgrinding of core and shall immediately terminate the coring run if

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such occurrences are suspected. The driller shall be alert toobserve and record water losses, artesian pressures, rod jerks,sudden dropping of tools, change of color of wash water, and anyother events which give evidence of fractures, voids, changes instrata, or other subsurface conditions.

The NUS Representative will warn the driller, when, in his opinion,poor core recovery or core disturbance is due to the failure of thedriller to use adequate skill and care, or is due to faulty equipment.Failure of the driller to correct such defective equipment orprocedures after such warning shall constitute justification forredrilling of such defective borings by the Subcontractor with noadditional payment.

Immediately upon recovery of the core barrel from the hole, therock core shall be carefully removed from the barrel and classifiedand measured for percentage of recovery. When directed by theNUS Representative because of soft, fractured, or broken rock, the>..o-e ba/rel shall be ciisr.icxr.xksd ir. a horizontal position, and thecore gently pushed out into a horizontal trough. Rock cores shallbe carefully placed in the sequence of recovery in well-constructedwooden boxes, provided by the Subcontractor. Wood partitionsshall be placed at the ends of each core run and shall be markedwith the depth from the ground surface. The required order ofplacing rock core in the core boxes is described as follows: Facingthe long side of the core box, with the lid away from him, thedriller shall begin core placement at the upper left corner andprogress to the right, with the core depth increasing in thisdirection. Subsequent rows of core shall also begin at the left andprogress to the right.

Core boxes shall be wooden and soundly constructed. Lids shall behinged and the hinges attached with screws. The boxes shall beapproximately 4 feet long and wide enough to accommodate fourrows of core, separated by wood partitions. The core fromindividual runs shall be separated by wood partitions as providedabove, and the partition marking the bottom of the last run of thebox shall be nailed or otherwise firmly secured. Rock core fromtwo different borings shall not be placed in the same box, and corefrom a single run shall not be divided between two boxes. Whenboxes are filled and classification is complete, the lids shall befastened down with two screws. The following information shall beneatly and permanently marked on the inside and outside of eachlid, on one end, and on one side of the box.

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o Station and project (lid only)

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o Boring number and core run

o Beginning and ending depths of core in the box (lid and sideonly)

o Box number of total number of boxes

The boring logs shall indicate the following minimum informationfor each coring run: beginning and ending depths, length andpercent recovery, rock classification, and depths of changes inclassification.

Coring shall be terminated at the depth or distance into sound rockspecified or directed by the NUS Representative.

The Subcontractor shall provide suitable dry storage for all rockcores until the completion of the work.

A.7 Groundwater Observations and Testing

A.7.1 Groundwater Observations

Observations shall be made of groundwater levels in all borings.Any and all observations of unusual water conditions and depths atwhich water is encountered, of a gain or loss of water in boringoperations, or of water under excess pressure shall be recordedcompletely in the boring logs. When water under excess pressure isobserved, the drilling operation shall be stopped. The casing shallbe plugged with a cap with a pressure gauge attached, and theborehole shall be allowed to reach equilibrium and the pressureshall be recorded. Groundwater levels shall be measured beforeand after withdrawing casing, where used, and 24 hours later. Ifmore than one day is required to complete a boring, then waterreadings shall be taken each morning prior to the commencementof drilling operations. Whenever required by the NUSRepresentative, drill holes shall be bailed for observations ofgroundwater conditions.

A.7.2 Pressure Testing

Pressure testing consists of forcing water under pressure intosubsurface rock formations through pre-drilled test holes for thepurpose of determining rock hydraulic conductivity. The subcon-

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tractor shall perform all the work and furnish all equipment andsupplies required to complete these operations.

Pressure testing equipment to be furnished by the Subcontractorshall include the following: water pumps with minimum capacitiesof 50 gpm (discharge pressure of 150 psi), double expanding packersto fit the size hole drilled with rubber expansion elements 6 inchesin length, set 5 feet apart; water pipes so arranged that water maybe admitted either below the bottom packer or between the twopackers, and connected to the pressure pump through two swingcheck valves; water meter; and pressure gauge. Supplies shallinclude all accessory valves, gauges, stopclocks, plugs, two sets ofexpanders, water for testing, pressure hose, and tools necessary formaintaining uninterrupted tests for each boring to be tested. Nomore than 30 days prior to the commencement of drilling, theSubcontractor shall have all water meters calibrated by alaboratory acceptable to the NUS Representative and furnish acopy of all calibration data to the NUS Representative.

Pressure tests shall be directed by the NUS Representative. Ingeneral, depth increments of 5 feet shall be tested, beginning atthe bottom of the hole and progressing upward. Test pressures,flow rates, and time increments shall be as directed by the NUSRepresentative. All data shall be recorded by the NUSRepresentative.

In assembly of the pressure test apparatus and installation in thedrill hole, the Subcontractor shall test all connections for watertightness and headloss flow characteristics before it is placed inthe borehole. The Subcontractor shall use care to prevent damageto the packers and seal them against the sides of the drill hole.

A.7.3 Open-End Permeability Testing

Open-end permeability testing shall consist of either displacing thewater in the borehole with a "slug" or pumping water into aborehole with a potable free water source, and either observing theflow rate required to maintain a constant head or observing the fallof water in the boring with no inflow over a given time interval. Ifso specified herein, the NUS Representative may require theperformance of open-end permeability tests at any time duringdrilling and will record all test data. If open-end permeabilitytests are required, the Subcontractor shall furnish a water pump,water meter, and necessary accessories meeting the requirementsspecified for these items and shall perform the work in accordancewith these Specifications and as directed by the NUSRepresentative. The water meter must be certified as accurate to0.10 gallons per minute.

3? NUS 4628 0384 300458• I CORPORATIONA HalliDufton Company

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A. 3.1

A.8.2

A.8.3

ORIOIIIH&•£!•

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Monitoring Well Installation

General

Groundwater monitoring wells shall be installed by the subcontrac-tor in the completed boreholes at the approximate locations anddepths indicated in Subsection III.B., Site-Specific Specifications.The exact depth of these wells is as yet undetermined and will bespecified by the NUS Representative at the time of installation.

Equipment and Materials

The Subcontractor shall provide all materials for the constructionof monitoring wells. The type and size of wellscreen and well pipeto be installed will be defined in Subsection III.B., Site-SpecificSpecifications. If steel, galvanized steel, or stainless steel pipe isto be used, it shall be clean of oil and dirt. Joints shall be threadedflush-joint type; no grease, oil, or other petroleum-based material•«rl'l be app'i^l to the thread-

If PVC pipe is specified, it will also be threaded flush-type joints.Solvents or glue shall not be used as joining compounds.

Manufactured wellscreens shall be used. Wellscreens shall not beshop-produced by the Subcontractor unless approved by the NUSRepresentative. Wellscreen slots shall be determined by the NUSRepresentative unless otherwise specified in Subsection III.B., Site-Specific Specifications.

The Subcontractor shall provide all materials for backfilling com-pleted boreholes, including pumps and material for tremiedcement-bentonite grout, material for screen packs for backfillingaround wellscreens, bentonite, and materials for the constructionof vented lockable protective casings. Description of the wellbackfill materials is contained in Subsection III.B., Site-SpecificSpecifications.

Installation Procedures

One monitoring well shall be installed within each borehole unlessotherwise specified in Subsection III.B., Site-SpecificSpecifications. Before installing the well, the depth to the bottomof the borehole shall be measured by the NUS Representative. Ifnecessary, the borehole shall be backfilled with gravel, sand, grout,or bentonite as approved by the NUS Representative to a depth atwhich the monitoring well is to be installed.

NUS 4628 0384 P^NUS ,300459J CORPORATION

A Hahbunon Company

AORIGINAL

PAGE 20 of 47

The monitoring well pipes shall be stored on a suitable work tableor similar approved work area provided by the Subcontractor sothat the wellscreen and well pipe do not come into contact withthe ground, drilling equipment, or other items which may consti-tute a contaminant source.

The monitoring well sections shall be lowered into the borehole andheld in place so another section can be threaded into place. Thelength of pipe sticking above ground shall be no less than 24 inchesand shall be measured before the excess pipe is cut off. The top ofthe well pipe shall be fitted with a vented cap.

Once the entire well pipe is installed, and prior to backfilling, thewell depth will be measured to ensure that the well pipe is unob-structed. Prior to backfilling, the well pipe will be placed insuspension by suspending the pipe from the top so that the well isseveral inches off the bottom of the borehole. The first backfillwill then be added. Subsequent backfilling shall only occur whenthe we1! .ipe 1* holr* 'n fusion tc maintain straightne??.

Kfi

Annular space around the wellscreen shall be filled with a suitablescreen pack as specified in Subsection IH.B., Site-Specific Specifi-cations. The screen pack shall be placed in increments to aminimum 2 feet above the wellscreen, unless otherwise specified inSubsection III.B. A 2-foot-thick layer of bentonite pellets shallthen be placed in increments above the screen pack, unlessotherwise specified.

The bentonite pellets shall be of commercial grade and approved bythe NUS Representative.

As backfilling proceeds, the Subcontractor will continually measurethe depth of the backfill by using a measuring tape fitted with aweighted tamper at the base. This device will serve to sound andtamp the backfill.

The remainder of the annular space around the well pipe shall bebackfilled with tremied cement-bentonite grout. Details of grout-ing procedures are presented in Subsection III.A.8.4.

After grouting, the Subcontractor shall wait until the following daybefore installing locking steel caps for well protection. These capsshall be a black steel casing painted with a rust-preventive paint.Casing 5 feet in length shall be placed around the well pipe and setinto a 2 foot depth of concrete grout. The top of the protectivecasing shall extend above the well pipe to allow for ease of access.A hardened steel hasp shall be welded on one side of each steel

NUS 462B 0384 3004801 CORPORATION


Z0840804ATTACHMENTPAGE 21 of 47

A.8.4

A.S.4.1

A.8.4.2

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casing, prior to installation,- so that the cap may be secured with ahardened steel lock. All hardware including the hardened steellocks shall be provided by the Subcontractor. All security casingand caps must be free of all oils or solvents. Concrete grout shallbe a mixture of portland cement, sand, coarse aggregate, andclean, drinkable-quality water in the ratio of at least 5 bags ofcement, per 1 cubic yard of concrete, and not more than 7 gallonsof clean water per 1 bag of cement. The well casing and cap shallbe vented with four small-diameter holes.

The security casing shall be surrounded at the ground surface by aconical concrete pad. The upper surface of this concrete pad shallbe just below the four vent holes.

The concrete collar shall be constructed at least 6 inches in alldirections from the protective casing and shall slope gently awayto drain water away from the well. It is preferable that theSubcontractor use a circular metallic or plastic form to place theconcrete 'n and around the secjrity c--\f,'-\

Each site shall have all of the wells master-keyed, and the numberof the well, as indicated on the site location map or as designatedby NUS, shall be stamped or painted onto the top of the cap and onthe protective casing. The site number, as designated by NUS,shall be stamped on master keys. The Subcontractor shall submitall master keys to the NUS Representative at the completion ofthe site work.

Well Grouting

General

The annular space around the well pipe or steel casing (ifpermanent) shall be backfilled with cement-bentonite grout whichwill be pressure-injected into place. If conditions requireemplacement of the grout by tremie, a separate pipe shall be usedfor all grout tremies, unless otherwise approved by the NUSRepresentative.

Grout Mix and Equipment

The characteristics/constituents of grout mix shall be as follows:

o Portland cement (Type 1)

o Water: cement ratio (by weight) = 0.4:1 to 0.6:1

NUS 462B 0384 300461' CORPORATION

A HaNibunon Company

PORIGINAL

l•i

Z0840804ATTACHMENT La.PAGE 22 of 47 (red)

o Bentonite (by weight of cement) = 5 to 15 percent(prehydrated).

Grout additives will be specified as required by the NUSRepresentative, or contained in Subsection III.B., Site-SpecificSpecifications.

If grouting is by tremie, a pipe 01 suitable length and rigidity shallbe used. The end of the tremie pipe shall have two 0.5-inch-wideby 2-inch-long slots along the side to allow lateral flow of tremiedmaterial and to minimize jetting. The Subcontractor shalldetermine the diameter of the tremie pipe and provide fittings toconnect the tremie pipe to the pump.

A.8.4.3 Grouting Procedure

The following procedure shall be used to place cement-bentonitegrout:

o Mix a calculated volume ol grout to fill u,,_ required lengthof borehole.

o Connect the tremie pipe to the grout pump, place the tremiepipe down the borehole near the top of the bentonite, and

* slowly pump the grout into the borehole as the casing orauger is pulled back (if used).

o Slowly pump the grout into the borehole to about 2 feetbelow the ground surface.

o The following day, a lockable, vented, protective casing shallbe installed at ground surface at each monitoring well

location, as described in Article A.8.3 of this Subsection.

The NUS Representative shall monitor and approve all aspects ofborehole grouting.

If, at any time from the installation of the monitoring wells to thecompletion of the work, the monitoring well installations and/orprotection devices are damaged as a result of an action by theSubcontractor, the Subcontractor shall repair the damage at noadditional cost.

NUS462S°384 CORPORATION 300462«J V O ** *•/ **A HaUibunon Company

PAGE 23 °< '7ORIGINAL

A.8.5 Development of Monitoring Wells

A.8.5.1 Bailing Development

The initial development or the purging of drilling fluid from themonitor wells shall be performed by the Subcontractor as soon aspractical after well installation, but no sooner than 48 hours aftergrouting is completed. The well shall be'pumped or bailed aminimum of 3 times the volume of water within the well casing, oruntil dry, until the bailed water is visually clean and meets anyother specification specified in Subsection III.B., Site-SpecificSpecifications.

A. 8.5.2 Surge Development

After the well has been bailed, the water will be allowed to returnto a stable level. Surge development will be accomplished usingeither solid surge plungers or valved surge plungers. Immediately*f :»•*»• c.:rgjng, the well will be bailed as describee! ;n ArtJo!? A.8.5 'of tnis Subsection. The last bailer of water will be emptied into dglass jar and the waste examined for clarity. The surging processwill be repeated until the bailed water attains visual clarityapproved by the NUS Representative.

A.8.5.3 Use of Dispersants

Use of dispersants to aid in well development will be prohibitedunless otherwise specified in Subsection III.B. or approved by theNUS Representative.

A.9 Equipment Cleaning and Decontamination

Equipment cleaning shall be required, prior to site mobilization, toremove all non-hazardous and uncontaminated materials fromdrilling equipment, well pipe and screen. Equipment decontamina-tion, on site and prior to demobilization, shall be required toremove all hazardous and contaminated materials from drillingequipment, samplers, testing devices and other equipment asdesigned by the NUS Representative. Spent materials generatedfrom decontamination shall be collected by the Subcontractor.

The Subcontractor shall steam-clean, prior to their use on the site,drill rig(s), all drilling and soil sampling equipment, pumps, hoses,drill water recirculation tubs, bailers, grout pipes and pumps, andother equipment used to advance borings, develop monitoring wells,and grout boreholes. All monitoring well materials shall be steam-cleaned prior to their use on site. No degreasers or solvents shallbe used in steam cleaning.

1NUS 482B 0384 | >-< m m _ _

__J CORPORATION v)QQ4S3ClA Hanitxxton Company

•II

Z0840S04ATTACHMENT La.PAGE 24 of 47

Equipment which will be used at more than one explorationlocation or at intervals in one borehole as required by the NUSRepresentative shall be thoroughly cleaned and decontaminated bythe Subcontractor between each borehole or before advancing aparticular borehole further as required by the NUS Representativeor specified in Subsection III.B., Site-Specific Specifications. Thisequipment includes drill rig(s) table area, drill bits and rods (asrequired), casing, augers, drill fluid recirculation tubs includingwater pumps and hoses, water level measurement devices, soilsampling devices, grout pipes, bailers, and surge blocks. Noequipment shall leave the site at any time without first beingcleaned and decontaminated.

The following general procedure shall be employed for cleaningbefore use on the site and for decontamination after each boring isfinished and before demobilization.

a. Particulate contamination, larp.e particles of dirt, mud, vege-tation, etc., shall i* uic",! < • ' ? washed off with lo-pressure, clean water.

b. Equipment which cannot be cleaned with water and that hasbeen in contact with potentially toxic materials shall bewiped three times with absorbent cloth.

c. Wash other equipment with a steam cleaner using commercialdetergent solution.

d. Rinse three (3) times with clean water.

e. Rinse with clean water any material/equipment that willenter the borehole.

f. Rinse with low-pressure, clean water.

g. Storage tanks, tubs, and hoses shall be cleaned by flushingwith 3 volumes of clean water.

Additional equipment cleaning and decontamination may be speci-fied in Subsection III.B., Site-Specific Specifications.

The Subcontractor shall provide all equipment and materialsneeded for proper cleaning and decontamination and shall prepare

! decontamination areas. The decontamination areas shall be in aI location approved by the NUS Representative. Further require-

ments for the decontamination areas are included in Article A. 14.7of this Subsection and Subsection III.B. Site-Specific Specifications.

3004841 ——— I CORPORATION

A Hattbunon Company


A. 10

A.11

A.12

A.12.1

A. 12.2

NUS 4628 0384

U K t K I N A LLa. (, .",'.?}

All wash water and waste products generated during onsite decon-tamination operations shall be handled as specified in Article A. 15of this Subsection and Subsection III.B., Site-SpecificSpecifications.

Abandoned Boreholes

Should the casing be removed from a borehole, or should the holebe abandoned, without the permission of the NUS Representative,or should a boring be started and for any reason not carried to thedepth required by the NUS Representative, or should the subcon-tractor fail to keep complete records of materials encountered orfurnish the NUS Representative with the required samples, thenthe Subcontractor shall make an additional boring at a locationselected by the NUS Representative and no payment shall be madefor either the abandoned hole or any samples obtained therein. Allabandoned boreholes shall be fully grouted with tremied cement-bentonite grout or as specified >n Subsection III.B., Site-Specific'Vaciiical io. iJ: or as requested LV - ri'JS .vepr.ssntative.

Standby Time

In the event the Subcontractor is delayed more than 30 minutesduring any of the various work items of this Specification forreasons other than his own doing, standby payment shall be madewhen, in the opinion of the NUS Representative, the Subcontractoris unable to perform productive work. No payment for standbytime shall be made for mechanical breakdowns of drilling orassociated equipment or lost time due to the lack of necessarysupplies or materials. No payment shall be made for lost time dueto inclement weather, utility clearances, or pedestrian or trafficcontrol.

Records and Documentation

General

The Subcontractor will provide clean, legible copies of the follow-ing: boring logs, monitoring well description, and daily drillingreport. Other documentation requirements may be specifiedelsewhere.

Boring Log

The purpose of this log is to provide NUS with a record of thedimensions of the hole, drilling methods used, any drilling problemsencountered, and the general character of the subsurface materialpenetrated. The log will include the following:

. ' CORPORATION O U U I5 O «3JA Halliburton Company


a. Name and address of the Subcontractor.

b. Dates and times of starting, stopping, and completion of theboring.

c. Name of the driller.*

d. Diameter and depth of boring and record of casing.

e. Make and type of equipment used, including methods ofadvancing the hole and obtaining samples.

f. Data for each split-barrel sample required, including blowcounts per 6-inch penetration, and length of soil recovered inthe split-barrel sampler.

g. Data for each undisturbed sample (Shelby Tube).

h. • J.ua o-» rock coring as desci . j c. -.whore.

i. Descriptions of all soil and rock strata encountered with thedriller's best estimate of the depths at which changes inmaterial occur.

}. Descriptions of water levels and drilling fluid behavior.

k. Observations of any unusual drill tool behavior.

1. Dates, times, and depths of groundwater observations.

m. All information where specified in the solicitation.

A. 12.3 Monitoring Wells

The Subcontractor will keep a record of the construction design,materials, and amounts of materials used in each monitoring well.This will include diameter of casing, depths and lengths of allwellscreens, type of screen pack, and location of screen packs.Other data may be requested by the NUS Representative. Thisrecord will be due at the completion of the project.

A. 12.4 Daily Drilling Record

The Subcontractor will keep a record of drilling for each shift andsubmit this daily to the NUS Representative. This report willinclude the following:

NUS 4623 0384

l CORPORATIONA HaHiburton Company

300466

I

l H

3

f

Z0840804ATTACHMENT

| PAGE 27 of 47

A.13

A.13.1

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A.13.3

OfttftiHM.a. Name of driller.

b. Identification of borehole.

c. Drilling equipment and method used that day.

d. Equipment mobilized or demobilized that day.4

e. Record of footage at start and end of shift.

f . Record of casing placed or removed.

g. Penetration rate of sample tool or driven casing, change ofbit, and total footage of diamond bit.

h. Record of materials used such as bentonite, cement, andother cost items.

' Pecor-j ' Tie required for rnpirt :-!?ncf - 'i repairs in excessof 30 minutes per day.

j. Record stand-by time as defined elsewhere.

Submission of Reports and Samples

Boring and Well Logs

Upon completion of each boring, a legible copy of the field logshall be given to the NUS Representative at the site. The log mustbe signed by the driller who performed the drilling.

Soil Samples

All samples obtained during the performance of the work shall begiven to the NUS Representative at the site at the completion ofthe work, or as specified by the NUS Representative, or asspecified in Subsection III.B., Site-Specific Specifications.

Rock Cores

All rock cores obtained during the performance of the work shallbe given to the NUS Representative on the site at the completionof the work, or as specified by the NUS Representative, or asspecified in Subsection III.B., Site-Specific Specifications.

NUS 4628 0384 . i~U

LZH CORPORA-PON OH O AA HaHiburwn Company "^ ^

IP

Z0840804ATTACHMENT La.PAGE 28 of 47 ORIGINAL

I

A.13.4 Daily Drilling Reports

Daily drilling reports shall be legible and given to the NUSRepresentative at the end of each day of drilling. These reportsmust be signed by the Subcontractor's representative.

A.14 Health and Safety

NUS has established a comprehensive health and safety programfor all project site activity. A Health and Safety Plan is developedfor each site and a Safety and Health Officer (SHO) is designated.This may be the same NUS Representative or another individual.The SHO has total control of site health .and safety matters. Thefollowing paragraphs provide generic information. Site-specificdetails are contained in the Health and Safety Plan.

A.14.1 Compliance with the NUS Health and Safety Plan and OtherRegulations

Prior to the commencement of any neid activities, the subcontrac-tor will be advised of the NUS Health and Safety Plan for thesubject project. The Subcontractor shall strictly comply with allarticles of this Health and Safety Plan. Failure to comply with thisplan by the Subcontractor or the Subcontractor's employees shallbe cause for stopping the work, at the expense of theSubcontractor.

During the performance of work under this contract, the subcon-tractor shall, as a minimum, satisfy all Federal, state, and localstatutes, regulations, ordinances, etc., regarding health and safety.Beyond this minimum requirement, the Subcontractor shall complywith all health and safety plans particular to the site proposed forinvestigation.

A. 14.2 Health and Safety Training of Subcontractor Personnel

The Subcontractor personnel, who may be involved with workrequiring respiratory protection, will attend a one-time trainingsession conducted by NUS. Only personnel, who will be working atthe subject site will attend the training session. NUS will conductthe training session at no charge to the Subcontractor. The sessionwill be conducted at the site prior to commencement of work.

A.14.3 Accidents or Injuries

Any accidents or injuries, occurring during the duration of thiscontract, involving any Subcontractor's employees employed forwork on this project shall immediately be reported to the NUS

NUS 4628 0384 300468i___• CORPORATION i-rw V ~x\s\rE3A Halliburton Company


IIiiI

*

A.14.4 Physical Condition of Subcontractor Personnel

The Subcontractor is informed that the wearing of personal protec-tive clothing and respiratory equipment places far more physicalstress on an individual than would be experienced under normalworking conditions. Therefore, the Subcontractor's field personnelshall be individuals in good physical condition and without priorserious health problems that may be 'aggravated by theperformance of this work. NUS reserves the right, at any time, torequest replacement of any individual employed or retained by theSubcontractor who, in NUS1 opinion, cannot function under thesestressful working conditions. No additional compensation shall bedue the Subcontractor for delays or expenses incurred by theSubcontractor for additional personnel training as a result of suchrequest.

A. 14.5 Health and Safety Protection

DJ--:- '.o the potentially v:ai"-OMJ. n.vjrt .-.r <-he n'-i.ulals .v'-i 'may be or may have been stored or disposed oi on site, aiiSubcontractor personnel working on this project may at times berequired to wear personnel protective clothing and/or respiratoryprotective equipment while drilling or working on and off site. Thetype of protective clothing needed and the need and type ofrespiratory protective equipment will be determined by NUS.

If, at any time during the duration of this subcontract, Level Brespiratory protective equipment, supplied air, is required, it willbe provided by NUS. This equipment is to be promptly returned, ina condition reasonably similar as when it was provided, to NUSupon completion of the work. Respiratory protective equipmentcannot and will not be used by individuals with long sideburns orbeards, or by individuals who wear standard eyeglasses or contactlenses in the performance of their daily work routine. Specialeyeglasses that can be worn with the respiratory equipment areavailable and can be purchased by the Subcontractor at hisexpense. Medical evaluation and certification are required to wearrespiratory protection. Other protective equipment which may berequired and shall be furnished by the Subcontractor includechemically resistant coveralls, rubber overboots, steel-toed safetyshoes, hard hats, safety goggles, and inner and outer chemicallyprotective gloves.

No smoking, eating, drinking, or use .of drugs will be permittedwhile working on the site, except in designated areas. Designatedareas for smoking, eating, and drinking will be identified by theNUS Representative.

NUS 4628 0384 _-?-;Mi I CSTH* **1 *" '""no M r» r>I——_] CORPORATION ^ {_} (_,'• q. {} JjQA HalHOurton Company


A.14.6

A. 14.6.1

A.14.6.2

ORIGINAl—— - ————————————— (red) ——Personnel Safety Equipment

NUS will furnish and maintain the monitoring devices and Level B(supplied air) respiratory protection units if they are needed.

The Subcontractor will provide protective clothing, air purifyingrespirators if they are needed, and disposable items which includeclothes, boots, respirator cartridges, and gloves as listed inSubsection III.B.

The typical clothing and equipment required at various protectivelevels are described below. Site-specific conditions may requiremodifications.

Subcontractors are advised to consult the site-specific require-ments for modifications made to these levels.

Level A

Level A protection is worn when the highest level of respiratory,skin, eye, and mucous membrane protection is needed.

Personal protective equipment for Level A typically includes:

a. Positive-pressure (pressure demand), self-contained breathingapparatus (SCBA) (MSHA/NIOSH approved)

b. Fully encapsulating chemical-resistant suitc. Chemical-resistant inner and outer glovesd. Chemical-resistant inner glovese. Chemical-resistant boots with steel toe and shank (depending

on suit boot construction, worn over or under suit boot)f . Radiation detector (as required)g. Hard hat (under suit) (optional)h. Coveralls (under suits)i. Two-way radio communications (intrinsically safe)

Level B

Level B protection is used when the highest level of respiratoryprotection is needed, but a lesser level of skin and eye protection.Level B protection is the minimum level recommended for initialsite entries until hazards have been further identified and definedby monitoring, sampling, and other reliable methods of analysis,and personnel equipment corresponding with those findings used.

Personal protective equipment for Level B typically includes thefollowing:

H^NUS 300470'__i_l CORPORATION ^ X t V

A HaHiburton Company

I

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Z0840S04ATTACHMENT La.PAGE 31 of 47

a.

b.

c.d.e.f.g-h.

A. 14.6.3 Level

Level

GRlilH&l(red)

Positive-pressure (pressure demand), self-contained breathingapparatus (SCBA) (MSHA/NIOSH approved)Chemical-resistant clothing (overalls and long-sleeved jacket,coveralls, hooded, two-piece chemical splash suit, ordisposable chemical-resistant coveralls)Coveralls (under splash suit) (optional)Chemical-resistant inner and outer glovesChemical-resistant outer boots with steel toe and shankRadiation detector (as required)Two-way radio communications (intrinsically safe) (optional)Hard hat (as required).

C

C protection is selected when the type of airborne substanceis known, concentration measured, criteria for using air-purifyingrespirators met, and skin and eye exposure unlikely. Periodic

f monitoring of the air must be performed.

»

i

,!*

F

Personal protective equipment for Level C typically includes thefollowing:

a.b.

c.d.e.f.

- g-h.i.

A. 14.6.4 Level

Level

Full-face, air-purifying respirator (MSHA/NIOSH approved)Chemical-resistant clothing (one-piece coverall, hooded two-piece chemical splash suit, chemical-resistant hood andapron, disposable chemical-resistant coveralls)Chemical-resistant inner and outer glovesRadiation detector (as required)Chemical-resistant boots with steel toe and shankCloth coveralls (inside chemical protective clothing)(optional)Two-way radio communications (intrinsically safe) (optional)Hard hat (as required)Escape mask (optional).

D

D protection is primarily a work uniform. It should not beworn on any site where respiratory or skin hazards exist.

Personal protective equipment for Level D typically includes thefollowing:

a.b.c.

Cloth coveralls and protective glovesBoots or shoes with steel toe and shankHard hat (as required)

NUS 4628 0384 , _ _ ^

300471A Hatkbtxton Company


A.14.7

A. 14.7.1

ft n- 1 e i M *lliufci u.:^ (red)

d. Safety eye wear (optional)e. Radiation detector (as required).

Site Control and Decontamination Procedures

The following sections describe typical procedures. Site-specificprocedures are described in the site Health and Safety Manual.

Site Control

Site control measures are implemented at all uncontrolled hazar-dous waste sites or controlled substances work areas in order tominimize the risk of transfer of contaminated materials to uncon-taminated areas. Control measures may be required for the knownwaste disposal area and at individual boreholes where controlledsubstances are brought to the surface by drilling activities.

Work zones are be established to differentiate contaminated areasfro-1.* uncontarr 'r.ated areas. Three /v»ne designations are norma'1'"detc-'mincd a;ic. uitablbned by the NUS iiep. esentativs. inese *..:c:

a. Zone I - Contaminated (HOT) Areab. Zone II - Decontamination (TRANSITION) Areac. Zone III - Noncontaminated (CLEAN) Area

Zone I is the contaminated area in which hazardous materials areknown to exist. No individual is permitted into this area unlesscomplying with the prescribed level of protection.

Zone II is that area through which all individuals must pass to reachZone I. It is an area that is not contaminated but may become sodue to the exiting of personnel following activity in Zone I. Allpersonnel and equipment decontamination operations are locatedwithin this zone. Contaminated clothing and materials removedfrom Zone I that cannot adequately be decontaminated shall be leftwithin this zone in appropriately labeled 55-gallon steel drums.The Decontamination Line as described below shall be establishedwithin Zone II.

Zone III is the designated clean area surrounding the site that mustnot be contaminated due to site investigation or remedial actions.Entry from Zone III into Zone II shall only be made through a checkpoint on the Zone III/II boundary. No individual shall enter Zone IIwithout complying with the appropriate level of protection requir-ed for decontamination purposes.

FI NUS 462B 0384 '

A Haldounsn CompanyCORPORATION Q f\ r\ M «f f)

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t


A.14.7.2

A. 14. 7.3

A.14.8

La. «1 w\

General Decontamination

In order to reduce the risk of transfer of contaminants from Zone Ito Zone HI, decontamination of personnel and equipment is requiredto take place within Zone II. The decontamination procedures shallbe established for each site based on the degree of hazardassociated with the site and the amount of contact with hazardousmaterials resulting from site work. Final decontamination proce-dures shall be reviewed and approved by the NUS Representativeprior to implementation. NUS now expects that all safety equip-ment (i.e., overboots, gloves, TYVEK suits) except for respiratorswill be disposed of at the end of each work day. Decontaminationtechniques for respirators will be discussed and demonstrated bythe NUS Representative during the training. Such decontaminationtechniques will take no longer than several minutes at the end ofeach work day.

Decontamination of personnel and equipment is accomplished bywashing and the collection of washings and used equipment fortreatment prior to deposition in sealed drums.

Decontamination procedures are designed to remove contaminateddebris or liquids from nondisposable protective equipment. Suffici-ent water and solutions will be available at each site to wash thematerials from such equipment. The final rinse for all proceduresis with clean water. Equipment cleaning and decontamination isdescribed in Article A.9 of this Subsection.

Personnel Decontamination

The Subcontractor shall be responsible for all personnel decontami-nation procedures and for establishing a central decontaminationstation and additional temporary decontamination stations at eachboring location. The Subcontractor will supply all the necessarydetergents, solutions, and equipment necessary for the decontamin-ation procedures. The Subcontractor shall supply, in sufficientquantities, drinking-quality water for these procedures. All per-sonnel entering the site, and prior to leaving the site , are requiredto pass through decontamination as determined necessary by theNUS Representative. Personnel decontamination procedures aredescribed in Subsection III.B., Site-Specific Specification.

Air Monitoring Equipment

NUS Corporation will provide and maintain the air monitoringequipment used to establish the proper respiratory protection. TheSubcontractor may use his own equipment if he so desires.

1

NUS46280384

• ' I CORPORATIONA HailiOurton Company

300473

FZ0840804ATTACHMENT La. ' e .xPAGE 34 of 47 (J'3Ci)

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A.15 Contaminated Material Collection and Handling

Any drilling spoils/cuttings, spent decontamination water, or solu-tions considered by the NUS Representative to be a hazardouswaste cannot and will not be discharged to the environment, unlessapproved by the U.S. Environmental Protection Agency (EPA),local regulatory agencies and NUS. The drilling spoils/cuttings willbe monitored with an organic vapor meter by an NUSrepresentative to determine if they must be containerized. At aminimum, all spent decontamination water shall be collected andcontainerized.

It shall be the responsibility of the Subcontractor to collect,handle, and containerize, if necessary, all those materialsgenerated in connection with the work under these specificationsand deemed potentially hazardous by the NUS Representative.Those waste materials deemed by the NUS Representative not tobe suspected/known hazardous wastes need not be collected andcontainerized. These nonhazardous wastes may, with the EPA andlocal regulatory agencies' permission, be disposed of on the site bythe Subcontractor. Potentially hazardous wastes shall be con-tainerized and clearly and permanently labeled as per instructionsfrom the NUS Representative.

Unless otherwise specified in Subsection III.B., Site-Specific Speci-fications, the Subcontractor shall provide, in sufficient quantities,55-gallon steel drums or approved containers for this wastematerial. These drums shall meet the U.S. Department of Trans-portation (DOT) requirements for hazardous substances. Beforecompletion of work, the Subcontractor shall move all drums to acentral location on the site. This location shall be designated bythe NUS Representative.

Offsite waste removal, hauling, and disposal is not within the scopeof this subcontract and will not be the responsibility of theSubcontractor.

The Subcontractor will not have to assume the responsibility northe role of a hazardous waste generator. The site-specificprocedures for hazardous waste collection and containerization arespecified in Subsection III.B., Site-Specific Specifications.

A.16 Onsite Waste Storage and Disposal

At the direction of the NUS Representative and in compliance withall federal, state, and local rules, regulations, and permit require-ments, any and all wastes which have been generated due to this

NUS 4828 0384 FglMUS 300474' I I CORPORATION

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contract may be left on the site. Wastes which are deemed as non-hazardous by the NUS Representative may be disposed of at theplace of origin. The method of onsite waste disposal is specified inSubsection III.B., Site-Specific Specifications.

Site Cleanup

Upon completion of all work described in these specifications andafter decontamination, the Subcontractor shall remove from thesite all equipment brought by him to the site. The Subcontractorshall also remove from the site all containers, drums (except thosedrums designated under Article A. 15 of this Subsection), tanks,debris, and unused materials, and restore the site as nearly aspracticable to its condition prior to commencement of the workprovided for herein. All walks, drives, utilities, structures, orother property damage due to the Subcontractor's negligence shallbe restored at his expense to as nearly as possible their original-onr"itinn« Payment for work shall not be compl^ti until NUSapproves the cleanup at the completion oi the work.

Site Restoration

The drilling site shall be restored as close as possible to theoriginal condition prior to drilling. No trash, fluid, or other foreignmaterials shall remain at drilling sites. Drilling sites will berestored immediately after completion of the borehole at thatparticular site. The boring and/or monitoring well will not beconsidered complete for payment until the NUS Representativeapproves the drill site restoration in his daily or weekly report.

Security

The Subcontractor is responsible for providing any securitymeasures required to protect his equipment and materials at thesite. The costs quoted shall reflect this.

Permits, Licensing, and Site Access

All well construction/drilling shall meet applicable stateregulations. Subcontractors must be licensed in the state toperform the work. The Subcontractor shall be responsible forobtaining all necessary state and/or local permits necessary for thework. Right of the access to the site and all drilling locations willbe the responsibility of NUS and the Government. Any contactwith land owners or interested parties will be directed through NUSpersonnel.

NUS 4628 0384

_J CORPORATIONA Ha*burton Company

Z0840S04ATTACHMENTPAGE 36 of 47

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B. SITE-SPECIFIC SPECIFICATIONS

This section contains site-specific specifications that elaborate and/or mod-ify the technical specifications provided in Subsection III.A., General Tech-nical Specifications. The Site-Specific Specifications supersede the GeneralTechnical Specifications where differences occur between these specifica-tions.

4

B.1 Drilling Program

The object of the drilling program is to collect samples of earthmaterial and to emplace groundwater monitoring wells. Twosubsurface zones are of interest: the zone of the perchedgroundwater flow system in the residual soil above bedrock, andthe groundwater zone in the underlying quartzite bedrock. At eachdrilling site, a shallow deep hole will be drilled and a monitoringwell constructed in each. Samples will be collected of residualoverburden.

It is anticipated that nineteen wells will be constructed at elevensites. Eight sites will have a deep and shallow hole, and three siteswill have only a deep hole. For purposes of planning it is assumedthat the deep hole will be between 70 and 120 feet deep and theshallow hole will be 25 feet deep. These depths may be changed bythe NUS field representative. Approximate locations of the drillhole sites are shown on Figure 3. Locations of some holes may bechanged at the discretion of the NUS field representative afterinitial drilling has been done. The drilling program is summarizedin Table 1. Requirements for the shallow and deep wells arediscussed below.

Shallow Wells

The preferred method of drilling of shallow holes is by air rotary.It may be necessary to drive casing below the water table. Duringthe drilling of the shallow wells samples of unconsolidatedoverburden will be collected at five-foot intervals. Split spoon orother sampling tubes which can be pushed or drilled below thebottom of the hole will suffice. These samples are intended forchemical analysis; consequently, preservation of the structure andtexture of the earth material is not a major criteria in selecting asampling device.

NUSl CORPORATION

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Hole No.

1-11-22-12-23-13-24-14-25-15-26-16-27-17-28-18-29-1

10-111-1

(1) Shallow

TABLE 1

MONITORING WELL

Water Bearing Depth, ft.Zone (estimated)

overburdenbedrockoverburdenbedrockoverburdenbedrockoverburdenbedrockoverburdenbedrockoverburdenbedrockoverburdenbedrockoverburdenbedrockbedrockbedrockbedrock

overburden(2) Deep bedrock holes

25120251202570257025702570257025100707070

SUMMARY

WaterProducing Zone(estimated1)

15-25(025-70(2)15-2525-7015-2525-7015-2525-7015-2525-7015-2525-7015-2525-7015-2525-7025-7025-7025-70

Health & SafetyProtectiveLevel

DDDDDDDDDDDDDDDDDDD

wells will be screened in bottom 5 feet.will not be screened.

300478

NUS 462B 0384

__i CORPORATIONIA Hallibunon Company

!1


B.2

B.3

—————————— (ted) ——After the hole has been advanced into unweathered bedrock a wellwill be constructed. A five-foot length of stainless steel screen,four inches in diameter will be placed in the hole. A stainless steelriser pipe will extend from the top of the screen to about two feetabove the surface. A gravel pack will be placed around the screenand two feet above the top of the screen. A two-foot zone ofbentonite pellets will fill the annulus aboave the gravel pack. Theannulus above the bentonite seal will be filled by tremie pipe witha cement/bentonite grout. A steel protective casing with a lockingcap will be installed around the top of the riser pipe. Constructiondetails are shown on Figure 4. If water has not been encounteredin the shallow hole it may be plugged with cement/bentonite, orcased as the first phase of a deep drill hole.

Deep Wells

Each of the deep wells will be constructed by drilling through thesoil and weathered bedrock, casing off these shallow zones, andthen deepening the hole until the bedrock -*Ater table is reached.The shallow part of the hole will be drilled in a similar fashion asthe shallow wells, however, in the deep holes stainless steel casingwill be required in the overburden zone. The casing will be seatedin solid bedrock and extend to the surface in order to isolate thewater table from shallow interflow water. The casing will becemented in place with a cement/bentonite grout. A pressuregrouting method will be used to insure a firm seating of the casingin the hole. Construction details are shown in Figure 5. The holewill be deepened using an air down-hole hammer method.

Protective Casing/Locking Caps

All monitoring wells must have protective steel casing enclosingthe riser pipe or casing stickup. All wells must be fitted with alocking steel cap the same day that drilling encounters the waterzone to be monitored. No well will be allowed to be unsecuredovernight. If a permanent locking cap is not available, a temporarydevice must be made so as to secure the well overnight. Allprotective casings will be painted a bright color and clearlynumbered.

Personnel Decontamination

All personnel will be decontaminated prior to leaving anycontrolled areas as described in Article A. 14.7 of Subsection III.A.,and defined on-site by the NUS Representative.

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COFPOnATIONA Halliburton Company


ORIGINS

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A central decontamination station will be constructed onsite by theSubcontractor. The location will be determined by the NUSRepresentative. Additional temporary decontamination areas willbe required at each boring location. The Subcontractor will supplytap-quality water from an approved off-site source, brushes anddecontamination. solutions, and a washings collection pad.Personnel decontamination is required for ojjter boots and gloves.The personnel decontamination procedure shall be as follows.

a. Rinse with tap-quality water and brush to remove visiblesolids.

b. Wash with decontamination solution (5 percent Na3PO/j + 5percent Na2CO3) and brush again.

c. Rinse with tap water.

All washings and spent solutions will be containerized in 55-gallonsteel drums and brought to a centra! location on the site asdetermined by the NUS Representative.

B.4 Equipment Decontamination

All drilling equipment will be decontaminated after completion ofeach borehole. A central decontamination station will beconstructed on the site by the Subcontractor. The location will bedetermined by the NUS Representative. Additional temporarydecontamination areas will be required at each boring location.Equipment and personnel will be decontaminated in the same areas.The Subcontractor will supply pressurized steam cleaningequipment, and a washings collection pad made of concrete, andany other equipment and materials as required in Article A.9 ofSubsection III.A. The Subcontractor will collect all dislodgedmaterial and water runoff from the steam cleaningdecontamination procedure.

Operation of the central and borehole decontamination areas willbe at the direction of the NUS Representative in accordance withthe site Health and Safety Plan. Use of the centraldecontamination station will be required for all equipment whichcan be transported from the borehole locations without excessiveloss of contaminated materials on the site. All personneldecontamination shall be performed at the boreholedecontamination area.

300432NUS .6280384 3 NUS

- • I CORPORATIONQA Hatliburton Company

!•0 RIG IKATTACHMENT La.

PAGE 43 of 47 (•;.-

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B.5 Well Development

All monitoring wells will be developed to permit groundwater toflow easily into the well and provide fresh groundwater samples.Removal of the clay, silt, and other fines from the formation in thewell will allow for proper groundwater sampling. The water willnot be turbid or contain suspended matter, which can easilyinterfere with chemical analysis. The development process of thewells will be accomplished as follows.

a. Bailer - A bailer, sufficiently heavy, will sink rapidly throughthe water. It will be raised and lowered through the wellscreen.

b. Air-lift method - Compressed air will be pumped downcausing the flow of water out of the well. Air-lifts consist ofthe water discharge pipe and air pipe. The air will be appliedintermittently and for short periods. The water will be raisedinside the casing and will fall back down the casing, causingthe desired backflushing action. The air-lift pipes will beplaced above the screen.

c. Suction lift pumps - A pump will be started and stopped sothat the water will be alternately pulled into the well throughthe screen and backflushed through the screen. This methodwill be reasonable for the shallow monitoring wells. Thispumping is limited to areas where the water table will be lessthan about 20 feet below the ground surface.

B.6 Hydraulic Conductivity Testing

The Subcontractor may be expected to assist NUS Corporation withpermeability testing of any or all of the wells after installation.These tests will be in the form of rising and falling head tests.Testing methods may include but are not limited to bailing, slug,and pumping. Determination on the type of test(s) to be conductedwill be made by the NUS representative onsite after more is knownabout groundwater conditions.

B.7 Hazardous Waste Collection and Containerization

All drilling spoils/cuttings, spent decontamination water, and anyother fluids used during drilling, well development and testing, anddecontamination will be collected by the Subcontractor and willnot be discharged to the environment. The material generated willbe segregated according to classification as a solid or liquid. TheSubcontractor will provide suitable 55-galion steel drums tocontain

NUS 462B 0384 '300433IA Haflibunon Company

iy 20840804ATTACHMENT La.PAGE 44 of 47i

ii

all the drilling fluids, including mud, the spent decontaminationwater, and any liquid generated during well development or in-situtesting.

All solid spoils/cuttings will be containerized in 55-gallon steeldrums and brought to a central location on the site as determinedby the NUS Representative.

B.8 Site Specific Health and Safety Information

This section provides details of the protective measures to betaken at the Blosenski Site. Refer to ATTACHMENT l.b foradditional information on Health and Safety Requirements.

Estimated Levels of Protection Required

B.8.1 Casual Work on Surface of the Site

Casual work on the surface of the site has been estsblished torequire Level D protection. The Subcontractor will be prepared toperform work at Level C or Level B if the Subcontractor or theNUS Representative feels these levels are necessary. The NUSRepresentative reserves the right to approve the level ofprotection for the work, and to discontinue the work of theSubcontractor if disagreements occur.

IV. REPORTING REQUIREMENTS

The Subcontractor shall submit daily reports to NUS that detail the workdone during the previous day. The daily reports shall include both the workcompleted and the health and safety level at which the work was performed.Each category shall also include the total footage drilled for each boring witha breakdown by the type of drilling, the number of split-barrel samplescollected; the number of hours (to the nearest quarter hour) of wellconstruction, development and testing, onsite cleaning and decontamination,and standby time; the materials expended for well construction; and thevolume of contaminated materials collected; along with any otherinformation specified by this solicitation. Daily reports shall be submitted tothe NUS Representative by the end of the working day following the day ofwork. No payment will be made for work which has not been verified by theNUS Representative.

All information supplied to NUS shall be provided in good order and shall beclear and legible.

300484

INUS 4«2B 0384 NUS

; CORPORATIONA HWiburton Company

RIBINIUZ0840804ATTACHMENT La.PAGE « " *7 _______________(red!

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V. QUALITY ASSURANCE

NUS has established a comprehensive quality assurance (QA) program tocontrol all project activities. The Subcontractor shall comply with theapplicable elements of that program and shall develop procedures andpractices to implement the elements imposed. The following QA programelements are applicable.

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1. Quality assurance organization/representative - TheSubcontractor shall designate an individual or organization tobe responsible for monitoring the quality of project work andinterfacing with the NUS Manager of Quality Assurance.

2. Preparation of detailed log books and records to document allproject activities, as specified in this solicitation.

3. Chain-of-custody procedures established by NUS for theproject to control sample handling shall be adhered to.

4. All Subcontractor personnel involved in project activitiesshall be trained in the procedures and methods applicable totheir work.

5. At the conclusion of the subcontract activity, all records anddocumentation generated shall be neatly organized andindexed for transfer to NUS, if not requested earlier.

6. NUS will monitor the Subcontractor's performance and willconduct surveillances or audits as determined to benecessary.

The Subcontractor shall promptly correct, at his own expense, anydeficiencies found during the NUS quality assurance surveillances and audits.

VI. HEALTH AND SAFETY

The following general items must be understood by Offerers:

o NUS will develop a site-specific Health and Safety Plan. TheSubcontractor must as a minimum comply with the requirement of theHealth and Safety Plan. A sample Health and Safety Plan is provided inAttachment l.b.

o NUS will provide health and safety training to the SUBCONTRACTOR'Spersonnel working on the site. There is no charge for this training.Subcontractor personnel labor costs and travel and living expenses for thetraining are the responsibility of the Subcontractor.

SNUS 30 04 85! l I CORPORATION

A HaMxjrton Company


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o The SUBCONTRACTOR is responsible for providing protective clothing anddisposable items, which include clothes, boots, respirator cartridges, andgloves.

o Failure of the Subcontractor to adhere to the Health and Safety Plan or toviolate health and safety instructions from the NUS will be grounds forNUS to discontinue work activity, at the Subcontractor's expense. NUSreserves the right to stop work and/or terminate the subcontract if theHealth and Safety Plans are not in compliance.

o SUBCONTRACTOR shall provide appropriate certified air purifyingrespirators. NUS shall provide SCBAs (self contained breathing apparatus).SUBCONTRACTOR employees shall use these devices whenever necessaryto protect their health due to the nature of the working environment.

o SUBCONTRACTOR'S officials are responsible within their jurisdictions forthe implementation of the provisions of this Policy, for assuring that fundsare available for the required training and purchasing and maintainingrespiratory protective devices, and for providing lor occupational medicalmonitoring.

a. Regional Managers and Supervisors. Regional Managers and supervisors areresponsible, to the extent of their authority, for ensuring that:

(1) Appropriate respiratory protective devices are provided, inspected andmaintained;

(2) Employees wear the respiratory protective devices when they arerequired;

(3) Employees are properly trained;

(4) Records are kept of employee training and on the inspection andmaintenance of these devices;

(5) Written standard operating procedures governing the selection and useof respiratory protective devices are established for specificsituations; and

(6) Employees who are required to use respiratory protective devices mustbe included in the Company occupational medical monitoring programand be medically approved for wearing the devices.

b.' Employees. Employees are responsible for using and maintaining therespiratory protective devices provided them in accordance with theinstructions and training they receive, and for reporting a malfunction of adevice to their supervisors.

-S4S280384 ^NUS 300486!———I CORPORATIONOA Haiwxxton Company

i ,» i; ift

Z0840804 ** ** • * • r * *KATTACHMENT 1 .PAGE 47 of 47

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c. Regional and other designated Health and Safety Officers. Regional andother designated Health and Safety Officers are responsible for assistingthe Regional Managers (or equivalent) in their responsibility, and forproviding to and for supervisors support in the areas of training, selectionand maintenance, recordkeeping, and occupational medical monitoring.

<b. Employees. Employees are responsible for using and maintaining the

respiratory protective devices provided them in accordance with theinstructions and training they receive, and for reporting a malfunction of adevice to their supervisors.

c. Regional and other designated Health and Safety Officers. Regional andother designated Health and Safety Officers are responsible for assistingthe Regional Managers (or equivalent) in their responsibility, and forproviding to and for supervisors support in the areas of training, selectionand maintenance, recordkeeping, and occupational medical monitoring.

VH. PERIOD OF PERFORMANCE

It is essential that the work requested in this solicitation be completed in asshort a time as possible, as the data developed in subsequent studies by NUSwill be of significant importance in developing the conclusions andrecommendations for the site.

Therefore, the period of performance of the work described in this solicitationis six weeks. Details of the project are contained in the Scope of Work. TheSubcontractor shall have all equipment and personnel on the site no more thanone week after notification by NUS to proceed.

300487

INUS 462B 0384

i CORPORATIONA HaiiiDurron Company

Documents

SITE OPERATIONS PLAN ORIGINAL (red)OG 5.2 Respiratory Protection OG 5.4 HNU Photoionization Detection Operation s i OG 5.5 Organic Vapor Analyzer Operations OG 5.10 General Safety