Phase II Environmental Site Assessment Roosevelt/Spec Doc… · May 21, 2014 Terracon Project No. 81127021/81147022 Responsive Resourceful Reliable 4 3.0 METHODOLOGY Methods used

Phase II Environmental

Site Assessment

Proposed Roosevelt Development

6800 & 6814-6820 Roosevelt Way NE

Seattle, King County, Washington

May 21, 2014

Terracon Project No.

81147021/81147022

Prepared for:

Emerald Bay Equity, LLC

Seattle, Washington

Prepared by:

Terracon Consultants, Inc.

Mountlake Terrace, Washington

TABLE OF CONTENTS

ii

INTRODUCTION ............................................................................................................. 1 1.01.1 Site Description .................................................................................................... 1 1.2 Project Background .............................................................................................. 1

SCOPE OF SERVICES ................................................................................................... 2 2.02.1 Standard of Care.................................................................................................. 3 2.2 Additional Scope Limitations ................................................................................ 3 2.3 Reliance ............................................................................................................... 3

METHODOLOGY ............................................................................................................ 4 3.0 FIELD INVESTIGATION ................................................................................................. 4 4.0

4.1 Geophysical Survey ............................................................................................. 5 4.2 Drilling Activities ................................................................................................... 5 4.3 Field Screening Methods ..................................................................................... 7 4.4 Soil Sampling ....................................................................................................... 7 4.5 Monitoring Well Installation and Groundwater Sampling ............................... 7 4.6 Analytical Laboratory Testing ............................................................................... 8

RESULTS OF THE FIELD INVESTIGATION .................................................................. 9 5.05.1 Geology/Hydrogeology ........................................................................................ 9 5.2 Field Screening Results ....................................................................................... 9

ANALYTICAL RESULTS .............................................................................................. 10 6.06.1 Soil Sample Results ........................................................................................... 10 6.2 Groundwater Sample Results ............................................................................ 11

FINDINGS & CONCLUSIONS....................................................................................... 11 7.0 RECOMMENDATIONS ................................................................................................. 12 8.0

APPENDIX A – FIGURES

Figure 1 – Site Vicinity Map

Figure 2 – Site Diagram

APPENDIX B – TABLES

Table 1 – Summary of Soil Analytical Results

Table 2 – Summary of Groundwater Analytical Results

APPENDIX C – SOIL BORING LOGS

APPENDIX D – ANALYTICAL REPORTS AND CHAIN OF CUSTODY

APPENDIX E – GEOPOTENTIAL SUMMARY REPORT

Responsive ■ Resourceful ■ Reliable

PHASE II ENVIRONMENTAL SITE ASSESSMENT Proposed Roosevelt Development

6800 & 6814-6820 Roosevelt Way NE

Seattle, King County, Washington

Terracon Project No. 81147021/81147022

May 21, 2014

INTRODUCTION 1.0

Emerald Bay Equity, LLC retained Terracon Consultants, Inc. (Terracon) to perform a Phase II

Environmental Site Assessment (Phase II) at 6800 & 6814-6820 Roosevelt Way NE, Seattle,

Washington (site). The Phase II was initiated to evaluate if a release or releases from historical

site use as a gasoline station, use of the site as an automotive repair facility, former and/or

present underground storage tanks (USTs) and/or hydraulic auto lifts located on the properties

have adversely affected soil and/or groundwater quality at the site.

1.1 Site Description

The site consists of an approximately 0.47-acre tract of land located between NE 68th and NE

69th Street in Seattle, King County, Washington. The site comprises King County tax parcels

365870-0420 (Parcel A) and 365870-0425 (Parcel B) located at 6800 Roosevelt Way NE, and

tax parcel 365870-0410 (Parcel C, North) located at 6814-6820 Roosevelt Way NE. Parcels A

and B are developed with an auto repair facility, Hermann’s International Auto Repair, and

associated paved parking areas for the repair shop. Parcel C located north of Parcels A and B

is developed with two commercial structures with three retail stores occupied by an antiques

store (Found it), a power supplies retailer (Progressive RC), and a thrift store (American Cancer

Society Discovery Shop). A Site Vicinity Map showing the site location is included as Figure 1

and a Site Diagram showing pertinent site features and boring/monitoring well locations is

included as Figure 2 in Appendix A of this report.

Within the context of this report, the property at 6814-6820 Roosevelt Way NE (Parcel C) will be

referenced as the “northern” property and the properties at 6800 Roosevelt Way NE (Parcels B

& C) will be referenced as the “southern” property.

1.2 Project Background

Terracon completed a Phase I Environmental Site Assessment (ESA) for the site with our final

report dated February 20, 2014. Based on the findings of the ESA, Terracon revealed the

following recognized environmental conditions (RECs) in connection with the site:

Phase II Environmental Site Assessment 6800 & 6814-6820 Roosevelt Way ■ Seattle, Washington May 21, 2014 ■ Terracon Project No. 81127021/81147022

Responsive ■ Resourceful ■ Reliable 2

Residual soil impacts associated with two historical waste oil and gasoline USTs on the

southern property that reportedly remain along the eastern excavation boundary and

potential soil impacts associated with product piping that were not addressed during tank

removal activities.

The historical on-site gasoline station on the southern property and associated UST and

related appurtenances that may be present near the southwest corner of the site.

Six hydraulic lifts with subsurface components located on the southern property in the

automotive repair shop that have reportedly leaked in the past.

An oil/water separator and trench drain at the automotive repair shop with sludge

accumulation due to an apparent lack of recent maintenance.

A heating oil UST in use at the northern property since at least 1966.

A UST closed in place at the site at the northern property in 1996.

SCOPE OF SERVICES 2.0

Terracon’s scope of work was conducted to evaluate the findings of our Phase I ESA,

(81147711) dated February 20, 2014, and in general accordance with our Phase II Site

Assessment Proposals, (P81130053 & P81130054) dated February 25, 2014 and subsequent

authorization for additional services. Our scope of services included completion of the following

tasks:

Perform pre-mobilization activities including public and private underground utility

clearances and preparation of a health and safety plan;

Arrange for and coordinate the services of subcontractors;

Perform a geophysical survey in order to evaluate locations of suspect former and/or

present USTs and assess onsite utility clearances;

Advance four direct-push (DPT) soil borings in the vicinity of the hydraulic hoists, six

hollow stem auger (HSA) borings within southern property, and eleven HSA borings

within the northern property. A combined total of seven dedicated groundwater

monitoring wells were installed within the boundaries of the northern and southern

properties;

Complete analytical laboratory analyses on select soil samples retained;

Develop, purge, and sample the groundwater monitoring wells;

Complete analytical laboratory analysis on collected groundwater samples; and,

Prepare this Phase II Environmental Site Assessment report.

The Phase II was conducted to assess the presence or absence of indicator contaminants

associated with the former use of the site as a gasoline station, former/present USTs, and/or the

current use of the site as an automotive repair facility.



2.1 Standard of Care

Terracon’s services were performed in a manner consistent with generally accepted practices of

the profession undertaken in similar studies in the same geographical area during the same

time. Terracon makes no warranties, either express or implied, regarding the findings,

conclusions, or recommendations. Please note that Terracon does not warrant the work of

laboratories, regulatory agencies, or other third parties supplying information used in the

preparation of the report. These Phase II services were performed in accordance with the

scope of work agreed with you, our client, as reflected in our proposals and subsequent

authorization and were not restricted by ASTM E1903-11.

2.2 Additional Scope Limitations

Findings, conclusions, and recommendations resulting from these services are based upon

information derived from the on-site activities and other services performed under this scope of

work; such information is subject to change over time. Certain indicators of the presence of

hazardous substances, petroleum products, or other constituents may have been latent,

inaccessible, unobservable, non-detectable, or not present during these services. We cannot

represent that the site contains no hazardous substances, toxic materials, petroleum products,

or other latent conditions beyond those identified during this Phase II. Subsurface conditions

may vary from those encountered at specific borings or wells or during other surveys, tests,

assessments, investigations, or exploratory services. The data, interpretations, findings, and

our recommendations are based solely upon data obtained at the time and within the scope of

these services.

2.3 Reliance

This report has been prepared for the exclusive use of Emerald Bay Equity, LLC, and any

authorization for use or reliance by any other party (except a governmental entity having

jurisdiction over the site) is prohibited without the express written authorization of Emerald Bay

Equity, LLC and Terracon. Any unauthorized distribution or reuse is at Emerald Bay Equity,

LLC’s sole risk. Notwithstanding the foregoing, reliance by authorized parties will be subject to

the terms, conditions, and limitations stated in the proposal, Phase II report, and the agreement

for services between Terracon and Emerald Bay Equity, LLC. The limitation of liability defined in

the terms and conditions is the aggregate limit of Terracon’s liability to Emerald Bay Equity, LLC

and all relying parties unless otherwise agreed in writing.



METHODOLOGY 3.0

Methods used to complete this report were developed based on information previously gathered

with regard to the site and from our experience on similar projects. A conceptual model of

hydrogeologic and environmental conditions was developed based on site geology and

hydrogeology. The conceptual model included the following key elements:

Probable subsurface conditions would consist of medium dense sands, silty sands

and gravel, followed by dense gravel and gravelly sands at approximately eight to

ten feet bgs. The uppermost water table was inferred to be located at a depth of

approximately 25 feet below ground surface (bgs) and was further inferred to likely

be “perched” on a seasonal basis as a result of the anticipated subsurface soil

conditions/geology.

The probable location of potential on-site impaired media would be in the vicinity of

the RECs discussed in Section 1.2 of this report.

Potential contaminants would consist of total petroleum hydrocarbons (TPH), volatile

organic compounds (VOCs) and/or lead in soil and/or groundwater.

Based on topographic gradient, the hydrogeologic gradient appeared to be toward

the south.

Based on these conceptual subsurface conditions, HSA drilling methods were selected for

completion of subsurface exploration activities. Due to the limited access within the automotive

repair shop, direct push technology (DPT) drilling methods were selected. Investigation

activities are summarized below.

FIELD INVESTIGATION 4.0

Terracon has a 100% commitment to the safety of all its employees. As such, and in

accordance with our Incident and Injury Free® safety goals, Terracon conducted the fieldwork

under a safety plan developed for this project. Work was performed using the Occupational

Health and Safety Administration (OSHA) Level D work attire consisting of hard hats, safety

glasses, protective gloves, and protective boots. In an effort to locate underground utilities in

the work area, Terracon contacted the Washington State Utility Notification Center to arrange

for public underground utility clearance for the proposed explorations. In addition, an

independent utility location service (GeoPotential) was subcontracted by Terracon to identify the

locations and depths of the various utilities located within the structure to avoid damage to such

utilities.



4.1 Geophysical Survey

On March 11, 2014 Terracon subcontracted with GeoPotential of Brightwood, Oregon, to

perform a geophysical survey to detect potential USTs, UST excavations, other potential

anomalies and private utilities on the site. Their effort included a magnetic survey to detect and

map the locations of buried ferrous (iron-bearing) objects, and ground penetrating radar (GPR)

to map both natural and man-made subsurface features such as USTs, utilities, backfilled

excavations and similar features. The survey was performed utilizing a cesium vapor

magnetometer, a GPR system with a 250-Mhz antenna, a magnetic gradiometer, and pipe and

cable locators. A copy of the GeoPotential report is provided in Appendix E.

The survey was performed throughout select areas on the northern and southern properties

(See Figure 2 of this report and Figure 2 of the GeoPotential report). The survey commenced

with acquiring magnetic data in 5-foot sectioned traverses throughout the site. Magnetic data

was downloaded to a computer, which processes and produces a contoured magnetic map.

Buried ferrous objects will produce predominantly positive magnetic anomalies (shown in red on

GeoPotential’s Figure 3 and 5A in Appendix E). On the southern property, one area containing a

magnetic anomaly that may represent buried objects was identified in the southwestern portion

of the site west of the existing structure. On the northern property, one area containing a

magnetic anomaly and verified by an existing fill port identified the presence of a UST.

Following the magnetic survey the GPR survey was conducted by acquiring GPR profiles

across the site to approximate depths of 3 to 5 feet bgs. Finally, magnetic and electromagnetic

scans were conducted to search for product piping. Based on GeoPotential’s interpretation of

the surveys and scans the following was determined:

On the southern property, anomaly M-1 west of the auto repair facility represents a single

probable UST. This UST generally correlates with the previously identified UST associated with

the former gas station located in the southeastern portion of the site, as identified during a

review of historical Sanborn fire insurance map during completion of the Phase I ESA.

GeoPotential approximated the dimensions of the detected UST to be 6 feet by 12 feet. On the

northern property, two anomalies, M-2 and M-3, east of the existing structure were identified.

M-2 was noted as an active UST and measured approximately 4 feet by 8 feet and M-3 was

noted as an inactive UST and measured approximately 4 feet by 6 feet. These site features

also generally correlate with active and inactive USTs previously identified in Terracon’s Phase I

ESA.

4.2 Drilling Activities

On March 12 and 13, 2014, Terracon representatives Adam Stauffer and Eric A. Dubcak

completed the subsurface investigations using Holocene Drilling Inc. (Holocene) and

Environmental Drilling, Inc. (EDI), Washington State-licensed drillers. On April 25 and 26, 2014,

Terracon representative Eric A. Dubcak completed additional subsurface investigations using



Boretec, Inc. (Boretec) a Washington State-licensed driller. The April 2014 borings were

completed to supplement the data collected from the initial March 2014 investigations.

Field activities were performed on the north property within the eastern portion of the property

and east of the existing structures. The field activities performed on the southern property were

performed in the parking lot on the west side of the building and within the service bays adjacent

to the hydraulic hoists. Three borings were advanced on the southern property and were

specifically associated with further evaluation of an apparent release originating from/on the

northern property. To distinguish between the borings and/or monitoring wells advanced on

either the northern or southern property, an “N” for Northern Property, or “S” for the Southern

Property, was added to the boring/MW identification nomenclature. The borings/monitoring well

locations are illustrated on Figure 2 within Appendix A of this report.

Soil samples were collected using direct-push sampling methods (Holocene) in soil borings

B-1S thru B-4S advanced adjacent to the hydraulic hoists on the southern property. These

borings were advanced using a direct-push sampler equipped with disposable acetate sample

sleeves. Throughout the drilling operation, soil samples were obtained continuously (to the

extent practical) from 4-foot long pushes driven into the ground using a 500-foot-pound

percussion hammer. The steel sampling tube was extracted from the hole and the liners were

removed and split open. Non-disposable sampling equipment was cleaned using an Alconox

wash and potable water prior to the beginning of the project.

Soil samples were obtained using a Standard Penetration Test (SPT) sampler (EDI & Boretec)

in the remainder of the soil borings advanced on the northern and southern properties. This

sampler consists of a 2 inch O.D., 1.375 inches I.D. split barrel shaft that is advanced into the

soils at the bottom of the drill hole a total of 18 inches or until practical refusal. SPT’s were

performed at two and a half and/or five-foot intervals using a standard diameter split spoon

sampler driven by a 140 pound hammer free falling a distance of 30-inches in general

accordance with ASTM D-1586. The split spoon samplers and extension rods were extracted

from the hole using a pulley system and split open to extract the soil samples. Non-disposable

sampling equipment was cleaned using an Alconox wash and potable water prior to the

beginning of the project and before collecting each soil sample.

A field log of each boring for both methods was maintained, including the thickness and depth of

each soil unit encountered and the depth to the uppermost water table, if encountered. Soil

samples were observed to document soil lithology, color, and relative moisture content. Soils

were logged in general accordance with American Society for Testing and Materials (ASTM)

Practice Designation D-2488, Standard Practice for Description of Soils (Visual-Manual

Procedure). Boring logs are included in Appendix C. A representative with E3RA, under

contract to the client, was onsite to log geotechnical borehole data from two of the borings

advanced as part of Terracon’s scope of work.



Investigation-derived waste (IDW) consisting of soil cuttings, water from well development and

equipment cleaning, as well as purge water generated during the field activities was placed in

Department of Transportation (DOT) approved drums staged on the northern property. A total

of 25 drums, 20 containing soil cuttings and five containing water are currently stored on site.

4.3 Field Screening Methods

Soil samples from select depths were field-screened using photoionization detector (PID) and/or

conducting a sheen test. Samples were screened by first segregating, at a minimum, one

ounce of soil into a sealed plastic bag. The sealed bag was set aside to allow potential

volatilization from the sample to accumulate. Headspace analysis was performed by

subsequently puncturing each plastic bag with the probe of the PID to estimate the

concentration of volatile components partitioned into the atmosphere (“headspace”) within the

plastic bag. Soils tested for sheens were placed into water to visually observe if sheens emitted

from the soil.

Prior to screening, the PID was calibrated with isobutylene gas (100 ppm). The highest digital

readout value displayed by the instrument was recorded for each sample (the results are

integrated into the boring logs in Appendix C). The value recorded for the PID indicates the

total isobutylene-relative response concentration of VOCs with ionization potentials equal to or

less than the energy produced by the ionizing radiation source (ultraviolet lamp) of the PID.

These compounds include numerous volatile constituents of petroleum hydrocarbons.

However, the PID is not capable of determining the species of these compounds or their

concentration in soil. Consequently, the PID is considered merely a screening tool that aids in

detecting the presence of volatile contaminants in gaseous media.

4.4 Soil Sampling

A total of fifty-six soil samples were collected from the northern and southern properties and

were submitted for laboratory analysis. Additional samples were collected from multiple

borings; however, they were placed on hold pending results of the initially submitted samples.

The results of the soil samples are included on Table 1, of Appendix B.

4.5 Monitoring Well Installation and Groundwater Sampling

EDI and/or Boretec installed a total of seven permanent groundwater monitoring wells in borings

MW-1N, MW-2N, and B-9N (MW-4N) on the northern property and MW-1S, MW-2S, MW-3S

and B-4N (MW-3N) on the southern property. Each groundwater monitoring well consists of a

2-inch inside diameter, schedule 40 flush-threaded PVC pipe. The groundwater monitoring

wells were constructed with a 10, 15 or 20-foot section of 0.010-inch slotted screen, mated to an

appropriate length section of blank riser, which extended to approximately 0.25 feet below the

ground surface. The annular space between the well casing and screen and the borehole wall



was filled with #10-20 silica sand to approximately one foot above the screened interval. A

hydrated bentonite seal was placed above this, and the wells were completed at the ground

surface with lockable, flush-mount monuments that were cemented in place. The monitoring

wells were constructed in accordance with Washington State’s Minimum Standards for

Construction and Maintenance of Wells Chapter 173-160 WAC. Monitoring well construction

details are provided along with the boring logs in Appendix C of this report.

Following well construction from the March 2014 investigation, Terracon returned to the site on

March 17, 2014 to develop the five newly installed monitoring wells. Groundwater monitoring

wells MW-1S and MW-3S were “dry”. The remaining three groundwater monitoring wells

MW-1N, MW-2N and MW-2S were subsequently developed by purging with a dedicated,

disposable polyethylene bailer. The recharge rate of the monitoring wells was relatively slow. It

was noted that the purge water collected from MW-1N contained a hydrocarbon odor.

Approximately five gallons of development water was generated during the development. Depth

to groundwater from the top of casing from each of the groundwater monitoring wells is

documented in Table 3, of Appendix B.

Following the development of MW-1N, MW-2N and MW-2S, one groundwater sample was

collected from each of the wells on March 19, 2014. Groundwater monitoring wells MW-3N and

MW-4N were installed during the April 2014 investigations and were subsequently sampled on

May 16, 2014. Prior to sample collection, groundwater levels in the wells were measured with

an electric oil/water level indicator. Subsequently, the monitoring wells were purged until

consistent values (i.e., less than 10% variance between consecutive readings) were obtained

for pH, turbidity, dissolved oxygen, oxidation-reduction potential, and conductivity using a multi-

parameter water quality meter equipped with a flow through cell.

Groundwater samples from the wells were collected with a peristaltic pump utilizing low flow

techniques. Dedicated polyethylene tubing was placed within the submerged screened interval

of the well. Discharge from the peristaltic pump was directed into laboratory provided

glassware. Each sample container was labeled with the project number, date, time, well

number, and sample number. Sample containers were placed in a chilled cooler immediately

after sampling, and subsequently transported to the analytical laboratory by Terracon under

strict chain-of-custody procedures.

4.6 Analytical Laboratory Testing

Samples collected during this investigation were submitted for chemical analysis to Friedman

and Bruya, Inc., a Washington State accredited laboratory. Soil and groundwater samples were

analyzed for some and/or all of the following:



Gasoline-, diesel- and/or oil-range TPH using Northwest Methods NWTPH-GX

and DX;

Benzene, toluene, ethylbenzene and xylenes (BTEX) using EPA Method 8021;

VOCs using EPA Method 8260C; and/or

Metals (Lead) using EPA Method 200.8.

The executed chain-of-custody forms and laboratory analytical certificates are provided in

Appendix D. All analyses were completed using standard turnaround times.

Data packages were checked for completeness immediately upon receipt from the laboratory to

ensure that data and QA/QC information requested were present. Data quality was assessed

by considering holding times, surrogate recovery, method blanks, matrix spike and matrix spike

duplicate recovery, and detection limits.

RESULTS OF THE FIELD INVESTIGATION 5.0

5.1 Geology/Hydrogeology

Specific conditions encountered at each boring location are noted on the individual investigation

boring logs (Appendix C). Where installed, dedicated monitoring well construction details are

also included on the boring logs. Inferred changes in soil characteristics or lithology noted

during drilling are depicted on the boring logs and represent the approximate depth of the

observed changes; in-situ, the transition between materials may have been be gradual and the

inferred soil typed and depths encountered at the locations explored should be expected to vary

at other areas of the site.

In general, subsurface soil conditions at the site consisted of medium dense sand and gravel

mixtures with varying amounts of silt to depths of approximately 8 to 12 feet bgs. Soils with

similar gradation became dense to very dense immediately thereafter and continued to be

encountered to the maximum depths explored of approximately 30 feet bgs. Near surface soils

were generally found to be in a moist condition, with increasing moisture content at depth

including saturated at a number of the locations drilled. Apparent perched groundwater was

encountered at approximately 15 to 25 feet bgs at the time of drilling.

5.2 Field Screening Results

The field screening results are summarized on the boring logs in Appendix C. Elevated PID

readings were not registered on samples collected on the southern property from borings B-1S

thru B-7S and MW-1S thru MW-3S and on samples collected on the northern property from

borings MW-2N, B-8N (MW-4N) and B-9N. Elevated PID readings were registered on samples

collected on the northern property from borings B-1N, B-6N and B-7 N ranging from 125 ppm to

350 ppm. Although SPT samples collected from borings B-2N, B-3N, B-4N (MW-3N) advanced



on the southern property and boring B-5N advanced on the northern property did not have

elevated PID readings, the auger cuttings from the respective borings exhibited PID readings

ranging from 12.5 to 245 ppm. Grab soil samples were collected from the respective auger

cuttings to document apparent petroleum impacts which were not observed at the pre-selected

sampling depth intervals.

ANALYTICAL RESULTS 6.0

The laboratory analytical report and chain-of-custody record are attached in Appendix D. The

following sections describe the results of the testing.

6.1 Soil Sample Results

Gasoline-, diesel- and oil-range TPH were not detected above analytical method detection limits

(MDLs) in the samples collected from borings B-2N, B-3N, B-4N, B-5N, B-8N and B-9N

associated with the northern property; however, the auger cuttings associated with borings B-

2N, B-3N andB-5N had reportable gasoline-, diesel- and/or oil-range TPH concentrations. Soil

samples collected from borings B-1N, B-6N, B-7N, MW-1N and MW-2N associated with the

northern property had gasoline-, diesel- and oil-range TPH concentrations that were above

analytical MDLs and/or above the Washington State Department of Ecology (Ecology) Model

Toxic Control Act (MTCA) Method A Cleanup Levels.

Gasoline-, diesel- and oil-range TPH were not detected above analytical MDLs in any of the

samples collected from the borings associated with the southern property, except for boring B-

7S collected at a depth of 7 ½ to 8 feet bgs.

BTEX was analyzed on select samples and concentrations were not detected above analytical

MDLs on the samples collected from the northern property borings B-2N, B-3N, B-4N and B-5N

and from the southern property borings B-5S, B-6S, MW-1S and MW-2S. Soil samples

collected from borings B-1N, B-6N and MW-1N and the auger cuttings from boring B-5N had

concentrations of BTEX that were above analytical MDLs and/or MTCA Method A Cleanup

Levels.

VOCs were analyzed by EPA Method 8260C on select samples collected from borings

advanced on the northern and southern property. No VOC’s were detected above analytical

MDLs via EPA Method 8260C.

Lead was analyzed on only the soil samples collected from borings B5-S, B-6, MW-1S and MW-

2S associated with the southern property. Lead was detected at low concentrations ranging

from 1.43 to 82.9 mg/kg. A summary of the soil analytical results are provided on Table 1,

Appendix B.



6.2 Groundwater Sample Results

VOCs, BTEX, lead and gasoline, diesel and/or oil-range TPH were not reported at

concentrations above analytical MDLs in the groundwater samples collected from MW-2N and

MW-4N. Concentrations of BTEX and/or gasoline- and diesel-range TPH above analytical

MDLs and/or MTCA Method A Cleanup Levels were detected in the groundwater samples

collected from MW-1N and MW-3N.

BTEX, lead and gasoline, diesel and/or oil-range TPH were not reported at concentrations

above analytical MDLs in the groundwater sample collected from MW-2S. Groundwater

monitoring wells MW-1S and MW-3S have not produced sufficient groundwater for collection of

groundwater samples. Laboratory analytical results for water are summarized in Table 2,

Appendix B.

FINDINGS & CONCLUSIONS 7.0

Terracon completed the Phase II ESA at the site to evaluate if the RECs associated with the site

may have impacted site soils and/or groundwater with constituents commonly associated with

historical and current on-site occupants and former/existing site use. Two phases of subsurface

investigation were completed for the purpose of this assessment. The second phase,

completed during April and May 2014, was conducted to augment the data that was identified

during the initial phase, performed during March 2014.

Based on the combined results from the investigations completed at the northern and southern

properties, it appears that a release has occurred at the northern property and migrated, at least

in part, onto the northern portion of the southern property. Specifically, soil borings B-2N, B-3N,

and B-4N (MW-3N) were advanced on the southern property to assess if the soil and/or

groundwater impacts identified on the northern property had migrated south, in an apparent

topographic down-gradient direction.

Soil samples and/or auger cuttings collected from these borings contained concentrations of

BTEX and/or TPH that were detected above analytical MDLs and/or MTCA Method A Cleanup

Levels. Additionally, the groundwater samples collected from monitoring wells MW-1N and

MW-3N contained concentrations of BTEX and/or gasoline and diesel-range TPH that were

above analytical MDLs and/or MTCA Method A Cleanup Levels. During an April 2014

groundwater monitoring and sampling event, phase separated hydrocarbon (free product)

resembling weathered gasoline was observed in groundwater monitoring well MW-1N.

Apparent product thickness in the monitoring well was measured at approximately 0.02 foot.

The northern property currently contains one UST that appears to be active and one UST that

has been reported as decommissioned. Based on the results of the investigations competed in

the vicinity of these two USTs, it appears that a release has occurred from one and/or both of



the USTs and/or associated product piping. Furthermore, it was observed that an apparent

heating oil UST of unknown status and/or condition may be located on property immediately

east of 6814-6820. Potential releases from this UST could migrate on to the subject property.

At this time, it is not known whether or not the off-site UST may have contributed to the

documented impacts to soil and/or groundwater identified by this assessment.

Based on the investigations completed solely to evaluate those REC’s associated with the

southern property, it does not appear that there has been a significant release associated with

the documented historical use as a gasoline station and/or the present use of the site as an

automotive repair facility (i.e. hydraulic hoists, former USTs and/or floor drains). The only

petroleum concentrations (diesel & oil-range TPH) identified from borings on the southern

property were documented within the former UST excavation that was located west of the onsite

service bays (See Figure 2). Although these concentrations were below respective MTCA

Method A Cleanup Levels, the concentrations confirm the presence of residual petroleum

impacts that were previously documented with the former UST removal report (completed by

others).

Based on the results of the four direct-push borings completed in the vicinity of the hydraulic

hoists, it does not appear that the hoists, which have been reported to have leaked, have

experienced a significant release which migrated to the areas explored. The borings advanced

in the vicinity of the hoists were limited to depth due to dense soil drilling refusal of the DPT drill

rig at approximately 10 feet bgs.

The UST and/or UST anomaly identified in the southwestern portion of the site, likely associated

with the former historic onsite gasoline station, does not appear to have significantly impacted

site soils in the vicinity of the two borings (B-5S & B-6S).

The groundwater sample collected from groundwater monitoring well MW-2S, located along the

southern side boundary, did not have detectable concentrations for the analytes tested. At the

time of groundwater sampling events, monitoring wells MW-1S and MW-3S had not generated

sufficient groundwater for sampling.

RECOMMENDATIONS 8.0

Based on the results of the northern and southern property investigations, additional subsurface

investigation in an attempt to further characterize the extent of the petroleum impacts to soil and

groundwater identified within and beyond the northern property boundaries appears warranted

at this time. The BTEX and/or TPH impacts reported above the MTCA cleanup levels on the

northern property appear to have migrated onto the southern property. Although petroleum

impacts on the northern property appear to have been delineated in a northerly direction,

impacts have not been delineated and a point of compliance has not been established to the

west, east, or south (beyond borings B-2N, B-3N and B-4N).



The apparent heating oil UST of unknown status located on property immediately east of 6814-

6820 was not evaluated as part of this assessment. Potential releases from this UST could

migrate on to the subject property. At this time, it is not known whether or not the off-site

heating oil UST may have contributed to the documented impacts to soil and/or groundwater

identified by this assessment. Further subsurface investigation would be required to evaluate

this matter, and it should be understood that a thorough subsurface investigation to evaluate

this potential off-site source would likely warrant offsite access, which may not be achievable at

this time.

The petroleum constituents identified in soil and groundwater at the northern property represent

a Vapor Encroachment Condition (VEC) as defined by ASTM E 2600-10. This VEC may also

represent a Vapor Intrusion Condition (VIC), whereby the potential for indoor air quality issues

within the structures located on the northern property may exist. Additional investigations,

including sub-slab soil gas and/or indoor air sampling and laboratory testing would be warranted

to evaluate if the identified VEC represents a VIC.

Terracon recommends that the identified USTs located on the northern and southern properties

be properly decommissioned in accordance with Chapter 90-76 WAC, Underground Storage

Tank Statute and Regulations as well as Chapter 70.105D RCW, and its implementing

regulations, the Model Toxics Control Act (MTCA), Chapter 173-340 WAC.

Although results of the hydraulic hoist and/or former UST investigation on the southern property

did not identify significant releases, it was reported that the hoists have leaked in the past. At

the time of hoist decommissioning activities and removal of the associated subsurface

components, floor drains, piping, etc. it is possible that petroleum-impaired soils may be

encountered. Terracon recommends that all potential sources of petroleum contamination be

removed under the oversight of an environmental professional.

Although concentrations above MTCA Cleanup Levels were not detected from the samples

collected from the vicinity of the southern former UST excavation, low level petroleum-impaired

soils were identified. It was formerly reported by others in a prior report that petroleum impaired

soils associated with this UST excavation extended east beneath the existing structure.

In an effort to mitigate construction delays, unforeseen incremental cost impacts, and future

liability concerns associated with the petroleum-impacted soil and groundwater identified by this

assessment, Terracon recommends that an Environmental Media Management Plan (EMMP)

be prepared and become an integral part of the project plans and specifications. The EMMP

would serve to outline any unique handling and off-site disposition elements of excavated soils

and (although unlikely), dewatering fluids generated during mass excavation. The EMMP would

also serve to provide guidance to the general contractor as well as the earthwork contractor

regarding construction worker health and safety and the pertinent requirements of 29 CFR



1910.120. The EMMP would also provide guidance with regard to documentation of impacted

media occurrence and handling during construction.

Section 173-340-300(2)(a) of the Model Toxics Control Act states that: “Any owner or operator

who has information that a hazardous substance has been released to the environment at the

owner or operator's facility and may be a threat to human health or the environment shall report

such information to the department within ninety days of discovery. Releases from underground

storage tanks shall be reported by the owner or operator of the underground storage tank within

twenty-four hours of release confirmation, in accordance with WAC 173-340-450.

The Investigation Derived Waste (IDW - 25 drums) currently staged onsite should be properly

transported and disposed off-site at a regulated facility and in accordance with local, state, and

or federal rules and regulations.

APPENDIX A – FIGURES

approximatesite location

N

USGS Seattle North Quadrangle, 2011

Project Mngr:

Approved By:

Checked By:

Drawn By:

Project No.

Scale:

Date:

File No.

FIG. No.

Consulting Engineers and Scientists

21905 64th Avenue W., Ste 100 Mountlake Terrace, WA 98043FAX. (425) 771-3549PH. (425) 771-3304

SITE VICINITY MAP

Seattle, King County, Washington6800 Roosevelt Way NE


April 2014

Not to scale

81147021

EAD

EAD

KM

SWD

1

NE 68th Street

Ro

ose

ve

lt W

ay N

E

Hermann's International

Auto Repair

Found It

Progressive R

CT

hrift S

tore

A

reportedly

decommissioned UST

fill port

B-1S

B-2S

B-3S

B-4S

capped waste

oil fill port

floor

drain

B-5S

B-6S

MW-1S

MW-2S

MW-3S

B-7S

MW-1N

MW-2N

B-1N

UST fill port

(off site)

B-8N/MW-4N

B-9N

B-7N

B-6N

B-5N

B-2N

B-4N/MW-3N

B-3N

Gra

ve

l

c

a

n

o

p

y

IDW

drums

canopy

Asp

ha

lt

A

a

s

p

h

a

l

t

p

a

r

k

i

n

g

l

o

t

6800 R

oosevelt W

ay N

E

(P

arcels A

&

B

)

6814 - 6820 R

oosevelt W

ay N

E

(P

arcel C

)

N

Project Mngr:

Approved By:

Checked By:

Drawn By:

Project No.

Scale:

Date:

File No.

FIG. No.

Consulting Engineers and Scientists

21905 64th Avenue W., Ste 100 Mountlake Terrace, WA 98043FAX. (425) 771-3549PH. (425) 771-3304

Site Diagram

Seattle, King County, Washington6800 & 6814-6820 Roosevelt Way NE


May 2014

Figure2updated.dwg

Not to scale

81147022

SWD

EAD

EAD/AAS

SWD

2

approximate site boundary

MW-1N

B-1N

approximate location Terracon monitoring well

approximate location Terracon boring

approximate location underground storage tank (UST)

approximate location above ground storage tank (AST)

approximate location UST excavation

LEGEND

A

APPENDIX B – TABLES

Metals VOCs

Gas

olin

e-R

ange

Die

sel-R

ange

Oil-

Ran

ge

Ben

zene

Tol

uene

Eth

ylbe

nzen

e

Xyl

enes

Lea

d

S-2 3/12/2014 8.5-9 430 v 3,100 ND<250 ND<0.02 ND<0.02 ND<0.02 5.5 ve NS NS

S-3 3/12/2014 12.5-13.5 690 v 25,000 400 x 0.060 0.63 2.2 12 ve NS NS

S-4 3/12/2014 18-19 ND<2 71 x ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-3 3/12/2014 12.5-13.5 130 1,100 ND<250 ND<0.02 ND<0.02 0.091 0.51 NS NS

S-4 3/12/2014 17.5-18.5 120 60 ND<250 ND<0.02 ND<0.02 0.13 0.45 NS NS

S-5 3/12/2014 22.5-23 7.8 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-6 3/12/2014 27.5-28 16 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-2 3/12/2014 8-9 6.8 ND<50 ND<250 NS NS NS NS NS ND

S-5 3/12/2014 22.5-23.5 ND<2 ND<50 ND<250 NS NS NS NS NS ND

S-2 4/25/2014 12.5-13.5 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-3 4/25/2014 15-16 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS


Cuttings 4/25/2014 20-25 3.5 64 ND<250 NS NS NS NS NS NS


S-4 4/25/2014 20-21 ND<2 720 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

Cuttings 4/25/2014 20-25 110 960 ND<250 ND<0.02j ND<0.04 ND<0.04 ND<0.06 NS NS

S-3 4/25/2014 15-15.5 ND<2 ND<50 ND<250 NS NS NS NS NS NS

S-4 4/25/2014 17.5-18.5 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-5 4/25/2014 20-21 ND<2 ND<50 ND<250 NS NS NS NS NS NS

Cuttings 4/25/2014 20-25 ND<2 ND<50 ND<250 NS NS NS NS NS NS

S-3 4/25/2014 15-15.5 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 NS NS

S-4 4/25/2014 17.5-18.5 ND<2 ND<50 ND<250 NS NS NS NS NS NS


Cuttings 4/25/2014 15-20 470 2,600 ND<250 ND<0.02j ND<0.1 1.2 6.5 NS NS

B-2N

B-3N

B-4N

B-5N

Sample Depth (ft)

B-1N

MW-1N

MW-2N

Boring ID

Sample Number

TABLE 1

BTEXTPH

SUMMARY OF SOIL ANALYTICAL RESULTSProposed Roosevelt Development

6800 & 6814-6820 Roosevelt Way NESeattle, King County, Washington

all concentrations are in mg/kg (milligrams per kilogram)

Sample Date

Metals VOCs

Gas

olin

e-R

ange

Die

sel-R

ange

Oil-

Ran

ge

Ben

zene

Tol

uene

Eth

ylbe

nzen

e

Xyl

enes

Lea

d

Sample Depth (ft)

Boring ID

Sample Number

TABLE 1

BTEXTPH




Sample Date

S-2 4/25/2014 10-11 ND<2 ND<50 ND<250 <0.02 <0.02 <0.02 ND<0.06 NS NS

S-3 4/25/2014 15-15.5 630 1,100 ND<250 0.03j 0.13 2.0 11 NS NS

S-4 4/25/2014 17-18 340 7,200 ND<250 0.03j 0.28 0.79 5.2 NS NS


S-3 4/25/2014 12.5-13.5 110 960 ND<250 NS NS NS NS NS NS

S-4 4/25/2014 15-16 63 620 ND<250 NS NS NS NS NS NS

Cuttings 4/25/2014 5-7.5 ND<2 250 ND<250 NS NS NS NS NS NS




S-2 4/25/2014 15.15.5 ND<2 ND<50 ND<250 NS NS NS NS NS NS


S-1 3/13/2014 8 NS ND<50 ND<250 NS NS NS NS NS NS

S-2 3/13/2014 11.5 ND<2 ND<50 ND<250 NS NS NS NS NS ND

S-1 3/13/2014 7.5 NS ND<50 ND<250 NS NS NS NS NS NS

S-2 3/13/2014 9.5 NS ND<50 ND<250 NS NS NS NS NS NS





S-2 3/13/2014 8-9 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 2.78 NS

S-4 3/13/2014 17.5-18.5 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 1.71 NS



S-2 3/13/2014 7.5-8 ND<2 140x 1,000 NS NS NS NS NS ND


B-5S

B-6S

B-7S

B-8N

B-9N

B-1S

B-2S

B-3S

B-4S

B-6N

B-7N

Metals VOCs

Gas

olin

e-R

ange

Die

sel-R

ange

Oil-

Ran

ge

Ben

zene

Tol

uene

Eth

ylbe

nzen

e

Xyl

enes

Lea

d

Sample Depth (ft)

Boring ID

Sample Number

TABLE 1

BTEXTPH




Sample Date



S-3 3/13/2014 13.5-14 ND<2 ND<50 ND<250 ND<0.02 ND<0.02 ND<0.02 ND<0.06 1.73 NS



S-3 3/13/2014 13-14 ND<2 ND<50 ND<250 NS NS NS NS NS ND

30/1001 2,000 2,000 0.03 7 6 9 250 varies

Note: Values detected are in BOLD type.

TPH - total petroleum hydrocarbons

VOCs - volatile organic compounds

BTEX - Benzene, Toluene, Ethylbenzene, Xylene

MTCA - Model Toxics Control Act

NS - not sampled

ND - Not detected above laboratory reporting limit.

1 - Gasoline mixtures without benzene and the total of ethylbenzene, toluene and xylene are less than1% of the gasoline mixture.

j - The result is below normal reporting limits. The value reported is an estimate.

x - The sample chromatographic pattern does not resemble the fuel standard used for quantitation.

MW-1S

MW-2S

MW-3S

MTCA Method A Cleanup Level

VOCs Metals

Gas

olin

e-R

ange

Die

sel-R

ange

Oil-

Ran

ge

Ben

zene

Tol

uene

Eth

ylbe

nzen

e

Xyl

enes

Lea

d

MW-1N 3/19/2014 630 850 ND<250 ND<1 ND<1 4.4 27 NS ND<1

MW-2N 3/19/2014 ND<100 ND<50 ND<250 NS NS NS NS ND ND<1

MW-3N 5/16/2014 590 1000 ND<250 NS NS NS NS NS NS

MW-4N 5/16/2014 ND<100 ND<50 ND<250 NS NS NS NS NS NS

MW-2S 3/19/2014 ND<100 ND<50 ND<250 ND<1 ND<1 ND<1 ND<3 NS ND<1

1,000 500 500 5 1,000 700 1,000 Varies 15

Note: Values detected are in BOLD type.

TPH - total petroleum hydrocarbons

BTEX - Benzene, Toluene, Ethylbenzene, Xylene

VOCs - Volatile organic componds MTCA - Model Toxics Control Act NS - Not sampled ND - Not detected above laboratory reporting limit.

TPH

MTCA Method A Cleanup Level

BTEX

Sample Number

Sample Date

TABLE 2

SUMMARY OF GROUNDWATER ANALYTICAL RESULTSProposed Roosevelt Development


all concentrations are in µg/l (micrograms per liter)

TABLE 3

SUMMARY OF DEPTH TO GROUNDWATER MEASUREMENTS

Well Sample Depth to Depth to Product Number Date Product Water Thickness

(Feet) (Feet) (Feet)

3/17/2014 0.00 14.15 0.00

4/26/2014 19.46 19.48 0.02

5/16/2014 0.00 20.43 0.00

3/17/2014 0.00 23.67 0.00

4/26/2014 0.00 23.26 0.00

5/16/2014 0.00 23.28 0.00

5/16/2014 0.00 22.58 0.00

5/16/2014 0.00 21.03 0.00

3/17/2014 --- dry ---

4/25/2014 --- NG ---

5/16/2014 0.00 24.58 0.00

3/17/2014 0.00 21.26 0.00

4/25/2014 --- NG ---

5/16/2014 0.00 23.35 0.00

3/17/2014 --- dry ---

4/25/2014 0.00 28.95 0.00

5/16/2014 0.00 29.23 0.00

NG: not gauged

MW-4N screened 9-24'

MW-1S screended 10-25'

MW-2S screened 10-25'

MW-3S screened 10-30'

Proposed Roosevelt Development6800 & 6814-6820 Roosevelt Way NE

Seattle, Washington




APPENDIX C – SOIL BORING LOGS

0.2

7.5

12.5

17.5

19.0

-Photoionization detector (PID) values in parts per million (ppm)

2" AsphaltWELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), brown to dark brown, medium dense, moist, noodor / no sheen

WELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), grayish-brown, dense, moist, no odor / no sheen

grades to saturated - driller noted water on split spoon exterior

SILTY SAND (SM), trace gravel, gray, very dense, saturated, strong hydrocarbon odor, slight sheen

POORLY GRADED SAND WITH SILT (SP-SM), gray, very dense, grades to moist, no odor / no sheen

Boring Terminated at 19 Feet

5-5-7N=12

10-19-30N=49

8-50/4"

25-29-34N=63

S-1PID<1.0

S-2PID<1.0

S-3PID=350

S-4PID=2.7

LOCATION

DEPTH

The stratification lines represent the approximate transition between differing soil types and/or rock types;in-situ these transitions may be gradual or may occur at different depths than shown.

Hammer Type: Automatic SPT Hammer

GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

RIN

G L

OG

B-1

& M

W-1

&2.

GP

J T

EM

PLA

TE

UP

DA

TE

3-3

1-14

.GP

J 5

/21/

14

CLIENT:

6800 & 6814-6820 Roosevelt Way NE Seattle, WashingtonSITE:

PROJECT: Proposed RooseveltDevelopment

Page 1 of 1

Advancement Method:Hollow Stem Auger

Abandonment Method:Boring backfilled with bentonite chips upon completion

21905 64th Ave. W, Suite 100Mountlake Terrace, Washington

Notes:

Project No.: 81147022

Drill Rig: B-51 Mobile Drill

Boring Started: 3/12/2014

BORING LOG NO. B-1NEmerald Bay Equity, LLCSeattle, Washington

Driller: EDI

Boring Completed: 3/12/2014

MATERIAL DESCRIPTION

SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

While Drilling

WATER LEVEL OBSERVATIONS

0.2

2.5

7.58.08.2

12.5

17.5

22.5

28.0

-Photoionization detector (PID) values in parts per million (ppm)-Well ID# BHZ-430

2" AsphaltWELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), dark brown, mediumdense, moist, no odor / no sheen

POORLY GRADED SAND WITH SILT (SP-SM), brown, medium dense, moist, no odor /no sheenrock fragment in split spoon bit

driller noted 'sandy' drilling at 5'

POORLY GRADED SAND WITH GRAVEL (SP), trace silt, grayish-brown, mediumdense, moist, no odor / no sheenPOORLY GRADED SAND (SP), gray, 2" lens of course sandWELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), grayish-brown, mediumdense, moist, no odor / no sheen

SILTY SAND WITH GRAVEL (SM), trace gravel, gray, very dense, moist-to-saturated,slight hydrocarbon odor, no sheen

cuttings at approx. 17' saturated, hydrocarbon odor, PID=30ppmSILTY SAND (SM), gray, very dense, saturated, hydrocarbon odor, no sheen

with gravel and rock fragments (in sample spoon), slight hydrocarbon odor


4-7-22N=29

8-12-12N=24

15-30-40N=70

24-38-50/4"

50

50/3"

S-1PID<1.0

S-2PID<1.0

S-3PID=10

S-4PID=170

S-5PID=8

S-6PID=7

concrete andflush monument

bentonite seal

sand

2" slotted pipe

sand

bentonite seal

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

RIN

G L

OG

B-1

& M

W-1

&2.

GP

J T

EM

PLA

TE

UP

DA

TE

3-3

1-14

.GP

J 5

/21/

14

CLIENT:



Page 1 of 1


Abandonment Method:Boring completed as permanent monitoring well


Notes:



Well Started: 3/12/2014

WELL LOG NO. MW-1NEmerald Bay Equity, LLCSeattle, Washington

Driller: EDI

Well Completed: 3/12/2014


SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:

INSTALLATION DETAILS

While Drilling


0.2

7.5

17.5

28.0

-Photoionization detector (PID) values in parts per million (ppm)-Well ID# BHZ-431

2" AsphaltWELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), dark brown, loose, moist,burnt wood debris, slight hydrocarbon and/or organic odor, no sheen

WELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), grayish-brown, very dense,moist, rock fragments in sampler, slight hydrocarbon odor, no sheen (inadequate recoveryfor PID screen after filling lab media)

grades to saturated

SILTY SAND WITH GRAVEL (SM), gray, very dense, saturated, no odor / no sheen

grades to moist


2-3-5N=8

14-37-40N=77

50

50

50

50

S-1PID=5

S-2PID=NA

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

S-6PID<1.0


bentonite seal

sand

2" slotted pipe

sand

bentonite seal

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

RIN

G L

OG

B-1

& M

W-1

&2.

GP

J T

EM

PLA

TE

UP

DA

TE

3-3

1-14

.GP

J 5

/21/

14

CLIENT:



Page 1 of 1




Notes:




WELL LOG NO. MW-2NEmerald Bay Equity, LLCSeattle, Washington

Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


While Drilling


0.3

5.0

10.0

12.5

15.0

20.0

25.0

30.030.5

-Photoionization detector (PID) values in parts-per-million (ppm)

1.5" ASPHALT CONCRETE, blackSANDY GRAVEL (SP), brown, dense, moist, no odor / no sheen

SILTY SAND (SM), brown, dense, moist, no odor / no sheen

SILTY SAND (SM), with gravel, gray, very dense, moist, no odor / no sheen

SANDY GRAVEL (GP), brown, very dense, moist, no odor / no sheen

SILTY SAND (SM), with gravel, brown, very dense, moist, no odor / no sheen

SILTY GRAVEL (GM), gray, very dense, moist, no odor / no sheen

hydrocarbon odor in auger cuttings - PID=12.6

SILTY SAND (SM), with gravel, gray, very dense, moist, no odor / no sheen

SILTY SAND (SM), brown, very dense, moist, no odor / no sheenBoring Terminated at 30.5 Feet

18-22-28N=50

50/1"

29-50/6"

40-50/4"

22-50/4"

28-50/4"

50/6"

S-1PID<1.0

PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

S-6PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:


Drill Rig: EC 95 Track



Driller: Boretec1, Inc.



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

30

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.3

10.0

15.0

20.0

25.025.4


1.5" AsphaltSANDY GRAVEL (GP), brown, very dense, moist, no odor / no sheen

SILTY SANDY GRAVEL (GP-GM), brown, very dense, moist, no odor / no sheen

SAND (SP), trace gravel, brown, very dense, moist, no odor / no sheen

SAND (SP-SM), with silt, gray, very dense, moist, no odor / no sheen

hydrocarbon odor in auger cuttings at 20-25 feet - PID=245

SILTY SAND (SM), with gravel, gray, very dense, moist, no odor / no sheenBoring Terminated at 25.4 Feet

29-50/4"

29-50/3"

40-50/6"

27-50/5"

50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:








SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


10.0

15.0

17.5

20.0

25.025.4

-Photoionization detector (PID) values in parts-per-million (ppm)-Well ID: BHX-354

SAND (SP), with gravel, brown, very dense, moist, no odor / no sheen

GRAVEL (GP), with sand, brown, very dense, moist, no odor / no sheen

SAND (SP), with gravel, brown, very dense, moist, no odor / no sheen

SAND, brown, very dense, moist, no odor / no sheen

SILTY SAND (SP-SM), with gravel, gray, very dense, moist, no odor / no sheen

hydrocarbon odor in auger cuttings at 20-25 feet - PID=21

SAND (SP), trace silt and gravel, brown, moist, no odor / no sheenBoring Terminated at 25.4 Feet

17-34-40N=74

40-35-45N=80

45-50/4"

29-50/3"

50/5"

50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

S-6PID<1.0


bentonite seal

sand

2" slotted pipe

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:




WELL LOG NO. B-4N/MW-3NEmerald Bay Equity, LLCSeattle, Washington




SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


While Drilling


0.3

10.0

15.0

20.0

23.2

-Photoionization detector (PID) values in parts-per-million (ppm)-Blow counts for S-6 not recorded

TOPSOILSAND (SP), with gravel, brown, dense, moist, organic odor / no sheen

SAND (SP), with gravel, gray, very dense, moist, no odor / no sheen

SILTY SAND (SM), with gravel, brown, very dense, moist, no odor / no sheen

hydrocarbon odor in auger cuttings - PID=181

SILT (ML), with sand, brown, very dense, wet, no odor / no sheen

Boring Terminated at 23.167 Feet

32-18-24N=42

40-50/5"

48-50/4"

50/4"

20-29-50N=79

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

S-6PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:








SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


15.0

20.0

25.025.4


SANDY GRAVEL (GP), brown, dense to very dense, moist no odor / no sheen

hydrocarbon odor in auger cuttings - PID=179

SILT (ML), with sand, gray, very dense, saturated, hydrocarbon odor

SAND (SP), with silt, gray, very dense, wet, hydrocarbon odor

SANDY SILTY GRAVEL (GP-GM), brown, very dense, moist, no odorBoring Terminated at 25.4 Feet

26-21-29N=50

29-50

50/5"

48-50/4"

49-50/5"

50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID=98

S-4PID=350

S-5PID=59

S-6PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:








SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.3

10.0

12.5

15.0

17.5

19.0


TOPSOILSANDY GRAVEL (GP), brown, very dense, moist, no odor

SAND (SP-SM), with silt, brown, very dense, moist, no odor / no sheen

SILTY SAND (SM), gray, very dense, hydrocarbon odor / sheen

SAND (SP-SM), with silt and gravel, brown, very dense, moist, slight hydrocarbon odor / no sheen

SILTY SAND (SM), brown, dense, wet, no odor / no sheen


50/5"

21-42-48N=90

49-50/6"

50/6"

33-42-50N=92

S-1PID<1.0

S-2PID<1.0

S-3PID=125

S-4PID=18

S-5PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:








SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.3

15.0

25.025.4

-Photoionization detector (PID) values in parts-per-million (ppm)-Well ID: BHX-355

1.5" ASPHALTSILTY SAND (SP-SM), with gravel, brown, dense to very dense, moist, no odor / nosheen

SAND (SP-SM), with silt, brown, very dense, saturated, no odor / no sheen

SANDY GRAVEL (GP-GM), with silt, brown, very dense, moist, no odor / no sheenBoring Terminated at 25.4 Feet

19-35-50/4"

17-19-13N=32

29-44-45N=89

50/5"

50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0


bentonite seal

sand

2" slotted pipe

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:




WELL LOG NO. B-8N/MW-4NEmerald Bay Equity, LLCSeattle, Washington




SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


While Drilling


0.3

10.0

15.0

20.020.4


1.0" ASPHALTSANDY GRAVEL (GP), brown, very dense, moist, no odor / no sheen

SILTY GRAVEL (GP-GM), brown, very dense, moist, no odor / no sheen

SAND (SP), brown, very dense, moist-saturated, no odor / no sheen

SILTY GRAVEL (GP-GM), gray, very dense, moist-saturated, no odor / no sheenBoring Terminated at 20.4 Feet

42-44-48N=92

48-50/4"

24-50/4"

50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

022

BO

R L

OG

S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:








SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

3.0

4.0

8.0

11.0

12.0


2.5" concrete slabSANDY GRAVEL (GP), brown, moist, no odor/no sheen

SILTY SAND (SP-SM), with gravel, brown, moist, no odor/no sheen

GRAVEL (GP), with sand, brown, moist, no odor/no sheen

GRAVEL (GP), with sand, gray, moist, no odor/no sheen

SILTY SAND (SP-SM), brown, moist, no odor/no sheen

Refusal at 12 Feet

PID<1.0

PID<1.0

PID<1.0

S-1PID<1.0PID<1.0

S-2PID<1.0

LOCATION

DEPTH


GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1

Advancement Method:Direct Push

Abandonment Method:Borings backfilled with bentonite chips upon completion


Notes:


Drill Rig: AMS Powerprobe 9500 D


BORING LOG NO. B-1SEmerald Bay Equity, LLCSeattle, Washington

Driller: Holocene



Sam

ple

ID

DE

PT

H (

ft)

5

10

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

4.0

10.0


2.5" concrete slabSANDY GRAVEL (GP), gray, moist, no odor/ no sheen

GRAVELLY SILTY SAND (SP-SM), brown, moist, no odor/ no sheen

Refusal at 10 Feet

PID<1.0

PID<1.0

PID<1.0

S-1PID<1.0

S-2PID<1.0

LOCATION

DEPTH


GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: Holocene



Sam

ple

ID

DE

PT

H (

ft)

5

10

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

6.0

11.0


2.5" concrete slabSILTY SAND (SP-SM), with gravel, brown, moist, no odor/ no sheen

GRAVELLY ELASTIC SILT (GP), with sand and silt, brown, moist, no odor/ no sheen

Refusal at 11 Feet

PID<1.0

PID<1.0

PID<1.0

S-1PID<1.0PID<1.0

S-2PID<1.0

LOCATION

DEPTH


GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: Holocene



Sam

ple

ID

DE

PT

H (

ft)

5

10

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

11.5


2.5" concrete slabSANDY GRAVEL (GP), with silt, brown, moist, no odor/ no sheen

Refusal at 11.5 Feet

PID<1.0

PID<1.0

PID<1.0

PID<1.0

S-1PID<1.0

S-2PID<1.0

LOCATION

DEPTH


GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: Holocene



Sam

ple

ID

DE

PT

H (

ft)

5

10

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

2.5

18.5


2" AsphaltSAND (SP-SM), with silt and gravel, dark brown, dense, moist, no sheen, no odor

SAND (SP-SM), with silt and gravel, brown to gray-brown, very dense, moist, no sheen, no odor


3-18-30N=48

12-22-30N=52

22-31-42N=73

N=50/5"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

While Drilling


0.2

2.5

7.5

12.5

13.5


2" AsphaltSAND (SP-SM), with silt and gravel, dark brown, dense, moist, no sheen, no odor

SAND (SP-SM), with silt and gravel, brown to gray-brown, dense, moist, no sheen, no odor

SILTY SAND (SP-SM), with gravel, brown, very dense, moist, no sheen, no odor

SAND (SP-SM), trace silt, brown, very dense, moist, no sheen, no odor


12-11-11N=22

17-28-31N=59

N=50/6"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.2

12.0

18.0


2" AsphaltGRAVELLEY SAND (SP-SM), with silt, dark brown, loose to medium dense, moist, no sheen, no odor (FILL)

SILTY SAND (SP-SM), with gravel, gray, very dense, moist, no sheen, no odor


5-6-5N=11

4-2-3N=5

N=50/6"

N=50/6"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S B

1S-B

7S.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Not Encountered


0.5

12.5

22.5

25.0

-Well ID: BHZ-432-Photoionization detector (PID) values in parts-per-million (ppm)

2" AsphaltPOORLY GRADED SAND WITH SILT (SP-SM), with silt, gray, dense, moist, no sheen,no odor

POORLY GRADED SAND WITH SILT AND GRAVEL (SP-SM), with gravel, trace silt,brown to gray-brown, dense to very dense, moist-to-saturated, no sheen, no odor

SANDY SILT (ML), gray, very stiff, moist, no sheen, no odor


12-20-23N=43

8-12-24N=36

15-14-23N=37

N=50/5"

17-29-45N=74

S-1PID=2.8

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

Concrete andflush monument

Bentonite seal

Sand

2" Slotted pipe

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S M

W1-

MW

3.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:




WELL LOG NO. MW-1SEmerald Bay Equity, LLCSeattle, Washington

Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


While Drilling


0.5

12.5

17.5

25.0


2" AsphaltWELL GRADED SAND WITH SILT AND GRAVEL (SW-SM), trace silt and gravel, brown,very dense, moist, no sheen, no odor

SILTY SAND (SP-SM), grayish brown, dense, moist-to-saturated, no sheen, no odor

SAND (SP-SM), with silt and gravel, brown, very dense, saturated, no sheen, no odor


N=50/6"

21-38-28N=66

20-13-20N=33

N=50/6"

N=50/3"

S-1

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0


Bentonite seal

Sand

2" Slotted pipe

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S M

W1-

MW

3.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


While Drilling


0.5

11.0

30.0


2" AsphaltWELL GRADED SAND WITH SILT AND GRAVEL (SP-SM), with silt, dark brown,medium dense to dense, moist, no sheen, no odor (FILL)

POORLY GRADED SAND WITH SILT AND GRAVEL (SP-SM), with silt and gravel, gray,very dense, moist, no sheen, no odor


6-7-8N=15

17-26-30N=56

N=50/6"

N=50/3"

N=50/2"

N=50/2"

S-1PID<1.0

S-2PID<1.0

S-3PID<1.0

S-4PID<1.0

S-5PID<1.0

S-6PID<1.0


Bentonite seal

Sand

2" Slotted pipe

LOCATION

DEPTH



GR

AP

HIC

LO

G See Figure 2

TH

IS B

OR

ING

LO

G IS

NO

T V

ALI

D IF

SE

PA

RA

TE

D F

RO

M O

RIG

INA

L R

EP

OR

T. E

NV

IRO

NM

EN

TA

L S

MA

RT

LO

G 8

1147

021

BO

RIN

G L

OG

S M

W1-

MW

3.G

PJ

TE

MP

LAT

E U

PD

AT

E 3

-31-

14.G

PJ

5/2

1/14

CLIENT:



Page 1 of 1




Notes:





Driller: EDI



SP

TN

-VA

LU

E

Sam

ple

ID

DE

PT

H (

ft)

5

10

15

20

25

30

WA

TE

R L

EV

EL

OB

SE

RV

AT

ION

S

SA

MP

LE T

YP

E

Well Completion:


Not Encountered


APPENDIX D – ANALYTICAL REPORTS AND CHAIN OF

CUSTODY

FRIEDMAN & BRUYA, INC. _________________________________________________

ENVIRONMENTAL CHEMISTS

James E. Bruya, Ph.D. 3012 16th Avenue West Yelena Aravkina, M.S. Seattle, WA 98119-2029 Michael Erdahl, B.S. (206) 285-8282 Kurt Johnson, B.S. [email protected] Eric Young, B.S. www.friedmanandbruya.com

March 20, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on March 14, 2014 from the 6800 Roosevelt Way NE 81147021, F&BI 403170 project. There are 26 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.

Michael Erdahl Project Manager Enclosures TRC0320R.DOC



1

CASE NARRATIVE This case narrative encompasses samples received on March 14, 2014 by Friedman & Bruya, Inc. from the Terracon 6800 Roosevelt Way NE 81147021, F&BI 403170 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 403170 -01 MW-1,S-1,2.5-3.5 403170 -02 MW-1,S-3,12.5-13.5 403170 -03 MW-2,S-3,13.5-14 403170 -04 MW-2,S-5,22.5-23.5 403170 -05 B-5,S-2,8-9 403170 -06 B-5,S-4,17.5-18.5 403170 -07 B-6,S-1,2.5-3.5 403170 -08 B-6,S-3,12.5-13.5 403170 -09 B-7,S-2,7.5-8 403170 -10 B-7,S-3,12.5-13.5 403170 -11 MW-3,S-2,7.5-8.5 403170 -12 MW-3,S-3,13-14 403170 -13 B-1 S-1@8 403170 -14 B-1 [email protected] 403170 -15 B-2 [email protected] 403170 -16 B-2 [email protected] 403170 -17 B-3 S-1@6 403170 -18 B-3 S-2@10 403170 -19 B-4 S-1@8 403170 -20 B-4 S-2@11 The 8260C calibration standard failed the acceptance criteria for bromomethane. The data were flagged accordingly. All other quality control requirements were acceptable.



2

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021, F&BI 403170 Date Extracted: 03/14/14 Date Analyzed: 03/14/14

RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS GASOLINE

USING METHOD NWTPH-Gx Results Reported on a Dry Weight Basis

Results Reported as mg/kg (ppm)

Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 58-139) B-7,S-2,7.5-8 <2 94 403170-09

B-7,S-3,12.5-13.5 <2 92 403170-10

MW-3,S-2,7.5-8.5 <2 93 403170-11

MW-3,S-3,13-14 <2 93 403170-12

B-1 [email protected] <2 94 403170-14

Method Blank <2 96 04-0516 MB



3


RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE,

XYLENES AND TPH AS GASOLINE USING METHODS 8021B AND NWTPH-Gx

Results Reported on a Dry Weight Basis Results Reported as mg/kg (ppm)

Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-132) MW-1,S-1,2.5-3.5 <0.02 <0.02 <0.02 <0.06 <2 93 403170-01

MW-1,S-3,12.5-13.5 <0.02 <0.02 <0.02 <0.06 <2 90 403170-02

MW-2,S-3,13.5-14 <0.02 <0.02 <0.02 <0.06 <2 93 403170-03

MW-2,S-5,22.5-23.5 <0.02 <0.02 <0.02 <0.06 <2 95 403170-04

B-5,S-2,8-9 <0.02 <0.02 <0.02 <0.06 <2 93 403170-05

B-5,S-4,17.5-18.5 <0.02 <0.02 <0.02 <0.06 <2 93 403170-06

B-6,S-1,2.5-3.5 <0.02 <0.02 <0.02 <0.06 <2 94 403170-07

B-6,S-3,12.5-13.5 <0.02 <0.02 <0.02 <0.06 <2 94 403170-08

Method Blank <0.02 <0.02 <0.02 <0.06 <2 95 04-0516 MB



4


RESULTS FROM THE ANALYSIS OF SOIL SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS

DIESEL AND MOTOR OIL USING METHOD NWTPH-Dx


Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 53-144) MW-1,S-1,2.5-3.5 <50 <250 104 403170-01

MW-1,S-3,12.5-13.5 <50 <250 108 403170-02

MW-2,S-3,13.5-14 <50 <250 106 403170-03

MW-2,S-5,22.5-23.5 <50 <250 104 403170-04

B-5,S-2,8-9 <50 <250 85 403170-05

B-5,S-4,17.5-18.5 <50 <250 83 403170-06

B-6,S-1,2.5-3.5 <50 <250 80 403170-07

B-6,S-3,12.5-13.5 <50 <250 83 403170-08

B-7,S-2,7.5-8 140 x 1,000 79 403170-09

B-7,S-3,12.5-13.5 <50 <250 82 403170-10

MW-3,S-2,7.5-8.5 <50 <250 82 403170-11



5





Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 53-144) MW-3,S-3,13-14 <50 <250 81 403170-12

B-1 S-1@8 <50 <250 81 403170-13

B-1 [email protected] <50 <250 83 403170-14



B-3 S-1@6 <50 <250 85 403170-17

B-3 S-2@10 <50 <250 84 403170-18

B-4 S-1@8 <50 <250 80 403170-19

B-4 S-2@11 <50 <250 82 403170-20

Method Blank <50 <250 103 04-536 MB



6

Analysis For Total Metals By EPA Method 200.8 Client ID: MW-1,S-1,2.5-3.5 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-01 Date Analyzed: 03/14/14 Data File: 403170-01.020 Matrix: Soil Instrument: ICPMS1 Units: mg/kg (ppm) Dry Weight Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 89 60 125 Concentration Analyte: mg/kg (ppm) Lead 1.92



7




8

Analysis For Total Metals By EPA Method 200.8 Client ID: MW-2,S-3,13.5-14 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-03 Date Analyzed: 03/14/14 Data File: 403170-03.022 Matrix: Soil Instrument: ICPMS1 Units: mg/kg (ppm) Dry Weight Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 91 60 125 Concentration Analyte: mg/kg (ppm) Lead 1.73



9




10

Analysis For Total Metals By EPA Method 200.8 Client ID: B-5,S-2,8-9 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-05 Date Analyzed: 03/14/14 Data File: 403170-05.024 Matrix: Soil Instrument: ICPMS1 Units: mg/kg (ppm) Dry Weight Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 91 60 125 Concentration Analyte: mg/kg (ppm) Lead 2.78



11

Analysis For Total Metals By EPA Method 200.8 Client ID: B-5,S-4,17.5-18.5 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-06 Date Analyzed: 03/14/14 Data File: 403170-06.025 Matrix: Soil Instrument: ICPMS1 Units: mg/kg (ppm) Dry Weight Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 90 60 125 Concentration Analyte: mg/kg (ppm) Lead 1.71



12




13




14

Analysis For Total Metals By EPA Method 200.8 Client ID: Method Blank Client: Terracon Date Received: NA Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: I4-161 mb Date Analyzed: 03/14/14 Data File: I4-161 mb.008 Matrix: Soil Instrument: ICPMS1 Units: mg/kg (ppm) Dry Weight Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 100 60 125 Concentration Analyte: mg/kg (ppm) Lead <1



15

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: B-7,S-2,7.5-8 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-09 Date Analyzed: 03/14/14 Data File: 031422.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 100 62 142 Toluene-d8 96 51 121 4-Bromofluorobenzene 98 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



16

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: B-7,S-3,12.5-13.5 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-10 Date Analyzed: 03/14/14 Data File: 031423.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 99 62 142 Toluene-d8 98 51 121 4-Bromofluorobenzene 97 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



17

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: MW-3,S-2,7.5-8.5 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-11 Date Analyzed: 03/14/14 Data File: 031424.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 99 62 142 Toluene-d8 97 51 121 4-Bromofluorobenzene 98 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



18

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: MW-3,S-3,13-14 Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-12 Date Analyzed: 03/14/14 Data File: 031425.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 100 62 142 Toluene-d8 98 51 121 4-Bromofluorobenzene 99 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



19

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: B-1 [email protected] Client: Terracon Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 403170-14 Date Analyzed: 03/14/14 Data File: 031426.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 99 62 142 Toluene-d8 100 51 121 4-Bromofluorobenzene 100 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



20

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: Method Blank Client: Terracon Date Received: NA Project: 6800 Roosevelt Way NE 81147021 Date Extracted: 03/14/14 Lab ID: 04-0507 mb Date Analyzed: 03/14/14 Data File: 031419.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 101 62 142 Toluene-d8 97 51 121 4-Bromofluorobenzene 97 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



21

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021, F&BI 403170 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES

FOR BENZENE, TOLUENE, ETHYLBENZENE, XYLENES, AND TPH AS GASOLINE

USING EPA METHOD 8021B AND NWTPH-Gx Laboratory Code: 403170-01 (Duplicate) Analyte

Reporting Units

Sample Result

(Wet Wt)

Duplicate Result

(Wet Wt)

RPD

(Limit 20) Benzene mg/kg (ppm) <0.02 <0.02 nm Toluene mg/kg (ppm) <0.02 <0.02 nm Ethylbenzene mg/kg (ppm) <0.02 <0.02 nm Xylenes mg/kg (ppm) <0.06 <0.06 nm Gasoline mg/kg (ppm) <2 <2 nm Laboratory Code: Laboratory Control Sample Analyte

Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Benzene mg/kg (ppm) 0.5 74 66-121 Toluene mg/kg (ppm) 0.5 87 72-128 Ethylbenzene mg/kg (ppm) 0.5 89 69-132 Xylenes mg/kg (ppm) 1.5 90 69-131 Gasoline mg/kg (ppm) 20 90 61-153



22

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021, F&BI 403170

QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF SOIL SAMPLES

FOR TOTAL PETROLEUM HYDROCARBONS AS DIESEL EXTENDED USING METHOD NWTPH-Dx

Laboratory Code: 403170-01 (Matrix Spike) Analyte

Reporting

Units

Spike Level

Sample Result

(Wet Wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended mg/kg (ppm) 5,000 <50 100 99 64-133 1 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Diesel Extended mg/kg (ppm) 5,000 98 58-147



23

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6800 Roosevelt Way NE 81147021, F&BI 403170

QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES

FOR TOTAL METALS USING EPA METHOD 200.8 Laboratory Code: 403157-01 (Matrix Spike) Analyte

Reporting

Units

Spike Level

Sample Result

(Wet wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Lead mg/kg (ppm) 50 2.04 105 105 59-148 0 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Lead mg/kg (ppm) 50 100 80-120



24


FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: 403171-08 (Matrix Spike) Analyte

Reporting

Units

Spike Level

Sample Result

(Wet wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Dichlorodifluoromethane mg/kg (ppm) 2.5 <0.5 38 43 10-142 12 Chloromethane mg/kg (ppm) 2.5 <0.5 69 73 10-126 6 Vinyl chloride mg/kg (ppm) 2.5 <0.05 69 74 10-138 7 Bromomethane mg/kg (ppm) 2.5 <0.5 93 93 10-163 0 Chloroethane mg/kg (ppm) 2.5 <0.5 80 85 10-176 6 Trichlorofluoromethane mg/kg (ppm) 2.5 <0.5 76 80 10-176 5 Acetone mg/kg (ppm) 12.5 <0.5 86 87 10-163 1 1,1-Dichloroethene mg/kg (ppm) 2.5 <0.05 75 79 10-160 5 Methylene chloride mg/kg (ppm) 2.5 <0.5 82 83 10-156 1 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 <0.05 89 92 21-145 3 trans-1,2-Dichloroethene mg/kg (ppm) 2.5 <0.05 81 85 14-137 5 1,1-Dichloroethane mg/kg (ppm) 2.5 <0.05 88 91 19-140 3 2,2-Dichloropropan e mg/kg (ppm) 2.5 <0.05 89 89 10-158 0 cis-1,2-Dichloroethene mg/kg (ppm) 2.5 <0.05 86 91 25-135 6 Chloroform mg/kg (ppm) 2.5 <0.05 88 92 21-145 4 2-Butanone (MEK) mg/kg (ppm) 12.5 <0.5 95 98 19-147 3 1,2-Dichloroethane (EDC) mg/kg (ppm) 2.5 <0.05 91 94 12-160 3 1,1,1-Trichloroethane mg/kg (ppm) 2.5 <0.05 88 91 10-156 3 1,1-Dichloropropene mg/kg (ppm) 2.5 <0.05 87 89 17-140 2 Carbon tetrachloride mg/kg (ppm) 2.5 <0.05 89 91 9-164 2 Benzene mg/kg (ppm) 2.5 <0.03 86 89 29-129 3 Trichloroethene mg/kg (ppm) 2.5 <0.03 86 89 21-139 3 1,2-Dichloropropane mg/kg (ppm) 2.5 <0.05 91 93 30-135 2 Bromodichloromethane mg/kg (ppm) 2.5 <0.05 92 94 23-155 2 Dibromomethane mg/kg (ppm) 2.5 <0.05 91 94 23-145 3 4-Methyl -2-pentanone mg/kg (ppm) 12.5 <0.5 92 93 24-155 1 cis-1,3-Dichloropropene mg/kg (ppm) 2.5 <0.05 95 95 28-144 0 Toluene mg/kg (ppm) 2.5 <0.05 88 91 35-130 3 trans-1,3-Dichloropropene mg/kg (ppm) 2.5 <0.05 95 96 26-149 1 1,1,2-Trichloroethane mg/kg (ppm) 2.5 <0.05 92 93 10-205 1 2-Hexanone mg/kg (ppm) 12.5 <0.5 93 92 15-166 1 1,3-Dichloropropane mg/kg (ppm) 2.5 <0.05 93 95 31-137 2 Tetrachloroethene mg/kg (ppm) 2.5 <0.025 88 90 20-133 2 Dibromochloromethane mg/kg (ppm) 2.5 <0.05 99 100 28-150 1 1,2-Dibromoethane (EDB) mg/kg (ppm) 2.5 <0.05 94 95 28-142 1 Chlorobenzene mg/kg (ppm) 2.5 <0.05 89 90 32-129 1 Ethylbenzene mg/kg (ppm) 2.5 <0.05 88 90 32-137 2 1,1,1,2-Tetrachloroethane mg/kg (ppm) 2.5 <0.05 94 99 31-143 5 m,p-Xylene mg/kg (ppm) 5 <0.1 89 91 34-136 2 o-Xylene mg/kg (ppm) 2.5 <0.05 91 94 33-134 3 Styrene mg/kg (ppm) 2.5 <0.05 91 92 35-137 1 Isopropylbenzene mg/kg (ppm) 2.5 <0.05 90 94 31-142 4 Bromoform mg/kg (ppm) 2.5 <0.05 97 96 21-156 1 n-Propylbenzene mg/kg (ppm) 2.5 <0.05 87 90 23-146 3 Bromobenzene mg/kg (ppm) 2.5 <0.05 91 93 34-130 2 1,3,5-Trimethylbenzene mg/kg (ppm) 2.5 <0.05 89 93 18-149 4 1,1,2,2-Tetrachloroethane mg/kg (ppm) 2.5 <0.05 93 95 28-140 2 1,2,3-Trichloropropane mg/kg (ppm) 2.5 <0.05 93 94 25-144 1 2-Chlorotoluene mg/kg (ppm) 2.5 <0.05 88 91 31-134 3 4-Chlorotoluene mg/kg (ppm) 2.5 <0.05 87 89 31-136 2 tert-Butylbenzene mg/kg (ppm) 2.5 <0.05 93 97 30-137 4 1,2,4-Trimethylbenzene mg/kg (ppm) 2.5 <0.05 88 91 10-182 3 sec-Butylbenzene mg/kg (ppm) 2.5 <0.05 90 94 23-145 4 p-Isopropyltoluene mg/kg (ppm) 2.5 <0.05 90 93 21-149 3 1,3-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 90 92 30-131 2 1,4-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 89 91 29-129 2 1,2-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 89 93 31-132 4 1,2-Dibromo-3-chloropropane mg/kg (ppm) 2.5 <0.5 90 91 11-161 1 1,2,4-Trichlorobenzene mg/kg (ppm) 2.5 <0.25 89 93 22-142 4 Hexachlorobutadiene mg/kg (ppm) 2.5 <0.25 93 95 10-142 2 Naphthalene mg/kg (ppm) 2.5 <0.05 87 92 14-157 6 1,2,3-Trichlorobenzene mg/kg (ppm) 2.5 <0.25 86 91 20-144 6



25


FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Dichlorodifluoromethane mg/kg (ppm) 2.5 65 10-146 Chloromethane mg/kg (ppm) 2.5 81 27-133 Vinyl chloride mg/kg (ppm) 2.5 90 22-139 Bromomethane mg/kg (ppm) 2.5 111 38-114 Chloroethane mg/kg (ppm) 2.5 86 10-163 Trichlorofluoromethane mg/kg (ppm) 2.5 93 10-196 Acetone mg/kg (ppm) 12.5 91 52-141 1,1-Dichloroethene mg/kg (ppm) 2.5 86 47-128 Methylene chloride mg/kg (ppm) 2.5 88 42-132 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 95 60-123 trans-1,2-Dichloroethene mg/kg (ppm) 2.5 91 67-127 1,1-Dichloroethane mg/kg (ppm) 2.5 96 68-115 2,2-Dichloropropane mg/kg (ppm) 2.5 96 52-170 cis-1,2-Dichloroethene mg/kg (ppm) 2.5 94 72-113 Chloroform mg/kg (ppm) 2.5 95 66-120 2-Butanone (MEK) mg/kg (ppm) 12.5 103 57-123 1,2-Dichloroethane (EDC) mg/kg (ppm) 2.5 99 56-135 1,1,1-Trichloroethane mg/kg (ppm) 2.5 97 62-131 1,1-Dichloropropene mg/kg (ppm) 2.5 96 69-128 Carbon tetrachloride mg/kg (ppm) 2.5 99 60-139 Benzene mg/kg (ppm) 2.5 94 68-114 Trichloroethene mg/kg (ppm) 2.5 93 64-117 1,2-Dichloropropane mg/kg (ppm) 2.5 97 72-127 Bromodichloromethane mg/kg (ppm) 2.5 99 72-130 Dibromomethane mg/kg (ppm) 2.5 98 70-120 4-Methyl -2-pentanone mg/kg (ppm) 12.5 96 45-145 cis-1,3-Dichloropropene mg/kg (ppm) 2.5 101 75-136 Toluene mg/kg (ppm) 2.5 95 66-126 trans-1,3-Dichloropropene mg/kg (ppm) 2.5 101 72-132 1,1,2-Trichloroethane mg/kg (ppm) 2.5 98 75-113 2-Hexanone mg/kg (ppm) 12.5 95 33-152 1,3-Dichloropropane mg/kg (ppm) 2.5 98 72-130 Tetrachloroethene mg/kg (ppm) 2.5 95 72-114 Dibromochloromethane mg/kg (ppm) 2.5 106 74-125 1,2-Dibromoethane (EDB) mg/kg (ppm) 2.5 99 74-132 Chlorobenzene mg/kg (ppm) 2.5 94 76-111 Ethylbenzene mg/kg (ppm) 2.5 94 64-123 1,1,1,2-Tetrachloroethane mg/kg (ppm) 2.5 103 69-135 m,p-Xylene mg/kg (ppm) 5 95 78-122 o-Xylene mg/kg (ppm) 2.5 97 77-124 Styrene mg/kg (ppm) 2.5 96 74-126 Isopropylbenzene mg/kg (ppm) 2.5 97 76-127 Bromoform mg/kg (ppm) 2.5 102 56-132 n-Propylbenzene mg/kg (ppm) 2.5 94 74-124 Bromobenzene mg/kg (ppm) 2.5 97 72-122 1,3,5-Trimethylbenzene mg/kg (ppm) 2.5 96 76-126 1,1,2,2-Tetrachloroethane mg/kg (ppm) 2.5 98 56-143 1,2,3-Trichloropropane mg/kg (ppm) 2.5 97 61-137 2-Chlorotoluene mg/kg (ppm) 2.5 94 74-121 4-Chlorotoluene mg/kg (ppm) 2.5 93 75-122 tert-Butylbenzene mg/kg (ppm) 2.5 100 73-130 1,2,4-Trimethylbenzene mg/kg (ppm) 2.5 94 76-125 sec-Butylbenzene mg/kg (ppm) 2.5 97 71-130 p-Isopropyltoluene mg/kg (ppm) 2.5 96 70-132 1,3-Dichlorobenzene mg/kg (ppm) 2.5 95 75-121 1,4-Dichlorobenzene mg/kg (ppm) 2.5 94 74-117 1,2-Dichlorobenzene mg/kg (ppm) 2.5 95 76-121 1,2-Dibromo-3-chloropropane mg/kg (ppm) 2.5 94 58-138 1,2,4-Trichlorobenzene mg/kg (ppm) 2.5 95 64-135 Hexachlorobutadiene mg/kg (ppm) 2.5 97 50-153 Naphthalene mg/kg (ppm) 2.5 93 63-140 1,2,3-Trichlorobenzene mg/kg (ppm) 2.5 93 63-138



26

Data Qualifiers & Definitions a - The analyte was detected at a level less than five times the reporting limit. The RPD results may not provide reliable information on the variability of the analysis.

A1 – More than one compound of similar molecule structure was identified with equal probability.

b - The analyte was spiked at a level that was less than five times that present in the sample. Matrix spike recoveries may not be meaningful.

ca - The calibration results for this range fell outside of acceptance criteria. The value reported is an estimate.

c - The presence of the analyte indicated may be due to carryover from previous sample injections.

d - The sample was diluted. Detection limits may be raised due to dilution.

ds - The sample was diluted. Detection limits are raised due to dilution and surrogate recoveries may not be meaningful.

dv - Insufficient sample was available to achieve normal reporting limits and limits are raised accordingly.

fb - Analyte present in the blank and the sample.

fc – The compound is a common laboratory and field contaminant.

hr - The sample and duplicate were reextracted and reanalyzed. RPD results were still outside of control limits. The variability is attributed to sample inhomogeneity.

ht - Analysis performed outside the method or client-specified holding time requirement.

ip - Recovery fell outside of normal control limits. Compounds in the sample matrix interfered with the quantitation of the analyte.

j – The result is below normal reporting limits. The value reported is an estimate.

J - The internal standard associated with the analyte is out of control limits. The reported concentration is an estimate.

jl - The analyte result in the laboratory control sample is out of control limits. The reported concentration should be considered an estimate.

jr - The rpd result in laboratory control sample associated with the analyte is out of control limits. The reported concentration should be considered an estimate.

js - The surrogate associated with the analyte is out of control limits. The reported concentration should be considered an estimate.

lc - The presence of the compound indicated is likely due to laboratory contamination.

L - The reported concentration was generated from a library search.

nm - The analyte was not detected in one or more of the duplicate analyses. Therefore, calculation of the RPD is not applicable.

pc – The sample was received in a container not approved by the method. The value reported should be considered an estimate.

pr – The sample was received with incorrect preservation. The value reported should be considered an estimate.

ve - Estimated concentration calculated for an analyte response above the valid instrument calibration range. A dilution is required to obtain an accurate quantification of the analyte.

vo - The value reported fell outside the control limits established for this analyte.


An

0

ii

0

i\)

0

F

U0

Data File NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport Created on

c : \HpcHeM\6 \DATA\03 - L7 -L4 \OZSFO+01 . Dmwdlcc #64 0 3 L 7 0 - 0 1

l-7 Mar 1,42 0 Mar 1-4

Page Number :Vial Number :Injection Number :Sequence Line :Inst,rument Method:Analysis Met.hod :

0 2 2 3 6 P M1 0 : 3 0 A M

12 5t-4DX. MTHDX. MTH

I0

0l

0

f0

00

Data File Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Report Created on:

c: \HpcsrM\G\DATA\os - J,7 -L4\oz e po+ 01- . Dmwdlcc #64 0 3 L 7 0 - 0 2

1 7 M a r L 4 0 2 2 4 9 P M2 0 M a r T 4 1 0 : 3 1 - A M

Page NumberVial NumberIn ject ion NumberSequence LineInstrument MethodAnalysis Method

l-2 614DX. MTHDX. MTH

An

0

ii

0

ill

0

F

0

Dara F i l e Name : C : \npCHEM\5 \DATA\03 -L7 -14 \027F0401 .DOperator : mwdl Page Number : 1Instrument : GC #6 Vial Number z 27Sample Name : 4031-70-03 In ject ion Number : 1Run Time Bar Code: Seguence Ir ine : 4Acqui red on : l -7 Mar 1-4 03:Ol- PM Inst rument Method: DX.MTHReport Created on: 20 Mar L4 10:31 AM Analys is Method : DX.MTH

A

0

(i

0

t\);U00


c : \HpcHeM\6 \DATA\Og - L7 -L4 \OZeF O+ 01 . DmwdlGC #64 0 3 1 _ 7 0 - 0 4

l-7 Mar L420 Mar L4

Page NumberVial NumberIn ject ion NumberSeguence Linefnst rument Method: DX.MTHAnalys is Method : DX.MTH

12 81=

0 3 : L 3L 0 : 3 2

PMAM

I00

0)

0

pn00


c: \ t tpcttsM\6\DATA\o: - t7 -L4\oz gro+0r . Dmwdlcc #54 0 3 l _ 7 0 - 0 s

1 7 M a r 1 , 4 0 3 : 2 62 0 M a r L 4 1 0 : 3 2

Inst rument Method: DX.MTHAnalys is Method : DX.MTH

Page NumberViaI Numberfnjection NumberSequence L,ine

12 9L4

PMAM

I0

(i

0

i\)

0

P

n0

Data F i le Name :Operator :Instrument ;Sample Name :Run Time Bar Code:Acquired on :Repor t Created on:

c : \HpcHeM\6 \DATA\03 - L7 -L4 \030F040r . . Dmwdlcc #6403]-7 0 - 06

1 7 M a r L 42 0 M a r L 4

0 3 : 3 8 P M1 0 : 3 2 A M


!

3 01_4DX. MTHDX. MTH

I0

0)

0

|\]

0

P

00

Data File Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Repor t Created on:

c : \HPCHEM\6\DATA\os - 17 - 14\03 1F06 01 . Dmwdlcc #64 0 3 1 7 0 - 0 7

L 7 M a r L 4 0 4 : 1 - 62 0 M a r L 4 L 0 2 3 2

PMA]tT


13 116DX . MTHDX . MTH

I0

0l

0

f\]

0

P

;U0

Data F i l e Name : c : \ ueCHEM\6 \DATA\03 - ] -7 -L4 \032F0601- .DOperator : mwdl Page Number : l-Instrument : GC #6 ViaL Number : 32Sample Name : 403170-08 In ject ion Number : 1Run Time Bar Code: Sequence Line : 6Acqui red on : 17 Mar 1,4 04228 PM Inst rument Method: DX.MTHReport , Created on: 20 Mar 1,4 10:32 AM Analys is Method : DX.MTH

I0

L]

0

tu

00


c : \HPCHEM\6\DATA\03 - L7 -L4 \o : : roeor . omwdlcc #54 0 3 1 7 0 - 0 9

1 7 M a r L 4 0 4 2 4 I20 Mar L4 1-0 232

Instrument Met.hod: DX.MTHAnalys is Method : DX.MTH

Page NumberVial NumberInjection NumberSequence Line

13 316

PMAM

A

0

(i

0

[]

0

P

00

Data F i l -e Name : C: \ l tpCHEM\6\DATA\03 -17 - 14\034F060L . DOperator : mwdl Page Number : 1Instrument : GC #6 ViaI Number : 34Samp le Name : 403170-10 In jec t i on Number : IRun Time Bar Code: Sequence Line : 6Acqui red on : 17 Mar 14 04:53 PM Inst rument Method: DX.MTHReport Created on: 20 Mar 14 1-0:32 AIvI Analys is Method : DX.MTH

An

0

ti

0

[]

n0

P

00

Data File NameOperator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Repor t Created on:

c : \Hpci rsM\6\DATA\03 - 1-7 -1,4\OgSFOe Or . OmwdlGC #64 031_70 - r_L

17 Mar 1420 Mar L4

0 5 : 0 6 P M10 :32 A Iv I


13 51_6DX . MTHDX . MTH

In0

IJJ

;

0

l\]00

I I

0


c : \HPCHEM\6\DArA\ 03 - L7 - l -4 \03 5F050 1- . Dmwdlcc #6403t7 0 -L2

Page Number : l-Vial Number : 35In ject ion Number : 1Seguence Line : 6Inst rument Method: DX.MTHAnalys is Method : DX.MTH

17 Mar2 0 M a r

0 5 : 1 81 0 : 3 2

L4L 4

PMAM

A

0

t^)n0

[)

00


c : \HPCHEM\6 \DATA\Or - L7 -L4 \037F0501_ . Dmwdl-cc #54 0 3 L 7 0 - 1 3

l -7 Mar 1 -4 05 :302 0 M a r L 4 L 0 : 3 3

PMAM

Page NumberVial NumberIn ject ion NumberSequence Linefnstrument MethodAnalysis Met,hod

l_3 7L6DX. MTHDX. MTH

A

0

(,^)

n

0

t\)

000

Data F i l e Name : C : \ l t pcHEM\5 \DATA\03 - ] -7 - l - 4 \039F0601 .DOperator : mwdl Page Number : 1fnstrument : GC #6 ViaI Number : 38Sample Name : 403170-L4 In ject ion Number : 1Run Time Bar Code: Sequence Line : 6Acqui red on : 17 Mar L4 05:43 PM Inst rument Method: DX.MTHReport Created on: 20 Mar 1,4 10:33 AM Anal -ys is Method : DX.MTH

In0

(,^l

0

t\)

00


c : \HPCHEM\6 \DATA\03 - L7 -L4 \Og gF OeOr . Omwdlcc #640317 0 - 15

Page NumberViaI NumberIn ject ion NumberSequence LineInst rument Method: DX.MTHAnalys is Method : DX.MTH

13 91o

PMAM

l-7 Mar20 Mar

L 4 0 5 : 5 51 - 4 1 0 : 3 3

I0

ti

0

t\)

00


c : \HPCHEM\6 \DATA\03 - L7 -L4 \040F0501 . Dmwdl-cc #54 0 3 l - 7 0 - 1 6

1-7 Mar t420 Mar L4

0 6 : 0 8 P Ml - 0 : 3 3 A M


14 016DX. MTHDX. MTH

A;

0

tl)t l

0

I\]

0

P

00


c : \HPCHEM\5 \DATA\Og - t 7 -L4 \O+rFOeOr . Omwdlcc #64031,7 0 -L7

1 7 M a r 1 4 0 6 2 2 0 P M2 0 M a r 1 4 1 0 : 3 3 A M

Page NumberVial Numberfnjection NumberSequence LineInstrument MethodAnalysis Method

t_4 L16DX. MTHDX. MTH

A00

tl)

0

f\]

0

F

0


c : \HpcHEM\6\DATA\Og - L7 -1 ,4 \OaZFOeOr . nmwdl-cc #54 0 3 1 _ 7 0 - 1 B

1 7 M a r L 4 0 6 : 3 22 0 M a r L 4 1 0 : 3 3

Page Number : 1Vial Number z 42In ject ion Number : 1Sequence Line : 6Inst rument Method: DX.MTHAnalys is Method : DX.MTH

PMAM

I0

t,ln0

f0

0n0

Data File NameOperatorInstrumentSample NameRun Time Bar CodeAcquired on

c: \HpcHEM\6\DATA\og - 1 ,7 -L4\043F060i . . Dmwdlcc #54 0 3 L 7 0 - ] . 9


l_

4 315DX. MTHDX. MTH

17 Mar20 Mar

0 6 2 4 51 0 : 3 3

PMA}T

L 4t 4Report Created on:

An

0

(,,1n0

i\)n

0n0

Data File Name :Operator :fnstrument :Sample Name :Run Time Bar Code:Acquired on :Report Created on:

c : \upcsnM\5 \DATA\og - L7 -L4 \044F060r_ . DmwdlGC #5403L70-20

Page NumberVial NumberInjection NumberSequence Line

1_4 416

PMAM

L 72 0

M a r 1 4 0 6 : 5 7M a r 1 4 1 0 : 3 3

Inst rument Method: DX.MTHAnaLysis Method : DX.MTH

AO0

ii

0

t\)

00

Data F iLe Name : C : \ l t pcHEM\6 \DATA\03 -L7 -14 \O21F04o j_ .DOperator : mwdl page Number : 1Instrument : GC #5 Vial Number : 2lSample Name : 04-536 mb In ject ion Number : 1Run Time Bar Code: Seguence Line z 4Acqui red on : 17 Mar L4 0L:50 PM Inst rument Method: DX.MTHReport created on: 20 Mar L4 l -0 :30 AM Analys is Method : DX.MTH

Data F i le Name : C: \ t tpcHEM\6\DATA\03 -L7 - l_4\oo3Fo3o1 . DOperator : mwdl page Number : LInstrument : GC #6 Vial Number : 3sample Name : 500 Dx 42-278 rnjection Number : l-Run Time Bar Code: Sequence Line : 3Acqui red on : 17 Mar 1,4 09:48 AM Inst rument Method: DX.MTHRepor t C rea ted on : 20 Mar L4 10 :30 AM Ana lys i s Me thod : DX .MTH

o

l$gINt .$

Flc\

FN.t

IFt3II

oFa

FN

L"\Kt -

ItI Ft \I t

t':lt L l

I It \It

+rNl.sbFtl^

g

o+

Itilil{rt : .

lilllhltgr\I

x+

l '-I r '

; - €

lrntXr r

q$i

-l9rI

(N

\,t\tN

I

t/oN

srI

;r'(AIN{lN

I

ss

NIs

CÎ

*\!h,

N.i

IA

;'t

N$t

il

i\)

NI

\

lt\-

Ss

$uI

c\-+lN

Is

S3

"$tY)ilo"

I-,s

:€i

J'JthI

TN+-N

'J\-.

s€t

l.)hI

-$

.$

!c

\es0Î

sNN

$s{wr;-

\FJ-i4i

FifIR'

$

v)F)

o

e.E..(\

3>(\\

q>o rlt R s .

lq-,1

F

F

a,

E-U.\

5\o{

Fd

F 9 '

(N

{u3 b

rltI

FiI

-c

O

=l \J

d o

-\sU

b.i\\

FJ

LiOe

N

I,\l[r

s\-t.(t

$w0\

sr!Nr

sshH

U)H =

! 5d ( D

\f0

(,A'

oFl

o

s 91q- s- G- s- o\

s. oc)

P r t9:. o=, til

oo

X, X x ><X ><>< TPH-Diesel

zFk(t(n

X ><X >< >< x X x >< TPH.Gasoline

X X x x v X x BTEX bv 80218

X X VOCs bv8260

SVOCs by 8270

HFS

X ><x ><X X X 2( Fb-eeazdbu

v

sr..l

l:tt lx"\,T"

l . ,rr.*t$r t P

I I\

I-\

I

I-\

I(/|df^,

:l

v{

F

3;Ul v 0

Lgt\ xi ttfi ot

B$l\,xIof

zo

Frd<nd

\A

F&$tN

c'EBgbi;

ffi$tF

a

l-

aV1

OOsssN

t r t rF

3gEs 5 iH o ( D

s H F "s g Ei ' u tH rx <x a

tr

u)

trv)

.i

,^'N

#r( D :, f la l

a

c)

noatao

-No

X \ t V 7 b \E E' S R PI :F - - . ' r $ N R2 N N S- * .$u d . d : $ s9 \ - : S S sH N X G 5 h11 U d . R SVS R H E i S

s 8-s\ o q ( 1

Foo

o

o

a

o

x

\

g(}

' d

$NN

b -F

ea()

0

e-

FtrJ

\\

\\

Nr

F2tl

z

l

:r

Nilit

I

o

Fz

fiG

c!F sws

\

E

tIi

\

\\}

os0

FJ

a(D

o

j

ls

oF

lsl y 't \I P

f,-DEt \t f

glsl $l al t lI t

ItIT

lfl E

Ihl-'l ol bI

o{t

+tI t\)l'll lt.Fl {I t

I t lI t ,t 9t\lrrx

U)

rEF(!

oFItsl

-zA

EJ

ot1(ad,A-V

Fq\^J

\

s:s

l \ 9I N €o !,* ti'

l*,\I

o

v)AtJDN

aI

{

sTlN.h*,

ItRilTs

\

\

d"c/!

&*,NI\Dtr!.t-

v)

o

p;

.f w - a

s bo

Ra

= o( u

h\r-s

I,lvQD

v)s r

€ dd o

t(-h$Qp

lo

o

o

o 0"c)

= { t

= + )oIa

TPH-Diesel

P2

t-C'

u

X TPH-Gasoline

BTEX bv 80218

X x VOCs by8260

SVOCs bv 8270

HFS

c

v2-l

(

I*-l

hl- f

NIer

{DIU

zo@

vl rJ

FP\V)

0\S

tl lb l

ilt i

$ lfl

ot$0v

rt$t$t

a

r

a

Oa:ssR

t r t rF3 d FH E Eo 5 0* ; 6= H $s 9 E= ' 8 qa v4 *

E ;6'ila

o

o

noaoa

F9

aNo

E F s $ H*.F - s f N i I

a N H I s$.B i i s s :F r r E $$S R H N i S

N 3 - S\ o c a F

iloo

o

Fo

oq

x

\

7, ooI

Iq

:q

$Nc\S

I

d

3r.3

NSN

\

(t)

EEF

\

\

\ $FzE

z

F]

\

I3Eoo:

vitl

o

Fz

s,dt

orl!)

I

si-

h)\s\-

E

Ic

\

b

$&$.\t,

-l

(Ao

F(D

' 9 l t \

^ l -

l ' t { ' l , r r , r

t ) r r \

I ' l v

o

filbF6l o

l r tl oI F

l r Fl>l"'I

l zIIIIIt lt l

otsu)

"d',\ ] :

t9lLIt-

f!

J.tS.\

a

c\

o+l.rI V1 " 1t Jl Jt;| \rJ

lg-T'

x:E

E $ s $ H*.F { r Fi t'.jRe^ N N "F* *-$a d . d : $ S9 v : S S SI U i l : > hP t s ? F F Ux \ 4 9 e l - F Y6 R U G N Q

* q N N 5 FN 8 - S\ o q o

o

sT

YFFJ

'x

lJ"Its, , f

dIs-

\Lv

.'3

ot

-D\nI

caoo.

-v)Iv-lo

l

Pe

a

dirrv.

Q

s)a

6JIp

\Îe

J.A

w-,

\n\l"e=n

LtvA{

('@

a

o

v)

o

o

SVOCs by 8270

Frt

X(t')

l * FI e 9

O l nl.

rsll

* E+ax=+dg )

V)

tu-l r l

V)Vj

OassdnX

ot+lH

FIzAvdt

ot4

oHA

sq,I

€I

:t)\ -r-

{t

F)(XI.o

Ya'E !o lo :p lF l ro tH I

t !* !E S

t r tr1 Fo t rA t , '= o

{ Ha'or 6 -= ' o

I

c)

o

z dfr,6 F-aF i < f

gfrFFq ! I + zU I C Pel # gE l * zN l v v

o t ia . l F iq l- l t r l

II




March 25, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on March 19, 2014 from the 81147021 6800 Roosevelt, F&BI 403254 project. There are 9 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.




1

CASE NARRATIVE This case narrative encompasses samples received on March 19, 2014 by Friedman & Bruya, Inc. from the Terracon 81147021 6800 Roosevelt, F&BI 403254 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 403254 -01 MW-2 All quality control requirements were acceptable.



2

Date of Report: 03/25/14 Date Received: 03/19/14 Project: 81147021 6800 Roosevelt, F&BI 403254 Date Extracted: 03/20/14 Date Analyzed: 03/20/14

RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE,


Results Reported as ug/L (ppb) Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-150) MW-2 <1 <1 <1 <3 <100 85 403254-01

Method Blank <1 <1 <1 <3 <100 84 04-0524 MB



3


RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS

DIESEL AND MOTOR OIL USING METHOD NWTPH-Dx Results Reported as ug/L (ppb)

Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 51-134) MW-2 <50 <250 86 403254-01 Method Blank <50 <250 82 04-576 MB



4

Analysis For Total Metals By EPA Method 200.8 Client ID: MW-2 Client: Terracon Date Received: 03/19/14 Project: 81147021, F&BI 403254 Date Extracted: 03/21/14 Lab ID: 403254-01 Date Analyzed: 03/21/14 Data File: 403254-01.014 Matrix: Water Instrument: ICPMS1 Units: ug/L (ppb) Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 101 60 125 Concentration Analyte: ug/L (ppb) Lead <1



5

Analysis For Total Metals By EPA Method 200.8 Client ID: Method Blank Client: Terracon Date Received: Not Applicable Project: 81147021, F&BI 403254 Date Extracted: 03/21/14 Lab ID: I4-175 mb Date Analyzed: 03/21/14 Data File: I4-175 mb.008 Matrix: Water Instrument: ICPMS1 Units: ug/L (ppb) Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 94 60 125 Concentration Analyte: ug/L (ppb) Lead <1



6

Date of Report: 03/25/14 Date Received: 03/19/14 Project: 81147021 6800 Roosevelt, F&BI 403254

QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE,

XYLENES, AND TPH AS GASOLINE USING EPA METHOD 8021B AND NWTPH-Gx

Laboratory Code: 403250-01 (Duplicate) Analyte

Reporting Units

Sample Result

Duplicate Result

RPD (Limit 20)

Benzene ug/L (ppb) <1 <1 nm Toluene ug/L (ppb) <1 <1 nm Ethylbenzene ug/L (ppb) <1 <1 nm Xylenes ug/L (ppb) <3 <3 nm Gasoline ug/L (ppb) <100 <100 nm Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Benzene ug/L (ppb) 50 95 72-119 Toluene ug/L (ppb) 50 97 71-113 Ethylbenzene ug/L (ppb) 50 101 72-114 Xylenes ug/L (ppb) 150 88 72-113 Gasoline ug/L (ppb) 1,000 104 70-119



7


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS

DIESEL EXTENDED USING METHOD NWTPH-Dx Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Percent Recovery

LCSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended ug/L (ppb) 2,500 86 84 58-134 2



8


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES


Reporting

Units

Spike Level

Sample Result

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Lead ug/L (ppb) 10 <1.00 97 99 79-121 2 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Lead ug/L (ppb) 10 101 83-115



9



























I0

til;

0

l0

0

P

n0

Dat,a Fi le Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Report Created on:

c : \HpcHEM\6\DATA\ Og -Z 0 - 1_4 \ OreFOeOr . Omwdlcc #6403254 - 0 t_

2 0 M a r 1 4 0 4 : 5 2 P M24 Mar L4 72255 PM

Page Number :ViaI Number :In ject ion Number :Sequence Line :fnstrument Method:Analysis Method :

1_L 616DX . MTHDX. MTH

I0

t^l

0

f\]

00

Data Fil-e Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Report Created on:

c : \HpcHEM\5\DArA\Og - 20-L4 \Or r rOeOr . Omwdlcc #60 4 - 5 7 6 m b

2 0 M a r L 4 0 3 : 5 4 P M2 4 M a r 1 4 1 2 : 5 5 P M

Page Number :ViaL Number :Injectlon Number :Sequence Line :Instrument Method:Analysis Method :

11 1l-6DX. MTHDX. MTH

Data FiLe NameOperatorfnstrumentSample NameRun Time Bar CodeAcquired onReport Created on

c: \HpcHEM\G\DATA\os - 20 - t4\oorrozo j_ . Dmwdl-cc #6500 Dx 42 -278

2 0 M a r 1 4 l - 0 : 5 52 4 M a r 1 4 1 2 : 5 5

Page NumberViaI NumberInjection NumberSequence lrj-nefnst rument Method: DX.MTHAnalys is Method : DX.MTH

13l-2

AIVTPM

as\tu

l,ttf-e

CAoEo

oooo8IF-)s\[^S.'-q

B+.Fs$il-\\

o

V2

o

NF0

FU

oo+

u)

3H

Y

FFI

X+

=

I9r

QF'B

E6'U

?c

t- u t :w\s_ F .

(Ap -I \ , ,

! =d o

P6.-\

aP r-rFl xt

E I Jd ( !

${

v)

EoFl

Eo

bo

P +B . oEl Eroa

x. TPH-Diesel

F2

t-xuu

>< TPH-Gasoline

BTEX bv 80218

VOCs by8260

SVOCs bv 8270

HFS

X L.-Aa

TIccrl:(4-:

l]

B*

B zoo

Frd

FXU)

N X= HN 2' : E

qz

\9ta

>R\ \lcs,its

V)

F0

EFu)V2

oaSssd

\

NN\

rl

oFIFI

lrlzoEot4V)FiA

llv

\

o

FU

:+F

\nt r t r t r3 d F

sEEFe-FEA F

EFEFH, zG P# qE E

H

EI

Fo

oFt6oaoo

A'F

5No

(t

[ \

!\N

0i

E $ S S H TF i - $ r . iR4 N S F : SE s { . S SSG , , . N N r D \ r l

E F F E g SH F $ s i i\ o * F

Fooo

o

d

7oFaoaItoo

t\

\

\

o

EooAq

:i

KN\

Nt -\

U)ozFt

Flrt

l

\\

N-_s\a

v\NFfr-0

t

Fz-lz3lI:

N\ $I

\

ogFz

\ SS

UF:l

fit

\} vs.l

rd




March 20, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on March 14, 2014 from the 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 project. There are 12 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.




1

CASE NARRATIVE This case narrative encompasses samples received on March 14, 2014 by Friedman & Bruya, Inc. from the Terracon 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 403171 -01 MW-1,S-3,12.5-13.5 403171 -02 MW-1,S-4,17.5-18.5 403171 -03 MW-1,S-5,22.5-23 403171 -04 MW-1,S-6,27.5-28 403171 -05 B-1,S-2,8.5-9 403171 -06 B-1,S-3,12.5-13.5 403171 -07 B-1,S-4,18-19 403171 -08 MW-2,S-2,8-9 403171 -09 MW-2,S-5,22.5-23.5 403171 -10 MW-2,S-4,17.5-18.5 The 8260C calibration standard failed the acceptance criteria for bromomethane. The data were flagged accordingly. All other quality control requirements were acceptable.



2

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 Date Extracted: 03/17/14 Date Analyzed: 03/17/14




Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 58-139) MW-2,S-2,8-9 6.8 92 403171-08 MW-2,S-5,22.5-23.5 <2 94 403171-09




3

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 Date Extracted: 03/17/14 Date Analyzed: 03/17/14 and 03/19/14




Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-132) MW-1,S-3,12.5-13.5 <0.02 <0.02 0.091 0.51 130 96 403171-01

MW-1,S-4,17.5-18.5 <0.02 <0.02 0.13 0.45 120 95 403171-02

MW-1,S-5,22.5-23 <0.02 <0.02 <0.02 <0.06 7.8 89 403171-03

MW-1,S-6,27.5-28 <0.02 <0.02 <0.02 <0.06 16 91 403171-04

B-1,S-2,8.5-9 <0.02 <0.02 <0.02 4.5 410 ip 403171-05

B-1,S-3,12.5-13.5 0.060 0.63 2.2 9.4 570 ip 403171-06 B-1,S-4,18-19 <0.02 <0.02 <0.02 <0.06 <2 89 403171-07

Method Blank <0.02 <0.02 <0.02 <0.06 <2 90 04-0517 MB



4

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 Date Extracted: 03/14/14 Date Analyzed: 03/14/14 and 03/17/14




Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 48-168) MW-1,S-3,12.5-13.5 1,100 <250 119 403171-01

MW-1,S-4,17.5-18.5 60 <250 114 403171-02

MW-1,S-5,22.5-23 <50 <250 98 403171-03

MW-1,S-6,27.5-28 <50 <250 100 403171-04

B-1,S-2,8.5-9 3,100 <250 99 403171-05

B-1,S-3,12.5-13.5 25,000 400 x 135 403171-06

B-1,S-4,18-19 71 x <250 116 403171-07

MW-2,S-2,8-9 <50 <250 119 403171-08

MW-2,S-5,22.5-23.5 <50 <250 102 403171-09 Method Blank <50 <250 114 04-533 MB



5

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: MW-2,S-2,8-9 Client: Terracon Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022 Date Extracted: 03/14/14 Lab ID: 403171-08 Date Analyzed: 03/14/14 Data File: 031420.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 100 62 142 Toluene-d8 97 51 121 4-Bromofluorobenzene 98 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



6

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: MW-2,S-5,22.5-23.5 Client: Terracon Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022 Date Extracted: 03/14/14 Lab ID: 403171-09 Date Analyzed: 03/14/14 Data File: 031421.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 99 62 142 Toluene-d8 99 51 121 4-Bromofluorobenzene 99 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



7

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: Method Blank Client: Terracon Date Received: NA Project: 6814-6820 Roosevelt Way NE 81147022 Date Extracted: 03/14/14 Lab ID: 04-0507 mb Date Analyzed: 03/14/14 Data File: 031419.D Matrix: Soil Instrument: GCMS4 Units: mg/kg (ppm) Dry Weight Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 101 62 142 Toluene-d8 97 51 121 4-Bromofluorobenzene 97 32 146 Concentration Concentration Compounds: mg/kg (ppm) Compounds: mg/kg (ppm) Dichlorodifluoromethane <0.5 1,3-Dichloropropane <0.05 Chloromethane <0.5 Tetrachloroethene <0.025 Vinyl chloride <0.05 Dibromochloromethane <0.05 Bromomethane <0.5 ca 1,2-Dibromoethane (EDB) <0.05 Chloroethane <0.5 Chlorobenzene <0.05 Trichlorofluoromethane <0.5 Ethylbenzene <0.05 Acetone <0.5 1,1,1,2-Tetrachloroethane <0.05 1,1-Dichloroethene <0.05 m,p-Xylene <0.1 Methylene chloride <0.5 o-Xylene <0.05 Methyl t-butyl ether (MTBE) <0.05 Styrene <0.05 trans-1,2-Dichloroethene <0.05 Isopropylbenzene <0.05 1,1-Dichloroethane <0.05 Bromoform <0.05 2,2-Dichloropropane <0.05 n-Propylbenzene <0.05 cis-1,2-Dichloroethene <0.05 Bromobenzene <0.05 Chloroform <0.05 1,3,5-Trimethylbenzene <0.05 2-Butanone (MEK) <0.5 1,1,2,2-Tetrachloroethane <0.05 1,2-Dichloroethane (EDC) <0.05 1,2,3-Trichloropropane <0.05 1,1,1-Trichloroethane <0.05 2-Chlorotoluene <0.05 1,1-Dichloropropene <0.05 4-Chlorotoluene <0.05 Carbon tetrachloride <0.05 tert-Butylbenzene <0.05 Benzene <0.03 1,2,4-Trimethylbenzene <0.05 Trichloroethene <0.03 sec-Butylbenzene <0.05 1,2-Dichloropropane <0.05 p-Isopropyltoluene <0.05 Bromodichloromethane <0.05 1,3-Dichlorobenzene <0.05 Dibromomethane <0.05 1,4-Dichlorobenzene <0.05 4-Methyl-2-pentanone <0.5 1,2-Dichlorobenzene <0.05 cis-1,3-Dichloropropene <0.05 1,2-Dibromo-3-chloropropane <0.5 Toluene <0.05 1,2,4-Trichlorobenzene <0.25 trans-1,3-Dichloropropene <0.05 Hexachlorobutadiene <0.25 1,1,2-Trichloroethane <0.05 Naphthalene <0.05 2-Hexanone <0.5 1,2,3-Trichlorobenzene <0.25



8

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022, F&BI 403171 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES


USING METHOD 8021B AND NWTPH-Gx Laboratory Code: 403190-02 (Duplicate) Analyte

Reporting Units

Sample Result

(Wet Wt)

Duplicate Result

(Wet Wt)

RPD


Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance




9

Date of Report: 03/20/14 Date Received: 03/14/14 Project: 6814-6820 Roosevelt Way NE 81147022, F&BI 403171




Reporting

Units

Spike Level

Sample Result

(Wet Wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended mg/kg (ppm) 5,000 52 105 103 73-135 2 Laboratory Code: Laboratory Control Sample Analyte

Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance




10


FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: 403171-08 (Matrix Spike) Analyte

Reporting

Units

Spike Level

Sample Result

(Wet wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Dichlorodifluoromethane mg/kg (ppm) 2.5 <0.5 38 43 10-142 12 Chloromethane mg/kg (ppm) 2.5 <0.5 69 73 10-126 6 Vinyl chloride mg/kg (ppm) 2.5 <0.05 69 74 10-138 7 Bromomethane mg/kg (ppm) 2.5 <0.5 93 93 10-163 0 Chloroethane mg/kg (ppm) 2.5 <0.5 80 85 10-176 6 Trichlorofluoromethane mg/kg (ppm) 2.5 <0.5 76 80 10-176 5 Acetone mg/kg (ppm) 12.5 <0.5 86 87 10-163 1 1,1-Dichloroethene mg/kg (ppm) 2.5 <0.05 75 79 10-160 5 Methylene chloride mg/kg (ppm) 2.5 <0.5 82 83 10-156 1 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 <0.05 89 92 21-145 3 trans-1,2-Dichloroethene mg/kg (ppm) 2.5 <0.05 81 85 14-137 5 1,1-Dichloroethane mg/kg (ppm) 2.5 <0.05 88 91 19-140 3 2,2-Dichloropropane mg/kg (ppm) 2.5 <0.05 89 89 10-158 0 cis-1,2-Dichloroethene mg/kg (ppm) 2.5 <0.05 86 91 25-135 6 Chloroform mg/kg (ppm) 2.5 <0.05 88 92 21-145 4 2-Butanone (MEK) mg/kg (ppm) 12.5 <0.5 95 98 19-147 3 1,2-Dichloroethane (EDC) mg/kg (ppm) 2.5 <0.05 91 94 12-160 3 1,1,1-Trichloroethane mg/kg (ppm) 2.5 <0.05 88 91 10-156 3 1,1-Dichloropropene mg/kg (ppm) 2.5 <0.05 87 89 17-140 2 Carbon tetrachloride mg/kg (ppm) 2.5 <0.05 89 91 9-164 2 Benzene mg/kg (ppm) 2.5 <0.03 86 89 29-129 3 Trichloroethene mg/kg (ppm) 2.5 <0.03 86 89 21-139 3 1,2-Dichloropropane mg/kg (ppm) 2.5 <0.05 91 93 30-135 2 Bromodichloromethane mg/kg (ppm) 2.5 <0.05 92 94 23-155 2 Dibromomethane mg/kg (ppm) 2.5 <0.05 91 94 23-145 3 4-Methyl -2-pentanone mg/kg (ppm) 12.5 <0.5 92 93 24-155 1 cis-1,3-Dichloropropene mg/kg (ppm) 2.5 <0.05 95 95 28-144 0 Toluene mg/kg (ppm) 2.5 <0.05 88 91 35-130 3 trans-1,3-Dichloropropene mg/kg (ppm) 2.5 <0.05 95 96 26-149 1 1,1,2-Trichloroethane mg/kg (ppm) 2.5 <0.05 92 93 10-205 1 2-Hexanone mg/kg (ppm) 12.5 <0.5 93 92 15-166 1 1,3-Dichloropropane mg/kg (ppm) 2.5 <0.05 93 95 31-137 2 Tetrachloroethene mg/kg (ppm) 2.5 <0.025 88 90 20-133 2 Dibromochloromethane mg/kg (ppm) 2.5 <0.05 99 100 28-150 1 1,2-Dibromoethane (EDB) mg/kg (ppm) 2.5 <0.05 94 95 28-142 1 Chlorobenzene mg/kg (ppm) 2.5 <0.05 89 90 32-129 1 Ethylbenzene mg/kg (ppm) 2.5 <0.05 88 90 32-137 2 1,1,1,2-Tetrachloroethane mg/kg (ppm) 2.5 <0.05 94 99 31-143 5 m,p-Xylene mg/kg (ppm) 5 <0.1 89 91 34-136 2 o-Xylene mg/kg (ppm) 2.5 <0.05 91 94 33-134 3 Styrene mg/kg (ppm) 2.5 <0.05 91 92 35-137 1 Isopropylbenzene mg/kg (ppm) 2.5 <0.05 90 94 31-142 4 Bromoform mg/kg (ppm) 2.5 <0.05 97 96 21-156 1 n-Propylbenzene mg/kg (ppm) 2.5 <0.05 87 90 23-146 3 Bromobenzene mg/kg (ppm) 2.5 <0.05 91 93 34-130 2 1,3,5-Trimethylbenzene mg/kg (ppm) 2.5 <0.05 89 93 18-149 4 1,1,2,2-Tetrachloroethane mg/kg (ppm) 2.5 <0.05 93 95 28-140 2 1,2,3-Trichloropropane mg/kg (ppm) 2.5 <0.05 93 94 25-144 1 2-Chlorotoluene mg/kg (ppm) 2.5 <0.05 88 91 31-134 3 4-Chlorotoluene mg/kg (ppm) 2.5 <0.05 87 89 31-136 2 tert-Butylbenzene mg/kg (ppm) 2.5 <0.05 93 97 30-137 4 1,2,4-Trimethylbenzene mg/kg (ppm) 2.5 <0.05 88 91 10-182 3 sec-Butylbenzene mg/kg (ppm) 2.5 <0.05 90 94 23-145 4 p-Isopropyltoluene mg/kg (ppm) 2.5 <0.05 90 93 21-149 3 1,3-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 90 92 30-131 2 1,4-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 89 91 29-129 2 1,2-Dichlorobenzene mg/kg (ppm) 2.5 <0.05 89 93 31-132 4 1,2-Dibromo-3-chloropropane mg/kg (ppm) 2.5 <0.5 90 91 11-161 1 1,2,4-Trichlorobenzene mg/kg (ppm) 2.5 <0.25 89 93 22-142 4 Hexachlorobutadiene mg/kg (ppm) 2.5 <0.25 93 95 10-142 2 Naphthalene mg/kg (ppm) 2.5 <0.05 87 92 14-157 6 1,2,3-Trichlorobenzene mg/kg (ppm) 2.5 <0.25 86 91 20-144 6



11


FOR VOLATILES BY EPA METHOD 8260C Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Dichlorodifluoromethane mg/kg (ppm) 2.5 65 10-146 Chloromethane mg/kg (ppm) 2.5 81 27-133 Vinyl chloride mg/kg (ppm) 2.5 90 22-139 Bromomethane mg/kg (ppm) 2.5 111 38-114 Chloroethane mg/kg (ppm) 2.5 86 10-163 Trichlorofluoromethane mg/kg (ppm) 2.5 93 10-196 Acetone mg/kg (ppm) 12.5 91 52-141 1,1-Dichloroethene mg/kg (ppm) 2.5 86 47-128 Methylene chloride mg/kg (ppm) 2.5 88 42-132 Methyl t-butyl ether (MTBE) mg/kg (ppm) 2.5 95 60-123 trans-1,2-Dichloroethene mg/kg (ppm) 2.5 91 67-127 1,1-Dichloroethane mg/kg (ppm) 2.5 96 68-115 2,2-Dichloropropane mg/kg (ppm) 2.5 96 52-170 cis-1,2-Dichloroethene mg/kg (ppm) 2.5 94 72-113 Chloroform mg/kg (ppm) 2.5 95 66-120 2-Butanone (MEK) mg/kg (ppm) 12.5 103 57-123 1,2-Dichloroethane (EDC) mg/kg (ppm) 2.5 99 56-135 1,1,1-Trichloroethane mg/kg (ppm) 2.5 97 62-131 1,1-Dichloropropene mg/kg (ppm) 2.5 96 69-128 Carbon tetrachloride mg/kg (ppm) 2.5 99 60-139 Benzene mg/kg (ppm) 2.5 94 68-114 Trichloroethene mg/kg (ppm) 2.5 93 64-117 1,2-Dichloropropane mg/kg (ppm) 2.5 97 72-127 Bromodichloromethane mg/kg (ppm) 2.5 99 72-130 Dibromomethane mg/kg (ppm) 2.5 98 70-120 4-Methyl -2-pentanone mg/kg (ppm) 12.5 96 45-145 cis-1,3-Dichloropropene mg/kg (ppm) 2.5 101 75-136 Toluene mg/kg (ppm) 2.5 95 66-126 trans-1,3-Dichloropropene mg/kg (ppm) 2.5 101 72-132 1,1,2-Trichloroethane mg/kg (ppm) 2.5 98 75-113 2-Hexanone mg/kg (ppm) 12.5 95 33-152 1,3-Dichloropropane mg/kg (ppm) 2.5 98 72-130 Tetrachloroethene mg/kg (ppm) 2.5 95 72-114 Dibromochloromethane mg/kg (ppm) 2.5 106 74-125 1,2-Dibromoethane (EDB) mg/kg (ppm) 2.5 99 74-132 Chlorobenzene mg/kg (ppm) 2.5 94 76-111 Ethylbenzene mg/kg (ppm) 2.5 94 64-123 1,1,1,2-Tetrachloroethane mg/kg (ppm) 2.5 103 69-135 m,p-Xylene mg/kg (ppm) 5 95 78-122 o-Xylene mg/kg (ppm) 2.5 97 77-124 Styrene mg/kg (ppm) 2.5 96 74-126 Isopropylbenzene mg/kg (ppm) 2.5 97 76-127 Bromoform mg/kg (ppm) 2.5 102 56-132 n-Propylbenzene mg/kg (ppm) 2.5 94 74-124 Bromobenzene mg/kg (ppm) 2.5 97 72-122 1,3,5-Trimethylbenzene mg/kg (ppm) 2.5 96 76-126 1,1,2,2-Tetrachloroethane mg/kg (ppm) 2.5 98 56-143 1,2,3-Trichloropropane mg/kg (ppm) 2.5 97 61-137 2-Chlorotoluene mg/kg (ppm) 2.5 94 74-121 4-Chlorotoluene mg/kg (ppm) 2.5 93 75-122 tert-Butylbenzene mg/kg (ppm) 2.5 100 73-130 1,2,4-Trimethylbenzene mg/kg (ppm) 2.5 94 76-125 sec-Butylbenzene mg/kg (ppm) 2.5 97 71-130 p-Isopropyltoluene mg/kg (ppm) 2.5 96 70-132 1,3-Dichlorobenzene mg/kg (ppm) 2.5 95 75-121 1,4-Dichlorobenzene mg/kg (ppm) 2.5 94 74-117 1,2-Dichlorobenzene mg/kg (ppm) 2.5 95 76-121 1,2-Dibromo-3-chloropropane mg/kg (ppm) 2.5 94 58-138 1,2,4-Trichlorobenzene mg/kg (ppm) 2.5 95 64-135 Hexachlorobutadiene mg/kg (ppm) 2.5 97 50-153 Naphthalene mg/kg (ppm) 2.5 93 63-140 1,2,3-Trichlorobenzene mg/kg (ppm) 2.5 93 63-138



12



























CIn0

0n0

An0

ti00

Na0

00

Data F i Ie NameOperatorInst.rumentSample NameRun Time Bar CodeAcquired onReport Created on

mwdlcc#44 0 3 1 7 1 - 0 1

L4 Mar17 Mar

Page NumberViaI NumberIn ject ion NumberSequence LineInstrument MethodAnalysis Method

DX. MTHBAKEOUT. MTH

c : \ l r pcHeM\4 \DATA\03 - L4 -L4 \O : gFOs01 . D1!

3 915

L4L 4

0 4 : 5 10 9 : 4 1

PMAM

P I \ ) I \ )

0 0 f 00 0 0

P P

A 0 )0 00

A l N / \ r h( V I P U J d

A n n n\J \J \-/ \-/

A n n n\./ \./ \./ \-/n n n nv v v v

Dat.a Fi le NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport. Created on

c: \HpcHEM\4\DATA\03 - r -4 - r -4 \040F0s01- . Dmwdlcc#4403L7L-02

1 4 M a r 1 4 0 5 : 0 4l -7 Mar L4 09 : 41

PMAM

Page Number :Vial Number :In ject ion Number :Sequence Line :Instrument MeLhod:Anal-ysis Method :

14 015DX. MTHBAKEOUT. MTH

A

0)

Data F i le NameOperatorInstrumentSample NameRun Ti-me Bar CodeAcquired onReport Created on

F - , I \ ] N

m 0 N0 0 r 0

P P H

f 0 A 0 )0 0 0

\1 N a ftrt U * A U J wn n a \ n\./ \./ \./ \./n n n n\-/ \J \-/ \-i

n n ^ n\-/ \./ \-/ \-/

c : \HpcHBM\4 \DATA\og - L4 - r4 \041F0s01 . DmwdlGC#4403L7 1 - 03

14 Mar 1417 Mar 14

0 5 : 1 70 9 : 4 1


DX. MTHBAKEOUT. MTH

1-4 T15

PMAIVI

F . ' l 0 l 0

m 0 N0 0 0

P P P P

0 f 0 4 0 )0 0 0 0

I \ 1 N A \ r nt v t r v J wA n n n\J \J \.,i \J

n n n n\J \J \J \./

n n n nv v v v

Data F i le Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Repor t . Created on:

c : \HpcHEM\4\DArA\03 - : -4- ] .4 \042F0s0r- . DmwdLGC#4403L7r -04

L4 Mar L417 Mar L4

0 5 : 3 00 9 z 4 L

PMAM

Page NumberVial NumberIn ject ion NumberSequence LineInstrument MethodAnalysis Met,hod

1+ z15DX. MTHBAKEOUT. MTH

^ n A n n A l , N A r h n A l\ , / w v v v t v r r v J w v ( v

0 0 0 0 0 0 0 0 0 0 0

Data F i l e Name : C : \HPCHEM\4 \DATA\03 -L4 - t -4 \043F0501 .DOperator : mwdL Page Number : 1Instrument : GC#4 Vial Number : 43Samp le Name : 403171-05 In jec t i on Number : 1Run Time Bar Code: Sequence Line : 5Acqui red on z 14 Mar 14 05244 PM Inst rument Method: DX.MTHReport Created on: 17 Mar L4 09242 AIt l Analysis Method : BAKEOUT.MTH

0 0 0 0 0 0 0 0 0 c0 0 0 0 0 0 0 0 0 0

Data F i l e Name : C : \HPCHEM\4 \oe ta \03 -L4 -14 \044F0501- .DOperator : mwdl Page Number : 1fnstrument : GC#4 Vial Number : 44Sample Name : 403171--06 In ject ion Number : 1Run Time Bar Code: Seguence Line : 5Acqui red on : L4 Mar L4 05:57 PM Inst rument Method: DX.MTHReport Created on; l-7 Mar L4 09242 PNI Analysis Method : BAKEOUT.MTH

p f 0 f \ )

m 0 N0 0 0

P P P

0 f 0 A0 0 0

A') ,f' ft\ fnt v t - v J wn n n n\./ \./ \-/ \./n n n nv v v \ Ja n n n\-/ \./ \J \J

Data F i l e Name : C : \ l t pcHEM\4 \DATA\03 -14 -14 \045F0501 .DOperator : mwdl Page Number : LInstrument : GC#4 Vial Number z 45Sample Name : 403L7I-07 In ject ion Number : IRun Time Bar Code: Sequence Line : 5Acqui - red on z 1-4 Mar 14 05:10 PM Inst rument Method: DX.MTHReport Created on: 17 Mar 14 09:42 AlvI Analysis Method : BAKEOUT.MTH

t s N I \ )

r h n A lw v t v

0 0 0

P P P r -

0 i 0 4 0 )0 0 0 0

f \ ) A 0 mA A A N\./ \-/ \J \J

A N A Nv v v L . . /n n A n\-/ \-/ \-/ \J

Data Fi- l-e NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport Created on

c : \HpcHEM\4 \DATA\03 - t 4 -L4 \OeeFOSOr . OmwdlGC#4403171- - 0 8

14 Mar L417 Mar 1-4

05 223 PM0 9 : 4 2 A I " 1


14 6l_

5DX. MTHBAKEOUT. MTH

P l \ ) f \ )

r h n A l| l J \ J t V

0 r D 0

F P P r -

0 f 0 4 0 )0 0 0 0

^1 N /\ rYlLU ttf uJ wn n n n\-/ \./ \-/ \-/n n n n\-/ \-/ \J \J

n n n n

II

Data F i le NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport Created on

M a r 1 4 0 6 : 3 7M a r 1 4 0 9 : 4 2

Page NumberVial NumberIn ject ion NumberSequence LineInstrument MethodAnalysis MeLhod

DX. MTHBAKEOUT. MTH

c : \HpcHEM\4 \DATA\os - L4 - t4 \04TF0so1 . DmwdlGC#44 0 3 L 7 1 - 0 9

14 715

L 4L 7

PMAM

Dat.a Fi le NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport Creat,ed on

P I \ ) N )

m 0 N0 0 0

P H t s r -

n t \ l N nV ( V I F V J

n \ n r n n \\ u \ u \ u \ u

f\l N /\ fn(V ltr UJ wn n n nv v \ . i Un A n n\./ \-/ \J \J

^ ^ n n\J \J \-/ \-/

c : \HpcHeM\4\DATA\or - L4-1-4 \orsFos01 . Dmwdl-GC#40 4 - 5 3 3 m b


13 515DX. MTHBAKEOUT. MTH

L4 MarL7 Mar

0 3 : 5 70 9 : 4 1

L 4L 4

PMAIU

0 0 0 O c | \ r A 0 m 0 N0 0 0 0 r 0 0 0 0 0 0 0

Data Fil-e NameOperatorInstrumentSample NameRun Time Bar CodeAcquired onReport Created on

c : \HpcHEM\4 \DArA \03 - t 4 -14 \003F0201 . DmwdlGC#45 0 0 D x 4 2 - 1 1 - 3 D


1I

t_

z

DX. MTHBAKEOUT. MTH

74 Mar17 Mar

0 8 : 4 80 9 2 4 L

AMAM

L 4L 4

(t)(D

o

3H

It\[ \ -tNItt \

I

tplsl5Itrl>

o

Y

Ft

octt(t)

ll

0

rgF-L+J

o:<Q

"6N

NF .

l 5 -

t\

IFIrtNI t

$hI rt\

|'a'\l

o+l"tI NItl

$t ;ll^l

til

F. \ . J

FaIAEF)

Is

illi l

I S-gND R6* N HN F 3d s i

NFEt_gF

. F lF I

l et <I FI Fv)

. b

oas$:

cS

NNN

oFil-l

Ez:

o/oFl

\cU

\N

+

CA

oFl

o

TPH-Gasoline

BTEX by 80218

VOCs by8260

SVOCs bv 8270

n a F3 d F8 3 9E o o

= . H $F P qH ' u tt r

E g6'=l

xf r ]N l

{ io ,o lt l :t a i

trF

Q

Fo

o

I0aoO

nNo

K

E $, s s HI2 N R s S $U R E : 5 NI \ - : S S SI U H : > hg i $ E S v' s R N F X F

N 8 - S\ O B Q

o.)o

&."<

o

o

\

l ( }l ol o

o

dx

$\ l I

r\

\ \l '

I O

8"\.9

Nv)

EE

FYa

\

N$

FN(^

NzFl

z3

\

clq

!6oeoa

\

h^Vli$

{

o

Fz

(Ic sw

d${-

E

{-CF \

s

U$)

tJ




March 25, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on March 19, 2014 from the 81147022 6800 Roosevelt, F&BI 403253 project. There are 14 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.




1

CASE NARRATIVE This case narrative encompasses samples received on March 19, 2014 by Friedman & Bruya, Inc. from the Terracon 81147022 6800 Roosevelt, F&BI 403253 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 403253 -01 MW-1 403253 -02 MW-2 The 8260C calibration standard failed the acceptance criteria for bromomethane. The data were flagged accordingly. Several compounds in the 8260C matrix sample, laboratory control sample and laboratory control sample duplicate exceeded the acceptance criteria. The analytes were not detected in the sample, therefore the data were acceptable. All other quality control requirements were acceptable.



2


RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS GASOLINE

USING METHOD NWTPH-Gx Results Reported as ug/L (ppb)

Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 50-150) MW-2 <100 98 403253-02




3


RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE,


Results Reported as ug/L (ppb) Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-150) MW-1 <1 <1 4.4 27 630 86 403253-01

Method Blank <1 <1 <1 <3 <100 84 04-0524 MB



4




Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 51-134) MW-1 850 <250 67 403253-01

MW-2 <50 <250 77 403253-02 Method Blank <50 <250 82 04-576 MB



5

Analysis For Total Metals By EPA Method 200.8 Client ID: MW-1 Client: Terracon Date Received: 03/19/14 Project: 81147022, F&BI 403253 Date Extracted: 03/21/14 Lab ID: 403253-01 Date Analyzed: 03/21/14 Data File: 403253-01.013 Matrix: Water Instrument: ICPMS1 Units: ug/L (ppb) Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 97 60 125 Concentration Analyte: ug/L (ppb) Lead <1



6

Analysis For Total Metals By EPA Method 200.8 Client ID: Method Blank Client: Terracon Date Received: Not Applicable Project: 81147022, F&BI 403253 Date Extracted: 03/21/14 Lab ID: I4-175 mb Date Analyzed: 03/21/14 Data File: I4-175 mb.008 Matrix: Water Instrument: ICPMS1 Units: ug/L (ppb) Operator: AP Lower Upper Internal Standard: % Recovery: Limit: Limit: Holmium 94 60 125 Concentration Analyte: ug/L (ppb) Lead <1



7

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: MW-2 Client: Terracon Date Received: 03/19/14 Project: 81147022, F&BI 403253 Date Extracted: 03/20/14 Lab ID: 403253-02 Date Analyzed: 03/20/14 Data File: 032013.D Matrix: Water Instrument: GCMS4 Units: ug/L (ppb) Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 101 57 121 Toluene-d8 97 63 127 4-Bromofluorobenzene 96 60 133 Concentration Concentration Compounds: ug/L (ppb) Compounds: ug/L (ppb) Dichlorodifluoromethane <1 1,3-Dichloropropane <1 Chloromethane <10 Tetrachloroethene <1 Vinyl chloride <0.2 Dibromochloromethane <1 Bromomethane <1 ca 1,2-Dibromoethane (EDB) <1 Chloroethane <1 Chlorobenzene <1 Trichlorofluoromethane <1 Ethylbenzene <1 Acetone <10 1,1,1,2-Tetrachloroethane <1 1,1-Dichloroethene <1 m,p-Xylene <2 Methylene chloride <5 o-Xylene <1 Methyl t-butyl ether (MTBE) <1 Styrene <1 trans-1,2-Dichloroethene <1 Isopropylbenzene <1 1,1-Dichloroethane <1 Bromoform <1 2,2-Dichloropropane <1 n-Propylbenzene <1 cis-1,2-Dichloroethene <1 Bromobenzene <1 Chloroform <1 1,3,5-Trimethylbenzene <1 2-Butanone (MEK) <10 1,1,2,2-Tetrachloroethane <1 1,2-Dichloroethane (EDC) <1 1,2,3-Trichloropropane <1 1,1,1-Trichloroethane <1 2-Chlorotoluene <1 1,1-Dichloropropene <1 4-Chlorotoluene <1 Carbon tetrachloride <1 tert-Butylbenzene <1 Benzene <0.35 1,2,4-Trimethylbenzene <1 Trichloroethene <1 sec-Butylbenzene <1 1,2-Dichloropropane <1 p-Isopropyltoluene <1 Bromodichloromethane <1 1,3-Dichlorobenzene <1 Dibromomethane <1 1,4-Dichlorobenzene <1 4-Methyl-2-pentanone <10 1,2-Dichlorobenzene <1 cis-1,3-Dichloropropene <1 1,2-Dibromo-3-chloropropane <10 Toluene <1 1,2,4-Trichlorobenzene <1 trans-1,3-Dichloropropene <1 Hexachlorobutadiene <1 1,1,2-Trichloroethane <1 Naphthalene <1 2-Hexanone <10 1,2,3-Trichlorobenzene <1



8

Analysis For Volatile Compounds By EPA Method 8260C Client Sample ID: Method Blank Client: Terracon Date Received: Not Applicable Project: 81147022, F&BI 403253 Date Extracted: 03/20/14 Lab ID: 04-0513 mb Date Analyzed: 03/20/14 Data File: 032011.D Matrix: Water Instrument: GCMS4 Units: ug/L (ppb) Operator: JS Lower Upper Surrogates: % Recovery: Limit: Limit: 1,2-Dichloroethane-d4 102 57 121 Toluene-d8 99 63 127 4-Bromofluorobenzene 97 60 133 Concentration Concentration Compounds: ug/L (ppb) Compounds: ug/L (ppb) Dichlorodifluoromethane <1 1,3-Dichloropropane <1 Chloromethane <10 Tetrachloroethene <1 Vinyl chloride <0.2 Dibromochloromethane <1 Bromomethane <1 ca 1,2-Dibromoethane (EDB) <1 Chloroethane <1 Chlorobenzene <1 Trichlorofluoromethane <1 Ethylbenzene <1 Acetone <10 1,1,1,2-Tetrachloroethane <1 1,1-Dichloroethene <1 m,p-Xylene <2 Methylene chloride <5 o-Xylene <1 Methyl t-butyl ether (MTBE) <1 Styrene <1 trans-1,2-Dichloroethene <1 Isopropylbenzene <1 1,1-Dichloroethane <1 Bromoform <1 2,2-Dichloropropane <1 n-Propylbenzene <1 cis-1,2-Dichloroethene <1 Bromobenzene <1 Chloroform <1 1,3,5-Trimethylbenzene <1 2-Butanone (MEK) <10 1,1,2,2-Tetrachloroethane <1 1,2-Dichloroethane (EDC) <1 1,2,3-Trichloropropane <1 1,1,1-Trichloroethane <1 2-Chlorotoluene <1 1,1-Dichloropropene <1 4-Chlorotoluene <1 Carbon tetrachloride <1 tert-Butylbenzene <1 Benzene <0.35 1,2,4-Trimethylbenzene <1 Trichloroethene <1 sec-Butylbenzene <1 1,2-Dichloropropane <1 p-Isopropyltoluene <1 Bromodichloromethane <1 1,3-Dichlorobenzene <1 Dibromomethane <1 1,4-Dichlorobenzene <1 4-Methyl-2-pentanone <10 1,2-Dichlorobenzene <1 cis-1,3-Dichloropropene <1 1,2-Dibromo-3-chloropropane <10 Toluene <1 1,2,4-Trichlorobenzene <1 trans-1,3-Dichloropropene <1 Hexachlorobutadiene <1 1,1,2-Trichloroethane <1 Naphthalene <1 2-Hexanone <10 1,2,3-Trichlorobenzene <1



9


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR BENZENE, TOLUENE, ETHYLBENZENE,

XYLENES, AND TPH AS GASOLINE USING EPA METHOD 8021B AND NWTPH-Gx


Reporting Units

Sample Result

Duplicate Result

RPD (Limit 20)

Benzene ug/L (ppb) <1 <1 nm Toluene ug/L (ppb) <1 <1 nm Ethylbenzene ug/L (ppb) <1 <1 nm Xylenes ug/L (ppb) <3 <3 nm Gasoline ug/L (ppb) <100 <100 nm Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Benzene ug/L (ppb) 50 95 72-119 Toluene ug/L (ppb) 50 97 71-113 Ethylbenzene ug/L (ppb) 50 101 72-114 Xylenes ug/L (ppb) 150 88 72-113 Gasoline ug/L (ppb) 1,000 104 70-119



10


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS

DIESEL EXTENDED USING METHOD NWTPH-Dx Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Percent Recovery

LCSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended ug/L (ppb) 2,500 86 84 58-134 2



11


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES


Reporting

Units

Spike Level

Sample Result

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Lead ug/L (ppb) 10 <1.00 97 99 79-121 2 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Lead ug/L (ppb) 10 101 83-115



12


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR VOLATILES BY EPA METHOD 8260C


Reporting

Units

Spike Level

Sample Result

Percent Recovery

MS

Acceptance

Criteria Dichlorodifluoromethane ug/L (ppb) 50 <1 135 10-172 Chloromethane ug/L (ppb) 50 <10 113 25-166 Vinyl chloride ug/L (ppb) 50 0.62 118 36-166 Bromomethane ug/L (ppb) 50 <1 384 vo 47-169 Chloroethane ug/L (ppb) 50 <1 198 vo 46-160 Trichlorofluoromethane ug/L (ppb) 50 <1 131 44-165 Acetone ug/L (ppb) 250 <10 102 10-182 1,1-Dichloroethene ug/L (ppb) 50 <1 103 60-136 Methylene chloride ug/L (ppb) 50 <5 94 67-132 Methyl t-butyl ether (MTBE) ug/L (ppb) 50 <1 101 74-127 trans-1,2-Dichloroethene ug/L (ppb) 50 <1 98 72-129 1,1-Dichloroethane ug/L (ppb) 50 <1 101 70-128 2,2-Dichloropropane ug/L (ppb) 50 <1 97 36-154 cis-1,2-Dichloroethene ug/L (ppb) 50 9.3 100 71-127 Chloroform ug/L (ppb) 50 <1 100 65-132 2-Butanone (MEK) ug/L (ppb) 250 <10 108 10-129 1,2-Dichloroethane (EDC) ug/L (ppb) 50 <1 104 69-133 1,1,1-Trichloroethane ug/L (ppb) 50 <1 102 60-146 1,1-Dichloropropene ug/L (ppb) 50 <1 101 69-133 Carbon tetrachloride ug/L (ppb) 50 <1 106 56-152 Benzene ug/L (ppb) 50 <0.35 99 76-125 Trichloroethene ug/L (ppb) 50 5.6 96 66-135 1,2-Dichloropropane ug/L (ppb) 50 <1 101 78-125 Bromodichloromethane ug/L (ppb) 50 <1 107 61-150 Dibromomethane ug/L (ppb) 50 <1 104 66-141 4-Methyl -2-pentanone ug/L (ppb) 250 <10 101 10-185 cis-1,3-Dichloropropene ug/L (ppb) 50 <1 105 72-132 Toluene ug/L (ppb) 50 <1 95 76-122 trans-1,3-Dichloropropene ug/L (ppb) 50 <1 100 76-130 1,1,2-Trichloroethane ug/L (ppb) 50 <1 97 68-131 2-Hexanone ug/L (ppb) 250 <10 93 10-185 1,3-Dichloropropane ug/L (ppb) 50 <1 99 71-128 Tetrachloroethene ug/L (ppb) 50 <1 95 10-226 Dibromochloromethane ug/L (ppb) 50 <1 117 70-139 1,2-Dibromoethane (EDB) ug/L (ppb) 50 <1 99 69-134 Chlorobenzene ug/L (ppb) 50 <1 94 77-122 Ethylbenzene ug/L (ppb) 50 <1 93 69-135 1,1,1,2-Tetrachloroethane ug/L (ppb) 50 <1 105 73-137 m,p-Xylene ug/L (ppb) 100 <2 94 69-135 o-Xylene ug/L (ppb) 50 <1 96 60-140 Styrene ug/L (ppb) 50 <1 94 71-133 Isopropylbenzene ug/L (ppb) 50 <1 95 65-142 Bromoform ug/L (ppb) 50 <1 117 65-142 n-Propylbenzene ug/L (ppb) 50 <1 95 58-144 Bromobenzene ug/L (ppb) 50 <1 99 75-124 1,3,5-Trimethylbenzene ug/L (ppb) 50 <1 97 66-137 1,1,2,2-Tetrachloroethane ug/L (ppb) 50 <1 103 51-154 1,2,3-Trichloropropane ug/L (ppb) 50 <1 99 53-150 2-Chlorotoluene ug/L (ppb) 50 <1 96 66-127 4-Chlorotoluene ug/L (ppb) 50 <1 94 65-130 tert-Butylbenzene ug/L (ppb) 50 <1 102 65-137 1,2,4-Trimethylbenzene ug/L (ppb) 50 <1 95 59-146 sec-Butylbenzene ug/L (ppb) 50 <1 97 64-140 p-Isopropyltoluene ug/L (ppb) 50 <1 95 65-141 1,3-Dichlorobenzene ug/L (ppb) 50 <1 96 72-123 1,4-Dichlorobenzene ug/L (ppb) 50 <1 93 69-126 1,2-Dichlorobenzene ug/L (ppb) 50 <1 95 69-128 1,2-Dibromo-3-chloropropane ug/L (ppb) 50 <10 101 32-164 1,2,4-Trichlorobenzene ug/L (ppb) 50 <1 95 66-136 Hexachlorobutadiene ug/L (ppb) 50 <1 92 60-143 Naphthalene ug/L (ppb) 50 <1 94 44-164 1,2,3-Trichlorobenzene ug/L (ppb) 50 <1 90 69-148



13


QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR VOLATILES BY EPA METHOD 8260C

Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Percent Recovery

LCSD

Acceptance

Criteria

RPD

(Limit 20) Dichlorodifluoromethane ug/L (ppb) 50 124 128 25-158 3 Chloromethane ug/L (ppb) 50 108 113 45-156 5 Vinyl chloride ug/L (ppb) 50 112 113 50-154 1 Bromomethane ug/L (ppb) 50 363 vo 364 vo 55-143 0 Chloroethane ug/L (ppb) 50 193 vo 190 vo 58-146 2 Trichlorofluoromethane ug/L (ppb) 250 124 125 50-150 1 Acetone ug/L (ppb) 250 103 103 53-131 0 1,1-Dichloroethene ug/L (ppb) 50 100 101 67-136 1 Methylene chloride ug/L (ppb) 50 95 93 39-148 2 Methyl t-butyl ether (MTBE) ug/L (ppb) 50 101 101 64-147 0 trans-1,2-Dichloroethene ug/L (ppb) 50 98 97 68-128 1 1,1-Dichloroethane ug/L (ppb) 50 101 100 79-121 1 2,2-Dichloropropane ug/L (ppb) 50 97 96 55-143 1 cis-1,2-Dichloroethene ug/L (ppb) 50 99 100 80-123 1 Chloroform ug/L (ppb) 50 100 99 80-121 1 2-Butanone (MEK) ug/L (ppb) 250 107 105 57-149 2 1,2-Dichloroethane (EDC) ug/L (ppb) 50 103 103 73-132 0 1,1,1-Trichloroethane ug/L (ppb) 50 100 100 83-130 0 1,1-Dichloropropene ug/L (ppb) 50 100 100 77-129 0 Carbon tetrachloride ug/L (ppb) 50 102 104 75-158 2 Benzene ug/L (ppb) 50 98 98 69-134 0 Trichloroethene ug/L (ppb) 50 97 97 80-120 0 1,2-Dichloropropane ug/L (ppb) 50 100 100 77-123 0 Bromodichloromethane ug/L (ppb) 50 105 106 81-133 1 Dibromomethane ug/L (ppb) 50 103 102 82-125 1 4-Methyl -2-pentanone ug/L (ppb) 250 101 99 65-138 2 cis-1,3-Dichloropropene ug/L (ppb) 50 105 103 82-132 2 Toluene ug/L (ppb) 50 94 94 72-122 0 trans-1,3-Dichloropropene ug/L (ppb) 50 100 99 80-136 1 1,1,2-Trichloroethane ug/L (ppb) 50 96 96 75-124 0 2-Hexanone ug/L (ppb) 250 93 90 60-136 3 1,3-Dichloropropane ug/L (ppb) 50 98 98 76-126 0 Tetrachloroethene ug/L (ppb) 50 93 94 76-121 1 Dibromochloromethane ug/L (ppb) 50 113 114 84-133 1 1,2-Dibromoethane (EDB) ug/L (ppb) 50 99 98 82-125 1 Chlorobenzene ug/L (ppb) 50 94 93 83-114 1 Ethylbenzene ug/L (ppb) 50 92 92 77-124 0 1,1,1,2-Tetrachloroethane ug/L (ppb) 50 102 103 84-127 1 m,p-Xylene ug/L (ppb) 100 93 93 83-125 0 o-Xylene ug/L (ppb) 50 94 94 81-121 0 Styrene ug/L (ppb) 50 93 93 84-119 0 Isopropylbenzene ug/L (ppb) 50 93 94 85-117 1 Bromoform ug/L (ppb) 50 114 115 74-136 1 n-Propylbenzene ug/L (ppb) 50 93 93 74-126 0 Bromobenzene ug/L (ppb) 50 98 97 80-121 1 1,3,5-Trimethylbenzene ug/L (ppb) 50 96 95 78-123 1 1,1,2,2-Tetrachloroethane ug/L (ppb) 50 99 97 66-126 2 1,2,3-Trichloropropane ug/L (ppb) 50 97 96 67-124 1 2-Chlorotoluene ug/L (ppb) 50 94 94 77-127 0 4-Chlorotoluene ug/L (ppb) 50 93 92 78-128 1 tert-Butylbenzene ug/L (ppb) 50 98 98 80-123 0 1,2,4-Trimethylbenzene ug/L (ppb) 50 94 92 79-122 2 sec-Butylbenzene ug/L (ppb) 50 95 94 80-125 1 p-Isopropyltoluene ug/L (ppb) 50 93 93 81-123 0 1,3-Dichlorobenzene ug/L (ppb) 50 94 94 85-116 0 1,4-Dichlorobenzene ug/L (ppb) 50 91 91 84-121 0 1,2-Dichlorobenzene ug/L (ppb) 50 94 93 85-116 1 1,2-Dibromo-3-chloropropane ug/L (ppb) 50 97 96 57-141 1 1,2,4-Trichlorobenzene ug/L (ppb) 50 94 93 72-130 1 Hexachlorobutadiene ug/L (ppb) 50 90 91 53-141 1 Naphthalene ug/L (ppb) 50 90 90 64-133 0 1,2,3-Trichlorobenzene ug/L (ppb) 50 88 88 65-136 0



14



























t\]U0

Data File NameOperatorInstrumentSample Name

mwdl-cc #64 0 3 2 5 3 - 0 1

c : \npcHsM\6\DATA\ O: -Z 0 - 14 \ 0 14F0601 . D

Run Time Bar Code:Acquired on z 20Report, Created on: 2I

PMAM

MarMar

L 4 0 4 : 2 7L 4 0 8 : 5 1 -

Page NumberViaI NumberIn ject ion Number :Sequence Line :Instrument Method:Analysis Method :

11"41

6DX . MTHDX . MTH

I0

t0

00


mwdl-cc #6403253-02

: 2 0 M a r 1 4 0 4 2 4 0: 2 l - M a r 1 - 4 0 B : 5 1

Page NumberVial NumberIn ject ion Number :Sequence Line :Inst.rument Met,hod:Analysis Method :

c : \HpcHsM\6\DATA\ O: - 2 0 - 1_4\ 0 1sF050 r. . D

PMAM

1l_51

DX. MTHDX. MTH

An{n

tin0

[)Û0

P

0

Data F i l e Name : C : \HpCHEM\6 \DATA\03 -20 - i . 4 \0L l -Fo6o l_ .DOperator : mwdL Page Number : 1Instrument : GC #6 Vial Number : L1Sample Name : 04-576 mb Injection Number : l_Run Time Bar Code: Sequence Line : GAcqui red on : 20 Mar t4 03:54 PM Inst rument Method: DX.MTHReport , created on: 2r Nlar L4 08:51- AM Analys is Method : DX.MTH

Data F i l e Name : C : \ l t pcHEM\6 \DATA\03 -20 -14 \003F0201 .DOperator : mwdL Page Number : 1Instrument : GC #5 Vial Number : 3Sample Name : 500 Dx 42-278 Injection Number : LRun Time Bar Code: Sequence Line z 2Acqui red on z 20 Mar L4 1-0:55 AM Inst rument Method: DX.MTHReport Created on: 2L Mar L4 08:50 AIvI Anal -ys is Method : DX.MTH

o

t

ilsN\

o

ov,u,

o

ct)

o

FO

)o+

0

3Irlv

Ftrlof+iFI

HzAEl

o/aHAvl-lv

l$\q

3{

\

I-)

=

I oD'

o

il\+s)t

U E ;

w\

S..,\

S.-.

U2H u

E =F og

$

\

Gw-S,: ?

rl\-rr

v,H C

\ 9 H! E "

b{

a\ (AFeil

Eo

€Eo

qN

()

3 r *E . o= ' H roo

x x TPH-Diesel

z

t-

x >< TPH-Gasoline

BTEX bv 80218

v VOCs by8260

SVOCs bv 8270

HFS

s X Lr-,L U.7rlc

l

FF

u

I

J\

bzov,

Ft!3FXU)

\ x- s , EN A

, s 7u, E

\... F0\

s A

cdx \g \

(/)

Fdf-EFaCa

oaSssg

kN\\

ll+

0 n t r

rgEpE#E 3tl

Fl,s

trF

Fv,V()

0eoot9

g

No

d

g \ \

rj)

!t tt \t l.t (^)\

E n ' s I Rn.F i : t t l i r2 N N R . * S8 5 5 l= SS'I U N fi >e.P ? : " 5 d t rE R S : T Jr N s

S l i\ O B ( )

7oc)o

o

q

\

\

Fo

€aJood

:

\

FII .o

q

(

N

\

\\

7t!

oFo

Iq

t "

\

N\I

\

7D

azI-1

II:

R)

$Nst

$NFtrI

FzFl

z3rl

T1$*l

i{iB)

Fz

sSs,

UEE

YsFl

rd




May 8, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on April 25, 2014 from the 6814 Roosevelt Way 81147022, F&BI 404488 project. There are 11 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.

Michael Erdahl Project Manager Enclosures c: Eric Dubcak TRC0508R.DOC



1

CASE NARRATIVE This case narrative encompasses samples received on April 25, 2014 by Friedman & Bruya, Inc. from the Terracon 6814 Roosevelt Way 81147022, F&BI 404488 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 404488 -01 B-2 S-1 5-5.5 404488 -02 B-2 S-2 12.5-13.5 404488 -03 B-2 S-3 15-16 404488 -04 B-2 S-4 20-21 404488 -05 B-2 S-5 25-26 404488 -06 B-2 S-6 30-30.5 404488 -07 B-2 cuttings 20-25 404488 -08 B-3 S-1 5-5.5 404488 -09 B-3 S-2 10-11 404488 -10 B-3 S-3 15-16 404488 -11 B-3 S-4 20-21 404488 -12 B-3 S-5 25-25.5 404488 -13 B-3 cuttings 20-25 404488 -14 B-4 S-1 5-5.5 404488 -15 B-4 S-2 10-10.5 404488 -16 B-4 S-3 15-15.5 404488 -17 B-4 S-4 17.5-18.5 404488 -18 B-4 S-5 20-21 404488 -19 B-4 S-6 25-25.5 404488 -20 B-4 cuttings 20-25 404488 -21 B-5 S-1 6-6.5 404488 -22 B-5 S-2 10-10.5 404488 -23 B-5 S-3 15-15.5 404488 -24 B-5 S-4 17.5-18.5 404488 -25 B-5 S-5 20-21 404488 -26 B-5 cuttings 404488 -27 B-5 S-6 22.5-23 404488 -28 B-6 S-2 10-11 404488 -29 B-6 S-3 15-15.5 404488 -30 B-6 S-4 17-18 404488 -31 B-6 S 20-21 404488 -32 B-6 S 25-25.5 404488 -33 B-6 cuttings 12-12.5 Several NWTPH-Gx samples were not received in 5053A sampling containers. The data were flagged accordingly. All other quality control requirements were acceptable.



2

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 Date Extracted: 04/29/14 Date Analyzed: 04/29/14 and 04/30/14




Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 50-150) B-2 cuttings 20-25 pc 3.5 101 404488-07

B-4 S-3 15-15.5 pc <2 99 404488-16 B-4 S-5 20-21 pc <2 96 404488-18

B-4 cuttings 20-25 pc <2 96 404488-20

B-5 S-4 17.5-18.5 pc <2 100 404488-24




3

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 Date Extracted: 04/29/14 and 05/05/14 Date Analyzed: 04/29/14, 04/30/14 and 05/05/14




Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-150) B-2 S-2 12.5-13.5 <0.02 <0.02 <0.02 <0.06 <2 82 404488-02

B-2 S-3 15-16 <0.02 <0.02 <0.02 <0.06 <2 86 404488-03

B-2 S-4 20-21 <0.02 <0.02 <0.02 <0.06 <2 87 404488-04

B-3 S-3 15-16 <0.02 <0.02 <0.02 <0.06 <2 84 404488-10

B-3 S-4 20-21 <0.02 <0.02 <0.02 <0.06 <2 82 404488-11

B-3 cuttings 20-25 <0.02 j <0.04 <0.04 0.56 110 88 404488-13 1/2

B-4 S-4 17.5-18.5 <0.02 <0.02 <0.02 <0.06 <2 89 404488-17

B-5 S-3 15-15.5 <0.02 <0.02 <0.02 <0.06 <2 85 404488-23

B-5 S-5 20-21 <0.02 <0.02 <0.02 <0.06 <2 86 404488-25

B-5 cuttings <0.02 j <0.1 1.2 6.5 470 93 404488-26 1/5

B-6 S-2 10-11 pc <0.02 <0.02 <0.02 <0.06 <2 86 404488-28



4

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 Date Extracted: 04/29/14 and 05/05/14 Date Analyzed: 04/29/14, 04/30/14 and 05/05/14




Ethyl Total Gasoline Surrogate Sample ID Benzene Toluene Benzene Xylenes Range (% Recovery) Laboratory ID (Limit 50-150) B-6 S-3 15-15.5 0.03 j 0.13 2.0 11 630 94 404488-29 1/5

B-6 S-4 17-18 0.03 j 0.28 0.79 5.2 340 91 404488-30 1/5

B-6 S 20-21 <0.02 <0.02 <0.02 <0.06 <2 86 404488-31 Method Blank <0.02 <0.02 <0.02 <0.06 <2 87 04-0823 MB

Method Blank <0.02 <0.02 <0.02 <0.06 <2 83 04-0877 MB



5

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 Date Extracted: 04/28/14 and 05/05/14 Date Analyzed: 04/28/14 and 05/05/14




Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 56-165) B-2 S-2 12.5-13.5 <50 <250 89 404488-02 B-2 S-3 15-16 <50 <250 86 404488-03 B-2 S-4 20-21 <50 <250 86 404488-04 B-2 cuttings 20-25 64 <250 86 404488-07 B-3 S-3 15-16 <50 <250 93 404488-10 B-3 S-4 20-21 720 <250 87 404488-11 B-3 cuttings 20-25 960 <250 90 404488-13 B-4 S-3 15-15.5 <50 <250 90 404488-16 B-4 S-4 17.5-18.5 <50 <250 88 404488-17 B-4 S-5 20-21 <50 <250 87 404488-18 B-4 cuttings 20-25 <50 <250 87 404488-20 B-5 S-3 15-15.5 <50 <250 85 404488-23



6

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 Date Extracted: 04/28/14 and 05/05/14 Date Analyzed: 04/28/14 and 05/05/14




Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 56-165) B-5 S-4 17.5-18.5 <50 <250 91 404488-24 B-5 S-5 20-21 <50 <250 85 404488-25 B-5 cuttings 2,600 <250 94 404488-26 B-6 S-2 10-11 <50 <250 96 404488-28 B-6 S-3 15-15.5 1,100 <250 89 404488-29 B-6 S-4 17-18 7,200 <250 105 404488-30 B-6 S 20-21 <50 <250 85 404488-31 Method Blank <50 <250 95 04-837 MB Method Blank <50 <250 133 04-899 MB



7

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES


USING METHOD 8021B AND NWTPH-Gx Laboratory Code: 404488-18 (Duplicate) Analyte

Reporting Units

Sample Result

(Wet Wt)

Duplicate Result

(Wet Wt)

RPD


Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance




8

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES


USING EPA METHOD 8021B AND NWTPH-Gx Laboratory Code: 404488-28 (Duplicate) Analyte

Reporting Units

Sample Result

(Wet Wt)

Duplicate Result

(Wet Wt)

RPD


Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance




9

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488




Reporting

Units

Spike Level

Sample Result

(Wet Wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended mg/kg (ppm) 5,000 <50 111 103 63-146 7 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance




10

Date of Report: 05/08/14 Date Received: 04/25/14 Project: 6814 Roosevelt Way 81147022, F&BI 404488




Reporting

Units

Spike Level

Sample Result

(Wet Wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended mg/kg (ppm) 5,000 14,000 158 b 95 b 64-133 50 b Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance




11



























liglIt",r

ot--

I ;t l| "*it n ij '-; ' It \| .., 'l -l r 't ;

n

a

.':L,

(-

o:<U)

PNr-l

I \ - - -| <'"| -...t .t at -t . .| *-'

to+

lo

J

i

r i-'

G_3

'rl

X+

:.I'-1,

r - "7t . s

i

\-,5*',"

''-i

-li

o

3H

l-EE

o

lrlz

oeaa

'g

oao

II

II S: i b

] t--

F \ NI a

t :' - ,

3o)

q{

e.

\

j , . I

!

/1

-

,J!'

\J

t

-1"]

,;-

:iJ

TSI J

(--

!./

f

\ j

Ji

(-

r.

r .

:

, $ J

V

;

'F

v

J t

t

*)

I '

;- t

u/\

a

"o

t-1

ox)

s-\

qX

6P

ss

Gq GC\

\-

qJ a\,D?

o

U)F D *q v

,J\

j.' t(

{(::

{-+c ,

-!v.J(

s' v); - l

d ( Dc

i

\,(\:{r

a3'o

J

T]

. J \ \ - t.-}1

r-' p-i r . I * p ^

><' TPH-Dicsel

2

-l->{ r TPH-Gasol ine

t-<- >< \ f BTEX by 8021B

VOCs by8260

SVOCs by 8270

HFS -(tFTw

FT

FN

a-lH

U

o'):

!to

ooo

oCL!l

\N

\i'

-n.-

;

>

si

z

H

(t)

6\ 'tr

r. lrl- - o-J

. * z/v>r <'- rn:\' z

q-..

n'

| ! -

:

j.J

.L'..

n Fr'=l \

v ) = )

a - z

< x: - vi d c> : z@ -

,l

=FN

t

No

o'

t

-r'1atr1

-(t

{ F g

D ) ai a @

= E o

: ' ; ! !d e

x <

! n n

I \ . t - , u r \* i ' s I a :;2 a \ * : $^ . > j \ . \ =

- 3 : - = i =a Nr t\r, : 3 , { a > i G

; i" .rv"% a bx u : < - = \ X :x c i t e \ = I

{ f F n s{ ' v

\ F : -: ) - s

- +\o

oco

(!

j

33

E6

\

.rt

aca

q

I

\\\ ) \

N-J

o

-a

I T.\ 4

. J -

-)I .--{--_

'\,

\

\,qh-tcFrFL

Io

\S-s'\N\

t

z-!

z7in

-l/

q\

o-

+t

z

TNT\^\*(

F

S

U4-n

-+rF

$)

t . '

-l

7fr

(-

\-)r\

-4

06DC^'\tri

,,:

,}i'

U)CD

fo

Fl

.l

J l

-1,-

i l \

.-+--"(."\r

fl

. . ' - , - -l r - ' ,' - , I

o l

l n rlall Il ' , 1

l r ll . l

I

I ' ll tt lt ll . - lt ll lt lt lt tl ll lI I

-.t

'it>

; s@ a

1 ' o' r N

I I

: N .l.--3-fiI t

r lt _ -l ' : -

>n | .'lî ' Ii lr t l i

l.i'1I

l iiIl -I a -

l rb '

I x ,

l nI

I

lu-/

'i::

\:--

o

o

tD

a

>l^

\\

t

0c

II

l)-)I) q

i n . h

I A , '

t4I

L r l

a

/\"/', ,:r \ . t A

\Jr f i - -\.\ ' ' r" rI]

' t _ , 1r ' 4

J { J Vr i ( P. . rP ' v r n' . : , r \ \r r l

n -4.Y

I

a

\ffiX

NRci

c.Elt

ots-

z"xoqOtl

+

+

C.

l-./', l

-t

-{,.

l-

f

J

--L

' ( :

J

.-;

/ l

- ; J

' ! ;

)

' , I

V

flr ^ J

"-f

i tC.!J

@

-{

t-J

}Jo \ >( vr}+' |

I

S. rI h]

trtt+

.J,

I'

@l j -

i

( . ' J 1 LC '

J( '

!r-rJ(

Jc.'

. , i

a

d c eo-

C\ . 1

t^

a

rl

fr

F\t

P I r '' \ \--\ tr ,n|

-)i, JI

o

5

c J ^

X TPH-Diesel

z

* 'F-TPH-Gasol inc

.< \ ),< BTEX by 8021B

VOCs by8260

SVOCs by 8270

HFS IaH

(t

tTl

CH

a*lFNt--

a!t

Eo

oog.

oCI!,

tt -I

-F-

'F.

- 4 .

I

._"F.

c,c\

r z

N ] (;;;.

o 7 =

a - za >< x:' \-/o !r zv r F

-.1?tn

t

N

-

'U-r

-(nrTl

-U)

T " 1 - -U U U

t F v2 * a

N t @

2 a a

€ ; r n= ' t j 9- ; ; , \ t

; p: <

c

o

J

5

vJ

\

\

oa

za

-:

\r

N\I

=== .

i =l . o

\ ' 5

\ j' - . , 1

. l ',r)

Kz*HCdtn\

-J

\^

^sS\\A

? ' \

;

T

zaz3lr'

\')w*l

I

.-.1

d l

2 o-7'!

z

-:---1lTl

fb'

i r \

U(1

-l7rn

.'FI

Ji

!

C,

L -

.v-

I

:'.l./\Icn

(t

CD

FI

o

TPH.Gasoline

BTEX by 8021B

VOCs by8260

SVOCs by 827.0

o

=$ti r \U r \ t

tuilhl ; l s 'l i "h:lF>I r l fEt---n

lT]l "l pt rI A

l \ - -

l ' ( a__-T____1 7

x l r n l l -

)gl Hl He 3 l E l I

ililB(E

Oa

II

N;-e, J "

I

c ,

{. T t

xal

f \ t c . ^ , UJ \H F ' S S ' 6 i '. t d r t \ 1 .53 N 3 F : }a d d : 9 \ [2 : : S s - :L_l t\J .^v

\ A

R F R \ o a l +: \ ! i ' o o G b 'X q 9 0 \ S VX 6 t \ ) \ ! S S

S R P R J : '\ r v

\ J 5 j a! ) a \ \r- o! s-\ o q o

T o:o u )

l s Fl q l st 4 Ht , ,l c l I

l : l \I t .+I l e ,

l w l l ,v ' l - -/ l f - -

II n l l

H l.Nl+ l j '

'I AIl c +t<lb.IIII

eal]

3a

o{

tr

%

II

['AJIIq , <, t-/)

| -1 ,<c

.S14

I

E

fi'\.2ua { , ' ( r

.c'"jz

AR('v\'r, z1 . ' t

sF.-JC)vY

t r n r{ P sA ) 4 o

o 5 ot ) ) qi q @

€ H EF E . E; ' u 9 Pd e

F <; o6',a

R\/)'9 "o- t-! J ; i

o , za , >< 5o -r< 7.a - 1

-l

=ln

D

-aT

a

o

oa

No

gtliI'N\t .Itr>lr

o

F

It :t ll - -1l A \l : ilr:'r:l { l

l')

ov +? g;,i @= Io i- t

N ls)ru l.-. l r - .

F"- F,;lrr" lii 'Ir, Ili-" l -.l i - l .

t ;I l ' r -I I l r

l{\ l}l i Il l {l . - | t -l < |l }* lt lt tl l

rn

+

II t-'l;--'l\-.I "r.rI 't -l-'l-rly-l " rt -F|1

x+

: \ r 4 i \4 i ' - I : t :S : - q r \ J c i

2 N \ \ * - SI 5 5 F 3 =6 Nr N N f ^: Po f \c '> ;+

e i ! 3 s P- R 5 F \ *t l i F -

- <

c

(n

7frl

a

c+: *-faA v( l.-' 7uL .

10--c YY t71F xi * . - j

t ^ z- l ' " ;

O qt , \ IV +-a| ' t

l

\

a

3-H

aq

Oq

G

ci

Nlq

-FI

oFf.|

f-(z

(tr r . ]\AV

\ q

\ql

q

b

\

Ntu

+

0qo

t

J

E

TPH-Diesel

TPH-Gasol ine

BTEX by 8021B

VOCs by8260

SVOCs by 8270

-FN

-1

afr-(,

n T"l T"lU U U

<P 9 .b ) @! , ^ o

< * -='.ii 5'+ : H

o .

F <

5 '6

-l(-.

z-(-z

r-tU)

a,

N)

{.D

ncU)E

ts

N

n\\C,)

I




May 6, 2014 Sean Donnan, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Donnan: Included are the results from the testing of material submitted on April 28, 2014 from the 6814 Roosevelt 81147022, F&BI 404491 project. There are 6 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.

Michael Erdahl Project Manager Enclosures c: Eric Dubcak TRC0506R.DOC



1

CASE NARRATIVE This case narrative encompasses samples received on April 28, 2014 by Friedman & Bruya, Inc. from the Terracon 6814 Roosevelt 81147022, F&BI 404491 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 404491 -01 B-7 S-1 7.5-8 404491 -02 B-7 S-2 10-11 404491 -03 B-7 S-3 12.5-13.5 404491 -04 B-7 S-4 15-16 404491 -05 B-7 S-5 18.5-19 404491 -06 B-7 Cuttings 5-7.5 404491 -07 B-8 S-2 10-10.5 404491 -08 B-8 S-3 16-16.5 404491 -09 B-8 S-4 20-20.5 404491 -10 B-9 S-1 6-6.5 404491 -11 B-9 S-2 10-10.5 404491 -12 B-9 S-3 15-15.5 404491 -13 B-9 S-4 21-21.5 All quality control requirements were acceptable.



2

Date of Report: 05/06/14 Date Received: 04/28/14 Project: 6814 Roosevelt 81147022, F&BI 404491 Date Extracted: 04/30/14 Date Analyzed: 04/30/14




Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 50-150) B-7 S-3 12.5-13.5 110 130 404491-03

B-7 S-4 15-16 63 124 404491-04 B-7 Cuttings 5-7.5 <2 97 404491-06

B-8 S-2 10-10.5 <2 95 404491-07

B-8 S-3 16-16.5 <2 94 404491-08

B-9 S-1 6-6.5 <2 99 404491-10

B-9 S-2 10-10.5 <2 100 404491-11

B-9 S-3 15-15.5 <2 99 404491-12




3

Date of Report: 05/06/14 Date Received: 04/28/14 Project: 6814 Roosevelt 81147022, F&BI 404491 Date Extracted: 04/29/14 Date Analyzed: 04/29/14




Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 53-144) B-7 S-3 12.5-13.5 960 <250 117 404491-03

B-7 S-4 15-16 620 <250 115 404491-04

B-7 Cuttings 5-7.5 250 <250 113 404491-06

B-8 S-2 10-10.5 <50 <250 117 404491-07

B-8 S-3 16-16.5 <50 <250 109 404491-08

B-9 S-1 6-6.5 <50 <250 111 404491-10

B-9 S-2 10-10.5 <50 <250 113 404491-11

B-9 S-3 15-15.5 <50 <250 115 404491-12

Method Blank <50 <250 113 04-839 MB



4

Date of Report: 05/06/14 Date Received: 04/28/14 Project: 6814 Roosevelt 81147022, F&BI 404491 QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF SOIL SAMPLES

FOR TPH AS GASOLINE USING METHOD NWTPH-Gx


Reporting Units

Sample Result

(Wet Wt)

Duplicate Result

(Wet Wt)

RPD

(Limit 20) Gasoline mg/kg (ppm) <2 <2 nm Laboratory Code: Laboratory Control Sample Analyte

Reporting Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Gasoline mg/kg (ppm) 20 100 71-131



5

Date of Report: 05/06/14 Date Received: 04/28/14 Project: 6814 Roosevelt 81147022, F&BI 404491




Reporting

Units

Spike Level

Sample Result

(Wet Wt)

Percent Recovery

MS

Percent Recovery

MSD

Acceptance

Criteria

RPD

(Limit 20) Diesel Extended mg/kg (ppm) 5,000 570 124 122 64-133 2 Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance




6



























o

tdt :

lpt al 6t )

'-tov,v)

i - \

\ ,

-oGrl

G\

aEa

"oN

I

l c

lbIF

tC)-c

:l

(r)o

o

+I

t0

o+

lsIVl 4l 1I Jl Jl l

l,l.iC'u : .

x:tr

E $ s $ H 32 N R * : +E 5 g s $ SE F F $ F $H F $ F i *

N 8 - S\ o B o

c8-a- (t)

3

\n-1.

a\

ic.

h

\pt

c(

t

cfI

pCt

h

w\

cq

I

w

f':g

"\

Y\\)-J

oaq

ei

It

\n,

aarl\

j

{

p'.

!c

,\-

\

\^r-P

F

i+\n!E-!_,

,P

{J

L

-t&'

(a

o

BTEX by 80218

F

xV)

[ ) t *

^^'@fi5 r.9- E l

5 n Fo . r 'Zv $ >Y [ E

P,' Av

(t)

-rrJ

v)v,

Oa

sci

s$

-U

rr(

rr

)triz\4)I

hI

\

)

+

t r t r t r

EgEg I F= H +F F qH ' u t5 rg ;

.i

t.J

(D(?5q

Fa

c)

0c(Da

No

(Ao

oEFl

FI

o

30.

FIt

tni

.I.

).)

tt

tg

\nt

v\I

Y it / \

E)_b

\ni

}J

o

{.e>l

(nTD

oFl\ ( ' '

13o

BTEX bv 80218

tos

{

no(t)v)

l.)r )

v l

o

a

(D

N

E F s $ Hr.

E$$E$$b R N i i SN 8 - S\ o B O

6\

V)

3F0

FlrtoFFItst

-zI

ot1(aHA

Rot

${

N

\-e

pq

r}.'

x+

F

3Fna

0''Fc0 gg

-Fl'l

G ,,+'1.)+ r l

t r t r t rs F go t r cg ; 6, 1 9 A t= B : rF g E- t n .= ' o =6 vt =x <x @

a

Fa

o

Feooo@

-No

EF- R

HFFa . z




May 22, 2014 Eric A. Dubcak, Project Manager Terracon Pacific Cascade Building 21905 64th Ave. W., Suite 100 Mountlake Terrace, WA 98043 Dear Mr. Dubcak: Included are the results from the testing of material submitted on May 16, 2014 from the Roosevelt 6814-6820 81147022, F&BI 405331 project. There are 5 pages included in this report. Any samples that may remain are currently scheduled for disposal in 30 days. If you would like us to return your samples or arrange for long term storage at our offices, please contact us as soon as possible. We appreciate this opportunity to be of service to you and hope you will call if you should have any questions. Sincerely, FRIEDMAN & BRUYA, INC.

Michael Erdahl Project Manager Enclosures c: Sean Donnan TRC0523R.DOC



1

CASE NARRATIVE This case narrative encompasses samples received on May 16, 2014 by Friedman & Bruya, Inc. from the Terracon Roosevelt 6814-6820 81147022, F&BI 405331 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Terracon 405331-01 MW-4N 405331-02 MW-3N All quality control requirements were acceptable.



2

Date of Report: 05/22/14 Date Received: 05/16/14 Project: Roosevelt 6814-6820 81147022, F&BI 405331 Date Extracted: 05/19/14 Date Analyzed: 05/19/14

RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR TOTAL PETROLEUM HYDROCARBONS AS GASOLINE

USING METHOD NWTPH-Gx Results Reported as ug/L (ppb)

Surrogate Sample ID Gasoline Range (% Recovery) Laboratory ID (Limit 51-134) MW-4N <100 111 405331-01

MW-3N 590 131 405331-02




3

Date of Report: 05/22/14 Date Received: 05/16/14 Project: Roosevelt 6814-6820 81147022, F&BI 405331 Date Extracted: 05/21/14 Date Analyzed: 05/21/14



Surrogate Sample ID Diesel Range Motor Oil Range (% Recovery) Laboratory ID (C10-C25) (C25-C36) (Limit 47-140) MW-4N <50 <250 74 405331-01

MW-3N 1,000 <250 105 405331-02 Method Blank <50 <250 80 04-997 MB2



4

Date of Report: 05/22/14 Date Received: 05/16/14 Project: Roosevelt 6814-6820 81147022, F&BI 405331

QUALITY ASSURANCE RESULTS FOR THE ANALYSIS OF WATER SAMPLES FOR TPH AS GASOLINE

USING METHOD NWTPH-Gx Laboratory Code: 405330-01 (Duplicate) Analyte

Reporting Units Sample Result

Duplicate Result

RPD (Limit 20)

Gasoline ug/L (ppb) <100 <100 nm Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Acceptance

Criteria Gasoline ug/L (ppb) 1,000 98 69-134



5



























t s f \ ) f \ )

0 0 N0 0 0

P P P P

0 t \ ] A 0 )0 0 0 0

N ) A O On n n nv \./ \.,/ \-/

n n n n\./ \./ \.,/ \./n n n nv \../ \-./ \.,/

Data File NameOperatorInstrumentSample Name

spcc#44 0533 r_ - 01-

c : \HpcHEM\4\DATA\os- 2L- t4 \ozsro+oL . D

Run Time Bar Code:Acqui red on z 2L Nlay L4 01- :31Repor t Created on: 21- Nlay 14 01:48

PMPM

Page NumberVial Numberfnjection NumberSequence LineInstrument MethodAnalysis Method

12 51_4DX. MTHDX. MTH


c: \ l rpclrsM\4\DATA\os-z L-t4\oze ro+0i- . DspGC#44 0 5 3 3 1 , - 0 2

2 L2 t

L 4 O L : 4 41 4 0 2 : 0 5

Page NumberVial NumberIn ject ion NumberSequence LineInstrument Method: DX.MTHAnaLysis Method : DX.MTH

1_2 614

PMPM

MayMay

P I \ ] | \ )r h n A lw v ( v

0 0 0

t s H P P

0 t u A 0 )0 0 0 0

A 1 N / \ f Y lL V | J r U J wn n n n\./ \-/ \.,/ \-/n n n ^\./ \./ \./ \./n n n nU U U U


spGC#404-997 nb2

c : \HpcHEM\4\DATA\os-z L -L4 \ooeFo+0r - . D

AMPM

2 t2 L

M a y L 4 0 9 2 1 7May 1-4 0L249

Page Number :Vial Number :Injection Number :Sequence Line :Instrument MeLhod:Analysis Method :

t-614DX. MTHDX. MTH

Data File Name :Operator :Instrument :Sample Name :Run Time Bar Code:Acquired on :Report Creat,ed on:

spGC#4500 Dx 42 -113D

2L NIay 14 08:50 A1"12L N lay L4 01 - :49 PM

Page Number :ViaI Number :Injection Number :Sequence Line :Tnstrument Method:Anal-ysis Method :

c : \HpcHEM\4 \DATA\ os - z 1, - t4\ o o: roz o i_ . D131zDX. MTHDX. MTH


spGC#4500 Mo 42 - r -308

2l Nlay 1-4 08:37 AI' , !2L l {ay L4 0L :49 PM

Page Number :Vial Number :In ject ion Number :Sequence Llne :Instrument Method:Anal-ysis Method :

c : \HpcHEM\4 \DATA\OS- 2L -L4 \OOZTOZ 01 . D1z

1z

DX. MTHDX. MTH

l[

V)o

7o

rl

I

lII't

lRlprlFIIIIIII

oooo.J,.Jt

N.-q

,s\.h

oF(t

"oN

l >loR.

\13

V)

ttY

Fl!ol+ltsl

EzA

a1ot4

0HA-

\ID

tl

tl1

X:fF

3{IrNz

3Ir

z

t

$*v

bo-{

ot v a

qs_s.

qs-q

C,)

i l v

F o

\ l

})tJ

\^l

F)p

u)H - l

€ 5a o

q$

q\{

(t)A'

'oor{

'oo

-9, F

o

3 +5 H roq,

x X TPH-Diesel

2

X x TPH-Gasoline

BTEX bv 8021B

VOCs by8260

SVOCs by 8270

HFS t-C'

(t

f!

qF

(l

EWfl\x

u$

ENilx

zo0

a-A. E=i['9:.-il'EbRF

6 5e>$s"-S, E'$*i.

(t)

E-

FV)q

oosssd

t r t r t r

=gEs F HH o o

3 g $F 9 EH ' u tI t ig ;a

trF.v)

t ..)

I( ! 'oFa

Fa

oa)oeoaA)

7

f-tNood

H R' S F 8+q R ! - s < R .i 1 t F t ! i \2 N N F * - $a d , .X : $S2 v : s s sE U X ; b mi . l P f F 6 wX U r 9 0 . . - \d R H i I F

N 8 - S\ o q o

o6o

oq

x

7o

O

o

q

Ft!

Io

.g

4 (- l l

In\ (

tr

7o5

o. 5

o

IxIS

N\I

(rt

zhEF|^,

v,)

\

$^.\

of>s\

F2I

z

Iq

l,

IlNN so

5

o

Fz

!((C'fT

\ ssrG,

Ur-lt rJ

lc

)t-s$

-l

APPENDIX E – GEOPOTENTIAL SUMMARY REPORT

ENVIRONMENTAL & EXPLORATION GEOPHYSICS

22323 East Wild Fern Lane, Brightwood, Oregon 97011 PH (503) 622-0154 FAX (503) 622-0526 WEB http://www.geopotential.biz/ E-MAIL [email protected]

CLIENT Terracon

21905 64TH Avenue W. Suite 100 Mountlake Terrace, Washington

98043

DATE OF SURVEY

March 11, 2014

SUMMARY REPORT

SUBSURFACE MAPPING SURVEY TO DETECT

UNDERGROUND STORAGE TANKS

AUTOMOTIVE REPAIR FACILITY AND RETAIL SPACE 6800-6820 ROOSEVELT WAY NE

SEATTLE, WA

GeoPotential Project Number: 9171

1

CONTENTS

Summary ....................................................................................................................................................3 Introduction ................................................................................................................................................3 Survey Objectives .......................................................................................................................................3 Survey Site .................................................................................................................................................3 Survey Equipment ......................................................................................................................................3 Procedure ....................................................................................................................................................4 Results ........................................................................................................................................................4 Limitations..................................................................................................................................................5 FIGURES Figure 1. Location Map ..............................................................................................................................6 Figure 2. Site Map ......................................................................................................................................7 Figure 3. Magnetic Intensity Map Area A ..................................................................................................8 Figure 4. Interpretation Map Area A ..........................................................................................................9 Figure 5. Magnetic Map/Interpretation Map Area B ..................................................................................10 APPENDICES Appendix A – Magnetometer Surveys .......................................................................................................11 Appendix B – Ground Penetrating Radar Surveys .....................................................................................12

2

SUMMARY

A geophysical survey was conducted upon pre-selected portions of parking areas servicing 6800-6820 Roosevelt Way NE, Seattle, Washington, for the purpose of detecting underground storage tanks (USTs), conductive and nonconductive utilities. A Magnetic Survey, a Ground Penetrating Radar (GPR) survey and hand held magnetic and electromagnetic scanners were used for the UST search. Three possible USTS were detected during the survey. A Borehole Clearance Survey (BHCS) was performed on seven proposed boreholes.

INTRODUCTION Anthony Bartruff of GeoPotential conducted the Subsurface Mapping Survey (SMS). Fieldwork was carried out on March 11, 2014 in the presence of Sabine Datum from TERRACON. The report was completed and e-mailed to TERRACON on March 14, 2014. Subsurface mapping surveys are geophysical surveys utilizing geophysical methods and data to detect and locate natural and manmade subsurface features. Magnetic Surveys are used to detect and map the locations of buried ferrous (iron-bearing) objects (see Appendix A). Ground Penetrating Radar (GPR) Surveys are used to map both natural and manmade subsurface features such as USTs, utilities, backfilled pits, etc. (see Appendix B). Pipe and cable locators are used to map the locations of buried utilities and piping. Once subsurface ferrous objects are detected from a magnetic survey then hand held scanners and GPR surveys are used to map the locations, depths, sizes and shapes of the objects.

SURVEY OBJECTIVES The objectives of this subsurface mapping survey are:

1. Search for an underground storage tank or UST pit. 2. Search for conductive or non-conductive utilities. 3. Clear 12 proposed boreholes of utilities which may impact drilling operations.

SURVEY SITE The survey location is shown outlined on Figure 1 and has been split into two Areas A and B, denoted within Figure 2. The survey Site is an active parking area serving retail/commercial facilities and an automotive repair facility onsite. The Site is primarily covered with asphalt and is lined on its North, West, and East sides with concrete sidewalks. Historical information provided by TERRACON indicated that Area A was a former gas station which may contain USTS and Area B contained one active UST and one deactivated UST.

SURVEY EQUIPMENT

The following geophysical instruments were used to conduct the survey: 3

• GEOMETRICS 858G Cesium Vapor Magnetometer (Magnetic Survey). • Mala RAMAC Ground Penetrating Radar System with a 250 MHz antenna (GPR Survey). • Schonstedt GA52 Magnetic Gradiometer. • Aqua-Tronics A6 Pipe & Cable locator. • Heath Sure-Lock Pipe & Cable locator.

This equipment and the procedures used to meet the survey objectives of this project have been proven effective in detecting natural metallic ore bodies and mapping the thickness of landfill debris. Geophysical techniques are excellent at detecting changes in the subsurface caused by natural and manmade objects; however, they are poor at actually identifying subsurface features. Complementary methods may be used to assist in the interpretation; however, the only sure way of identifying a buried feature is by excavation. Brief descriptions of the magnetic method and the radar method are included in the Appendices.

PROCEDURE

Magnetic Survey The Magnetic Survey consisted of acquiring magnetic along traverses using 5.0 foot spacing between traverses on Area A and 2.5 foot traverses on Area B. Magnetic data were downloaded to a computer, processed and contoured to produce Figures 3 and 5A the Magnetic Maps. The Magnetic Maps were plotted at a Contour Interval of 500 nT a contour interval sufficient to detect USTS. In general buried ferriferous objects will produce predominantly positive magnetic anomalies that are shown as red contours on the Magnetic Map. Surface ferriferous objects such as the metal fence within Area A and the Above Ground Storage Tanks (AST) within Area B will produce predominantly negative magnetic anomalies that are shown as blue contours on the magnetic map. Three significant positive Magnetic Anomalies which could be caused by UST’s were observed on the Magnetic Maps (Figure 3 and 5a) and are labeled M1, 2, and 3. GPR Survey The GPR Survey consisted of acquiring a number of GPR Profiles across the Site to map utilities and search for a USTs and UST Pits to a depth of 3-5 feet. Pipe & Cable Survey Magnetic and electromagnetic scans were conducted to search for USTs and utilities.

RESULTS Results were marked on the Site with paint and are shown on Figure 4, and 5B. Interpretation of Magnetic Anomalies: • M1 – Is a probable 6 x 12 foot UST 4

• M2 – Is a probable 8 x 4 foot active UST. • M3 – Is a probable 6 x 4 foot inactive UST. All other Magnetic Anomalies on the Site are interpreted to be caused by surface features, subsurface utilities and minor ferric debris. A total of 12 proposed Boreholes were cleared of utilities. No additional USTs were identified from the Subsurface Mapping Survey.

LIMITATIONS Limitations of magnetometer and GPR surveys can be seen in the Appendices. Geophysical surveys consist of interpreting geophysical responses from subsurface features. Since a variety of subsurface features can produce identical geophysical responses, it is necessary to confirm the geophysical interpretation with intrusive investigations such as excavating or drilling. In addition, many subsurface features may produce no geophysical response.

Ralph Soule GeoPotential

Anthony Bartruff GeoPotential

5

6

7

8

9

10



APPENDIX A MAGNETOMETER SURVEYS

The earth's magnetic field, measured in "nano Teslas" (nT), behaves like a bar magnet ( a dipolar field), with the strongest magnetic field located at the poles, and the weakest field located near the equator. In the continental United States, the average field intensity varies widely, however, the average value is about 50,000 nT. Also, like the magnetic field around the bar magnet, the earth's magnetic field is inclined. This inclination in the continental United States varies between 60 and 75 degrees, generally depending upon the latitude of the measuring location. The earth's magnetic field varies constantly and, during sunspot activity, quite dramatically. A magnetometer is an electronic device that measures the intensity of the earth's magnetic field. Naturally occurring geologic features and buried ferrous metal objects such as underground storage tanks, drums, ordnance, pipes and debris filled trenches produce both horizontal and vertical disturbances to the earth's local magnetic field. The objects causing these "anomalies" can be detected quickly and reliably using portable magnetometers. The intensity of an anomaly is a function of the size, depth of burial and magnetic susceptibility of the object. As a rule of thumb, single drums buried several feet below the surface produce anomalies of about 200 nT relative to the normal undisturbed background and can be detected at a horizontal distance of about 15 feet, while large caches of drums can produce anomalies of many thousands of nT and may be detectable 50 feet away. Magnetometers generally measure total intensity of the local magnetic field. A magnetic gradiometer is a variant of the magnetometer that measures both the horizontal and the vertical magnetic field at each survey point. It consists of two identical sensors located vertically on a staff and having a fixed separation. The intensity of the magnetic field caused by a buried metal object varies inversely with the distance between the object and the sensor. The relative intensities measured simultaneously at each sensor are used to determine the relative depth of burial of an object. Relative depth estimates of buried metal objects can be made using a single sensor. In general, for a given object, the deeper the object is buried, the lower the amplitude and the wider the anomaly. Shallowly buried objects produce higher amplitude anomalies with closely spaced contour lines. Magnetic surveys can only detect ferrous metal objects and cannot be used to identify the buried object. Estimates of the total mass of a buried object are difficult due to the physical properties of the object and other factors. Interference caused by observed surface metal objects limits the accuracy of the survey. The anomalies produced by fences, power lines, cars and buildings can easily mask the anomaly caused by an underground target. Magnetic surveys are cost effective. Using the standard "step and wait" magnetometer, data from approximately 1000 points can be obtained in one field day corresponding to between 1 acre and about 5 acres depending on site conditions and survey goals. More modern cesium magnetometers collect up to 10 readings per second continuously, thus the operator can proceed without stopping. Many modern magnetometers use an audible signal to call attention to anomalous data as it is obtained. At some sites metallic objects can be detected and marked in the field at the time of the survey.

11

The use of a second, automatically recording "base station" magnetometer is highly recommended due to temporal variations in the earth's magnetic field. These changes must be removed from the field data before an accurate interpretation can be made, particularly when searching for small-buried objects. Magnetic data are most commonly presented in two contour maps. The TOTAL MAGNETIC FIELD CONTOUR MAP shows the horizontal variation of the total intensity of the magnetic field and, therefore, the areal extent of anomalies. The GRADIOMETER CONTOUR MAPS show the horizontal variation of the vertical gradient of the magnetic field and indicate the relative depth of burial of the objects causing those anomalies. Color versions of these maps may be produced showing only the magnetic highs and lows.

12



APPENDIX B GROUND PENETRATING RADAR SURVEYS

Ground Penetrating Radar (GPR) can be a valuable tool to accurately locate both metallic and non-metallic UST's and utilities, buried drums and hazardous material at some sites. It may detect objects below reinforced concrete floors and slabs. GPR may delineate trenches and excavations and, under some conditions, it may be used to locate contaminant plumes. It has been used as an archaeological tool to look for buried artifacts. It may accurately profile fresh water lake bottoms either from a boat or from a frozen lake surface. GPR may be used to locate voids below roads and runways. GPR has numerous engineering applications. It can be used in non-destructive testing of engineering material, for example, locating rebar in concrete structures and determining the thickness of concrete and other structural material.

GPR uses short impulses of high frequency radio waves directed into the ground to acquire information about the subsurface. The energy radiated into the ground is reflected back to the antenna by features having different electrical properties to that of the surrounding material. The greater the contrast, the stronger the reflection. Typical reflectors include water table, bedrock, bedding, fractures, voids, contaminant plumes and man-made objects such as UST's and metal and plastic utilities. Materials having little electrical contrast like clay and concrete pipes may not produce strong reflections and may not be seen. Data are digitally recorded or downloaded to a laptop computer for filtering and processing.

The frequency of the radar signal used for a survey is a trade off. Low frequencies (250 MHz – 50 MHz) give better penetration but low resolution so that pipes and utilities may not be seen. Pipes and utilities may be seen using higher frequencies (500 MHz) but the depth of penetration may be limited to only a few feet especially in the wet, clayey soils found in many areas of the NW USA. The GPR frequency is dependent upon the antenna. Once an antenna is selected, nothing the operator can do can increase the depth of penetration.

Radar data is ambiguous. Many buried objects produce echoes that may be similar to the echo expected from the target object. Boulders and debris produce reflections that are similar to pipes and tanks. Subtle changes in the electrical properties along a traverse caused by changes in soil type, mineralogy, grain size, and moisture content all produce “noise” that can make interpretation difficult. Interpreting radargrams is an art as much as a science.

Under some conditions, although a UST itself may not be clearly visible in a GPR record, the excavation or trench in which the UST is buried is evident. Usually GPR data is used to compliment data from other “tools”. For example, a trench-like reflection but no clear UST reflection, combined with a “tank” shaped magnetic anomaly suggests the presence of a UST. Although the UST itself could not be seen using GPR, the radar showed a trench-like reflection. The magnetic data showed a large ferrous object. We would report a possible UST at that location.

GPR is often used in conjunction with magnetometer surveys. Magnetometer Surveys are very fast and large areas can be covered cost effectively. Magnetic anomalies are marked in the field, and then may be further investigated using radar.

13

GPR, like other geophysical tools, is excellent at detecting changes across a site, but it is poor at actually identifying the cause of the change. The only definite way to identify buried objects is through excavation.

ADVANTAGES - General

• When GPR data is properly interpreted subsurface objects can usually be confidently identified. This often requires the GPR data be combined with other geophysical data, surface features and historical information.

• GPR provides continuous records along traverses which, depending on the goal of the survey, may

be interpreted in the field.

• At flat, open sites, for reconnaissance purposes, the antenna can be towed behind a vehicle at several mph.

• Many GPR antennas are shielded and are unaffected by surface and overhead objects and power

lines.

• GPR can be used in conjunction with magnetic or EM surveys to accurately locate buried objects.

ADVANTAGES – Site specific

• With a low frequency antenna, in clean, dry, sandy soil, reflections from targets as deep as 100 feet are possible. Geologic features such as bedrock and cross bedding may be seen at some sites.

• The resolution of data is very high particularly for high frequency antennas.

• Shallow, man-made objects generally can be detected.

• Fiberglass UST’s and plastic pipes can be detected using GPR.

LIMITATIONS - General

• To acquire the highest quality data, proper coupling between the antenna and the ground surface is necessary. Poor data may be obtained at sites covered with debris, an uneven surface, tall grass and brush. Objects located at curbs are difficult to see.

• Acquiring GPR data is slow. The antenna must be over the target. The signal from the antenna is cone-shaped. Reflections from objects to the side of the antenna may be seen, but their actual location relative to the antenna is not obvious.

• Penetration of the GPR signal is "site specific" and its depth of penetration at a particular site cannot be predicted ahead of time. Near surface conductive material, such as salty or contaminated ground water and wet, clay-rich soil, may attenuate the radar signal, limiting the effective depth of the survey to several feet. Reinforced concrete also can attenuate the signal. Rebar may produce reflections that look like pipes.

14

• GPR may not be cost-effective for some projects. For a detailed survey mapping underground storage tanks and utilities, it may be necessary to collect data in orthogonal directions at 5-foot line spacing.

LIMITATIONS – Interpretation

• Interpretation can be difficult. Radar data are ambiguous. Subsurface objects can be detected but, in general, they cannot be identified. USTs and utilities have a characteristic reflection, however, large rocks and boulders have a similar reflection.

• The reflection visible in a GPR record is very complex and may be caused by small changes in the electrical properties of the soil. The target in mind may not produce the reflection. Due to “noise”, the target may be missed. USTs and deep utilities may be missed if they are under debris and/or other pipes.

• Other methods may be necessary to aid in the interpretation of the data (use a magnetometer to detect a large metallic mass, then GPR to determine if the object is tank-like, or a utility locator to determine if there are feed lines and fill pipes leading to the object).

• Adequate contrast between the ground and the target is required to obtain reflections. UST’s may be missed if they are badly corroded. Utilities made of “earth” materials like clay and concrete may not be detected since their electrical properties are similar to the surrounding soil.

• To determine the depth to an object without "ground truth", assumptions must be made regarding soil properties. Even with ground truth at several locations on the same site, changes in material across a site (therefore changes in signal velocity) can cause errors in depth measurements at other locations.

15

Documents

Phase II Environmental Site Assessment Roosevelt/Spec Doc… · May 21, 2014 Terracon Project No. 81127021/81147022 Responsive Resourceful Reliable 4 3.0 METHODOLOGY Methods used