Imagine the result - Washington State Department of Ecology

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651(6155) Annual Site Status Report 2013.docx Imagine the result Libby Goldstein Washington State Department of Ecology NW Regional Office 3190 160 th Ave SE Bellevue, Washington 98008 Subject: Annual Site Status Report 2013 ARCO Facility No. 0651 Ecology Facility ID: 11572949 VCP No. NW2348 5800 Southcenter Boulevard Tukwila, Washington 98188 Dear Ms. Goldstein: On behalf of BP West Coast Products, LLC. (BP), ARCADIS U.S., Inc. (ARCADIS) is pleased to submit this Annual Site Status Report 2013 for the above referenced facility (the site). The site is currently an active ARCO fuel station located at 5800 Southcenter Boulevard, Tukwila, King County, Washington. During 2013, ARCADIS installed one monitoring well, replaced one vapor extraction well and conducted three groundwater monitoring events at the site. A site location map is presented as Figure 1 and a site aerial map is presented as Figure 2. Well Installation and Replacement On July 15, 2013, ARCADIS contracted Cascade Drilling, LP (Cascade), a licensed drilling subcontractor, to advance two soil borings on the site. One of the borings was completed as vapor extraction well VE-8A and the other was completed as monitoring well MW-6. The locations of the new wells are presented in Figure 3. Monitoring well MW-6 was cleared to a depth of 6.5 feet below ground surface (bgs) using an air knife and vacuum truck, in order to reduce the potential for damage to subsurface utilities. The boring was then advanced from 6.5 feet bgs to the total depth of 33.5 feet bgs, using an 8-inch diameter, hollow-stem auger mounted on a drill rig. The existing vapor extraction well, VE-8, was removed and the borehole was overdrilled using a 10-inch hollow-stem auger mounted on the same rig used for MW-6. The boring for VE-8A was advanced to a total depth of 31.5 feet bgs. During drilling activities, soil samples were collected from both borings for lithological ARCADIS U.S., Inc. 1100 Olive Way Suite 800 Seattle Washington 98101 Tel 206.325.5254 Fax 206.325.8218 www.arcadis-us.com ENVIRONMENT Date: March 4, 2014 Contact: Richard Rodriguez Phone: 206-726-4721 Email: Richard.Rodriguez @arcadis-us.com Our ref: GP09BPNA.WA45.N0000

Transcript of Imagine the result - Washington State Department of Ecology

651(6155) Annual Site Status Report 2013.docx

Imagine the result

Libby Goldstein

Washington State Department of Ecology

NW Regional Office

3190 160th Ave SE

Bellevue, Washington 98008

Subject:

Annual Site Status Report 2013

ARCO Facility No. 0651

Ecology Facility ID: 11572949

VCP No. NW2348

5800 Southcenter Boulevard

Tukwila, Washington 98188

Dear Ms. Goldstein:

On behalf of BP West Coast Products, LLC. (BP), ARCADIS U.S., Inc. (ARCADIS) is

pleased to submit this Annual Site Status Report 2013 for the above referenced

facility (the site). The site is currently an active ARCO fuel station located at 5800

Southcenter Boulevard, Tukwila, King County, Washington. During 2013, ARCADIS

installed one monitoring well, replaced one vapor extraction well and conducted three

groundwater monitoring events at the site. A site location map is presented as

Figure 1 and a site aerial map is presented as Figure 2.

Well Installation and Replacement

On July 15, 2013, ARCADIS contracted Cascade Drilling, LP (Cascade), a licensed

drilling subcontractor, to advance two soil borings on the site. One of the borings was

completed as vapor extraction well VE-8A and the other was completed as

monitoring well MW-6. The locations of the new wells are presented in Figure 3.

Monitoring well MW-6 was cleared to a depth of 6.5 feet below ground surface (bgs)

using an air knife and vacuum truck, in order to reduce the potential for damage to

subsurface utilities. The boring was then advanced from 6.5 feet bgs to the total

depth of 33.5 feet bgs, using an 8-inch diameter, hollow-stem auger mounted on a

drill rig. The existing vapor extraction well, VE-8, was removed and the borehole was

overdrilled using a 10-inch hollow-stem auger mounted on the same rig used for

MW-6. The boring for VE-8A was advanced to a total depth of 31.5 feet bgs. During

drilling activities, soil samples were collected from both borings for lithological

ARCADIS U.S., Inc.

1100 Olive Way

Suite 800

Seattle

Washington 98101

Tel 206.325.5254

Fax 206.325.8218

www.arcadis-us.com

ENVIRONMENT

Date:

March 4, 2014

Contact:

Richard Rodriguez Phone:

206-726-4721 Email:

Richard.Rodriguez @arcadis-us.com Our ref:

GP09BPNA.WA45.N0000

Ms. Libby Goldstein March 4, 2014

Page:

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description at intervals determined by ARCADIS personnel. Soil types and other

pertinent data were recorded in the boring logs included in Appendix A. Seven

open-top 55-gallon stainless steel drums of soil cuttings and one closed-top 55-

gallon stainless steel drum of decontamination and purge water were generated

during drilling. Waste drums were removed on July 17, 2013 by Kleen Environmental

Technologies, Inc.

After reaching total depth at MW-6, Cascade installed a 2-inch diameter Schedule 40

polyvinyl chloride (PVC) well casing with a 10-foot section of 0.020-inch slotted

screen extending from 22 feet to 32 feet bgs. The annular space was filled with 2/12

silica sand from total depth to 20 feet bgs, hydrated bentonite chips from 20 to 3 feet

bgs, and concrete from 3 feet bgs to just below the top of the casing at 0.4 feet bgs.

An 8-inch well box was installed to match the existing grade.

After reaching total depth at VE-8A, Cascade installed 4-inch diameter Schedule 40

PVC well casing with a 20-foot section of 0.020-inch slotted screen extending from

10 feet to 30 feet bgs. The annular space was filled with 2/12 silica sand from total

depth to 9 feet bgs, hydrated bentonite chips from 9 to 2.5 feet bgs, and concrete

from 2.5 ft bgs to bottom of the well vault at 1.5 feet bgs. The 18-inch well vault that

previously housed VE-8 was left in place to match the existing grade.

Soil samples were collected from MW-6 at depths of 5.0-5.5 feet bgs, 10.0-11.5 feet

bgs, 20.5-21.5 feet bgs, 23.0-24.0 feet bgs, and 33.0-33.5 feet bgs and from VE-8A

at depths of 16.0-16.5 feet bgs, 23.5-24.0 feet bgs, 25.5-26.5 feet bgs, and 31.0-31.5

feet bgs. Soil samples from intervals of 5.0-5.5, 10.0-11.5, 20.5-21.5 feet bgs at MW-

6 and 16.0-16.5 and 23.5-24 feet bgs at VE-8A were deposited in laboratory-

provided sample containers. They were then sealed, labeled, and immediately stored

in a cooler with ice for transport to Pace Analytical Services, Inc. (Pace) in Seattle,

Washington, under standard chain-of-custody protocol. The laboratory analytical

report and chain-of-custody documentation are included in Appendix B. Samples

were analyzed for the following constituents of concern (COCs):

Total petroleum hydrocarbons (TPH) as gasoline range organics (GRO) by

Washington State Department of Ecology (Ecology) Method NWTPH-Gx;

Benzene, toluene, ethylbenzene, total xylenes (BTEX collectively), methyl

tertiary butyl ether (MTBE), 1,2-dichloroethane (EDC), ethylene dibromide

(EDB) by Environmental Protection Agency (EPA) Method 8260;

Total lead by EPA Method 6020.

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Analytical results for the soil samples indicate the following COCs are present at

concentrations that exceed Ecology Model Toxics Control Act (MTCA) Method A

Cleanup Levels (Method A CLs):

GRO at a concentration above the 100 mg/kg MTCA Method A CL in the soil

sample collected from the 10.0-11.5 feet bgs interval at monitoring well MW-

6 (1,600 mg/kg);

Toluene at a concentration above the 7 mg/kg MTCA Method A CL in the soil

sample collected from the 10.0-11.5 feet bgs interval at monitoring well MW-

6 (16.8 mg/kg);

Ethylbenzene at a concentration above the 6 mg/kg MTCA Method A CL in

the soil sample collected from the 10.0-11.5 feet bgs interval at monitoring

well MW-6 (41 mg/kg); and

Total xylenes at a concentration above the 9 mg/kg MTCA Method A CL in

the soil sample collected from the 10.0-11.5 feet bgs interval at monitoring

well MW-6 (208 mg/kg).

Analytical results for the remaining analyzed soil samples did not contain COCs at

concentrations that exceeded MTCA Method A CLs. Soil analytical results are

presented in Table 1 and Figure 3.

Groundwater Monitoring

Groundwater monitoring wells were gauged for depth to water using a down-well

oil/water interface probe. Surveyed elevations of all wells on site were collected and

measured by OTAK Inc., a licensed surveying firm of Kirkland, WA. Top of casing

(toc) elevations were measured using NAVD88 datum, which will be referred to as

mean sea level (msl) for discussion purposes. Groundwater gauging data and

analytical results are summarized in Table 2.

Wells were sampled by no purge sampling methods using disposable polyethylene

bailers or by low-flow purge methods using a peristaltic pump and disposable

polyethylene tubing. Groundwater quality parameters including temperature,

conductivity, dissolved oxygen, oxidation-reduction potential, and pH were collected

at the sampled wells using a Yellow Spring Instruments multi-parameter meter. Field

data sheets are included in Appendix C.

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Samples were collected in laboratory-provided bottles, placed in a cooler with ice,

and were submitted to Pace under standard chain-of-custody protocol. Groundwater

samples were analyzed for the following COCs:

TPH as GRO by Ecology Method NWTPH-Gx;

BTEX, MTBE, and EDC by EPA Method 8260;

EDB by EPA Method 8011; and

Total and dissolved lead by EPA Method 6010.

The laboratory analytical report and chain-of-custody documentation are included in

Appendix B.

First Quarter Groundwater Monitoring Event

ARCADIS conducted the first groundwater monitoring event on February 15, 2013.

Groundwater monitoring wells MW-2, MW-3, MW-4, and MW-5, injection wells IW-1

and IW-2, and vapor extraction well VE-9 were gauged. Monitoring wells MW-2, MW-

3, and MW-4 were sampled using no purge sampling methods and MW-5 was

sampled using low-flow purge methods. A duplicate sample was collected from

monitoring well MW-3.

The depth to groundwater at the site ranged from 4.62 feet below toc in monitoring

well MW-2 to 29.63 feet below toc in monitoring well MW-5. Groundwater elevations

ranged from 50.59 feet above msl in monitoring well MW-5 to 77.89 feet above msl in

monitoring well MW-2. The inferred groundwater flow direction at the site was to the

southwest.

Analytical results for the groundwater samples indicated concentrations of the

following COCs were present above their respective MTCA Method A CLs:

GRO in the sample collected from MW-3 above the MTCA Method A CL of

800 micrograms per liter (µg/L), at concentrations of 9,870 µg/L (MW-3) and

10,300 µg/L (MW-3 Duplicate);

Benzene in the sample collected from MW-3 above the MTCA Method A CL

of 5.0 µg/L at concentrations of 159 µg/L (MW-3) and 181 µg/L (MW-3

Duplicate);

Total xylenes in the sample collected from MW-3 above the MTCA Method A

CL of 1,000 µg/L at concentrations of 1,120 µg/L (MW-3) and 1,520 µg/L

(MW-3 Duplicate); and

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Total lead in the sample collected from MW-5 above the MTCA Method A CL

of 15 µg/L at a concentration of 23.6 µg/L.

Remaining COCs were either not detected above laboratory reporting limits (RLs) or

were detected below MTCA Method A CLs. A groundwater elevation map with

analytical data from this event is presented as Figure 4.

Second Quarter Groundwater Monitoring Event

ARCADIS conducted the second groundwater monitoring activity at the site on May

24, 2013. Monitoring wells MW-2, MW-3, MW-4, and MW-5, injection wells IW-1 and

IW-2, and vapor extraction wells VE-3, VE-5, VE-8, and VE-9 were gauged.

Monitoring wells MW-2, MW-3, MW-4, and MW-5, injection wells IW-1 and IW-2, and

vapor extraction well VE-9 were sampled using low flow purge sampling methods. A

duplicate sample was collected from monitoring well MW-3.

The depth to groundwater at the site ranged from 4.50 feet below toc in monitoring

well MW-2 to 29.05 feet below toc in monitoring well MW-5. Groundwater elevations

ranged from 51.17 feet above msl in monitoring well MW-5 to 78.02 feet above msl in

monitoring well MW-2. The inferred groundwater flow direction at the site was to the

southwest. Vapor extraction wells VE-3 and VE-8 were found to be dry.

Analytical results for the groundwater samples indicate concentrations of the

following COCs were present above the Ecology MTCA Method A CLs:

GRO in the sample collected from MW-3 (29,300 µg/L) and its duplicate

(27,400 µg/L), as well as IW-1 (1,390 µg/L) and IW-2 (1,460 µg/L);

Benzene in the sample collected from MW-3 (278 µg/L) and its duplicate

(268 µg/L), as well in the sample collected from IW-1 (25.3 µg/L) and IW-2

(6.53 µg/L);

Ethylbenzene in the sample collected from MW-3 above the MTCA Method A

CL of 700 µg/L at concentrations of 1,830 µg/L (MW-3) and 1,730 µg/L (MW-

3 Duplicate); and

Total xylenes in the sample collected from MW-3, (5,079 µg/L) and its

duplicate (3,940 µg/L).

Remaining COCs were either not detected above laboratory RLs or were detected

below MTCA Method A CLs. A groundwater elevation map with analytical data from

this event is presented as Figure 5.

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Third Quarter Groundwater Monitoring Event

Blaine Technical Services, Inc. (Blaine Tech) conducted the third 2013 groundwater

monitoring activity at the site on September 19, 2013. Monitoring wells MW-2, MW-3,

MW-4, MW-5, and MW-6, and vapor extraction wells VE-3, VE-5, and VE-8A were

gauged. Monitoring wells MW-2, MW-3, MW-4, MW-5, and MW-6 were sampled

using low flow purge sampling methods. A duplicate sample was collected from

monitoring well MW-3.

The depth to groundwater at the site ranged from 5.31 feet below toc in monitoring

well MW-2 to 31.92 feet below toc in monitoring well MW-5. Groundwater elevations

ranged from 48.30 feet above msl in monitoring well MW-5 to 77.21 feet above msl in

monitoring well MW-2. The inferred groundwater flow direction at the site was to the

southwest.

Analytical results for the groundwater samples indicated concentrations of the

following COCs were present above the Ecology MTCA Method A CLs:

GRO in the sample collected from MW-3 at a concentration of 14,300 µg/L;

Benzene in the sample collected from MW-3 (82.9 µg/L) and its duplicate

(6.4 µg/L);

Ethylbenzene in the sample collected from MW-3 at a concentration of 832

µg/L;

Total xylenes in the sample collected from MW-3 at a concentration of 1,900

µg/L; and

Total lead in the sample collected from MW-3 at a concentration of 18.8

µg/L.

Remaining COCs either were not detected above laboratory RLs or were detected

below MTCA Method A CLs. The results of the parent sample collected from

monitoring well MW-3 were consistent with historical groundwater analytical data;

however, the duplicate sample analytical results were outside of the range of

historical concentrations. This atypical data may be due to a sampling error or likely

an anomaly. A groundwater elevation map with analytical data from this event is

presented as Figure 6.

Ms. Libby Goldstein March 4, 2014

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References:

ARCADIS U.S., Inc. Remedial Action Plan, Former ARCO Facility No. 0651. February

16, 2011.

Attachments:

Table 1 Soil Analytical Data

Table 2 Groundwater Gauging Data and Select Analytical Results

Figure 1 Site Location Map

Figure 2 Site Aerial Map

Figure 3 Soil Analytical Map July 15, 2013

Figure 4 Groundwater Elevation and Analytical Map February 15, 2013

Figure 5 Groundwater Elevation and Analytical Map May 24, 2013

Figure 6 Groundwater Elevation and Analytical Map September 19, 2013

Figure 7 Historical Groundwater Gradient Direction Rose Diagram

Appendix A Boring Logs

Appendix B Laboratory Report and Chain-of-Custody Documentation

Appendix C Groundwater Monitoring Field Data Sheets

Tables

Date Sample Depth GRO Benzene Toluene Ethylbenzene Total Xylenes MTBE EDB EDC Lead

100/30 0.03 7 6 9 0.1 0.005 250

7/15/2013 5.0 - 5.5 < 6.1 < 0.0042 < 0.0042 < 0.0042 < 0.0125 < 0.0042 < 0.0042 < 0.0042 2.37/15/2013 10.0 - 11.5 1,600 < 0.236 16.8 41 208 < 0.590 < 0.590 < 0.590 7.07/15/2013 20.5 - 21.5 < 5.7 < 0.0033 < 0.0033 < 0.0033 < 0.0098 < 0.0033 < 0.0033 < 0.0033 2.9

7/15/2013 16.0 - 16.5 < 5.7 < 0.0036 < 0.0036 < 0.0036 < 0.0107 < 0.0036 < 0.0036 < 0.0036 1.77/15/2013 23.5 - 24.0 < 5.4 < 0.0037 < 0.0037 < 0.0037 < 0.0111 < 0.0037 < 0.0037 < 0.0037 3.8

Sample Depth reported in feet below ground surface

BTEX, MTBE, EDB and EDC analyzed by Environmental Protection Agency Method 8260BLead analyzed by Environmental Protection Agency Method 6020GRO = Total Petroleum Hydrocarbons as Gasoline Range OrganicsBTEX = Benzene, Toluene, Ethylbenzene and Total XylenesMTBE = Methyl Tertiary Butyl EtherEDB = Ethylene DibromideEDC = 1,2-Dichloroethane

BOLD Concentration of analyte exceeds MTCA Method A CLs

Italic Laboratory reporting limit exceeds MTCA Method A CLs

Model Toxics Control Act (MTCA) Method A Cleanup Levels (CLs) in mg/kg

Table 1Soil Analytical Data

WA-00651(6155)5800 Southcenter BLVD, Tukwila, WA 98188

All analytical results are presented in milligrams per kilogram (mg/kg)

Well

VE-8AVE-8A

MW-6

MW-6MW-6

and xylene that is less that 1% of the gasoline mixture (100 mg/kg) and all other gasoline mixtures (30 mg/kg)100/30 = GRO MTCA cleanup levels for gasoline mixtures without benzene present and with a total of ethylbenzene, toluene,

GRO analyzed by Washington State Department of Ecology Northwest Method NWTPH-Gx

WA-00651(6155)- Groundwater Monitoring Report 1 of 1 ARCADIS 1/20/2014 5:47:01 PM

Date Notes TOC DTW GWE GRO DRO HO Benzene Toluene Total Xylenes MTBE EDB EDC Total Lead Dissolved Lead

800/1,000 500 500 5 1,000 1,000 20 0.01 5 15 15

9/23/2011 (P) 80.25 29.34 50.91 -- -- -- -- -- -- -- -- -- -- --12/15/2011 (NS) 80.25 31.23 49.02 -- -- -- -- -- -- -- -- -- -- --

2/9/2012 (NS) 80.25 30.55 49.70 -- -- -- -- -- -- -- -- -- -- --8/27/2012 (NS) 80.25 30.36 49.89 -- -- -- -- -- -- -- -- -- -- --2/15/2013 (NS) 80.25 28.62 51.63 -- -- -- -- -- -- -- -- -- -- --5/24/2013 (LFP) 80.25 27.66 52.59 1,390 -- -- 25.3 3.33 23.28 <1.00 <0.0100 <1.00 <10.0 <10.0

9/23/2011 (P) 80.37 29.51 50.86 -- -- -- -- -- -- -- -- -- -- --12/15/2011 (NS) 80.37 31.24 49.13 -- -- -- -- -- -- -- -- -- -- --

2/9/2012 (NP) 80.37 30.55 49.82 316 -- -- 8.3 1.0 7.7 <1.0 <0.0097 <1.0 <10.0 <10.08/27/2012 (NS) 80.37 30.45 49.92 -- -- -- -- -- -- -- -- -- -- --2/15/2013 (NS) 80.37 28.68 51.69 -- -- -- -- -- -- -- -- -- -- --5/24/2013 (LFP) 80.37 27.88 52.49 1,460 -- -- 6.35 18.8 86 <1.00 <0.0100 <1.00 <10.0 <10.0

9/7/2010 (LFP, H) 82.52 7.81 74.71 <50 -- -- <1.0 <1.0 <2.0 <1.0 <0.010 <1.0 <2.0 <2.02/1/2011 (LFP, H) 82.52 3.89 78.63 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0095 <1.0 <10.0 <10.0

9/23/2011 (LFP) 82.52 6.30 76.22 <50.0 -- -- <1.0 <1.0 <3.0 -- <0.010 <1.0 17.7 <10.012/15/2011 (NS) 82.52 7.06 75.46 -- -- -- -- -- -- -- -- -- -- --

2/9/2012 (NP) 82.52 5.88 76.64 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0098 <1.0 <10.0 <10.08/27/2012 (NP) 82.52 7.49 75.03 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0098 <1.0 <10.0 <10.02/15/2013 (NP) 82.52 4.63 77.89 <100 -- -- <1.0 <1.0 <3.0 <1.0 -- -- <3.0 <3.05/24/2013 (LFP) 82.52 4.50 78.02 <100 -- -- <1.00 <1.00 <2 <1.00 -- -- <10.0 <10.09/19/2013 (LFP) 82.52 5.31 77.21 <100 -- -- <1.0 <1.0 <3.0 <1.0 -- -- <10.0 <10.0

9/7/2010 (LFP, H) 80.07 31.11 48.96 2,300 -- -- 52 90 410 <10 <0.010 <10 <2.0 <2.09/7/2010 (Dup)(LFP, H) 80.07 31.11 48.96 1,400 -- -- 64 170 1,200 <10 <0.010 <10 <2.0 <2.0

10/19/2010 (LFP) 80.07 32.05 48.02 -- -- -- -- -- -- -- -- -- 36 <2.02/1/2011 (LFP, H) 80.07 28.29 51.78 8,970 -- -- 88.4 58.4 1,410 <1.0 <0.0094 <1.0 <10.0 <10.0

9/23/2011 (P) 80.07 29.27 50.80 64,200 -- -- 500 555 9,940 -- 0.040 <1.0 201 <10.012/15/2011 (P) 80.07 31.02 49.05 -- -- -- -- -- -- -- -- -- -- --

1/4/2012 (P) 80.08 -- -- 49,100 -- -- 280 120 7,970 <1.0 -- <1.0 <10.0 <10.02/9/2012 (NP) 80.07 30.35 49.72 57,100 -- -- 136 50.3 4,740 <1.0 <0.0098 3.9 20.6 <10.0

8/27/2012 (LFP) 80.07 30.19 49.88 77,700 -- -- 463 82.4 8,990 <1.0 <0.010 <1.0 <10.0 <10.02/15/2013 (NP) 80.07 28.44 51.63 9,870 -- -- 159 19.1 1,120 <5.0 -- <5.0 <3.0 <3.02/15/2013 (Dup)(NP) 80.07 28.44 51.63 10,300 -- -- 181 25.1 1,520 <5.0 -- -- -- --5/24/2013 (LFP) 80.07 27.59 52.48 29,300 -- -- 278(D) 59.1 5,079(D) <1.00 <0.0100 <1.00 <10.0 <10.05/24/2013 (Dup)(LFP) 80.07 27.59 52.48 27,400 -- -- 268(D) 53.3 4,940(D) <1.00 -- -- <10.0 <10.09/19/2013 (LFP) 80.07 30.73 49.34 14,300 -- -- 82.9 17.5 1,900 <5.0 <0.0095 <5.0 18.8 <10.09/19/2013 (Dup)(LFP) 80.07 30.73 49.34 578 -- -- 6.4 <1.0 41.1 10.0 -- -- <10.0 <10.0

9/7/2010 (LFP, H) 80.46 22.93 57.53 <50 -- -- <1.0 <1.0 <2.0 <1.0 <0.010 <1.0 <2.0 <2.010/19/2010 (LFP) 80.46 -- -- -- -- -- -- -- -- -- -- -- <2.0 <2.0

2/1/2011 (LFP, H) 80.46 17.46 63.00 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0095 <1.0 <10.0 <10.09/23/2011 (P) 80.46 23.14 57.32 <50.0 -- -- <1.0 <1.0 <3.0 -- <0.010 <1.0 199 <10.0

10/19/2011 (LFP) 80.46 21.62 58.84 -- -- -- -- -- -- -- -- -- -- --12/15/2011 (NS) 80.46 21.93 58.53 -- -- -- -- -- -- -- -- -- -- --

2/9/2012 (NP) 80.46 20.04 60.42 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0098 <1.0 <10.0 <10.08/27/2012 (NP) 80.46 22.81 57.65 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0097 <1.0 <10.0 <10.0MW-4 0.0 <1.0

MW-4 0.0 --MW-4 0.0 <1.0

MW-4 0.0 <1.0MW-4 0.0 --

MW-4 -- --MW-4 0.0 <1.0

MW-4 0.0 <1.0

MW-3 0.0 832MW-3 0.0 51.7

MW-3 0.0 1,820(D)MW-3 0.0 1,730(D)

MW-3 0.0 412MW-3 0.0 543

MW-3 0.0 1,240MW-3 0.0 2,820

MW-3 0.0 --MW-3 -- 2,070

MW-3 0.0 542MW-3 0.0 2,710

MW-3 0.0 260MW-3 0.0 --

MW-3 0.0 89

MW-2 0.0 <1.00MW-2 0.0 <1.0

MW-2 0.0 <1.0MW-2 0.0 <1.0

MW-2 0.0 --MW-2 0.0 <1.0

MW-2 0.0 <1.0MW-2 0.0 <1.0

MW-2 0.0 <1.0

IW-2 0.0 --IW-2 0.0 68.7(D)

IW-2 0.0 12.2IW-2 0.0 --

IW-2 0.0 --IW-2 0.0 --

IW-1 0.0 129(D)

IW-1 0.0 --IW-1 0.0 --

IW-1 0.0 --IW-1 0.0 --

Model Toxics Control Act (MTCA) Method A Cleanup Levels (CLs) in µg/L 700

IW-1 0.0 --

Table 2Groundwater Gauging Data and Select Analytical Results

WA-00651(6155)5800 Southcenter BLVD, Tukwila, WA 98188

All analytical results are presented in micrograms per liter (μg/L)

Well NAPL Ethylbenzene

WA-00651(6155)- Groundwater Monitoring Report 1 of 2 ARCADIS 1/20/2014 5:47:01 PM

Date Notes TOC DTW GWE GRO DRO HO Benzene Toluene Total Xylenes MTBE EDB EDC Total Lead Dissolved Lead

800/1,000 500 500 5 1,000 1,000 20 0.01 5 15 15Model Toxics Control Act (MTCA) Method A Cleanup Levels (CLs) in µg/L 700

Table 2Groundwater Gauging Data and Select Analytical Results

WA-00651(6155)5800 Southcenter BLVD, Tukwila, WA 98188

All analytical results are presented in micrograms per liter (μg/L)

Well NAPL Ethylbenzene

2/15/2013 (NP) 80.46 19.67 60.79 <100 -- -- <1.0 <1.0 <3.0 <1.0 -- -- <3.0 <3.05/24/2013 (LFP) 80.46 19.30 61.16 <100 -- -- <1.00 <1.00 2.85 <1.00 -- -- <10.0 <10.09/19/2013 (LFP) 80.46 20.41 60.05 <100 -- -- <1.0 <1.0 <3.0 <1.0 -- -- <10.0 <10.0

8/27/2012 (NP, NE) 80.22 31.90 48.32 <50.0 -- -- <1.0 <1.0 <3.0 <1.0 <0.0097 <1.0 41.9 <10.02/15/2013 (LFP, NE) 80.22 29.63 50.59 <100 -- -- <1.0 2.4 <3.0 <1.0 -- <1.0 23.6 <3.05/24/2013 (LFP) 80.22 29.05 51.17 <100 -- -- <1.00 <1.00 2.23 <1.00 <0.0100 <1.00 <10.0 <10.09/19/2013 (LFP) 80.22 31.92 48.30 <100 -- -- <1.0 <1.0 <3.0 <1.0 -- -- <10.0 <10.0

9/19/2013 (LFP) 80.40 28.35 52.05 282 -- -- <1.0 <1.0 <3.0 <1.0 <0.0095 <1.0 14.2 <10.0

5/24/2013 (DRY) -- -- -- -- -- -- -- -- -- -- -- -- -- --9/19/2013 (NS) 80.99 11.69 69.30 -- -- -- -- -- -- -- -- -- -- --

5/24/2013 (NS) 81.49 10.28 71.21 -- -- -- -- -- -- -- -- -- -- --9/19/2013 (NS) 81.49 10.96 70.53 -- -- -- -- -- -- -- -- -- -- --

5/24/2013 (DRY) -- -- -- -- -- -- -- -- -- -- -- -- -- --

9/19/2013 (NS) 80.16 26.25 53.91 -- -- -- -- -- -- -- -- -- -- --

8/27/2012 (NS, NE) 80.77 22.19 58.58 -- -- -- -- -- -- -- -- -- -- --2/15/2013 (NS, NE) 80.77 21.03 59.74 -- -- -- -- -- -- -- -- -- -- --5/24/2013 (LFP) 80.77 20.62 60.15 <100 -- -- <1.00 <1.00 1.73 <1.00 <0.0100 <1.00 <10.0 <10.0

BOLD

Data collected prior to 2010 have been provided by previous consultants and are included as historical reference only Site resurveyed in December 2013. TOC elevation in reference to vertical datum N.A.V.D. 88 and horizontal datum NAD 83/98 H = Sample was prepped or analyzed beyond the specified holding time

NE = Not established

constituent detected above MTCA Cleanup Levels

D = The sample was diluted

BTEX = Benzene, Toluene, Ethylbenzene and Total XylenesLFP = Low flow purge samplingGRO, DRO, HO methods by Ecology NW Methods; BTEX, MTBE and EDB by 8260B, lead by EPA 6000/7000 Series, EDC by EPA 8011800/1,000 = GRO MTCA cleanup levels with benzene present (800 μg/L) and without (1,000 μg/L)

GRO = Total Petroleum Hydrocarbons - Gasoline Range OrganicsDRO = Total Petroleum Hydrocarbons - Diesel Range OrganicsHO = Total Petroleum Hydrocarbons- Heavy Oil Range OrganicsEDB = Ethylene DibromideEDC = 1,2-DichloroethaneMTBE = Methyl Tertiary Butyl Ether

DTW = Depth to water below TOCTOC/DTW/NAPL/GWE measurements are in feet (ft) -- = Not analyzed/not applicableDUP = Duplicate sampleNAPL = Non-Aqueous Phase Liquid Thickness

VE-9 0.0 <1.00

msl = Mean sea levelTOC = Top of casingGWE = Groundwater elevation above msl

VE-9 0.0 --VE-9 0.0 --

VE-8A 0.0 --

VE-8 -- --

VE-5 0.0 --VE-5 0.0 --

VE-3 -- --VE-3 0.0 --

MW-6 0.0 5.8

MW-5 0.0 <1.0

MW-5 0.0 <1.0MW-5 0.0 <1.00

MW-5 0.0 <1.0

MW-4 0.0 <1.00MW-4 0.0 <1.0

MW-4 0.0 <1.0

WA-00651(6155)- Groundwater Monitoring Report 2 of 2 ARCADIS 1/20/2014 5:47:01 PM

Figures

REFERENCE: BASE MAP USGS 7.5. MIN. TOPO. KING COUNTY, TUKWILA, WASHINGTON

Approximate Scale: 1 in. = 2000 ft.

0 2000'

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SITE

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SITE LOCATION MAP

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LOCATION

BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

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SOURCE: GOOGLE EARTH

SITE

BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

rbrauchla
Polygon
rbrauchla
Line
rbrauchla
Line

VE-6

VE-3

VE-4

IW-1

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VE-9

VE-5

MW-1

VE-2

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MW-2

MW-3

MW-4

VE-7

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VE-8A

Approximate Scale: 1 in. = 25 ft.

25'

50'

FIGURE

SOIL ANALYTICAL MAP

JULY 15, 2013

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BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

THIS MAP PREPARED FROM A FIELD

SURVEY BY OTAK ON MAY 10, 2010 &

UPDATED ON DECEMBER 2013

0

MW-2

VE-3

VE-2

LEGEND

VAPOR EXTRACTION WELL LOCATIONS

ABANDONED MONITORING WELL AND VAPOR EXTRACTION WELLS

GROUNDWATER MONITORING WELL LOCATIONS

INJECTION WELL LOCATION

SOIL VAPOR EXTRACTION (SVE) SYSTEM PIPING

IW-1

LESS THAN LABORATORY REPORTING LIMITS

NOTES:

1. ALL CONCENTRATIONS ARE MEASURED IN

MILLIGRAMS PER LITER (mg/kg).

2. SVE PIPING LOCATIONS ARE APPROXIMATE.

<

BOLD ANALYTE DETECTED ABOVE MODEL TOXICS CONTROL ACT

(MTCA) METHOD A CLEANUP LEVELS

SAMPLE ID

DATE Collection Date

DEPTH Sample Depth (feet below ground surface)

GRO Gasoline Range Organics (mg/kg)

B Benzene (mg/kg)

T Toluene (mg/kg)

E Ethylbenzene (mg/kg)

X Total Xylenes (mg/kg)

MTBE Methyl Tertiary Butyl Ether (mg/kg)

EDB 1,2-Dibromoethane (mg/kg)

EDC 1,2-Dichloroethane (mg/kg)

Pb Lead (mg/kg)

MW-6

DATE 7/15/2013 7/15/2013 7/15/2013

DEPTH 5.0-5.5 10.0-11.5 20.5-21.5

GRO < 6.1 1,600 < 5.7

B < 0.0042 < 0.236 < 0.0033

T < 0.0042 16.8 < 0.0033

E < 0.0042 41.0 < 0.0033

X < 0.0125 208 < 0.0098

MTBE < 0.0042 < 0.590 < 0.0033

EDB < 0.0042 < 0.590 < 0.0033

EDC < 0.0042 < 0.590 < 0.0033

Pb 2.3 7.0 2.9

VE-8A

DATE 7/15/2013 7/15/2013

DEPTH 16.0-16.5 23.5-24.0

GRO < 5.7 < 5.4

B < 0.0036 < 0.0037

T < 0.0036 < 0.0037

E < 0.0036 < 0.0037

X < 0.0107 < 0.0111

MTBE < 0.0036 < 0.0037

EDB < 0.0036 < 0.0037

EDC < 0.0036 < 0.0037

Pb 1.7 3.8

7

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IW-1

IW-2

VE-9

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MW-1

VE-2

VE-1

MW-2

(77.89)

MW-3

(51.63)

MW-4

(60.79)

VE-7

MW-5

(50.59)

VE-8

(51.63)

(59.74)

(51.69)

Approximate Scale: 1 in. = 25 ft.

25'

50'

FIGURE

GROUNDWATER ELEVATION AND

ANALYTICAL RESULTS

FEBRUARY 15, 2013

4

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BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

THIS MAP PREPARED FROM A FIELD

SURVEY BY OTAK ON MAY 10, 2010 &

UPDATED ON DECEMBER 2013

0

MW-2

VE-3

VE-2

LEGEND

VAPOR EXTRACTION WELL LOCATIONS

ABANDONED MONITORING WELL AND VAPOR EXTRACTION WELLS

GROUNDWATER MONITORING WELL LOCATIONS

INJECTION WELL LOCATION

SOIL VAPOR EXTRACTION (SVE) SYSTEM PIPING

IW-1

LESS THAN LABORATORY REPORTING LIMITS

GROUNDWATER ELEVATION (FEET ABOVE MEAN SEA LEVEL [MSL])

GROUNDWATER FLOW DIRECTION

NOTES:

1. ALL CONCENTRATIONS ARE MEASURED IN

MICROGRAMS PER LITER (µg/L).

2. SVE PIPING LOCATIONS ARE APPROXIMATE.

(51.63)

<

GROUNDWATER ELEVATION CONTOUR IN FEET ABOVE MSL

(DASHED WHERE INFERRED)

MW-2

Date 2/15/13

GRO <100

B <1.0

T <1.0

E <1.0

X <3.0

MTBE <1.0

Pb-T <3.0

Pb-D <3.0

MW-4

Date 2/15/13

GRO <100

B <1.0

T <1.0

E <1.0

X <3.0

MTBE <1.0

Pb-T <3.0

Pb-D <3.0

MW-5

Date 2/15/13

GRO <100

B <1.0

T 2.4

E <1.0

X <3.0

MTBE <1.0

EDC <1.0

EDB <0.01

Pb-T 23.6Pb-D <3.0

10,300 ANALYTE DETECTED ABOVE MODEL TOXICS CONTROL ACT

(MTCA) METHOD A CLEANUP LEVELS

MW-3 [DUP-1]

Date 2/15/13

GRO 9,870 / [10,300]B 159 / [181]T 19.1 / [25.1]

E 412 / [543]

X 1,120 / [1,520]MTBE <5.0 / [<5.0]

EDC <5.0

EDB <0.01

Pb-T <3.0

Pb-D <3.0

Sample ID

Date Date Collected

GRO Gasoline Range Organics (µg/L) / [Duplicate (µg/L)]

B Benzene (µg/L) / [Duplicate (µg/L)]

T Toluene (µg/L) / [Duplicate (µg/L)]

E Ethylbenzene (µg/L) / [Duplicate (µg/L)]

X Total Xylenes (µg/L) / [Duplicate (µg/L)]

MTBE Methyl Tertiary Butyl Ether (µg/L) / [Duplicate (µg/L)]

EDC 1, 2-Dichloroethane (µg/L) / [Duplicate (µg/L)]

EDB Ethylene Dibromide (µg/L) / [Duplicate (µg/L)]

Pb-T Total Lead (µg/L) / [Duplicate (µg/L)]

Pb-D Dissolved Lead (µg/L) / [Duplicate (µg/L)]

VE-6

VE-3

VE-4

IW-1

IW-2

VE-9

VE-5

MW-1

VE-2

VE-1

MW-2

(78.02)

MW-3

(52.48)

MW-4

(61.16)

VE-7

MW-5

(51.17)

VE-8

(52.59)

(60.15)

(52.49)

7

5

.

0

7

5

.

0

6

5

.

0

6

5

.

0

(71.21)

(DRY)

(DRY)

5

5

.

0

5

5

.

0

Approximate Scale: 1 in. = 25 ft.

25'

50'

FIGURE

GROUNDWATER ELEVATION AND

ANALYTICAL RESULTS

MAY 24, 2013

5

CIT

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: 3/3/2014 11:30 A

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BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

THIS MAP PREPARED FROM A FIELD

SURVEY BY OTAK ON MAY 10, 2010 &

UPDATED ON DECEMBER 2013

0

MW-2

VE-3

VE-2

LEGEND

VAPOR EXTRACTION WELL LOCATIONS

ABANDONED MONITORING WELL AND VAPOR EXTRACTION WELLS

GROUNDWATER MONITORING WELL LOCATIONS

INJECTION WELL LOCATION

SOIL VAPOR EXTRACTION (SVE) SYSTEM PIPING

IW-1

LESS THAN LABORATORY REPORTING LIMITS

GROUNDWATER ELEVATION (FEET ABOVE MEAN SEA LEVEL [MSL])

GROUNDWATER FLOW DIRECTION

NOTES:

1. ALL CONCENTRATIONS ARE MEASURED IN

MICROGRAMS PER LITER (µg/L).

2. SVE PIPING LOCATIONS ARE APPROXIMATE.

(71.21)

<

GROUNDWATER ELEVATION CONTOUR IN FEET ABOVE MSL

(DASHED WHERE INFERRED)

MW-2

DATE 5/24/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X < 2.0

MTBE < 1.0

T-Pb < 10.0

D-Pb < 10.0

MW-4

DATE 5/24/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X 2.85

MTBE < 1.0

T-Pb < 10.0

D-Pb < 10.0

MW-5

DATE 5/24/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X 2.23

MTBE < 1.0

EDB < 0.0100

EDC < 1.00

T-Pb < 10.0

D-Pb < 10.0

BOLD ANALYTE DETECTED ABOVE MODEL TOXICS CONTROL ACT

(MTCA) METHOD A CLEANUP LEVELS

Sample ID

GRO Gasoline Range Organics (µg/L) [DUPLICATE (µg/L)]

B Benzene (µg/L) [DUPLICATE (µg/L)]

T Toluene (µg/L) [DUPLICATE (µg/L)]

E Ethylbenzene (µg/L) [DUPLICATE (µg/L)]

X Total Xylenes (µg/L) [DUPLICATE (µg/L)]

MTBE Methyl Tertiary Butyl Ether (µg/L) [DUPLICATE (µg/L)]

EDB 1,2-Dibromoethane (µg/L) [DUPLICATE (µg/L)]

EDC 1,2-Dichloroethane (µg/L) [DUPLICATE (µg/L)]

T-Pb Total Lead (µg/L) [DUPLICATE (µg/L)]

D-Pb Dissolved Lead (µg/L) [DUPLICATE (µg/L)]

IW-1

DATE 5/24/2013

GRO 1,390B 25.3T 3.33

E 129

X 23.28

MTBE < 1.0

EDB < 0.0100

EDC < 1.00

T-Pb < 10.0

D-Pb < 10.0

IW-2

DATE 5/24/2013

GRO 1,460B 6.35T 18.8

E 68.7

X 86.0

MTBE < 1.0

EDB < 0.0100

EDC < 1.00

T-Pb < 10.0

D-Pb < 10.0

VE-9

DATE 5/24/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X 1.73

MTBE < 1.0

EDB < 0.0100

EDC < 1.00

T-Pb < 10.0

D-Pb < 10.0

MW-3 [DUP-1]

DATE 5/24/2013

GRO 29,300 / [27,400]B 278 / [268]T 59.1 / [53.3]

E 1,820 / [1,730]X 5,079 / [4,940]MTBE < 1.0 / [< 1.0]

EDB < 0.0100

EDC < 1.00

T-Pb < 10.0 / [< 10.0]

D-Pb < 10.0 / [< 10.0]

60.0

VE-6

VE-3

VE-4

IW-1

IW-2

VE-9

VE-5

MW-1

VE-2

VE-1

MW-2

(77.21)

MW-3

(49.34)

MW-4

(60.05)

VE-7

MW-5

(48.30)

MW-6

(52.05)

VE-8A

(59.74)

(69.30*)

(53.91)

6

0

.

0

(70.53)

7

0

.

0

70.0

5

0

.

0

50.0

Approximate Scale: 1 in. = 25 ft.

25'

50'

FIGURE

GROUNDWATER ELEVATION AND

ANALYTICAL RESULTS

SEPTEMBER 19, 2013

6

CIT

Y:(R

eqd) D

IV

/G

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:(R

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B:(R

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:(O

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M:(R

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M:(O

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R:(O

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N=

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=*R

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G:\E

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nnual\D

WG

\G

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YO

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: 6

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: 2/7/2014 4:10 P

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: 18.1S

(LM

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: ---- P

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: A

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: 3/3/2014 11:31 A

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C

BP WEST COAST PRODUCTS, LLC.

ARCO FACILITY No. 0651 (6155)

5800 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON

ANNUAL SITE STATUS REPORT 2013

THIS MAP PREPARED FROM A FIELD

SURVEY BY OTAK ON MAY 10, 2010 &

UPDATED ON DECEMBER 2013

0

MW-2

VE-3

VE-2

LEGEND

VAPOR EXTRACTION WELL LOCATIONS

ABANDONED MONITORING WELL AND VAPOR EXTRACTION WELLS

GROUNDWATER MONITORING WELL LOCATIONS

INJECTION WELL LOCATION

SOIL VAPOR EXTRACTION (SVE) SYSTEM PIPING

IW-1

GROUNDWATER ELEVATION (FEET ABOVE MEAN SEA LEVEL [MSL])

GROUNDWATER FLOW DIRECTION

NOTES:

1. ALL CONCENTRATIONS ARE MEASURED IN

MICROGRAMS PER LITER (µg/L).

2. SVE PIPING LOCATIONS ARE APPROXIMATE.

(70.53)

*

GROUNDWATER ELEVATION CONTOUR IN FEET ABOVE MSL

(DASHED WHERE INFERRED)

MW-2

DATE 9/19/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X < 3.0

MTBE < 1.0

T-Pb < 10.0

D-Pb < 10.0

MW-4

DATE 9/19/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X < 3.0

MTBE < 1.0

T-Pb < 10.0

D-Pb < 10.0

MW-5

DATE 9/19/2013

GRO < 100

B < 1.0

T < 1.0

E < 1.0

X < 3.0

MTBE < 1.0

T-Pb < 10.0

D-Pb < 10.0

14,300 ANALYTE DETECTED ABOVE MODEL TOXICS CONTROL ACT

(MTCA) METHOD A CLEANUP LEVELS

SAMPLE ID

GRO Gasoline Range Organics (µg/L) [DUPLICATE (µg/L)]

B Benzene (µg/L) [DUPLICATE (µg/L)]

T Toluene (µg/L) [DUPLICATE (µg/L)]

E Ethylbenzene (µg/L) [DUPLICATE (µg/L)]

X Total Xylenes (µg/L) [DUPLICATE (µg/L)]

MTBE Methyl Tertiary Butyl Ether (µg/L) [DUPLICATE (µg/L)]

EDB 1,2-Dibromoethane (µg/L) [DUPLICATE (µg/L)]

EDC 1,2-Dichloroethane (µg/L) [DUPLICATE (µg/L)]

T-Pb Total Lead (µg/L) [DUPLICATE (µg/L)]

D-Pb Dissolved Lead (µg/L) [DUPLICATE (µg/L)]

MW-3

DATE 9/19/2013

GRO

B

17.5 / [< 1.0]

8321,900< 5.0 / [10.0]

EDB < 0.0095

EDC < 5.0

T-Pb 18.8D-Pb < 10.0 / [< 10.0]

MW-6

DATE 9/19/2013

GRO 282

B < 1.0

T < 1.0

E 5.8

X < 3.0

MTBE < 1.0

EDB < 0.0095

EDC < 1.0

T-Pb 14.2

D-Pb < 10.0

T

E

X

MTBE

/ [51.7]

/ [41.1]

/ [< 10.0]

8321,900

18.8

14,300 / [578]

82.9 / [6.4]

LESS THAN LABORATORY REPORTING LIMITS

<

GROUNDWATER ELEVATION NOT USED TO DETERMINE CONTOURS

Legend Note

FIGURE

7

N=NorthNNE= North NortheastNE= NortheastENE= East NortheastE= EastESE= East SoutheastSE=SoutheastSSE= South SoutheastS= SouthSW= SouthwestSSW= South SouthwestWSW= West South WestW= WestWNW= West NorthwestNW=NorthwestNNW= North Northwest5 = Number of Events Observed

Rose diagram based on flow direction calculations from 8 groundwater monitoring events.

BP WEST COAST PRODUCTS, LLC.ARCO FACILITY NO. 0651 (6155)

5800 SOUTHCENTER BLVD, TUKWILA, WASHINGTON

HISTORICAL GROUNDWATER FLOW DIRECTION ROSE DIAGRAM

ANNUAL SITE STATUS REPORT 2013

0

1

2

3

4

5

6

7

N

NNE

NE

ENE

E

ESE

SE

SSE

S

SSW

SW

WSW

W

WNW

NW

NNW

Groundwater Flow Direction

Appendix A

Boring Logs

Date Start/Finish:Drilling Company:Driller's Name:Drilling Method:Auger Size:Rig Type:Sampling Method:

Stratigraphic DescriptionWell/BoringConstruction

Descriptions By:

Casing Elevation:Easting:

Surface Elevation:Borehole Depth:

Well/Boring ID:

Client:

Location:

Northing:

Sam

ple

Run

Num

ber

ELE

VA

TIO

N

DE

PTH

Sam

ple/

Int/T

ype

Blo

w C

ount

s

Geo

logi

c C

olum

n

Ana

lytic

al S

ampl

e

US

CS

Cod

e

N-V

alue

PID

Hea

dspa

ce (p

pm)

Rec

over

y (fe

et)

Remarks:

Project Number:Data File:

Page: 1 of 2

Created/Edited by:2/7/2014Date:

0

5

10

15

0

-5

-10

-15

WA-00651 (6155)5800 Southcenter Blvd.Tukwila, WA 98188

Frank Scott

07/15/2013Cascade Drilling

8"CME 75

Split-spoon

80.40

33.5' bgs

Ryan Brauchla

MW-6

BP West Coast Products, LLC

172509.921287520.83

80.73

Hollow Stem Auger

GP09BPNA.WA45WA-651 MW-6.dat

AK - Airknife; bgs - below ground surface; HA - Hand auger; NA - NotApplicable/Available; NR - No Recovery; ppm - parts per million; SS - 2"x1.5' Split-spoonsampler

Ryan Brauchla

CONCRETE

SAND, well graded, 90% moderately well sorted, medium to coarse,subrounded sand; 10% non-plastic fines (silt); moderately well sorted; moist;homogenous 2.5Y 4/4 - dark yellowish brown; mixed lithics and spots ofoxidation 9 (FILL)

Same as above

SANDY SILT 60% medium dense silt, some fine subangular sand, trace finegravel poorly sorted; moist, 2.5YR 4/2 - dark greyish brown; strong HCLO

SILTY SAND 70% fine angular sand with some silt; poor sorting; wet; 2.5YR 3/2very dark greyish brown, HCLO

SANDY SILT 60% dense silt with fine subangular sand; poorly sorted; wet;2.5YR 5/2- greyish brown tightly compacted; no odor

SAND with trace fines; 95+% angular very fine to medium sand; moist; 2.5YR-dark greyish brown; very dense

Same as above, except color: 2.5Y 5/2- greyish brown; very dense

Steel flushmountcover

Locking J-Plug

Concrete pad

CONCRETE

2'' Sch 40 PVCriser

Bentonite seal

52

28

<50

<50

<50

1

2

3

4

5

SW

SW

ML

SM

ML

SW

SW

13.7

0

1,289

31.5

0

5.8

0

AK

SS6.5-8

SS10-11.5

SS12.5-14

SS15-16.6

SS17.5-19

HA

Boring cleared to 6.5 ft bgs by air knife and vacuum truck.NA

0.5'

1.5'

1.5'

1.5'

1'

1'

162230

101216

3050/6"

3050/6"

3850/6"

Date Start/Finish:Drilling Company:Driller's Name:Drilling Method:Auger Size:Rig Type:Sampling Method:

Stratigraphic DescriptionWell/BoringConstruction

Descriptions By:

Casing Elevation:Easting:

Surface Elevation:Borehole Depth:

Well/Boring ID:

Client:

Location:

Northing:

Sam

ple

Run

Num

ber

ELE

VA

TIO

N

DE

PTH

Sam

ple/

Int/T

ype

Blo

w C

ount

s

Geo

logi

c C

olum

n

Ana

lytic

al S

ampl

e

US

CS

Cod

e

N-V

alue

PID

Hea

dspa

ce (p

pm)

Rec

over

y (fe

et)

Remarks:

Project Number:Data File:

Page: 2 of 2

Created/Edited by:2/7/2014Date:

20

25

30

-20

-25

-30

WA-00651 (6155)5800 Southcenter Blvd.Tukwila, WA 98188

Frank Scott

07/15/2013Cascade Drilling

8"CME 75

Split-spoon

80.40

33.5' bgs

Ryan Brauchla

MW-6

BP West Coast Products, LLC

172509.921287520.83

80.73

Hollow Stem Auger

GP09BPNA.WA45WA-651 MW-6.dat

AK - Airknife; bgs - below ground surface; HA - Hand auger; NA - NotApplicable/Available; NR - No Recovery; ppm - parts per million; SS - 2"x1.5' Split-spoonsampler

Ryan Brauchla

SAND with SILT with trace rounded medium GRAVEL; poor sorting; moist; verydense; 2.5Y 4/2 dark greyish brown

SAND with SILT with trace rounded medium GRAVEL; poor sorting; wet; verydense; 2.5Y 4/2 dark greyish brown

SAND with SILT with trace rounded medium GRAVEL; poor sorting; moist towet; very dense; 2.5Y 4/2 dark greyish brown, slight oxidation visible

SILTY SAND medium to coarse angular sand, some non-plastic fines; poorsorting; moist to wet, very dense; 2.5Y 4/2- dark greyish brown

Same as above

Same as above, except in 10YR 4/4- brown

2/12 sand pack

0.020" slot, 2''Sch 40 PVCscreen

<50

<50

<50

<50

<50

<50

6

7

8

9

10

11

SP

SP

SP

SM

SM

SM

0

0

0

0

0

0

SS20-21.5

SS22.5-24

SS25-26.5

SS27.5-29

SS30-31.5

SS32-33.5

1'

1'

1.5'

NR

1'

1'

50/6"

3050/6"

50/6"

50/6"

2350/6"

50/6"

Date Start/Finish:Drilling Company:Driller's Name:Drilling Method:Auger Size:Rig Type:Sampling Method:

Stratigraphic DescriptionWell/BoringConstruction

Descriptions By:

Casing Elevation:Easting:

Surface Elevation:Borehole Depth:

Well/Boring ID:

Client:

Location:

Northing:

Sam

ple

Run

Num

ber

ELE

VA

TIO

N

DE

PTH

Sam

ple/

Int/T

ype

Blo

w C

ount

s

Geo

logi

c C

olum

n

Ana

lytic

al S

ampl

e

US

CS

Cod

e

N-V

alue

PID

Hea

dspa

ce (p

pm)

Rec

over

y (fe

et)

Remarks:

Project Number:Data File:

Page: 1 of 2

Created/Edited by:2/7/2014Date:

0

5

10

15

0

-5

-10

-15

WA-00651 (6155)5800 Southcenter Blvd.Tukwila, WA 98188

Frank Scott

07/15/2013Cascade Drilling

10"CME 75

Split-spoon

80.16

31.5' bgs

Ryan Brauchla

VE-8A

BP West Coast Products, LLC

172515.691287529.01

80.78

Hollow Stem Auger

GP09BPNA.WA45WA-651 VE-8A.dat

AK - Airknife; bgs - below ground surface; HA - Hand auger; NA - NotApplicable/Available; NR - No Recovery; ppm - parts per million; SS - 2"x1.5' Split-spoonsampler

Ryan Brauchla

Existing well vault

Bentonite

Sand Pack

Sand Pack

Fine to medium sand with some non-plastic silt; moist; medium dense; 2.5Y4/2- dark greyish brown

Fine to medium sand with some non-plastic silt; moist; medium dense; 2.5Y4/2- dark greyish brown

SILTY SAND fine sand; nonplastic silt; moist; very dense; 7.5YR 4/2- darkreddish grey; subround

Locking J-Plug

18" Steel wellvault

Concrete

4'' Sch 40 PVCriser

Bentonite seal

2/12 Silica sand

28

<50

1

2

SP

SP

SM

0

0

SS15-16.5

SS17.5-19

Boring cleared to 6.5' bgs by air knife and vacuum truck.

Existing vapor extraction well (VE-8) was overdrilled to 15' bgs.

NA

1.5'

1.5'

108

20

2050/6"

Date Start/Finish:Drilling Company:Driller's Name:Drilling Method:Auger Size:Rig Type:Sampling Method:

Stratigraphic DescriptionWell/BoringConstruction

Descriptions By:

Casing Elevation:Easting:

Surface Elevation:Borehole Depth:

Well/Boring ID:

Client:

Location:

Northing:

Sam

ple

Run

Num

ber

ELE

VA

TIO

N

DE

PTH

Sam

ple/

Int/T

ype

Blo

w C

ount

s

Geo

logi

c C

olum

n

Ana

lytic

al S

ampl

e

US

CS

Cod

e

N-V

alue

PID

Hea

dspa

ce (p

pm)

Rec

over

y (fe

et)

Remarks:

Project Number:Data File:

Page: 2 of 2

Created/Edited by:2/7/2014Date:

20

25

30

-20

-25

-30

WA-00651 (6155)5800 Southcenter Blvd.Tukwila, WA 98188

Frank Scott

07/15/2013Cascade Drilling

10"CME 75

Split-spoon

80.16

31.5' bgs

Ryan Brauchla

VE-8A

BP West Coast Products, LLC

172515.691287529.01

80.78

Hollow Stem Auger

GP09BPNA.WA45WA-651 VE-8A.dat

AK - Airknife; bgs - below ground surface; HA - Hand auger; NA - NotApplicable/Available; NR - No Recovery; ppm - parts per million; SS - 2"x1.5' Split-spoonsampler

Ryan Brauchla

SAA, except silt content decreasing to 20%

SAA, except silt content increasing to 30%, clay present

SAND with CLAY; 55% sand and 40% silt and clay; trace medium gravel; moistto wet; very dense; 7.5YR 3/1- very dark grey

SAND; well sorted; little silt (nonplastic), trace fine gravel; angular very dense;wet; 2.5Y 3/1- very dark grey

CLAYEY SAND with some gravel; poorly sorted angular sand; nonplastic silt;fine rounded gravel; poorly sorted; wet; very dense; 10YR 4/3- brown; angular;oxidation and cementation at 31.5'

pack

0.020" slot 4"schedule 40 PVCscreen

<50

<50

<50

<50

<50

3

4

5

6

7

SM

SMSC

SW

SC

0

0

0

0

0

SS20-21.5

SS22.5-24

SS25-26.5

SS27-28.5

SS30-31.5

1'

1'

1'

NR

1.5'

2250/6"

2550/6"

2050/6"

50/6"

50/6"

Appendix B

Laboratory Reports and

Chain-of-Custody Documentation

#=CL#

February 27, 2013

LIMS USE: FR - RICK RODRIGUEZLIMS OBJECT ID: 10220329

10220329Project:Pace Project No.:

RE:

Rick RodriguezArcadis U.S., Inc.2300 Eastlake Ave. ESeattle, WA 98102

WA-6155 (0651)

Dear Rick Rodriguez:Enclosed are the analytical results for sample(s) received by the laboratory on February 15, 2013.The results relate only to the samples included in this report. Results reported herein conform to themost current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unlessotherwise noted in the body of the report.

Some analyses have been subcontracted outside of the Pace Network. The subcontractedlaboratory report has been attached.

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Mariah Peronto

[email protected] Manager

Enclosures

cc: Accounts Payable, Arcadis U.S., Inc.

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Page 1 of 17

Pace Analytical Services, Inc.

1 of 2510220329

#=CP#

CERTIFICATIONS

Pace Project No.:Project:

10220329WA-6155 (0651)

Minnesota Certification IDs1700 Elm Street SE Suite 200, Minneapolis, MN 55414A2LA Certification #: 2926.01Alaska Certification #: UST-078Alaska Certification #MN00064Arizona Certification #: AZ-0014Arkansas Certification #: 88-0680California Certification #: 01155CAColorado Certification #PaceConnecticut Certification #: PH-0256EPA Region 8 Certification #: PaceFlorida/NELAP Certification #: E87605Georgia Certification #: 959Hawaii Certification #PaceIdaho Certification #: MN00064Illinois Certification #: 200011Kansas Certification #: E-10167Louisiana Certification #: 03086Louisiana Certification #: LA080009Maine Certification #: 2007029Maryland Certification #: 322Michigan DEQ Certification #: 9909Minnesota Certification #: 027-053-137Mississippi Certification #: Pace

Montana Certification #: MT CERT0092Nevada Certification #: MN_00064Nebraska Certification #: PaceNew Jersey Certification #: MN-002New York Certification #: 11647North Carolina Certification #: 530North Dakota Certification #: R-036North Dakota Certification #: R-036AOhio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Certification #: MN200001Oregon Certification #: MN300001Pennsylvania Certification #: 68-00563Puerto Rico CertificationTennessee Certification #: 02818Texas Certification #: T104704192Utah Certification #: MN00064Virginia/DCLS Certification #: 002521Virginia/VELAP Certification #: 460163Washington Certification #: C754West Virginia Certification #: 382Wisconsin Certification #: 999407970

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Page 2 of 17

Pace Analytical Services, Inc.

2 of 2510220329

#=SS#

SAMPLE SUMMARY

Pace Project No.:Project:

10220329WA-6155 (0651)

Lab ID Sample ID Matrix Date Collected Date Received

10220329001 MW-2 Water 02/15/13 09:10 02/15/13 11:00

10220329002 MW-3 Water 02/15/13 10:10 02/15/13 11:00

10220329003 MW-4 Water 02/15/13 09:40 02/15/13 11:00

10220329004 MW-5 Water 02/15/13 07:50 02/15/13 11:00

10220329005 Dup-1 Water 02/15/13 00:00 02/15/13 11:00

10220329006 Trip Blank Water 02/15/13 00:00 02/15/13 11:00

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Page 3 of 17

Pace Analytical Services, Inc.

3 of 2510220329

#=SA#

SAMPLE ANALYTE COUNT

Pace Project No.:Project:

10220329WA-6155 (0651)

Lab ID Sample ID MethodAnalytesReported LaboratoryAnalysts

10220329001 MW-2 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

EPA 8260 9 PASI-MEB2

10220329002 MW-3 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

EPA 8260 10 PASI-MEB2

10220329003 MW-4 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

EPA 8260 9 PASI-MEB2

10220329004 MW-5 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

EPA 8260 10 PASI-MEB2

10220329005 Dup-1 NWTPH-Gx/8021 2 PASI-MKT1

EPA 8260 9 PASI-MEB2

10220329006 Trip Blank NWTPH-Gx/8021 2 PASI-MKT1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Page 4 of 17

Pace Analytical Services, Inc.

4 of 2510220329

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10220329WA-6155 (0651)

Sample: MW-2 Lab ID: 10220329001 Collected: 02/15/13 09:10 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 1 02/21/13 01:33100Surrogatesa,a,a-Trifluorotoluene (S) 97 % 1 02/21/13 01:33 98-08-875-125

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 1 02/22/13 19:29 7439-92-102/22/13 10:103.0

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 1 02/22/13 20:13 7439-92-102/22/13 10:223.0

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 1 02/22/13 15:31 71-43-21.0Ethylbenzene ND ug/L 1 02/22/13 15:31 100-41-41.0Methyl-tert-butyl ether ND ug/L 1 02/22/13 15:31 1634-04-41.0Toluene ND ug/L 1 02/22/13 15:31 108-88-31.0Xylene (Total) ND ug/L 1 02/22/13 15:31 1330-20-73.0SurrogatesDibromofluoromethane (S) 100 % 1 02/22/13 15:31 1868-53-775-1251,2-Dichloroethane-d4 (S) 100 % 1 02/22/13 15:31 17060-07-075-125Toluene-d8 (S) 101 % 1 02/22/13 15:31 2037-26-575-1254-Bromofluorobenzene (S) 100 % 1 02/22/13 15:31 460-00-475-125

Sample: MW-3 Lab ID: 10220329002 Collected: 02/15/13 10:10 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 9870 ug/L 5 02/21/13 02:31500Surrogatesa,a,a-Trifluorotoluene (S) 94 % 5 02/21/13 02:31 98-08-875-125

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 1 02/22/13 19:33 7439-92-102/22/13 10:103.0

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 1 02/22/13 20:25 7439-92-102/22/13 10:223.0

8260 MSV UST Analytical Method: EPA 8260

Benzene 159 ug/L 5 02/22/13 17:03 71-43-25.01,2-Dichloroethane ND ug/L 5 02/22/13 17:03 107-06-25.0Ethylbenzene 412 ug/L 5 02/22/13 17:03 100-41-45.0Methyl-tert-butyl ether ND ug/L 5 02/22/13 17:03 1634-04-45.0Toluene 19.1 ug/L 5 02/22/13 17:03 108-88-35.0Xylene (Total) 1120 ug/L 5 02/22/13 17:03 1330-20-715.0

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Date: 02/27/2013 04:51 PM Page 5 of 17

Pace Analytical Services, Inc.

5 of 2510220329

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10220329WA-6155 (0651)

Sample: MW-3 Lab ID: 10220329002 Collected: 02/15/13 10:10 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV UST Analytical Method: EPA 8260

SurrogatesDibromofluoromethane (S) 101 % 5 02/22/13 17:03 1868-53-775-1251,2-Dichloroethane-d4 (S) 95 % 5 02/22/13 17:03 17060-07-075-125Toluene-d8 (S) 100 % 5 02/22/13 17:03 2037-26-575-1254-Bromofluorobenzene (S) 105 % 5 02/22/13 17:03 460-00-475-125

Sample: MW-4 Lab ID: 10220329003 Collected: 02/15/13 09:40 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 1 02/21/13 01:52100Surrogatesa,a,a-Trifluorotoluene (S) 96 % 1 02/21/13 01:52 98-08-875-125

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 1 02/22/13 19:38 7439-92-102/22/13 10:103.0

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 1 02/22/13 20:30 7439-92-102/22/13 10:223.0

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 1 02/22/13 15:47 71-43-21.0Ethylbenzene ND ug/L 1 02/22/13 15:47 100-41-41.0Methyl-tert-butyl ether ND ug/L 1 02/22/13 15:47 1634-04-41.0Toluene ND ug/L 1 02/22/13 15:47 108-88-31.0Xylene (Total) ND ug/L 1 02/22/13 15:47 1330-20-73.0SurrogatesDibromofluoromethane (S) 101 % 1 02/22/13 15:47 1868-53-775-1251,2-Dichloroethane-d4 (S) 99 % 1 02/22/13 15:47 17060-07-075-125Toluene-d8 (S) 98 % 1 02/22/13 15:47 2037-26-575-1254-Bromofluorobenzene (S) 96 % 1 02/22/13 15:47 460-00-475-125

Sample: MW-5 Lab ID: 10220329004 Collected: 02/15/13 07:50 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 1 02/21/13 02:12100Surrogatesa,a,a-Trifluorotoluene (S) 96 % 1 02/21/13 02:12 98-08-875-125

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead 23.6 ug/L 1 02/22/13 19:42 7439-92-102/22/13 10:103.0

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ANALYTICAL RESULTS

Pace Project No.:Project:

10220329WA-6155 (0651)

Sample: MW-5 Lab ID: 10220329004 Collected: 02/15/13 07:50 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 1 02/22/13 20:34 7439-92-102/22/13 10:223.0

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 1 02/21/13 19:33 71-43-21.01,2-Dichloroethane ND ug/L 1 02/21/13 19:33 107-06-21.0Ethylbenzene ND ug/L 1 02/21/13 19:33 100-41-41.0Methyl-tert-butyl ether ND ug/L 1 02/21/13 19:33 1634-04-41.0Toluene 2.4 ug/L 1 02/21/13 19:33 108-88-31.0Xylene (Total) ND ug/L 1 02/21/13 19:33 1330-20-73.0SurrogatesDibromofluoromethane (S) 96 % 1 02/21/13 19:33 1868-53-775-1251,2-Dichloroethane-d4 (S) 96 % 1 02/21/13 19:33 17060-07-075-125Toluene-d8 (S) 99 % 1 02/21/13 19:33 2037-26-575-1254-Bromofluorobenzene (S) 98 % 1 02/21/13 19:33 460-00-475-125

Sample: Dup-1 Lab ID: 10220329005 Collected: 02/15/13 00:00 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 10300 ug/L 10 02/25/13 18:201000Surrogatesa,a,a-Trifluorotoluene (S) 100 % 10 02/25/13 18:20 98-08-875-125

8260 MSV UST Analytical Method: EPA 8260

Benzene 181 ug/L 5 02/22/13 17:19 71-43-25.0Ethylbenzene 543 ug/L 5 02/22/13 17:19 100-41-45.0Methyl-tert-butyl ether ND ug/L 5 02/22/13 17:19 1634-04-45.0Toluene 25.1 ug/L 5 02/22/13 17:19 108-88-35.0Xylene (Total) 1520 ug/L 5 02/22/13 17:19 1330-20-715.0SurrogatesDibromofluoromethane (S) 99 % 5 02/22/13 17:19 1868-53-775-1251,2-Dichloroethane-d4 (S) 98 % 5 02/22/13 17:19 17060-07-075-125Toluene-d8 (S) 99 % 5 02/22/13 17:19 2037-26-575-1254-Bromofluorobenzene (S) 105 % 5 02/22/13 17:19 460-00-475-125

Sample: Trip Blank Lab ID: 10220329006 Collected: 02/15/13 00:00 Received: 02/15/13 11:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx/8021BGx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 1 02/22/13 18:34100Surrogatesa,a,a-Trifluorotoluene (S) 98 % 1 02/22/13 18:34 98-08-875-125

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/10399NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1380574

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 02/20/13 18:45a,a,a-Trifluorotoluene (S) % 96 75-125 02/20/13 18:45

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1380575LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1380576

TPH as Gas ug/L 8791000 88 75-12688882 .4 20a,a,a-Trifluorotoluene (S) % 98 75-12596

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1380577MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10219702002

1380578

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

TPH as Gas ug/L 10000 97 75-13799 .9 301000017300 27000 27300a,a,a-Trifluorotoluene (S) % 90 75-12590

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/10402NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10220329006

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1381627

Associated Lab Samples: 10220329006

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 02/22/13 18:15a,a,a-Trifluorotoluene (S) % 102 75-125 02/22/13 18:15

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1381628LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1381629

TPH as Gas ug/L 8381000 84 75-12682816 3 20a,a,a-Trifluorotoluene (S) % 94 75-12598

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1381630MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10220123005

1381631

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

TPH as Gas ug/L 5000 103 75-137101 .7 3050006010 11100 11100a,a,a-Trifluorotoluene (S) % 95 75-12598

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/10411NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10220329005

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1382628

Associated Lab Samples: 10220329005

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 02/25/13 17:41a,a,a-Trifluorotoluene (S) % 107 75-125 02/25/13 17:41

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1382629LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1382630

TPH as Gas ug/L 8651000 86 75-12683830 4 20a,a,a-Trifluorotoluene (S) % 104 75-12599

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1382837MATRIX SPIKE SAMPLE:MSSpike

Result10220773004

TPH as Gas ug/L 8461000 82 75-137NDa,a,a-Trifluorotoluene (S) % 109 75-125

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102207730051382838SAMPLE DUPLICATE:

TPH as Gas ug/L ND 30NDa,a,a-Trifluorotoluene (S) % 102 598

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/37670EPA 3010

EPA 60106010 MET

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1379701

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Matrix: Water

Analyzed

Lead ug/L ND 3.0 02/22/13 17:43

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1379702LABORATORY CONTROL SAMPLE:LCSSpike

Lead ug/L 8661000 87 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1379703MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10220193001

1379704

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead ug/L 1000 87 75-12589 3 201000ND 872 895

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1379705MATRIX SPIKE SAMPLE:MSSpike

Result10220329004

Lead ug/L 8791000 86 75-12523.6

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/37726EPA 3010

EPA 60106010 MET Dissolved

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1381305

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329004

Matrix: Water

Analyzed

Lead, Dissolved ug/L ND 3.0 02/22/13 20:05

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1381306LABORATORY CONTROL SAMPLE:LCSSpike

Lead, Dissolved ug/L 8691000 87 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1381307MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10220329001

1381308

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead, Dissolved ug/L 1000 87 75-12585 2 201000ND 872 854

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/22911EPA 8260

EPA 82608260 MSV UST-WATER

Associated Lab Samples: 10220329004

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1381010

Associated Lab Samples: 10220329004

Matrix: Water

Analyzed

1,2-Dichloroethane ug/L ND 1.0 02/21/13 18:47Benzene ug/L ND 1.0 02/21/13 18:47Ethylbenzene ug/L ND 1.0 02/21/13 18:47Methyl-tert-butyl ether ug/L ND 1.0 02/21/13 18:47Toluene ug/L ND 1.0 02/21/13 18:47Xylene (Total) ug/L ND 3.0 02/21/13 18:471,2-Dichloroethane-d4 (S) % 97 75-125 02/21/13 18:474-Bromofluorobenzene (S) % 98 75-125 02/21/13 18:47Dibromofluoromethane (S) % 97 75-125 02/21/13 18:47Toluene-d8 (S) % 100 75-125 02/21/13 18:47

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1381011LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dichloroethane ug/L 46.950 94 74-125Benzene ug/L 45.950 92 75-125Ethylbenzene ug/L 45.650 91 75-125Methyl-tert-butyl ether ug/L 48.050 96 74-126Toluene ug/L 47.850 96 75-125Xylene (Total) ug/L 140150 93 75-1251,2-Dichloroethane-d4 (S) % 96 75-1254-Bromofluorobenzene (S) % 101 75-125Dibromofluoromethane (S) % 102 75-125Toluene-d8 (S) % 100 75-125

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1381012MATRIX SPIKE SAMPLE:MSSpike

Result10220329004

1,2-Dichloroethane ug/L 48.450 97 74-128NDBenzene ug/L 49.550 99 70-135NDEthylbenzene ug/L 50.050 99 75-125NDMethyl-tert-butyl ether ug/L 48.750 97 70-132NDToluene ug/L 53.550 102 75-1252.4Xylene (Total) ug/L 153150 100 75-125ND1,2-Dichloroethane-d4 (S) % 95 75-1254-Bromofluorobenzene (S) % 105 75-125Dibromofluoromethane (S) % 101 75-125Toluene-d8 (S) % 99 75-125

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/22912EPA 8260

EPA 82608260 MSV UST-WATER

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329005

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1381379

Associated Lab Samples: 10220329001, 10220329002, 10220329003, 10220329005

Matrix: Water

Analyzed

1,2-Dichloroethane ug/L ND 1.0 02/22/13 11:26Benzene ug/L ND 1.0 02/22/13 11:26Ethylbenzene ug/L ND 1.0 02/22/13 11:26Methyl-tert-butyl ether ug/L ND 1.0 02/22/13 11:26Toluene ug/L ND 1.0 02/22/13 11:26Xylene (Total) ug/L ND 3.0 02/22/13 11:261,2-Dichloroethane-d4 (S) % 98 75-125 02/22/13 11:264-Bromofluorobenzene (S) % 99 75-125 02/22/13 11:26Dibromofluoromethane (S) % 98 75-125 02/22/13 11:26Toluene-d8 (S) % 100 75-125 02/22/13 11:26

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1381380LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dichloroethane ug/L 47.850 96 74-125Benzene ug/L 45.450 91 75-125Ethylbenzene ug/L 45.550 91 75-125Methyl-tert-butyl ether ug/L 47.850 96 74-126Toluene ug/L 47.350 95 75-125Xylene (Total) ug/L 140150 93 75-1251,2-Dichloroethane-d4 (S) % 97 75-1254-Bromofluorobenzene (S) % 102 75-125Dibromofluoromethane (S) % 103 75-125Toluene-d8 (S) % 99 75-125

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1381381MATRIX SPIKE SAMPLE:MSSpike

Result10220432002

1,2-Dichloroethane ug/L 48.150 96 74-128NDBenzene ug/L 49.050 98 70-135NDEthylbenzene ug/L 48.650 97 75-125NDMethyl-tert-butyl ether ug/L 47.550 95 70-132NDToluene ug/L 49.750 99 75-125NDXylene (Total) ug/L 148150 99 75-125ND1,2-Dichloroethane-d4 (S) % 98 75-1254-Bromofluorobenzene (S) % 102 75-125Dibromofluoromethane (S) % 105 75-125Toluene-d8 (S) % 100 75-125

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QUALITY CONTROL DATA

Pace Project No.:Project:

10220329WA-6155 (0651)

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102204320031381382SAMPLE DUPLICATE:

1,2-Dichloroethane ug/L ND 30NDBenzene ug/L ND 30NDEthylbenzene ug/L ND 30NDMethyl-tert-butyl ether ug/L ND 30NDToluene ug/L ND 30NDXylene (Total) ug/L ND 30ND1,2-Dichloroethane-d4 (S) % 100 .51004-Bromofluorobenzene (S) % 98 .999Dibromofluoromethane (S) % 99 .4100Toluene-d8 (S) % 100 198

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QUALIFIERS

Pace Project No.:Project:

10220329WA-6155 (0651)

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution ofthe sample aliquot, or moisture content.ND - Not Detected at or above adjusted reporting limit.J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PRL - Pace Reporting Limit.RL - Reporting Limit.S - Surrogate1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.

LABORATORIES

Pace Analytical Services - MinneapolisPASI-M

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QUALITY CONTROL DATA CROSS REFERENCE TABLE

Pace Project No.:Project:

10220329WA-6155 (0651)

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10220329001 GCV/10399MW-2 NWTPH-Gx/802110220329002 GCV/10399MW-3 NWTPH-Gx/802110220329003 GCV/10399MW-4 NWTPH-Gx/802110220329004 GCV/10399MW-5 NWTPH-Gx/8021

10220329005 GCV/10411Dup-1 NWTPH-Gx/8021

10220329006 GCV/10402Trip Blank NWTPH-Gx/8021

10220329001 MPRP/37670 ICP/15687MW-2 EPA 3010 EPA 601010220329002 MPRP/37670 ICP/15687MW-3 EPA 3010 EPA 601010220329003 MPRP/37670 ICP/15687MW-4 EPA 3010 EPA 601010220329004 MPRP/37670 ICP/15687MW-5 EPA 3010 EPA 6010

10220329001 MPRP/37726 ICP/15689MW-2 EPA 3010 EPA 601010220329002 MPRP/37726 ICP/15689MW-3 EPA 3010 EPA 601010220329003 MPRP/37726 ICP/15689MW-4 EPA 3010 EPA 601010220329004 MPRP/37726 ICP/15689MW-5 EPA 3010 EPA 6010

10220329001 MSV/22912MW-2 EPA 826010220329002 MSV/22912MW-3 EPA 826010220329003 MSV/22912MW-4 EPA 8260

10220329004 MSV/22911MW-5 EPA 8260

10220329005 MSV/22912Dup-1 EPA 8260

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FRIEDMAN & BRUYA, INC. _________________________________________________

ENVIRONMENTAL CHEMISTS

James E. Bruya, Ph.D. 3012 16th Avenue West Yelena Aravkina, M.S. Seattle, WA 98119-2029 Bradley T. Benson, B.S. TEL: (206) 285-8282 Kurt Johnson, B.S. e-mail: [email protected]

February 26, 2013 Mariah Peronto Pace Analytical Minnesota 1700 Elm Street Suite 200 Minneapolis, MN 55414 Dear Ms. Peronto: Included are the results from the testing of material submitted on February 19, 2013 from the WA-6155 (0651) 10220329, F&BI 302276 project. There are 4 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 NAA0226R.DOC

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ENVIRONMENTAL CHEMISTS

1

CASE NARRATIVE This case narrative encompasses samples received on February 19, 2013 by Friedman & Bruya, Inc. from the Pace Analytical Minnesota WA-6155 (0651) 10220329, F&BI 302276 project. Samples were logged in under the laboratory ID’s listed below. Laboratory ID Pace Analytical Minnesota 302276 -01 MW-3 302276 -02 MW-5 All quality control requirements were acceptable.

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ENVIRONMENTAL CHEMISTS

2

Date of Report: 02/26/13 Date Received: 02/19/13 Project: WA-6155 (0651) 10220329, F&BI 302276 Date Extracted: 02/22/13 Date Analyzed: 02/22/13

RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR 1,2-DIBROMOETHANE BY EPA METHOD 8011 MODIFIED

Results Reported as µg/L (ppb) Sample ID EDB Laboratory ID

MW-3 <0.01 302276-01 MW-5 <0.01 302276-02 Method Blank <0.01 EDB 1,2-Dibromoethane

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ENVIRONMENTAL CHEMISTS

3

Date of Report: 02/26/13 Date Received: 02/19/13 Project: WA-6155 (0651) 10220329, F&BI 302276

QUALITY ASSURANCE RESULTS FROM THE ANALYSIS OF WATER SAMPLES FOR

1,2-DIBROMOETHANE BY EPA METHOD 8011 MODIFIED Laboratory Code: Laboratory Control Sample Analyte

Reporting

Units

Spike Level

Percent Recovery

LCS

Percent Recovery

LCSD

Acceptance

Criteria

RPD

(Limit 10) 1,2-Dibromoethane ug/L (ppb) 0.10 99 99 70-130 0

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4

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.

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

22 of 2510220329

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23 of 2510220329

24 of 2510220329

25 of 2510220329

#=CL#

June 05, 2013

LIMS USE: FR - RICK RODRIGUEZLIMS OBJECT ID: 10230056

10230056Project:Pace Project No.:

RE:

Rick RodriguezArcadis U.S., Inc.2300 Eastlake Ave. ESeattle, WA 98102

0651 (6155) ARCO

Dear Rick Rodriguez:Enclosed are the analytical results for sample(s) received by the laboratory on May 24, 2013. Theresults relate only to the samples included in this report. Results reported herein conform to themost current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unlessotherwise noted in the body of the report.

Some analyses have been subcontracted outside of the Pace Network. The subcontractedlaboratory report has been attached.

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Mariah Peronto

[email protected] Manager

Enclosures

cc: Accounts Payable, Arcadis U.S., Inc.

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 1 of 17

1 of 3410230056

#=CP#

CERTIFICATIONS

Pace Project No.:Project:

102300560651 (6155) ARCO

Minnesota Certification IDs1700 Elm Street SE Suite 200, Minneapolis, MN 55414A2LA Certification #: 2926.01Alaska Certification #: UST-078Alaska Certification #MN00064Arizona Certification #: AZ-0014Arkansas Certification #: 88-0680California Certification #: 01155CAColorado Certification #PaceConnecticut Certification #: PH-0256EPA Region 8 Certification #: PaceFlorida/NELAP Certification #: E87605Georgia Certification #: 959Hawaii Certification #PaceIdaho Certification #: MN00064Illinois Certification #: 200011Kansas Certification #: E-10167Louisiana Certification #: 03086Louisiana Certification #: LA080009Maine Certification #: 2007029Maryland Certification #: 322Michigan DEQ Certification #: 9909Minnesota Certification #: 027-053-137Mississippi Certification #: Pace

Montana Certification #: MT CERT0092Nebraska Certification #: PaceNevada Certification #: MN_00064New Jersey Certification #: MN-002New York Certification #: 11647North Carolina Certification #: 530North Dakota Certification #: R-036North Dakota Certification #: R-036AOhio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Certification #: MN200001Oregon Certification #: MN300001Pennsylvania Certification #: 68-00563Puerto Rico CertificationTennessee Certification #: 02818Texas Certification #: T104704192Utah Certification #: MN00064Virginia/DCLS Certification #: 002521Virginia/VELAP Certification #: 460163Washington Certification #: C754West Virginia Certification #: 382Wisconsin Certification #: 999407970

Montana Certification IDs602 South 25th Street, Billings, MT 59101EPA Region 8 Certification #: 8TMS-QIdaho Certification #: MT00012Montana Certification #: MT CERT0040

NVLAP Certification #: 101292-0Minnesota Dept of Health Certification #: 030-999-442Washington Department of Ecology #: C993

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 2 of 17

2 of 3410230056

#=SS#

SAMPLE SUMMARY

Pace Project No.:Project:

102300560651 (6155) ARCO

Lab ID Sample ID Matrix Date Collected Date Received

10230056001 MW-2 Water 05/24/13 09:00 05/24/13 13:00

10230056002 MW-3 Water 05/24/13 11:30 05/24/13 13:00

10230056003 MW-4 Water 05/24/13 09:45 05/24/13 13:00

10230056004 MW-5 Water 05/24/13 07:30 05/24/13 13:00

10230056005 IW-1 Water 05/24/13 11:00 05/24/13 13:00

10230056006 IW-2 Water 05/24/13 12:30 05/24/13 13:00

10230056007 VE-9 Water 05/24/13 10:05 05/24/13 13:00

10230056008 DUP-1 Water 05/24/13 00:00 05/24/13 13:00

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 3 of 17

3 of 3410230056

#=SA#

SAMPLE ANALYTE COUNT

Pace Project No.:Project:

102300560651 (6155) ARCO

Lab ID Sample ID MethodAnalytesReported LaboratoryAnalysts

10230056001 MW-2 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

10230056002 MW-3 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

10230056003 MW-4 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

10230056004 MW-5 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

10230056005 IW-1 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 2 PASI-MIP

EPA 300.0 1 PASI-MTEJS

10230056006 IW-2 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 2 PASI-MIP

EPA 300.0 1 PASI-MTEJS

10230056007 VE-9 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

10230056008 DUP-1 NWTPH-Gx/8021 2 PASI-MKT1

EPA 6010 1 PASI-MIP

EPA 6010 1 PASI-MIP

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 4 of 17

4 of 3410230056

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

102300560651 (6155) ARCO

Sample: MW-2 Lab ID: 10230056001 Collected: 05/24/13 09:00 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 05/30/13 03:37100 1Surrogatesa,a,a-Trifluorotoluene (S) 87 % 05/30/13 03:37 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 18:43 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:14 7439-92-105/31/13 14:4310.0 1

Sample: MW-3 Lab ID: 10230056002 Collected: 05/24/13 11:30 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 29300 ug/L 05/30/13 15:222500 25Surrogatesa,a,a-Trifluorotoluene (S) 89 % 05/30/13 15:22 98-08-875-125 25

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 18:47 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:26 7439-92-105/31/13 14:4310.0 1

Sample: MW-4 Lab ID: 10230056003 Collected: 05/24/13 09:45 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 05/30/13 03:57100 1Surrogatesa,a,a-Trifluorotoluene (S) 88 % 05/30/13 03:57 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:00 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:31 7439-92-105/31/13 14:4310.0 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 5 of 17

5 of 3410230056

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

102300560651 (6155) ARCO

Sample: MW-5 Lab ID: 10230056004 Collected: 05/24/13 07:30 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 05/30/13 04:17100 1Surrogatesa,a,a-Trifluorotoluene (S) 88 % 05/30/13 04:17 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:05 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:35 7439-92-105/31/13 14:4310.0 1

Sample: IW-1 Lab ID: 10230056005 Collected: 05/24/13 11:00 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 1390 ug/L 05/30/13 07:17100 1Surrogatesa,a,a-Trifluorotoluene (S) 92 % 05/30/13 07:17 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:09 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:40 7439-92-105/31/13 14:4310.0 1Magnesium, Dissolved 40500 ug/L 06/03/13 19:40 7439-95-405/31/13 14:43500 1

300.0 IC Anions Analytical Method: EPA 300.0

Sulfate 4.0 mg/L 06/01/13 13:15 14808-79-82.0 2

Sample: IW-2 Lab ID: 10230056006 Collected: 05/24/13 12:30 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 1460 ug/L 05/30/13 07:37100 1Surrogatesa,a,a-Trifluorotoluene (S) 108 % 05/30/13 07:37 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:16 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:47 7439-92-105/31/13 14:4310.0 1Magnesium, Dissolved 17200 ug/L 06/03/13 19:47 7439-95-405/31/13 14:43500 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 6 of 17

6 of 3410230056

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

102300560651 (6155) ARCO

Sample: IW-2 Lab ID: 10230056006 Collected: 05/24/13 12:30 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

300.0 IC Anions Analytical Method: EPA 300.0

Sulfate 16.2 mg/L 06/01/13 05:59 14808-79-85.0 5

Sample: VE-9 Lab ID: 10230056007 Collected: 05/24/13 10:05 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 05/30/13 07:57100 1Surrogatesa,a,a-Trifluorotoluene (S) 89 % 05/30/13 07:57 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:21 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 19:59 7439-92-105/31/13 14:4310.0 1

Sample: DUP-1 Lab ID: 10230056008 Collected: 05/24/13 00:00 Received: 05/24/13 13:00 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 27400 ug/L 05/30/13 09:171000 10Surrogatesa,a,a-Trifluorotoluene (S) 90 % 05/30/13 09:17 98-08-875-125 10

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 05/31/13 19:25 7439-92-105/31/13 11:3010.0 1

6010 MET ICP, Dissolved Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 06/03/13 20:04 7439-92-105/31/13 14:4310.0 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 7 of 17

7 of 3410230056

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

102300560651 (6155) ARCO

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/10822NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10230056001, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007, 10230056008

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1442942

Associated Lab Samples: 10230056001, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007, 10230056008

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 05/30/13 02:57a,a,a-Trifluorotoluene (S) % 87 75-125 05/30/13 02:57

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1442943LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1442944

TPH as Gas ug/L 9291000 93 75-12690897 4 20a,a,a-Trifluorotoluene (S) % 95 75-12592

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 8 of 17

8 of 3410230056

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

102300560651 (6155) ARCO

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/10825NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10230056002

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1444150

Associated Lab Samples: 10230056002

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 05/30/13 13:01a,a,a-Trifluorotoluene (S) % 87 75-125 05/30/13 13:01

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1444151LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1444152

TPH as Gas ug/L 9561000 96 75-12692920 4 20a,a,a-Trifluorotoluene (S) % 92 75-12593

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1445152MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10230056002

1445153

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

TPH as Gas ug/L 25000 105 75-137113 4 302500029300 55700 57700a,a,a-Trifluorotoluene (S) % 104 75-125104

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 9 of 17

9 of 3410230056

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

102300560651 (6155) ARCO

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/39531EPA 3010

EPA 60106010 MET

Associated Lab Samples: 10230056001, 10230056002, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007,10230056008

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1443208

Associated Lab Samples: 10230056001, 10230056002, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007,10230056008

Matrix: Water

Analyzed

Lead ug/L ND 10.0 05/31/13 17:27

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1443209LABORATORY CONTROL SAMPLE:LCSSpike

Lead ug/L 9651000 97 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1443210MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10229317002

1443211

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead ug/L 1000 104 75-125105 .6 201000 1060 1070

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 10 of 17

10 of 3410230056

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

102300560651 (6155) ARCO

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/39529EPA 3010

EPA 60106010 MET Dissolved

Associated Lab Samples: 10230056001, 10230056002, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007,10230056008

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1443169

Associated Lab Samples: 10230056001, 10230056002, 10230056003, 10230056004, 10230056005, 10230056006, 10230056007,10230056008

Matrix: Water

Analyzed

Lead, Dissolved ug/L ND 10.0 06/03/13 19:06Magnesium, Dissolved ug/L ND 500 06/03/13 19:06

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1443170LABORATORY CONTROL SAMPLE:LCSSpike

Lead, Dissolved ug/L 9821000 98 80-120Magnesium, Dissolved ug/L 947010000 95 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1443171MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10230056001

1443172

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead, Dissolved ug/L 1000 99 75-125101 2 201000ND 997 1020Magnesium, Dissolved ug/L 10000 91 75-12595 1 201000026400 35500 35900

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

Page 11 of 17

11 of 3410230056

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

102300560651 (6155) ARCO

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MT/12178EPA 300.0

EPA 300.0300.0 IC Anions

Associated Lab Samples: 10230056005, 10230056006

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1445540

Associated Lab Samples: 10230056005, 10230056006

Matrix: Water

Analyzed

Sulfate mg/L ND 1.0 06/01/13 04:24

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1445541LABORATORY CONTROL SAMPLE:LCSSpike

Sulfate mg/L 9.910 99 90-110

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1445542MATRIX SPIKE SAMPLE:MSSpike

Result10230056005

Sulfate mg/L 23.420 97 90-1104.0

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102300560061445543SAMPLE DUPLICATE:

Sulfate mg/L 15.8 2 2016.2

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

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Page 12 of 17

12 of 3410230056

#=QL#

QUALIFIERS

Pace Project No.:Project:

102300560651 (6155) ARCO

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution ofthe sample aliquot, or moisture content.ND - Not Detected at or above adjusted reporting limit.J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PRL - Pace Reporting Limit.RL - Reporting Limit.S - Surrogate1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.

LABORATORIES

Pace Analytical Services - MinneapolisPASI-MPace Analytical Services - MontanaPASI-MT

BATCH QUALIFIERS

Batch: GCV/10822A matrix spike/matrix spike duplicate was not performed for this batch due to insufficient sample volume.[M5]

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

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Page 13 of 17

13 of 3410230056

#=CR#

QUALITY CONTROL DATA CROSS REFERENCE TABLE

Pace Project No.:Project:

102300560651 (6155) ARCO

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10230056001 GCV/10822MW-2 NWTPH-Gx/8021

10230056002 GCV/10825MW-3 NWTPH-Gx/8021

10230056003 GCV/10822MW-4 NWTPH-Gx/802110230056004 GCV/10822MW-5 NWTPH-Gx/802110230056005 GCV/10822IW-1 NWTPH-Gx/802110230056006 GCV/10822IW-2 NWTPH-Gx/802110230056007 GCV/10822VE-9 NWTPH-Gx/802110230056008 GCV/10822DUP-1 NWTPH-Gx/8021

10230056001 MPRP/39531 ICP/16562MW-2 EPA 3010 EPA 601010230056002 MPRP/39531 ICP/16562MW-3 EPA 3010 EPA 601010230056003 MPRP/39531 ICP/16562MW-4 EPA 3010 EPA 601010230056004 MPRP/39531 ICP/16562MW-5 EPA 3010 EPA 601010230056005 MPRP/39531 ICP/16562IW-1 EPA 3010 EPA 601010230056006 MPRP/39531 ICP/16562IW-2 EPA 3010 EPA 601010230056007 MPRP/39531 ICP/16562VE-9 EPA 3010 EPA 601010230056008 MPRP/39531 ICP/16562DUP-1 EPA 3010 EPA 6010

10230056001 MPRP/39529 ICP/16569MW-2 EPA 3010 EPA 601010230056002 MPRP/39529 ICP/16569MW-3 EPA 3010 EPA 601010230056003 MPRP/39529 ICP/16569MW-4 EPA 3010 EPA 601010230056004 MPRP/39529 ICP/16569MW-5 EPA 3010 EPA 601010230056005 MPRP/39529 ICP/16569IW-1 EPA 3010 EPA 601010230056006 MPRP/39529 ICP/16569IW-2 EPA 3010 EPA 601010230056007 MPRP/39529 ICP/16569VE-9 EPA 3010 EPA 601010230056008 MPRP/39529 ICP/16569DUP-1 EPA 3010 EPA 6010

10230056005 MT/12178IW-1 EPA 300.010230056006 MT/12178IW-2 EPA 300.0

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 06/05/2013 01:54 PM

Pace Analytical Services, Inc.

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June 05, 2013

Pace Analytical MinnesotaMariah Peronto

Attention Mariah Peronto:

RE: 0651 (6155) ARCOLab ID: 1305216

1700 Elm Street, Ste. 200Minneapolis, Minnesota 55414

3600 Fremont Ave. N.Seattle, WA 98103

T: (206) 352-3790F: (206) 352-7178

[email protected]

Fremont Analytical, Inc. received 8 sample(s) on 5/30/2013 for the analyses presented in the following report.

Michael Dee

This report consists of the following:

- Case Narrative - Analytical Results - Applicable Quality Control Summary Reports - Chain of Custody

All analyses were performed consistent with the Quality Assurance program of Fremont Analytical, Inc. Please contact the laboratory if you should have any questions about the results.

Thank you for using Fremont Analytical.

Sincerely,

Sr. Chemist / Principal

1,2-Dibromoethane (EDB) by EPA Method 8011Volatile Organic Compounds by EPA Method 8260

www.fremontanalytical.com

Page 1 of 1718 of 3410230056

06/05/2013Date:

Project: 0651 (6155) ARCOCLIENT: Pace Analytical Minnesota

Lab Order: 1305216

Work Order Sample Summary

Lab Sample ID Client Sample ID Date/Time ReceivedDate/Time Collected

1305216-001 MW-2 05/24/2013 9:00 AM 05/30/2013 11:40 AM1305216-002 MW-3 05/24/2013 11:30 AM 05/30/2013 11:40 AM1305216-003 MW-4 05/24/2013 9:45 AM 05/30/2013 11:40 AM1305216-004 MW-5 05/24/2013 7:30 AM 05/30/2013 11:40 AM1305216-005 IW-1 05/24/2013 11:00 AM 05/30/2013 11:40 AM1305216-006 IW-2 05/24/2013 12:30 PM 05/30/2013 11:40 AM1305216-007 VE-9 05/24/2013 10:05 AM 05/30/2013 11:40 AM1305216-008 DUP-1 05/24/2013 12:00 AM 05/30/2013 11:40 AM

Note: If no "Time Collected" is supplied, a default of 12:00AM is assigned

Page 2 of 1719 of 3410230056

Project: 0651 (6155) ARCOCLIENT: Pace Analytical Minnesota

6/5/2013

Case Narrative1305216

Date:WO#:

I. SAMPLE RECEIPT:Samples receipt information is recorded on the attached Sample Receipt Checklist.

II. GENERAL REPORTING COMMENTS:Results are reported on a wet weight basis unless dry-weight correction is denoted in the units field on the analytical report ("mg/kg-dry" or "ug/kg-dry").

Matrix Spike (MS) and MS Duplicate (MSD) samples are tested from an analytical batch of "like" matrix to check for possible matrix effect. The MS and MSD will provide site specific matrix data only for those samples which are spiked by the laboratory. The sample chosen for spike purposes may or may not have been a sample submitted in this sample delivery group. The validity of the analytical procedures for which data is reported in this analytical report is determined by the Laboratory Control Sample (LCS) and the Method Blank (MB). The LCS and the MB are processed with the samples and the MS/MSD to ensure method criteria are achieved throughout the entire analytical process.

III. ANALYSES AND EXCEPTIONS:Exceptions associated with this report will be footnoted in the analytical results page(s) or the quality control summary page(s) and/or noted below.

Page 3 of 1720 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: MW-2

Collection Date: 5/24/2013 9:00:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-001

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 6:42:00 PM1.00 µg/L 1NDBenzene 6/1/2013 6:42:00 PM1.00 µg/L 1NDToluene 6/1/2013 6:42:00 PM1.00 µg/L 1NDEthylbenzene 6/1/2013 6:42:00 PM1.00 µg/L 1NDm,p-Xylene 6/1/2013 6:42:00 PM1.00 µg/L 1NDo-Xylene 6/1/2013 6:42:00 PM1.00 µg/L 1ND Surr: Dibromofluoromethane 6/1/2013 6:42:00 PM72.1-122 %REC 1117 Surr: Toluene-d8 6/1/2013 6:42:00 PM62.1-129 %REC 197.4 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 6:42:00 PM66.8-124 %REC 1101

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 4 of 1721 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: MW-3

Collection Date: 5/24/2013 11:30:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-002

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

1,2-Dibromoethane (EDB) by EPA Method 8011 Analyst: MDBatch ID: 4724

1,2-Dibromoethane (EDB) 6/5/2013 8:19:00 PM0.0100 µg/L 1ND

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 7:09:00 PM1.00 µg/L 1ND1,2-DCA 6/1/2013 7:09:00 PM1.00 µg/L 1NDBenzene D 6/3/2013 8:58:00 PM50.0 µg/L 50278Toluene 6/1/2013 7:09:00 PM1.00 µg/L 159.1Ethylbenzene D 6/3/2013 8:58:00 PM50.0 µg/L 501,820m,p-Xylene D 6/3/2013 8:58:00 PM50.0 µg/L 504,120o-Xylene D 6/3/2013 8:58:00 PM50.0 µg/L 50959 Surr: Dibromofluoromethane 6/1/2013 7:09:00 PM72.1-122 %REC 1116 Surr: Toluene-d8 6/1/2013 7:09:00 PM62.1-129 %REC 1118 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 7:09:00 PM66.8-124 %REC 1115

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 5 of 1722 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: MW-4

Collection Date: 5/24/2013 9:45:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-003

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 8:02:00 PM1.00 µg/L 1NDBenzene 6/3/2013 11:47:00 PM1.00 µg/L 1NDToluene 6/1/2013 8:02:00 PM1.00 µg/L 1NDEthylbenzene 6/3/2013 11:47:00 PM1.00 µg/L 1NDm,p-Xylene 6/3/2013 11:47:00 PM1.00 µg/L 12.35o-Xylene 6/3/2013 11:47:00 PM1.00 µg/L 1ND Surr: Dibromofluoromethane 6/1/2013 8:02:00 PM72.1-122 %REC 1110 Surr: Toluene-d8 6/1/2013 8:02:00 PM62.1-129 %REC 1100 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 8:02:00 PM66.8-124 %REC 196.3

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 6 of 1723 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: MW-5

Collection Date: 5/24/2013 7:30:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-004

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

1,2-Dibromoethane (EDB) by EPA Method 8011 Analyst: MDBatch ID: 4724

1,2-Dibromoethane (EDB) 6/4/2013 11:24:00 PM0.0100 µg/L 1ND

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 8:29:00 PM1.00 µg/L 1ND1,2-DCA 6/1/2013 8:29:00 PM1.00 µg/L 1NDBenzene 6/1/2013 8:29:00 PM1.00 µg/L 1NDToluene 6/1/2013 8:29:00 PM1.00 µg/L 1NDEthylbenzene 6/4/2013 12:14:00 AM1.00 µg/L 1NDm,p-Xylene 6/4/2013 12:14:00 AM1.00 µg/L 11.73o-Xylene 6/4/2013 12:14:00 AM1.00 µg/L 1ND Surr: Dibromofluoromethane 6/1/2013 8:29:00 PM72.1-122 %REC 1112 Surr: Toluene-d8 6/1/2013 8:29:00 PM62.1-129 %REC 197.9 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 8:29:00 PM66.8-124 %REC 1102

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 7 of 1724 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: IW-1

Collection Date: 5/24/2013 11:00:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-005

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

1,2-Dibromoethane (EDB) by EPA Method 8011 Analyst: MDBatch ID: 4724

1,2-Dibromoethane (EDB) 6/5/2013 12:17:00 AM0.0100 µg/L 1ND

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 8:56:00 PM1.00 µg/L 1ND1,2-DCA 6/1/2013 8:56:00 PM1.00 µg/L 1NDBenzene 6/1/2013 8:56:00 PM1.00 µg/L 125.3Toluene 6/1/2013 8:56:00 PM1.00 µg/L 13.33Ethylbenzene D 6/3/2013 7:58:00 PM10.0 µg/L 10129m,p-Xylene 6/1/2013 8:56:00 PM1.00 µg/L 119.6o-Xylene 6/1/2013 8:56:00 PM1.00 µg/L 13.68 Surr: Dibromofluoromethane 6/1/2013 8:56:00 PM72.1-122 %REC 1116 Surr: Toluene-d8 6/1/2013 8:56:00 PM62.1-129 %REC 1104 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 8:56:00 PM66.8-124 %REC 1108

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 8 of 1725 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: IW-2

Collection Date: 5/24/2013 12:30:00 PM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-006

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

1,2-Dibromoethane (EDB) by EPA Method 8011 Analyst: MDBatch ID: 4724

1,2-Dibromoethane (EDB) 6/5/2013 12:41:00 AM0.0100 µg/L 1ND

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 9:23:00 PM1.00 µg/L 1ND1,2-Dichloroethane 6/1/2013 9:23:00 PM1.00 µg/L 1NDBenzene 6/1/2013 9:23:00 PM1.00 µg/L 16.35Toluene 6/1/2013 9:23:00 PM1.00 µg/L 118.8Ethylbenzene D 6/3/2013 8:28:00 PM10.0 µg/L 1068.7m,p-Xylene 6/1/2013 9:23:00 PM1.00 µg/L 172.8o-Xylene 6/1/2013 9:23:00 PM1.00 µg/L 113.2 Surr: Dibromofluoromethane 6/1/2013 9:23:00 PM72.1-122 %REC 1117 Surr: Toluene-d8 6/1/2013 9:23:00 PM62.1-129 %REC 1107 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 9:23:00 PM66.8-124 %REC 1105

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 9 of 1726 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: VE-9

Collection Date: 5/24/2013 10:05:00 AM

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-007

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

1,2-Dibromoethane (EDB) by EPA Method 8011 Analyst: MDBatch ID: 4724

1,2-Dibromoethane (EDB) 6/5/2013 1:06:00 AM0.0100 µg/L 1ND

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 9:50:00 PM1.00 µg/L 1ND1,2-DCA 6/1/2013 9:50:00 PM1.00 µg/L 1NDBenzene 6/1/2013 9:50:00 PM1.00 µg/L 1NDToluene 6/1/2013 9:50:00 PM1.00 µg/L 1NDEthylbenzene 6/4/2013 12:41:00 AM1.00 µg/L 1NDm,p-Xylene 6/4/2013 12:41:00 AM1.00 µg/L 11.23o-Xylene 6/1/2013 9:50:00 PM1.00 µg/L 1ND Surr: Dibromofluoromethane 6/1/2013 9:50:00 PM72.1-122 %REC 1112 Surr: Toluene-d8 6/1/2013 9:50:00 PM62.1-129 %REC 197.8 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 9:50:00 PM66.8-124 %REC 199.2

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 10 of 1727 of 3410230056

Project: 0651 (6155) ARCO

Client Sample ID: DUP-1

Collection Date: 5/24/2013

Matrix: Water

Client: Pace Analytical Minnesota

Lab ID: 1305216-008

Analyses Result Qual Units Date AnalyzedDFRL

Analytical Report

6/5/20131305216

Date Reported:WO#:

Volatile Organic Compounds by EPA Method 8260 Analyst: EMBatch ID: R8720

Methyl tert-butyl ether (MTBE) 6/1/2013 10:17:00 PM1.00 µg/L 1NDBenzene D 6/3/2013 9:57:00 PM50.0 µg/L 50268Toluene 6/1/2013 10:17:00 PM1.00 µg/L 153.3Ethylbenzene D 6/3/2013 9:57:00 PM50.0 µg/L 501,730m,p-Xylene D 6/3/2013 9:57:00 PM50.0 µg/L 503,960o-Xylene D 6/3/2013 9:57:00 PM50.0 µg/L 50980 Surr: Dibromofluoromethane S 6/1/2013 10:17:00 PM72.1-122 %REC 1123 Surr: Toluene-d8 6/1/2013 10:17:00 PM62.1-129 %REC 1113 Surr: 1-Bromo-4-fluorobenzene 6/1/2013 10:17:00 PM66.8-124 %REC 1110

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was requiredE Value above quantitation range H Holding times for preparation or analysis exceededJ Analyte detected below quantitation limits ND Not detected at the Reporting Limit

RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 11 of 1728 of 3410230056

Project: 0651 (6155) ARCOCLIENT: Pace Analytical MinnesotaWork Order: 1305216 QC SUMMARY REPORT

1,2-Dibromoethane (EDB) by EPA Method 8011

6/5/2013Date:

Sample ID: MB-R8753

Batch ID: 4724 Analysis Date: 6/4/2013

Prep Date:

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: MBLKW

RunNo: 8753

SeqNo: 175431

MBLKSampType:

1,2-Dibromoethane (EDB) 0.0100ND

Sample ID: LCS-R8753

Batch ID: 4724 Analysis Date: 6/4/2013

Prep Date:

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: LCSW

RunNo: 8753

SeqNo: 175432

LCSSampType:

1,2-Dibromoethane (EDB) 0.1143 92.7 60 1400.0100 00.106

Sample ID: 1305216-002BDUP

Batch ID: 4724 Analysis Date: 6/4/2013

Prep Date: 6/3/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: MW-3

RunNo: 8753

SeqNo: 175434

DUPSampType:

1,2-Dibromoethane (EDB) 300.0100 0 0ND

Sample ID: 1305216-004BMS

Batch ID: 4724 Analysis Date: 6/4/2013

Prep Date: 6/3/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: MW-5

RunNo: 8753

SeqNo: 175436

MSSampType:

1,2-Dibromoethane (EDB) 0.1143 79.7 60 1400.0100 00.0911

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range

H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit

R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 12 of 1729 of 3410230056

Project: 0651 (6155) ARCOCLIENT: Pace Analytical MinnesotaWork Order: 1305216 QC SUMMARY REPORT

Volatile Organic Compounds by EPA Method 8260

6/5/2013Date:

Sample ID: 1305150-004AMS

Batch ID: R8720 Analysis Date: 6/1/2013

Prep Date: 6/1/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: BATCH

RunNo: 8720

SeqNo: 174691

MSSampType:

Methyl tert-butyl ether (MTBE) 20.00 92.5 70 1301.00 018.51,2-Dichloroethane 20.00 102 62.3 1301.00 020.3Benzene 20.00 84.7 68.7 1321.00 0.830017.8Toluene 20.00 102 68.4 1331.00 3.37023.8Ethylbenzene 20.00 108 67.3 1351.00 0.420022.1m,p-Xylene 40.00 112 63.3 1351.00 1.51046.2o-Xylene 20.00 109 67.8 1311.00 0.670022.4 Surr: Dibromofluoromethane 50.00 67.5 72.1 122 S33.8 Surr: Toluene-d8 50.00 67.6 62.1 12933.8 Surr: 1-Bromo-4-fluorobenzene 50.00 69.6 66.8 12434.8

NOTES:S - Outlying QC recoveries were associated with this sample. The method is in control as indicated by the LCS.

Sample ID: 1305216-002ADUP

Batch ID: R8720 Analysis Date: 6/1/2013

Prep Date: 6/1/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: MW-3

RunNo: 8720

SeqNo: 174700

DUPSampType:

Methyl tert-butyl ether (MTBE) 301.00 0 0ND1,2-Dichloroethane 301.00 0 0NDBenzene 30 E1.00 344.9 0.333346Toluene 301.00 59.13 0.78158.7Ethylbenzene 30 E1.00 790.9 19.4651m,p-Xylene 30 E1.00 1,236 19.21,020o-Xylene 30 E1.00 702.8 16.4596 Surr: Dibromofluoromethane 50.00 121 72.1 122 060.4 Surr: Toluene-d8 50.00 114 62.1 129 056.8 Surr: 1-Bromo-4-fluorobenzene 50.00 107 66.8 124 053.6

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range

H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit

R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 13 of 1730 of 3410230056

Project: 0651 (6155) ARCOCLIENT: Pace Analytical MinnesotaWork Order: 1305216 QC SUMMARY REPORT

Volatile Organic Compounds by EPA Method 8260

6/5/2013Date:

Sample ID: LCS-R8720

Batch ID: R8720 Analysis Date: 6/1/2013

Prep Date: 6/1/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: LCSW

RunNo: 8720

SeqNo: 174711

LCSSampType:

Methyl tert-butyl ether (MTBE) 20.00 113 75.4 1231.00 022.61,2-Dichloroethane 20.00 124 65.8 1261.00 024.7Benzene 20.00 105 75.2 1241.00 020.9Toluene 20.00 118 75.2 1291.00 023.5Ethylbenzene 20.00 119 78 1271.00 023.8m,p-Xylene 40.00 123 77.5 1301.00 049.4o-Xylene 20.00 121 77.6 1261.00 024.2 Surr: Dibromofluoromethane 50.00 82.4 72.1 12241.2 Surr: Toluene-d8 50.00 83.2 62.1 12941.6 Surr: 1-Bromo-4-fluorobenzene 50.00 86.3 66.8 12443.1

Sample ID: MB-R8720

Batch ID: R8720 Analysis Date: 6/1/2013

Prep Date: 6/1/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: MBLKW

RunNo: 8720

SeqNo: 174712

MBLKSampType:

Methyl tert-butyl ether (MTBE) 1.00ND1,2-Dichloroethane 1.00NDBenzene 1.00NDToluene 1.00NDEthylbenzene 1.00NDm,p-Xylene 1.00NDo-Xylene 1.00ND Surr: Dibromofluoromethane 50.00 85.2 72.1 12242.6 Surr: Toluene-d8 50.00 81.9 62.1 12940.9 Surr: 1-Bromo-4-fluorobenzene 50.00 82.3 66.8 12441.1

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range

H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit

R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 14 of 1731 of 3410230056

Project: 0651 (6155) ARCOCLIENT: Pace Analytical MinnesotaWork Order: 1305216 QC SUMMARY REPORT

Volatile Organic Compounds by EPA Method 8260

6/5/2013Date:

Sample ID: CCV-R8720B

Batch ID: R8720 Analysis Date: 6/3/2013

Prep Date: 6/3/2013

Analyte Result SPK value SPK Ref Val %REC RPD Ref Val %RPDLowLimit HighLimit RPDLimit Qual

Units: µg/L

RL

Client ID: CCV

RunNo: 8720

SeqNo: 174824

CCVSampType:

Benzene 20.00 88.4 80 1201.00 017.7Ethylbenzene 20.00 93.2 80 1201.00 018.6m,p-Xylene 40.00 95.4 80 1201.00 038.2o-Xylene 20.00 93.6 80 1201.00 018.7 Surr: Dibromofluoromethane 50.00 100 72.1 12250.2 Surr: Toluene-d8 50.00 102 62.1 12951.1 Surr: 1-Bromo-4-fluorobenzene 50.00 106 66.8 12453.0

Qualifiers: B Analyte detected in the associated Method Blank D Dilution was required E Value above quantitation range

H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits ND Not detected at the Reporting Limit

R RPD outside accepted recovery limits RL Reporting Limit S Spike recovery outside accepted recovery limits

Page 15 of 1732 of 3410230056

Sample Log-In Check List

Client Name: PACEMINN Work Order Number: 1305216

5/30/2013 11:40:00 AM

How was the sample delivered? FedEx

Were custodial seals present? Yes No Not Required

Is Chain of Custody complete? Yes No Not Present

Was an attempt made to cool the samples? Yes No NA

Are samples properly preserved? Yes No

Was preservative added to bottles? Yes No NA

Did all sample containers arrive in good condition?(unbroken) Yes No

Does paperwork match bottle labels? Yes No

Are matrices correctly identified on Chain of Custody? Yes No

Is it clear what analyses were requested? Yes No

Is there headspace present in VOA vials? Yes No NA

1.2.3.

5.

9.10.

11.12.13.

14.15.16. Were all holding times able to be met? Yes No

Chain of Custody

Log In

6. Were all coolers received at a temperature of >0° C to 10.0°C Yes No NA

7. Sample(s) in proper container(s)? Yes No

8. Sufficient sample volume for indicated test(s)? Yes No

Logged by: Clare Griggs

Special Handling (if applicable)

17.

18.

Was client notified of all discrepancies with this order? Yes No NA

Person Notified: Date:

Regarding:

Via: eMail Phone Fax In Person

Additional remarks/Disrepancies

Client Instructions:

By Whom:

Coolers are present? Yes No NA4.

Date Received:

Item Information

Item # Temp ºC ConditionCooler 7.4 Good

Temp Blank 1.4 Good

Page 1 of 1

Page 16 of 1733 of 3410230056

Page 17 of 1734 of 3410230056

#=CL#

July 29, 2013

LIMS USE: FR - SCOTT ZORNLIMS OBJECT ID: 10235466

10235466Project:Pace Project No.:

RE:

Scott ZornArcadis U.S., Inc.2300 Eastlake Ave E. Ste. 200Seattle, WA 98102

WA-00651

Dear Scott Zorn:Enclosed are the analytical results for sample(s) received by the laboratory on July 17, 2013. Theresults relate only to the samples included in this report. Results reported herein conform to themost current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unlessotherwise noted in the body of the report.

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Mariah Peronto

[email protected] Manager

Enclosures

cc: Samuel Miles, Arcadis U.S., Inc.Accounts Payable, Arcadis U.S., Inc.Rick Rodriguez, Arcadis U.S., Inc.

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 1 of 21

#=CP#

CERTIFICATIONS

Pace Project No.:Project:

10235466WA-00651

Minnesota Certification IDs1700 Elm Street SE Suite 200, Minneapolis, MN 55414A2LA Certification #: 2926.01Alaska Certification #: UST-078Alaska Certification #MN00064Arizona Certification #: AZ-0014Arkansas Certification #: 88-0680California Certification #: 01155CAColorado Certification #PaceConnecticut Certification #: PH-0256EPA Region 8 Certification #: PaceFlorida/NELAP Certification #: E87605Georgia Certification #: 959Hawaii Certification #PaceIdaho Certification #: MN00064Illinois Certification #: 200011Kansas Certification #: E-10167Louisiana Certification #: 03086Louisiana Certification #: LA080009Maine Certification #: 2007029Maryland Certification #: 322Michigan DEQ Certification #: 9909Minnesota Certification #: 027-053-137

Mississippi Certification #: PaceMontana Certification #: MT CERT0092Nevada Certification #: MN_00064Nebraska Certification #: PaceNew Jersey Certification #: MN-002New York Certification #: 11647North Carolina Certification #: 530North Dakota Certification #: R-036Ohio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Certification #: MN200001Oregon Certification #: MN300001Pennsylvania Certification #: 68-00563Puerto Rico CertificationTennessee Certification #: 02818Texas Certification #: T104704192Utah Certification #: MN00064Virginia/DCLS Certification #: 002521Virginia/VELAP Certification #: 460163Washington Certification #: C754West Virginia Certification #: 382Wisconsin Certification #: 999407970

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

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Page 2 of 21

#=SS#

SAMPLE SUMMARY

Pace Project No.:Project:

10235466WA-00651

Lab ID Sample ID Matrix Date Collected Date Received

10235466001 MW-6 (5-5.5) Solid 07/15/13 16:15 07/17/13 07:38

10235466002 MW-6 (10-11.5) Solid 07/15/13 15:00 07/17/13 07:38

10235466003 MW-6 (20.5-21.5) Solid 07/15/13 15:15 07/17/13 07:38

10235466004 MW-6 (23-24) Solid 07/15/13 15:30 07/17/13 07:38

10235466005 MW-6 (33-33.5) Solid 07/15/13 15:45 07/17/13 07:38

10235466006 VE-8A (16-16.5) Solid 07/15/13 16:00 07/17/13 07:38

10235466007 VE-8A (23.5-24) Solid 07/15/13 12:00 07/17/13 07:38

10235466008 VE-8A (25.5-26.5) Solid 07/15/13 12:15 07/17/13 07:38

10235466009 VE-8A (31-31.5) Solid 07/15/13 12:30 07/17/13 07:38

10235466010 Trip Blank Solid 07/15/13 00:00 07/17/13 07:38

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 3 of 21

#=SA#

SAMPLE ANALYTE COUNT

Pace Project No.:Project:

10235466WA-00651

Lab ID Sample ID MethodAnalytesReported LaboratoryAnalysts

10235466001 MW-6 (5-5.5) NWTPH-Gx/8021 2 PASI-MKT1

EPA 6020 1 PASI-MRB1

ASTM D2974 1 PASI-MJDL

EPA 8260 10 PASI-MCNC

10235466002 MW-6 (10-11.5) NWTPH-Gx/8021 2 PASI-MKT1

EPA 6020 1 PASI-MRB1

ASTM D2974 1 PASI-MJDL

EPA 8260 10 PASI-MCNC

10235466003 MW-6 (20.5-21.5) NWTPH-Gx/8021 2 PASI-MKT1

EPA 6020 1 PASI-MRB1

ASTM D2974 1 PASI-MJDL

EPA 8260 10 PASI-MCNC

10235466004 MW-6 (23-24) ASTM D2974 1 PASI-MJDL

10235466005 MW-6 (33-33.5) ASTM D2974 1 PASI-MJDL

10235466006 VE-8A (16-16.5) NWTPH-Gx/8021 2 PASI-MKT1

EPA 6020 1 PASI-MRB1

ASTM D2974 1 PASI-MJDL

EPA 8260 10 PASI-MCNC

10235466007 VE-8A (23.5-24) NWTPH-Gx/8021 2 PASI-MKT1

EPA 6020 1 PASI-MRB1

ASTM D2974 1 PASI-MJDL

EPA 8260 10 PASI-MCNC

10235466008 VE-8A (25.5-26.5) ASTM D2974 1 PASI-MJDL

10235466009 VE-8A (31-31.5) ASTM D2974 1 PASI-MJDL

10235466010 Trip Blank NWTPH-Gx/8021 2 PASI-MKT1

EPA 8260 10 PASI-MCNC

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..

Pace Analytical Services, Inc.

Page 4 of 21

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10235466WA-00651

Sample: MW-6 (5-5.5) Lab ID: 10235466001 Collected: 07/15/13 16:15 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas ND mg/kg 07/23/13 02:3607/20/13 12:506.1 1Surrogatesa,a,a-Trifluorotoluene (S) 100 % 07/23/13 02:36 98-08-807/20/13 12:5066-125 1

6020 MET ICPMS Analytical Method: EPA 6020 Preparation Method: EPA 3050

Lead 2.3 mg/kg 07/24/13 18:47 7439-92-107/18/13 10:120.46 100

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 11.1 % 07/19/13 00:000.10 1

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

Benzene ND ug/kg 07/28/13 17:57 71-43-207/18/13 14:524.2 11,2-Dibromoethane (EDB) ND ug/kg 07/28/13 17:57 106-93-407/18/13 14:524.2 11,2-Dichloroethane ND ug/kg 07/28/13 17:57 107-06-207/18/13 14:524.2 1Ethylbenzene ND ug/kg 07/28/13 17:57 100-41-407/18/13 14:524.2 1Methyl-tert-butyl ether ND ug/kg 07/28/13 17:57 1634-04-407/18/13 14:524.2 1Toluene ND ug/kg 07/28/13 17:57 108-88-307/18/13 14:524.2 1Xylene (Total) ND ug/kg 07/28/13 17:57 1330-20-707/18/13 14:5212.5 1Surrogates1,2-Dichloroethane-d4 (S) 109 % 07/28/13 17:57 17060-07-007/18/13 14:5230-150 1Toluene-d8 (S) 99 % 07/28/13 17:57 2037-26-507/18/13 14:5230-150 14-Bromofluorobenzene (S) 104 % 07/28/13 17:57 460-00-407/18/13 14:5230-150 1

Sample: MW-6 (10-11.5) Lab ID: 10235466002 Collected: 07/15/13 15:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas 1600 mg/kg 07/23/13 04:5307/20/13 12:50315 50Surrogatesa,a,a-Trifluorotoluene (S) 102 % 07/23/13 04:53 98-08-807/20/13 12:5066-125 50

6020 MET ICPMS Analytical Method: EPA 6020 Preparation Method: EPA 3050

Lead 7.0 mg/kg 07/24/13 19:07 7439-92-107/18/13 10:120.43 100

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 19.1 % 07/19/13 00:000.10 1

8260 MSV 5030 Med Level Analytical Method: EPA 8260 Preparation Method: EPA 5035/5030B

Benzene ND ug/kg 07/22/13 01:01 71-43-207/21/13 13:06236 101,2-Dibromoethane (EDB) ND ug/kg 07/22/13 01:01 106-93-407/21/13 13:06590 101,2-Dichloroethane ND ug/kg 07/22/13 01:01 107-06-207/21/13 13:06590 10Ethylbenzene 41000 ug/kg 07/22/13 01:01 100-41-407/21/13 13:06590 10

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

Pace Analytical Services, Inc.

Page 5 of 21

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10235466WA-00651

Sample: MW-6 (10-11.5) Lab ID: 10235466002 Collected: 07/15/13 15:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV 5030 Med Level Analytical Method: EPA 8260 Preparation Method: EPA 5035/5030B

Methyl-tert-butyl ether ND ug/kg 07/22/13 01:01 1634-04-407/21/13 13:06590 10Toluene 16800 ug/kg 07/22/13 01:01 108-88-307/21/13 13:06590 10Xylene (Total) 208000 ug/kg 07/22/13 01:01 1330-20-707/21/13 13:061770 10Surrogates1,2-Dichloroethane-d4 (S) 91 % 07/22/13 01:01 17060-07-007/21/13 13:0657-150 10Toluene-d8 (S) 102 % 07/22/13 01:01 2037-26-507/21/13 13:0670-136 104-Bromofluorobenzene (S) 99 % 07/22/13 01:01 460-00-407/21/13 13:0667-138 10

Sample: MW-6 (20.5-21.5) Lab ID: 10235466003 Collected: 07/15/13 15:15 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas ND mg/kg 07/23/13 02:5607/20/13 12:505.7 1Surrogatesa,a,a-Trifluorotoluene (S) 100 % 07/23/13 02:56 98-08-807/20/13 12:5066-125 1

6020 MET ICPMS Analytical Method: EPA 6020 Preparation Method: EPA 3050

Lead 2.9 mg/kg 07/24/13 19:12 7439-92-107/18/13 10:120.49 100

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 12.1 % 07/19/13 00:000.10 1

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

Benzene ND ug/kg 07/28/13 18:16 71-43-207/18/13 14:523.3 11,2-Dibromoethane (EDB) ND ug/kg 07/28/13 18:16 106-93-407/18/13 14:523.3 11,2-Dichloroethane ND ug/kg 07/28/13 18:16 107-06-207/18/13 14:523.3 1Ethylbenzene ND ug/kg 07/28/13 18:16 100-41-407/18/13 14:523.3 1Methyl-tert-butyl ether ND ug/kg 07/28/13 18:16 1634-04-407/18/13 14:523.3 1Toluene ND ug/kg 07/28/13 18:16 108-88-307/18/13 14:523.3 1Xylene (Total) ND ug/kg 07/28/13 18:16 1330-20-707/18/13 14:529.8 1Surrogates1,2-Dichloroethane-d4 (S) 109 % 07/28/13 18:16 17060-07-007/18/13 14:5230-150 1Toluene-d8 (S) 100 % 07/28/13 18:16 2037-26-507/18/13 14:5230-150 14-Bromofluorobenzene (S) 103 % 07/28/13 18:16 460-00-407/18/13 14:5230-150 1

Sample: MW-6 (23-24) Lab ID: 10235466004 Collected: 07/15/13 15:30 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 14.6 % 07/19/13 00:000.10 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

Pace Analytical Services, Inc.

Page 6 of 21

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10235466WA-00651

Sample: MW-6 (33-33.5) Lab ID: 10235466005 Collected: 07/15/13 15:45 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 10.8 % 07/19/13 00:000.10 1

Sample: VE-8A (16-16.5) Lab ID: 10235466006 Collected: 07/15/13 16:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas ND mg/kg 07/23/13 03:1507/20/13 12:505.7 1Surrogatesa,a,a-Trifluorotoluene (S) 96 % 07/23/13 03:15 98-08-807/20/13 12:5066-125 1

6020 MET ICPMS Analytical Method: EPA 6020 Preparation Method: EPA 3050

Lead 1.7 mg/kg 07/24/13 19:17 7439-92-107/18/13 10:120.38 100

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 5.7 % 07/19/13 00:000.10 1

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

Benzene ND ug/kg 07/28/13 18:34 71-43-207/18/13 14:523.6 11,2-Dibromoethane (EDB) ND ug/kg 07/28/13 18:34 106-93-407/18/13 14:523.6 11,2-Dichloroethane ND ug/kg 07/28/13 18:34 107-06-207/18/13 14:523.6 1Ethylbenzene ND ug/kg 07/28/13 18:34 100-41-407/18/13 14:523.6 1Methyl-tert-butyl ether ND ug/kg 07/28/13 18:34 1634-04-407/18/13 14:523.6 1Toluene ND ug/kg 07/28/13 18:34 108-88-307/18/13 14:523.6 1Xylene (Total) ND ug/kg 07/28/13 18:34 1330-20-707/18/13 14:5210.7 1Surrogates1,2-Dichloroethane-d4 (S) 112 % 07/28/13 18:34 17060-07-007/18/13 14:5230-150 1Toluene-d8 (S) 98 % 07/28/13 18:34 2037-26-507/18/13 14:5230-150 14-Bromofluorobenzene (S) 106 % 07/28/13 18:34 460-00-407/18/13 14:5230-150 1

Sample: VE-8A (23.5-24) Lab ID: 10235466007 Collected: 07/15/13 12:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas ND mg/kg 07/23/13 03:3507/20/13 12:505.4 1Surrogatesa,a,a-Trifluorotoluene (S) 99 % 07/23/13 03:35 98-08-807/20/13 12:5066-125 1

6020 MET ICPMS Analytical Method: EPA 6020 Preparation Method: EPA 3050

Lead 3.8 mg/kg 07/24/13 19:22 7439-92-107/18/13 10:120.43 100

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

Pace Analytical Services, Inc.

Page 7 of 21

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10235466WA-00651

Sample: VE-8A (23.5-24) Lab ID: 10235466007 Collected: 07/15/13 12:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 13.7 % 07/19/13 00:000.10 1

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

Benzene ND ug/kg 07/24/13 13:10 71-43-207/18/13 14:523.7 11,2-Dibromoethane (EDB) ND ug/kg 07/24/13 13:10 106-93-407/18/13 14:523.7 11,2-Dichloroethane ND ug/kg 07/24/13 13:10 107-06-207/18/13 14:523.7 1Ethylbenzene ND ug/kg 07/24/13 13:10 100-41-407/18/13 14:523.7 1Methyl-tert-butyl ether ND ug/kg 07/24/13 13:10 1634-04-407/18/13 14:523.7 1Toluene ND ug/kg 07/24/13 13:10 108-88-307/18/13 14:523.7 1Xylene (Total) ND ug/kg 07/24/13 13:10 1330-20-707/18/13 14:5211.1 1Surrogates1,2-Dichloroethane-d4 (S) 84 % 07/24/13 13:10 17060-07-007/18/13 14:5230-150 1Toluene-d8 (S) 94 % 07/24/13 13:10 2037-26-507/18/13 14:5230-150 14-Bromofluorobenzene (S) 102 % 07/24/13 13:10 460-00-407/18/13 14:5230-150 1

Sample: VE-8A (25.5-26.5) Lab ID: 10235466008 Collected: 07/15/13 12:15 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 14.4 % 07/19/13 00:000.10 1

Sample: VE-8A (31-31.5) Lab ID: 10235466009 Collected: 07/15/13 12:30 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "dry-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Dry Weight Analytical Method: ASTM D2974

Percent Moisture 12.6 % 07/19/13 00:000.10 1

Sample: Trip Blank Lab ID: 10235466010 Collected: 07/15/13 00:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "wet-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021 Preparation Method: NWTPH-Gx/8021

TPH as Gas ND mg/kg 07/22/13 22:4107/20/13 12:505.0 1Surrogatesa,a,a-Trifluorotoluene (S) 98 % 07/22/13 22:41 98-08-807/20/13 12:5066-125 1

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

Benzene ND ug/kg 07/25/13 16:04 71-43-207/18/13 14:524.0 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

Pace Analytical Services, Inc.

Page 8 of 21

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10235466WA-00651

Sample: Trip Blank Lab ID: 10235466010 Collected: 07/15/13 00:00 Received: 07/17/13 07:38 Matrix: SolidResults reported on a "wet-weight" basis

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV 5035 Low Level Analytical Method: EPA 8260 Preparation Method: EPA 5035A

1,2-Dibromoethane (EDB) ND ug/kg 07/25/13 16:04 106-93-407/18/13 14:524.0 11,2-Dichloroethane ND ug/kg 07/25/13 16:04 107-06-207/18/13 14:524.0 1Ethylbenzene ND ug/kg 07/25/13 16:04 100-41-407/18/13 14:524.0 1Methyl-tert-butyl ether ND ug/kg 07/25/13 16:04 1634-04-407/18/13 14:524.0 1Toluene ND ug/kg 07/25/13 16:04 108-88-307/18/13 14:524.0 1Xylene (Total) ND ug/kg 07/25/13 16:04 1330-20-707/18/13 14:5212.0 1Surrogates1,2-Dichloroethane-d4 (S) 86 % 07/25/13 16:04 17060-07-007/18/13 14:5230-150 1Toluene-d8 (S) 94 % 07/25/13 16:04 2037-26-507/18/13 14:5230-150 14-Bromofluorobenzene (S) 101 % 07/25/13 16:04 460-00-407/18/13 14:5230-150 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

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Page 9 of 21

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/11090NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx Solid GCV

Associated Lab Samples: 10235466001, 10235466002, 10235466003, 10235466006, 10235466007, 10235466010

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1483375

Associated Lab Samples: 10235466001, 10235466002, 10235466003, 10235466006, 10235466007, 10235466010

Matrix: Solid

Analyzed

TPH as Gas mg/kg ND 5.0 07/22/13 22:21a,a,a-Trifluorotoluene (S) % 98 66-125 07/22/13 22:21

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1483376LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1483377

TPH as Gas mg/kg 49.250 98 75-13411657.8 16 20a,a,a-Trifluorotoluene (S) % 110 66-125106

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1483378MATRIX SPIKE SAMPLE:MSSpike

Result10235580001

TPH as Gas mg/kg 2860 M13230 -214 70-1309780a,a,a-Trifluorotoluene (S) % 98 66-125

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102355800021483379SAMPLE DUPLICATE:

TPH as Gas mg/kg 5140 D666 302590a,a,a-Trifluorotoluene (S) % 101 296

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 07/29/2013 05:22 PM

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Page 10 of 21

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/40628EPA 3050

EPA 60206020 MET

Associated Lab Samples: 10235466001, 10235466002, 10235466003, 10235466006, 10235466007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1480974

Associated Lab Samples: 10235466001, 10235466002, 10235466003, 10235466006, 10235466007

Matrix: Solid

Analyzed

Lead mg/kg ND 0.088 07/25/13 16:51

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1480975LABORATORY CONTROL SAMPLE:LCSSpike

Lead mg/kg 20.919 110 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1480976MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10235217007

1480977

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead mg/kg M618.6 348 75-12570 28 3017.1147 212 159

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/40682ASTM D2974

ASTM D2974Dry Weight/Percent Moisture

Associated Lab Samples: 10235466001, 10235466002, 10235466003, 10235466004, 10235466005, 10235466006, 10235466007,10235466008, 10235466009

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102348160771482716SAMPLE DUPLICATE:

Percent Moisture % 5.8 .6 305.8

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102357570011482717SAMPLE DUPLICATE:

Percent Moisture % 4.1 19 303.4

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/24408EPA 8260

EPA 82608260 MSV 5035 Low Level

Associated Lab Samples: 10235466007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1486000

Associated Lab Samples: 10235466007

Matrix: Solid

Analyzed

1,2-Dibromoethane (EDB) ug/kg ND 4.0 07/24/13 11:461,2-Dichloroethane ug/kg ND 4.0 07/24/13 11:46Benzene ug/kg ND 4.0 07/24/13 11:46Ethylbenzene ug/kg ND 4.0 07/24/13 11:46Methyl-tert-butyl ether ug/kg ND 4.0 07/24/13 11:46Toluene ug/kg ND 4.0 07/24/13 11:46Xylene (Total) ug/kg ND 12.0 07/24/13 11:461,2-Dichloroethane-d4 (S) % 80 30-150 07/24/13 11:464-Bromofluorobenzene (S) % 101 30-150 07/24/13 11:46Toluene-d8 (S) % 93 30-150 07/24/13 11:46

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1486001LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dibromoethane (EDB) ug/kg 52.550 105 72-1251,2-Dichloroethane ug/kg 44.450 89 73-125Benzene ug/kg 46.850 94 70-125Ethylbenzene ug/kg 49.350 99 74-125Methyl-tert-butyl ether ug/kg 46.150 92 70-125Toluene ug/kg 49.250 98 75-125Xylene (Total) ug/kg 154150 102 72-1251,2-Dichloroethane-d4 (S) % 87 30-1504-Bromofluorobenzene (S) % 96 30-150Toluene-d8 (S) % 98 30-150

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1486003MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10235666001

1486004

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

1,2-Dibromoethane (EDB) ug/kg M182.8 68 66-13765 6 3081.2ND 56.0 52.71,2-Dichloroethane ug/kg 82.8 67 66-13577 12 3081.2ND 55.4 62.6Benzene ug/kg 82.8 72 62-13383 13 3081.2ND 59.3 67.7Ethylbenzene ug/kg M182.8 53 70-13461 12 3081.2ND 44.2 49.8Methyl-tert-butyl ether ug/kg 82.8 67 64-13765 4 3081.2ND 55.4 53.2Toluene ug/kg 82.8 69 68-13476 8 3081.2ND 57.9 62.4Xylene (Total) ug/kg ES248 54 71-13763 13 30244ND 135 1541,2-Dichloroethane-d4 (S) % 1M80 30-150824-Bromofluorobenzene (S) % 102 30-15099Toluene-d8 (S) % 100 30-150100

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Page 13 of 21

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/24420EPA 8260

EPA 82608260 MSV 5035 Low Level

Associated Lab Samples: 10235466010

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1487271

Associated Lab Samples: 10235466010

Matrix: Solid

Analyzed

1,2-Dibromoethane (EDB) ug/kg ND 4.0 07/25/13 15:461,2-Dichloroethane ug/kg ND 4.0 07/25/13 15:46Benzene ug/kg ND 4.0 07/25/13 15:46Ethylbenzene ug/kg ND 4.0 07/25/13 15:46Methyl-tert-butyl ether ug/kg ND 4.0 07/25/13 15:46Toluene ug/kg ND 4.0 07/25/13 15:46Xylene (Total) ug/kg ND 12.0 07/25/13 15:461,2-Dichloroethane-d4 (S) % 79 30-150 07/25/13 15:464-Bromofluorobenzene (S) % 101 30-150 07/25/13 15:46Toluene-d8 (S) % 94 30-150 07/25/13 15:46

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1487272LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dibromoethane (EDB) ug/kg 49.550 99 72-1251,2-Dichloroethane ug/kg 40.150 80 73-125Benzene ug/kg 41.550 83 70-125Ethylbenzene ug/kg 47.250 94 74-125Methyl-tert-butyl ether ug/kg 41.750 83 70-125Toluene ug/kg 47.650 95 75-125Xylene (Total) ug/kg 146150 97 72-1251,2-Dichloroethane-d4 (S) % 82 30-1504-Bromofluorobenzene (S) % 99 30-150Toluene-d8 (S) % 102 30-150

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1487274MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10234875007

1487275

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

1,2-Dibromoethane (EDB) ug/kg H182.3 114 66-137124 6 3071.6ND 93.6 88.61,2-Dichloroethane ug/kg H182.3 90 66-13594 9 3071.6ND 73.7 67.6Benzene ug/kg H182.3 98 62-133102 10 3071.6ND 80.8 72.8Ethylbenzene ug/kg H182.3 109 70-134111 12 3071.6ND 90.8 80.6Methyl-tert-butyl ether ug/kg H182.3 98 64-137106 6 3071.6ND 80.7 76.2Toluene ug/kg H182.3 108 68-134113 10 3071.6ND 94.0 85.5Xylene (Total) ug/kg 247 111 71-137115 10 30215ND 278 2521,2-Dichloroethane-d4 (S) % 86 30-150864-Bromofluorobenzene (S) % 100 30-15099Toluene-d8 (S) % 102 30-150101

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/24439EPA 8260

EPA 82608260 MSV 5035 Low Level

Associated Lab Samples: 10235466001, 10235466003, 10235466006

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1488927

Associated Lab Samples: 10235466001, 10235466003, 10235466006

Matrix: Solid

Analyzed

1,2-Dibromoethane (EDB) ug/kg ND 4.0 07/28/13 15:491,2-Dichloroethane ug/kg ND 4.0 07/28/13 15:49Benzene ug/kg ND 4.0 07/28/13 15:49Ethylbenzene ug/kg ND 4.0 07/28/13 15:49Methyl-tert-butyl ether ug/kg ND 4.0 07/28/13 15:49Toluene ug/kg ND 4.0 07/28/13 15:49Xylene (Total) ug/kg ND 12.0 07/28/13 15:491,2-Dichloroethane-d4 (S) % 99 30-150 07/28/13 15:494-Bromofluorobenzene (S) % 103 30-150 07/28/13 15:49Toluene-d8 (S) % 103 30-150 07/28/13 15:49

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1488928LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1488929

1,2-Dibromoethane (EDB) ug/kg 21.220 106 72-12510721.3 .6 201,2-Dichloroethane ug/kg 22.120 110 73-12510621.2 4 20Benzene ug/kg 21.720 108 70-12510621.1 2 20Ethylbenzene ug/kg 20.920 104 74-12510420.8 .5 20Methyl-tert-butyl ether ug/kg 22.220 111 70-12510821.6 3 20Toluene ug/kg 21.520 108 75-12510621.2 1 20Xylene (Total) ug/kg 62.060 103 72-12510362.0 .09 201,2-Dichloroethane-d4 (S) % 105 30-1501024-Bromofluorobenzene (S) % 104 30-150104Toluene-d8 (S) % 101 30-150100

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/24363EPA 5035/5030B

EPA 82608260 MSV 5030 Med Level

Associated Lab Samples: 10235466002

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1483760

Associated Lab Samples: 10235466002

Matrix: Solid

Analyzed

1,2-Dibromoethane (EDB) ug/kg ND 50.0 07/21/13 19:071,2-Dichloroethane ug/kg ND 50.0 07/21/13 19:07Benzene ug/kg ND 20.0 07/21/13 19:07Ethylbenzene ug/kg ND 50.0 07/21/13 19:07Methyl-tert-butyl ether ug/kg ND 50.0 07/21/13 19:07Toluene ug/kg ND 50.0 07/21/13 19:07Xylene (Total) ug/kg ND 150 07/21/13 19:071,2-Dichloroethane-d4 (S) % 97 57-150 07/21/13 19:074-Bromofluorobenzene (S) % 98 67-138 07/21/13 19:07Toluene-d8 (S) % 101 70-136 07/21/13 19:07

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1483761LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1483762

1,2-Dibromoethane (EDB) ug/kg 9391000 94 75-12591908 3 201,2-Dichloroethane ug/kg 8991000 90 72-12589894 .6 20Benzene ug/kg 9241000 92 72-12589895 3 20Ethylbenzene ug/kg 9291000 93 75-12591912 2 20Methyl-tert-butyl ether ug/kg 9191000 92 71-12591906 1 20Toluene ug/kg 9201000 92 75-12589887 4 20Xylene (Total) ug/kg 27603000 92 75-125902690 3 201,2-Dichloroethane-d4 (S) % 93 57-150964-Bromofluorobenzene (S) % 97 67-13897Toluene-d8 (S) % 103 70-136102

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1483763MATRIX SPIKE SAMPLE:MSSpike

Result10235512001

1,2-Dibromoethane (EDB) ug/kg 13801320 104 76-130ND1,2-Dichloroethane ug/kg 13901320 105 66-138NDBenzene ug/kg 14301320 108 71-137NDEthylbenzene ug/kg 14601320 110 75-134NDMethyl-tert-butyl ether ug/kg 14001320 106 65-140NDToluene ug/kg 13901320 105 74-133NDXylene (Total) ug/kg 42503960 107 75-135ND1,2-Dichloroethane-d4 (S) % 91 57-1504-Bromofluorobenzene (S) % 96 67-138Toluene-d8 (S) % 100 70-136

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10235466WA-00651

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102355120021483764SAMPLE DUPLICATE:

1,2-Dibromoethane (EDB) ug/kg ND 30ND1,2-Dichloroethane ug/kg ND 30NDBenzene ug/kg ND 30NDEthylbenzene ug/kg ND 30NDMethyl-tert-butyl ether ug/kg ND 30NDToluene ug/kg ND 30NDXylene (Total) ug/kg ND 30ND1,2-Dichloroethane-d4 (S) % 99 5984-Bromofluorobenzene (S) % 98 799Toluene-d8 (S) % 100 598

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#=QL#

QUALIFIERS

Pace Project No.:Project:

10235466WA-00651

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution ofthe sample aliquot, or moisture content.ND - Not Detected at or above adjusted reporting limit.J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PRL - Pace Reporting Limit.RL - Reporting Limit.S - Surrogate1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.

LABORATORIES

Pace Analytical Services - MinneapolisPASI-M

BATCH QUALIFIERS

Batch: MSV/24439A matrix spike/matrix spike duplicate was not performed for this batch due to insufficient sample volume.[M5]

ANALYTE QUALIFIERS

Sample preserved in lab; results are from sample aliquot taken from a glass jar with headspace.1MThe relative percent difference (RPD) between the sample and sample duplicate exceeded laboratory control limits.D6The reported result is estimated because one or more of the constituent results are qualified as such.ESAnalysis conducted outside the recognized method holding time.H1Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1Matrix spike and Matrix spike duplicate recovery not evaluated against control limits due to sample dilution.M6

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#=CR#

QUALITY CONTROL DATA CROSS REFERENCE TABLE

Pace Project No.:Project:

10235466WA-00651

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10235466001 GCV/11090 GCV/11093MW-6 (5-5.5) NWTPH-Gx/8021 NWTPH-Gx/802110235466002 GCV/11090 GCV/11093MW-6 (10-11.5) NWTPH-Gx/8021 NWTPH-Gx/802110235466003 GCV/11090 GCV/11093MW-6 (20.5-21.5) NWTPH-Gx/8021 NWTPH-Gx/802110235466006 GCV/11090 GCV/11093VE-8A (16-16.5) NWTPH-Gx/8021 NWTPH-Gx/802110235466007 GCV/11090 GCV/11093VE-8A (23.5-24) NWTPH-Gx/8021 NWTPH-Gx/802110235466010 GCV/11090 GCV/11093Trip Blank NWTPH-Gx/8021 NWTPH-Gx/8021

10235466001 MPRP/40628 ICPM/16941MW-6 (5-5.5) EPA 3050 EPA 602010235466002 MPRP/40628 ICPM/16941MW-6 (10-11.5) EPA 3050 EPA 602010235466003 MPRP/40628 ICPM/16941MW-6 (20.5-21.5) EPA 3050 EPA 602010235466006 MPRP/40628 ICPM/16941VE-8A (16-16.5) EPA 3050 EPA 602010235466007 MPRP/40628 ICPM/16941VE-8A (23.5-24) EPA 3050 EPA 6020

10235466001 MPRP/40682MW-6 (5-5.5) ASTM D297410235466002 MPRP/40682MW-6 (10-11.5) ASTM D297410235466003 MPRP/40682MW-6 (20.5-21.5) ASTM D297410235466004 MPRP/40682MW-6 (23-24) ASTM D297410235466005 MPRP/40682MW-6 (33-33.5) ASTM D297410235466006 MPRP/40682VE-8A (16-16.5) ASTM D297410235466007 MPRP/40682VE-8A (23.5-24) ASTM D297410235466008 MPRP/40682VE-8A (25.5-26.5) ASTM D297410235466009 MPRP/40682VE-8A (31-31.5) ASTM D2974

10235466001 MSV/24335 MSV/24439MW-6 (5-5.5) EPA 5035A EPA 826010235466003 MSV/24335 MSV/24439MW-6 (20.5-21.5) EPA 5035A EPA 826010235466006 MSV/24335 MSV/24439VE-8A (16-16.5) EPA 5035A EPA 826010235466007 MSV/24335 MSV/24408VE-8A (23.5-24) EPA 5035A EPA 826010235466010 MSV/24335 MSV/24420Trip Blank EPA 5035A EPA 8260

10235466002 MSV/24363 MSV/24364MW-6 (10-11.5) EPA 5035/5030B EPA 8260

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Page 20 of 21

Page 21 of 21

#=CL#

October 10, 2013

LIMS USE: FR - SAMUEL MILESLIMS OBJECT ID: 10242883

10242883Project:Pace Project No.:

RE:

Samuel MilesArcadis U.S., Inc.2300 Eastlake Ave. ESeattle, WA 98102

ARCO 651

Dear Samuel Miles:Enclosed are the analytical results for sample(s) received by the laboratory on September 21, 2013.The results relate only to the samples included in this report. Results reported herein conform to themost current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unlessotherwise noted in the body of the report.

If you have any questions concerning this report, please feel free to contact me.

Sincerely,

Lori Castille

[email protected] Manager

Enclosures

cc: Accounts Payable, Arcadis U.S., Inc.

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Page 1 of 24

#=CP#

CERTIFICATIONS

Pace Project No.:Project:

10242883ARCO 651

Minnesota Certification IDs1700 Elm Street SE Suite 200, Minneapolis, MN 55414A2LA Certification #: 2926.01Alaska Certification #: UST-078Alaska Certification #MN00064Arizona Certification #: AZ-0014Arkansas Certification #: 88-0680California Certification #: 01155CAColorado Certification #PaceConnecticut Certification #: PH-0256EPA Region 8 Certification #: PaceFlorida/NELAP Certification #: E87605Georgia Certification #: 959Hawaii Certification #PaceIdaho Certification #: MN00064Illinois Certification #: 200011Kansas Certification #: E-10167Louisiana Certification #: 03086Louisiana Certification #: LA080009Maine Certification #: 2007029Maryland Certification #: 322Michigan DEQ Certification #: 9909Minnesota Certification #: 027-053-137

Mississippi Certification #: PaceMontana Certification #: MT CERT0092Nebraska Certification #: PaceNevada Certification #: MN_00064New Jersey Certification #: MN-002New York Certification #: 11647North Carolina Certification #: 530North Dakota Certification #: R-036Ohio VAP Certification #: CL101Oklahoma Certification #: 9507Oregon Certification #: MN200001Oregon Certification #: MN300001Pennsylvania Certification #: 68-00563Puerto Rico CertificationTennessee Certification #: 02818Texas Certification #: T104704192Utah Certification #: MN00064Virginia/DCLS Certification #: 002521Virginia/VELAP Certification #: 460163Washington Certification #: C754West Virginia Certification #: 382Wisconsin Certification #: 999407970

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#=SS#

SAMPLE SUMMARY

Pace Project No.:Project:

10242883ARCO 651

Lab ID Sample ID Matrix Date Collected Date Received

10242883001 MW-2-091913 Water 09/19/13 09:15 09/21/13 09:24

10242883002 MW-3-091913 Water 09/19/13 09:52 09/21/13 09:24

10242883003 MW-4-091913 Water 09/19/13 10:50 09/21/13 09:24

10242883004 MW-5-091913 Water 09/19/13 11:59 09/21/13 09:24

10242883005 MW-6-091913 Water 09/19/13 11:20 09/21/13 09:24

10242883006 TB-0651-091913 Water 09/19/13 08:00 09/21/13 09:24

10242883007 DUP-091913 Water 09/19/13 00:00 09/21/13 09:24

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#=SA#

SAMPLE ANALYTE COUNT

Pace Project No.:Project:

10242883ARCO 651

Lab ID Sample ID MethodAnalytesReportedAnalysts

10242883001 MW-2-091913 NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 8SH2

10242883002 MW-3-091913 EPA 8011 2KL1

NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 9SH2

10242883003 MW-4-091913 NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 8SH2

10242883004 MW-5-091913 NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 8SH2

10242883005 MW-6-091913 EPA 8011 2KL1

NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 9SH2

10242883006 TB-0651-091913 NWTPH-Gx/8021 2LLC

EPA 8260 9SH2

10242883007 DUP-091913 NWTPH-Gx/8021 2LLC

EPA 6010 1IP

EPA 6010 1IP

EPA 8260 8SH2

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#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10242883ARCO 651

Sample: MW-2-091913 Lab ID: 10242883001 Collected: 09/19/13 09:15 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 09/27/13 22:32100 1Surrogatesa,a,a-Trifluorotoluene (S) 89 % 09/27/13 22:32 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 10/07/13 16:20 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/06/13 23:44 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 10/02/13 11:04 71-43-21.0 1Ethylbenzene ND ug/L 10/02/13 11:04 100-41-41.0 1Methyl-tert-butyl ether ND ug/L 10/02/13 11:04 1634-04-41.0 1Toluene ND ug/L 10/02/13 11:04 108-88-31.0 1Xylene (Total) ND ug/L 10/02/13 11:04 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 90 % 10/02/13 11:04 17060-07-075-125 1Toluene-d8 (S) 95 % 10/02/13 11:04 2037-26-575-125 14-Bromofluorobenzene (S) 94 % 10/02/13 11:04 460-00-475-125 1

Sample: MW-3-091913 Lab ID: 10242883002 Collected: 09/19/13 09:52 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8011 GCS EDB and DBCP Analytical Method: EPA 8011 Preparation Method: EPA 8011

1,2-Dibromoethane (EDB) ND ug/L 09/26/13 09:08 106-93-409/24/13 13:500.0095 1Surrogates4-Bromofluorobenzene (S) 84 % 09/26/13 09:08 460-00-409/24/13 13:5070-130 1

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 14300 ug/L 10/06/13 19:31 H12000 20Surrogatesa,a,a-Trifluorotoluene (S) 80 % 10/06/13 19:31 98-08-875-125 20

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead 18.8 ug/L 10/07/13 16:38 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/06/13 23:57 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene 82.9 ug/L 10/02/13 03:15 71-43-25.0 51,2-Dichloroethane ND ug/L 10/02/13 03:15 107-06-25.0 5Ethylbenzene 832 ug/L 10/02/13 03:15 100-41-45.0 5

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 5 of 24

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10242883ARCO 651

Sample: MW-3-091913 Lab ID: 10242883002 Collected: 09/19/13 09:52 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV UST Analytical Method: EPA 8260

Methyl-tert-butyl ether ND ug/L 10/02/13 03:15 1634-04-45.0 5Toluene 17.5 ug/L 10/02/13 03:15 108-88-35.0 5Xylene (Total) 1900 ug/L 10/02/13 03:15 1330-20-715.0 5Surrogates1,2-Dichloroethane-d4 (S) 87 % 10/02/13 03:15 17060-07-075-125 5Toluene-d8 (S) 94 % 10/02/13 03:15 2037-26-575-125 54-Bromofluorobenzene (S) 95 % 10/02/13 03:15 460-00-475-125 5

Sample: MW-4-091913 Lab ID: 10242883003 Collected: 09/19/13 10:50 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 09/27/13 23:12100 1Surrogatesa,a,a-Trifluorotoluene (S) 84 % 09/27/13 23:12 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 10/07/13 16:42 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/07/13 00:02 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 10/01/13 23:19 71-43-21.0 1Ethylbenzene ND ug/L 10/01/13 23:19 100-41-4 M11.0 1Methyl-tert-butyl ether ND ug/L 10/01/13 23:19 1634-04-41.0 1Toluene ND ug/L 10/01/13 23:19 108-88-3 M11.0 1Xylene (Total) ND ug/L 10/01/13 23:19 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 93 % 10/01/13 23:19 17060-07-075-125 1Toluene-d8 (S) 96 % 10/01/13 23:19 2037-26-575-125 14-Bromofluorobenzene (S) 94 % 10/01/13 23:19 460-00-475-125 1

Sample: MW-5-091913 Lab ID: 10242883004 Collected: 09/19/13 11:59 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 09/27/13 23:32100 1Surrogatesa,a,a-Trifluorotoluene (S) 83 % 09/27/13 23:32 98-08-875-125 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 6 of 24

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10242883ARCO 651

Sample: MW-5-091913 Lab ID: 10242883004 Collected: 09/19/13 11:59 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 10/07/13 16:47 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/07/13 00:07 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 10/01/13 23:41 71-43-21.0 1Ethylbenzene ND ug/L 10/01/13 23:41 100-41-41.0 1Methyl-tert-butyl ether ND ug/L 10/01/13 23:41 1634-04-41.0 1Toluene ND ug/L 10/01/13 23:41 108-88-31.0 1Xylene (Total) ND ug/L 10/01/13 23:41 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 90 % 10/01/13 23:41 17060-07-075-125 1Toluene-d8 (S) 94 % 10/01/13 23:41 2037-26-575-125 14-Bromofluorobenzene (S) 93 % 10/01/13 23:41 460-00-475-125 1

Sample: MW-6-091913 Lab ID: 10242883005 Collected: 09/19/13 11:20 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8011 GCS EDB and DBCP Analytical Method: EPA 8011 Preparation Method: EPA 8011

1,2-Dibromoethane (EDB) ND ug/L 09/26/13 09:33 106-93-409/24/13 13:500.0095 1Surrogates4-Bromofluorobenzene (S) 116 % 09/26/13 09:33 460-00-409/24/13 13:5070-130 1

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 282 ug/L 09/27/13 23:52100 1Surrogatesa,a,a-Trifluorotoluene (S) 84 % 09/27/13 23:52 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead 14.2 ug/L 10/07/13 17:00 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/07/13 00:12 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 10/02/13 01:50 71-43-21.0 11,2-Dichloroethane ND ug/L 10/02/13 01:50 107-06-21.0 1Ethylbenzene 5.8 ug/L 10/02/13 01:50 100-41-41.0 1Methyl-tert-butyl ether ND ug/L 10/02/13 01:50 1634-04-41.0 1Toluene ND ug/L 10/02/13 01:50 108-88-31.0 1Xylene (Total) ND ug/L 10/02/13 01:50 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 92 % 10/02/13 01:50 17060-07-075-125 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

Pace Analytical Services, Inc.

Page 7 of 24

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10242883ARCO 651

Sample: MW-6-091913 Lab ID: 10242883005 Collected: 09/19/13 11:20 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV UST Analytical Method: EPA 8260

SurrogatesToluene-d8 (S) 94 % 10/02/13 01:50 2037-26-575-125 14-Bromofluorobenzene (S) 93 % 10/02/13 01:50 460-00-475-125 1

Sample: TB-0651-091913 Lab ID: 10242883006 Collected: 09/19/13 08:00 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas ND ug/L 09/27/13 19:31100 1Surrogatesa,a,a-Trifluorotoluene (S) 84 % 09/27/13 19:31 98-08-875-125 1

8260 MSV UST Analytical Method: EPA 8260

Benzene ND ug/L 10/01/13 22:36 71-43-21.0 11,2-Dichloroethane ND ug/L 10/01/13 22:36 107-06-21.0 1Ethylbenzene ND ug/L 10/01/13 22:36 100-41-41.0 1Methyl-tert-butyl ether ND ug/L 10/01/13 22:36 1634-04-41.0 1Toluene ND ug/L 10/01/13 22:36 108-88-31.0 1Xylene (Total) ND ug/L 10/01/13 22:36 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 92 % 10/01/13 22:36 17060-07-075-125 1Toluene-d8 (S) 95 % 10/01/13 22:36 2037-26-575-125 14-Bromofluorobenzene (S) 96 % 10/01/13 22:36 460-00-475-125 1

Sample: DUP-091913 Lab ID: 10242883007 Collected: 09/19/13 00:00 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

NWTPH-Gx GCV Analytical Method: NWTPH-Gx/8021

TPH as Gas 578 ug/L 09/27/13 22:12100 1Surrogatesa,a,a-Trifluorotoluene (S) 84 % 09/27/13 22:12 98-08-875-125 1

6010 MET ICP Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead ND ug/L 10/07/13 17:05 7439-92-110/05/13 06:4510.0 1

6010 MET ICP, Lab Filtered Analytical Method: EPA 6010 Preparation Method: EPA 3010

Lead, Dissolved ND ug/L 10/07/13 00:16 7439-92-110/05/13 20:5110.0 1

8260 MSV UST Analytical Method: EPA 8260

Benzene 6.4 ug/L 10/02/13 23:10 71-43-21.0 1Ethylbenzene 51.7 ug/L 10/02/13 23:10 100-41-41.0 1Methyl-tert-butyl ether 10.0 ug/L 10/02/13 23:10 1634-04-41.0 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 8 of 24

#=AR#

ANALYTICAL RESULTS

Pace Project No.:Project:

10242883ARCO 651

Sample: DUP-091913 Lab ID: 10242883007 Collected: 09/19/13 00:00 Received: 09/21/13 09:24 Matrix: Water

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

8260 MSV UST Analytical Method: EPA 8260

Toluene ND ug/L 10/02/13 23:10 108-88-31.0 1Xylene (Total) 41.1 ug/L 10/02/13 23:10 1330-20-73.0 1Surrogates1,2-Dichloroethane-d4 (S) 87 % 10/02/13 23:10 17060-07-075-125 1Toluene-d8 (S) 92 % 10/02/13 23:10 2037-26-575-125 14-Bromofluorobenzene (S) 91 % 10/02/13 23:10 460-00-475-125 1

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 9 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/11318NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10242883001, 10242883003, 10242883004, 10242883005, 10242883006, 10242883007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1534533

Associated Lab Samples: 10242883001, 10242883003, 10242883004, 10242883005, 10242883006, 10242883007

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 09/27/13 19:11a,a,a-Trifluorotoluene (S) % 85 75-125 09/27/13 19:11

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1534534LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1534535

TPH as Gas ug/L 10201000 102 75-1261001000 2 20a,a,a-Trifluorotoluene (S) % 77 75-12585

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1539791MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10242986001

1539792

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

TPH as Gas ug/L 1000 125 75-137132 2 3010001600 2850 2920a,a,a-Trifluorotoluene (S) % 109 75-125119

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 10 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

GCV/11346NWTPH-Gx/8021

NWTPH-Gx/8021NWTPH-Gx/8021B Water

Associated Lab Samples: 10242883002

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1540850

Associated Lab Samples: 10242883002

Matrix: Water

Analyzed

TPH as Gas ug/L ND 100 10/06/13 17:30a,a,a-Trifluorotoluene (S) % 97 75-125 10/06/13 17:30

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1540851LABORATORY CONTROL SAMPLE & LCSD:LCSSpike LCSD

% Rec RPDMaxRPD

LCSDResult

1540852

TPH as Gas ug/L 9401000 94 75-12682823 13 20a,a,a-Trifluorotoluene (S) % 105 75-12583

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1546222MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10242883002

1546223

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

TPH as Gas ug/L H120000 85 75-137104 12 302000014300 31300 35200a,a,a-Trifluorotoluene (S) % 116 75-12595

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 11 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/42110EPA 3010

EPA 60106010 MET

Associated Lab Samples: 10242883001, 10242883002, 10242883003, 10242883004, 10242883005, 10242883007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1533780

Associated Lab Samples: 10242883001, 10242883002, 10242883003, 10242883004, 10242883005, 10242883007

Matrix: Water

Analyzed

Lead ug/L ND 10.0 10/07/13 16:12

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1533781LABORATORY CONTROL SAMPLE:LCSSpike

Lead ug/L 9611000 96 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1533782MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10242883001

1533783

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead ug/L 1000 91 75-12594 3 201000ND 912 939

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without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 12 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MPRP/42169EPA 3010

EPA 60106010 MET Dissolved

Associated Lab Samples: 10242883001, 10242883002, 10242883003, 10242883004, 10242883005, 10242883007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1535711

Associated Lab Samples: 10242883001, 10242883002, 10242883003, 10242883004, 10242883005, 10242883007

Matrix: Water

Analyzed

Lead, Dissolved ug/L ND 10.0 10/06/13 23:18

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1535712LABORATORY CONTROL SAMPLE:LCSSpike

Lead, Dissolved ug/L 10201000 102 80-120

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1535713MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10242982001

1535714

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Lead, Dissolved ug/L 1000 102 75-125100 2 201000ND 1020 1000

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 13 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/25138EPA 8260

EPA 82608260 MSV UST-WATER

Associated Lab Samples: 10242883002, 10242883003, 10242883004, 10242883005, 10242883006

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1540483

Associated Lab Samples: 10242883002, 10242883003, 10242883004, 10242883005, 10242883006

Matrix: Water

Analyzed

1,2-Dichloroethane ug/L ND 1.0 10/01/13 21:53Benzene ug/L ND 1.0 10/01/13 21:53Ethylbenzene ug/L ND 1.0 10/01/13 21:53Methyl-tert-butyl ether ug/L ND 1.0 10/01/13 21:53Toluene ug/L ND 1.0 10/01/13 21:53Xylene (Total) ug/L ND 3.0 10/01/13 21:531,2-Dichloroethane-d4 (S) % 91 75-125 10/01/13 21:534-Bromofluorobenzene (S) % 95 75-125 10/01/13 21:53Toluene-d8 (S) % 97 75-125 10/01/13 21:53

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1540484LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dichloroethane ug/L 20.620 103 74-125Benzene ug/L 23.920 120 75-125Ethylbenzene ug/L 23.020 115 75-125Methyl-tert-butyl ether ug/L 22.320 111 74-126Toluene ug/L 22.420 112 75-125Xylene (Total) ug/L 71.060 118 75-1251,2-Dichloroethane-d4 (S) % 93 75-1254-Bromofluorobenzene (S) % 97 75-125Toluene-d8 (S) % 96 75-125

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1542162MATRIX SPIKE SAMPLE:MSSpike

Result10242883003

1,2-Dichloroethane ug/L 22.320 111 74-128NDBenzene ug/L 26.120 131 70-135NDEthylbenzene ug/L 25.4 M120 127 75-125NDMethyl-tert-butyl ether ug/L 23.920 120 70-132NDToluene ug/L 25.3 M120 126 75-125NDXylene (Total) ug/L 77.6 MS60 129 75-125ND1,2-Dichloroethane-d4 (S) % 93 75-1254-Bromofluorobenzene (S) % 95 75-125Toluene-d8 (S) % 97 75-125

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 14 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102428830041542163SAMPLE DUPLICATE:

1,2-Dichloroethane ug/L ND 30NDBenzene ug/L ND 30NDEthylbenzene ug/L ND 30NDMethyl-tert-butyl ether ug/L ND 30NDToluene ug/L ND 30NDXylene (Total) ug/L ND 30ND1,2-Dichloroethane-d4 (S) % 92 2904-Bromofluorobenzene (S) % 94 .593Toluene-d8 (S) % 93 .594

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 15 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/25141EPA 8260

EPA 82608260 MSV UST-WATER

Associated Lab Samples: 10242883001

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1541105

Associated Lab Samples: 10242883001

Matrix: Water

Analyzed

Benzene ug/L ND 1.0 10/02/13 10:43Ethylbenzene ug/L ND 1.0 10/02/13 10:43Methyl-tert-butyl ether ug/L ND 1.0 10/02/13 10:43Toluene ug/L ND 1.0 10/02/13 10:43Xylene (Total) ug/L ND 3.0 10/02/13 10:431,2-Dichloroethane-d4 (S) % 90 75-125 10/02/13 10:434-Bromofluorobenzene (S) % 94 75-125 10/02/13 10:43Toluene-d8 (S) % 94 75-125 10/02/13 10:43

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1541106LABORATORY CONTROL SAMPLE:LCSSpike

Benzene ug/L 25.120 125 75-125Ethylbenzene ug/L 22.920 114 75-125Methyl-tert-butyl ether ug/L 21.620 108 74-126Toluene ug/L 23.420 117 75-125Xylene (Total) ug/L 71.860 120 75-1251,2-Dichloroethane-d4 (S) % 86 75-1254-Bromofluorobenzene (S) % 95 75-125Toluene-d8 (S) % 94 75-125

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1541107MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10243171005

1541108

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

Benzene ug/L 20 131 70-135135 3 3020ND 26.1 27.0Ethylbenzene ug/L M120 124 75-125128 4 3020ND 24.7 25.7Methyl-tert-butyl ether ug/L 20 120 70-132125 4 3020ND 24.0 25.0Toluene ug/L M120 126 75-125129 2 30200.61J 25.9 26.4Xylene (Total) ug/L MS60 128 75-125133 4 3060ND 76.8 79.81,2-Dichloroethane-d4 (S) % 92 75-125924-Bromofluorobenzene (S) % 95 75-12594Toluene-d8 (S) % 95 75-12595

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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Page 16 of 24

#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

MSV/25143EPA 8260

EPA 82608260 MSV UST-WATER

Associated Lab Samples: 10242883007

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1541204

Associated Lab Samples: 10242883007

Matrix: Water

Analyzed

Benzene ug/L ND 1.0 10/02/13 16:23Ethylbenzene ug/L ND 1.0 10/02/13 16:23Methyl-tert-butyl ether ug/L ND 1.0 10/02/13 16:23Toluene ug/L ND 1.0 10/02/13 16:23Xylene (Total) ug/L ND 3.0 10/02/13 16:231,2-Dichloroethane-d4 (S) % 89 75-125 10/02/13 16:234-Bromofluorobenzene (S) % 93 75-125 10/02/13 16:23Toluene-d8 (S) % 93 75-125 10/02/13 16:23

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1541205LABORATORY CONTROL SAMPLE:LCSSpike

Benzene ug/L 22.720 114 75-125Ethylbenzene ug/L 21.220 106 75-125Methyl-tert-butyl ether ug/L 20.820 104 74-126Toluene ug/L 21.520 108 75-125Xylene (Total) ug/L 66.460 111 75-1251,2-Dichloroethane-d4 (S) % 88 75-1254-Bromofluorobenzene (S) % 94 75-125Toluene-d8 (S) % 94 75-125

Parameter UnitsMS

Result% RecLimits Qualifiers% RecConc.

1542042MATRIX SPIKE SAMPLE:MSSpike

Result10243229001

Benzene ug/L 25.620 128 70-135NDEthylbenzene ug/L 24.620 123 75-125NDMethyl-tert-butyl ether ug/L 21.820 109 70-132NDToluene ug/L 24.520 123 75-125NDXylene (Total) ug/L 76.1 MS60 127 75-125ND1,2-Dichloroethane-d4 (S) % 89 75-1254-Bromofluorobenzene (S) % 91 75-125Toluene-d8 (S) % 94 75-125

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102432290021542043SAMPLE DUPLICATE:

Benzene ug/L ND 30NDEthylbenzene ug/L ND 30ND

REPORT OF LABORATORY ANALYSISThis report shall not be reproduced, except in full,

without the written consent of Pace Analytical Services, Inc..Date: 10/10/2013 11:22 AM

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

Parameter UnitsDup

ResultMaxRPD QualifiersRPDResult

102432290021542043SAMPLE DUPLICATE:

Methyl-tert-butyl ether ug/L ND 30NDToluene ug/L ND 30NDXylene (Total) ug/L ND 30ND1,2-Dichloroethane-d4 (S) % 88 1884-Bromofluorobenzene (S) % 93 .0393Toluene-d8 (S) % 93 .0693

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#=QC#

QUALITY CONTROL DATA

Pace Project No.:Project:

10242883ARCO 651

QC Batch:QC Batch Method:

Analysis Method:Analysis Description:

OEXT/23111EPA 8011

EPA 8011GCS 8011 EDB DBCP

Associated Lab Samples: 10242883002, 10242883005

Parameter UnitsBlankResult

ReportingLimit Qualifiers

METHOD BLANK: 1533280

Associated Lab Samples: 10242883002, 10242883005

Matrix: Water

Analyzed

1,2-Dibromoethane (EDB) ug/L ND 0.010 09/26/13 02:374-Bromofluorobenzene (S) % 96 70-130 09/26/13 02:37

Parameter UnitsLCS

Result% RecLimits Qualifiers% RecConc.

1533281LABORATORY CONTROL SAMPLE:LCSSpike

1,2-Dibromoethane (EDB) ug/L 0.10.11 97 60-1404-Bromofluorobenzene (S) % 120 70-130

Parameter UnitsMS

Result% RecLimits Qual% RecConc.

1533282MATRIX SPIKE & MATRIX SPIKE DUPLICATE:

MSSpikeResult

10242717001

1533283

MSDResult

MSD% Rec RPD RPD

MaxMSDMSSpikeConc.

1,2-Dibromoethane (EDB) ug/L .1 67 60-14060 11 20.1ND 0.068 0.0614-Bromofluorobenzene (S) % 94 70-13094

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#=QL#

QUALIFIERS

Pace Project No.:Project:

10242883ARCO 651

DEFINITIONS

DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution ofthe sample aliquot, or moisture content.ND - Not Detected at or above adjusted reporting limit.J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.MDL - Adjusted Method Detection Limit.PRL - Pace Reporting Limit.RL - Reporting Limit.S - Surrogate1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.LCS(D) - Laboratory Control Sample (Duplicate)MS(D) - Matrix Spike (Duplicate)DUP - Sample DuplicateRPD - Relative Percent DifferenceNC - Not Calculable.SG - Silica Gel - Clean-UpU - Indicates the compound was analyzed for, but not detected.N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration.Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.TNI - The NELAC Institute.

ANALYTE QUALIFIERS

Analysis conducted outside the recognized method holding time.H1Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1Analyte recovery in the matrix spike was outside QC limits for one or more of the constituent analytes used in thecalculated result.

MS

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#=CR#

QUALITY CONTROL DATA CROSS REFERENCE TABLE

Pace Project No.:Project:

10242883ARCO 651

Lab ID Sample ID QC Batch Method QC Batch Analytical MethodAnalyticalBatch

10242883002 OEXT/23111 GCSV/12112MW-3-091913 EPA 8011 EPA 801110242883005 OEXT/23111 GCSV/12112MW-6-091913 EPA 8011 EPA 8011

10242883001 GCV/11318MW-2-091913 NWTPH-Gx/8021

10242883002 GCV/11346MW-3-091913 NWTPH-Gx/8021

10242883003 GCV/11318MW-4-091913 NWTPH-Gx/802110242883004 GCV/11318MW-5-091913 NWTPH-Gx/802110242883005 GCV/11318MW-6-091913 NWTPH-Gx/802110242883006 GCV/11318TB-0651-091913 NWTPH-Gx/802110242883007 GCV/11318DUP-091913 NWTPH-Gx/8021

10242883001 MPRP/42110 ICP/17767MW-2-091913 EPA 3010 EPA 601010242883002 MPRP/42110 ICP/17767MW-3-091913 EPA 3010 EPA 601010242883003 MPRP/42110 ICP/17767MW-4-091913 EPA 3010 EPA 601010242883004 MPRP/42110 ICP/17767MW-5-091913 EPA 3010 EPA 601010242883005 MPRP/42110 ICP/17767MW-6-091913 EPA 3010 EPA 601010242883007 MPRP/42110 ICP/17767DUP-091913 EPA 3010 EPA 6010

10242883001 MPRP/42169 ICP/17779MW-2-091913 EPA 3010 EPA 601010242883002 MPRP/42169 ICP/17779MW-3-091913 EPA 3010 EPA 601010242883003 MPRP/42169 ICP/17779MW-4-091913 EPA 3010 EPA 601010242883004 MPRP/42169 ICP/17779MW-5-091913 EPA 3010 EPA 601010242883005 MPRP/42169 ICP/17779MW-6-091913 EPA 3010 EPA 601010242883007 MPRP/42169 ICP/17779DUP-091913 EPA 3010 EPA 6010

10242883001 MSV/25141MW-2-091913 EPA 8260

10242883002 MSV/25138MW-3-091913 EPA 826010242883003 MSV/25138MW-4-091913 EPA 826010242883004 MSV/25138MW-5-091913 EPA 826010242883005 MSV/25138MW-6-091913 EPA 826010242883006 MSV/25138TB-0651-091913 EPA 8260

10242883007 MSV/25143DUP-091913 EPA 8260

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Appendix C

Groundwater Monitoring

Field Data Sheets