Phase_II_ESA_-_Release_Investigation.pdf

Phase II Environmental Site Assessment /

Release Investigation

Milepost 77 Glenn Highway

Chickaloon, Alaska

March 2011

Prepared for:

Big State Logistics, Inc.

Prepared by:

Alaska Resources and

Environmental Services, LLC.

284 Topside Drive

Fairbanks, AK 99712

Prepared by:

Lyle Gresehover

Project Manager/Geologist

Release Investigation / Phase II ESA

Milepost 77 Glenn Highway Big State Logistics

Environmental Services i March 2011

EXECUTIVE SUMMARY

This report summarizes the findings of the Phase II Environmental Site Assessment / Release

Investigation conducted by Alaska Resources and Environmental Services, LLC (ARES) for the subject property near Chickaloon, Alaska (Figures 1-2). The property is owned by the

Chickaloon Native Village Corporation. The spill occurred at milepost 77 of the Glenn

Highway; a highway maintained by the Alaska Department of Transportation (ADOT).

The subject property (spill release site) is situated adjacent to the Glenn highway at approximately mile 77 of the Glenn highway (Figure 1,2). The site is located in the U.S.

Geological Survey (USGS) Anchorage D-4 quadrangle. The GPS coordinates for the spill site are 61° 47.051' N and 148° 27.248' W. The site elevation is 845 feet above mean sea level based on topographical map.

Fieldwork was conducted October 13-14, 2010. A total of one hundred and one (101) field screen samples and eight (8) soil analytical samples were collected as part of the Phase II ESA associated with the release of 2,460-gallons of diesel fuel. Soil samples consisted of grab samples and all samples were analyzed for DRO by method AK 102 and BTEX by method EPA

8260B. One sample was analyzed for PAH by method EPA 8270M.

Approximately 250 cy of petroleum contaminated soils were excavated and hauled to Alaska

Soil Recycling for treatment by thermal remediation. Groundwater was not encountered during excavation activities.

Analytical sample results indicate that soils remaining in place in the roadbed and fractured bedrock floor of excavation remain above ADEC cleanup levels for DRO and BTEX compounds. Analytical sample MP77GH-02, collected from the fractured bedrock floor of the excavation was found to contain the highest concentration of contamination. The following compounds were detected in analytical sample MR77GH-02: DRO at 13,500 mg/kg; benzene at

0.0687 mg/kg; toluene 11.7 at mg/kg; ethyl-benzene at 28.8 mg/kg; and total xylenes at 133 mg/kg. Site soils down-gradient from the spill site were removed to the extent possible, however excavation was limited by the proximity of bedrock.

ARES recommends the following:

Permanent groundwater monitoring wells should be installed as soon as possible to determine potential impacts to groundwater and adjacent surface waters per ADEC regulations for completion of Site Characterization. A Corrective action Work Plan has been submitted to ADEC for installation of groundwater monitoring wells and is awaiting approval; and

Any future disturbance of soils in the identified spill release area should be field screened for POL contamination in accordance with ADEC regulations. Handling or disposal of soils will need ADEC approval.

ii March 2011

TABLE OF CONTENTS

EXECUTIVE SUMMARY ............................................................................................................. i

1.0 INTRODUCTION

1.1 Objectives and Scope of Work

1.2 Project Organization / Personnel

1.3 Regulatory Framework

2.0 SITE DESCRIPTION

2.1 Location

2.2 History

2.3 Site Topography, Geology, and Hydrology

3.0 SAMPLING

3.1 Weather Conditions

3.2 Field Screen Sampling

3.3 Field Observation

3.4 Analytical Sampling

3.5 ADEC Target Cleanup Levels

3.6 Soil Analytical Results

4.0 QUALITY ASSURANCE AND QUALITY CONTROL

4.1 Blind Duplicate Sample

4.2 Trip Blank Sample

4.3 Data Quality Review

6.0 CONCLUSIONS AND RECOMMENDATIONS

7.0 LIMITATIONS OF INVESTIGATION

TABLES

Table 1: Field Screen Measurements Summary Table 2: Analytical Sample Locations Table 3: Summary of Petroleum Analytical Results in Soil Table 4: Relative Percent Difference Calculations

APPENDICES

Appendix A: Figures

Appendix B: Photographs

Appendix C: Analytical Results and ADEC Lab Quality Checklist iii March 2011

ACRONYMS AND ABBREVIATIONS

AAC ...........................Alaska Administrative Code

ADEC .........................Alaska Department of Environmental Conservation

ARES .........................Alaska Resources and Environmental Services, LLC bgs ..............................Below Ground Surface

BTEX .........................Benzene, Toluene, Ethylbenzene and Xylenes

COC ...........................Chain of Custody

Cy ...............................Cubic Yards

°C ...............................Degrees Celsius

°F ................................Degrees Fahrenheit ft² ................................Square Feet

DRO ...........................Diesel Range Organics

HS ..............................Headspace

LCS ............................Laboratory Control Sample

LCSD .........................Laboratory Control Sample Duplicate mg/kg .........................Milligrams per kilogram

MS/MSD ....................Matrix Spike/Matrix Spike Duplicate

ND ..............................Non-Detect

NRCS .........................Natural Resources Conservation Service

PAH............................Polycyclic Aromatic Hydrocarbon

PID .............................Photoionization Detector ppm ...........................Parts Per Million

POL ............................Petroleum, Oil & Lubricants

PQL ............................Practical Quantitation Limit

QA ..............................Quality Assurance

QC ..............................Quality Control

RPD ............................Relative Percent Difference

TB ..............................Trip Blank

USDA .........................United States Department of Agriculture

1 March 2011

RELEASE INVESTIGATION/ PHASE II ESA

1.0 INTRODUCTION

This report summarizes the findings of the Release Investigation / Phase II Environmental Site

Assessment (ESA) conducted by Alaska Resources and Environmental Services, LLC (ARES) for the subject property near Chickaloon, Alaska (Figures 1-2). The property is owned by the

The Phase II ESA / Release Investigation was conducted in October 2010 at the request of Mr.

Brian Evans, Operations Manager for Big State Logistics, Inc. This report contains a summary of on-site work and includes field observations and analytical data from sampling activities.

1.1 Objectives and Scope of Work

The purpose of this project was to perform a site characterization and to investigate the subsurface conditions associated with the release of 2,460-gallons of diesel fuel from a BSL fuel tanker that collided with a road-side barrier on October 7, 2010. Field screen samples were collected in the vicinity of the spill and were used to guide excavation activities. Subsurface soil samples were collected from the excavation sidewalls and base of the excavation pit to verify final site conditions.

1.2 Project Organization / Personnel

Big State Logistics Inc. provided equipment and personnel to excavate and transport petroleum-contaminated soils found at the site. The mailing address for Big State Logistics Inc. is 3621

Royal Road, Fairbanks, AK 99701. The telephone number for Big State Logistics Inc. is (907)

452-8600.

Test America of 2000 W International Airport Road Suite A10, Anchorage, Alaska 99502-1119, performed laboratory analysis of soil. Test America is approved by ADEC to provide testing of soil for hazardous substances and petroleum related contaminants. The telephone number for

Test America is (907) 563-9200.

Alaska Soil Recycling of 1040 O’Malley Road, Anchorage, Alaska 99515, provided treatment of petroleum contaminated soils by thermal remediation. The telephone number for Alaska Soil

Recycling is (907) 349-3333.

The Phase II ESA / Release Investigation was completed in October 2010, by Mr. Jason

Gresehover, Environmental Scientist for ARES. Mr. Gresehover is listed as a Qualified Person by the Alaska Department of Environmental Conservation (ADEC) under 18 AAC 78. Mr. Lyle

Gresehover of ARES is the point of contact for this project and may be contacted at Alaska

Resources & Environmental Services, LLC, P.O. Box 83050 Fairbanks, Alaska 99708. The telephone number for Mr. Gresehover is (907) 374-3226.

2 March 2011

In summary Big State Logistics, Inc., performed the following activities:

Conducted excavation and transport of petroleum contaminated materials; and

Performed site restoration work.

In summary Test America (Anchorage), performed the following activities:

Conducted laboratory analysis of soil samples. Samples were analyzed for DRO by method AK 102, BTEX by method EPA 8260B and PAH by method EPA 8270M.

Laboratory quality control and quality assurance was also completed.

In summary Alaska Soil Recycling performed the following activities:

Provided treatment of petroleum contaminated soils by thermal remediation.

In summary ARES performed the following activities:

Performed the Phase II ESA / Release Investigation at the subject property. ARES personnel was on-site throughout the project;

Collected soil field screen samples to guide excavation activities;

Obtained field measurements to include site plan, PID field screening measurements, and sample locations. Documented site activities;

Collection of soil analytical samples; and

Preparation of Final Report.

These activities are intended to satisfy requirements listed in 18 AAC 75 for site characterization requirements.

1.3 Regulatory Framework

A regulatory framework for the site assessment activity has been developed with the consideration of the following regulations and guidance:

18 AAC 75 Oil and Other Hazardous Substances Pollution Control, as amended through

October 9, 2008;

18 AAC 78 Underground Storage Tanks as amended through October 27, 2006;

ADEC UST Procedures Manual as amended through November 7, 2002

Site characterization requirements are provided by ADEC in 18 AAC 75, Articles 3 and 9

Discharge Reporting, Cleanup, and Disposal of Oil and Other Hazardous Substances and

General Provisions as amended through October, 2008; and

ADEC soil cleanup levels in accordance with 18 AAC 75.341 Table B1 and B2, Method

Two, ‘under 40” zone’, migration to groundwater.

3 March 2011

2.0 SITE DESCRIPTION

2.1 Location

The subject property (spill release site) is situated adjacent to the Glenn highway at approximately mile 77 of the Glenn highway (Figure 1,2). The site is located in the U.S.

Geological Survey (USGS) Anchorage D-4 quadrangle. The GPS coordinates for the spill site

2.2 History

According to the Big State Logistics Inc. (BSL) manager Mr. Brian Evans, a BSL fuel truck containing 8,800 gallons of diesel fuel ran off the road and collided with a road-side barrier at

1615 on October 07, 2010 at milepost 77.8 of the Glenn highway. At 1645 ADEC and the

Alaska State Troopers separately contacted BSL and informed them of the accident. At 1650

BSL dispatched first response environmental cleanup crews from both Valdez and Fairbanks, Alaska. Emerald Services Inc. was also dispatched from Anchorage, AK and arrived on-site at

1845. Emerald Services was able to contain and recover 6,340-gallons of diesel fuel from the tanker and the surface of the ground using a vacuum truck. A total of 2,460-gallons of diesel fuel remained on-site. Containment boom and sorbent pads were used to contain the spill, however it appears that much of the 2,460 gallons of remaining diesel fuel migrated downwards through large cracks in the surface bedrock. Big State Logistics covered the spill area with poly-sheeting awaiting approval to begin excavation activities.

2.3 Site Topography, Geology, and Hydrology

Topography

The United States Geological Survey (USGS) Anchorage Quadrangle (D-4) provides topographic map coverage of the site. The bedrock in the spill area is of the Tertiary age

Chickaloon Formation, continental in origin and consisting of interbedded claystone, siltstone, feldspathic sandstone, and conglomerate with bituminous coal beds. The spill area occurred adjacent to the mouth of the Chickaloon River (west side) which flows into the Matanuska River.

The spill area is situated approximately 200 feet north west of the Matanuska River and 260 feet south west of the mouth of the Chickaloon River.

Regional Soils/Geology

A complex of floodplains and stream terraces are found along most of the length of the

Matanuska and Susitna Rivers. The broad, braided floodplains, characteristic of high gradient glacial rivers, are occasionally one mile or more in width. Floodplain features include point bars, cutoff meanders, and back swamps. Stream terraces are generally discontinuous and often narrow in width. Short, steep escarpments between floodplains and different terrace levels are found in many places. Soil parent materials on floodplains and stream terraces include stratifed sandy and silty alluvium of varying thickness over gravelly and sany adducium. Seasonal depth to water table in floodplain soils fluctuates in response to periodic changes in river discharge and water level.

4 March 2011

A variety of glacial landforms and associated features, formed during Twaternary Glaciation, are found above the floodplains and stream terraces at elevations ranging from about 150 to 500 feet.

Glacial landforms include nearly level and undulating outwash and till plains, pitted outwash plains, steep hills, and, in a few places, wind deposited sand sheets and dunes. Soil parent materials include loose sandy and gravelly glacial outwash, friable to firm loamy and gravelly glacial drift, and firm gravelly glacial till. On hills and lower mountain slopes, bedrock is often present within 60 inches of the surface. (USDA NRCS Soil Survey of Matanuska-Susitna Valley

Area, Alaska 1998)

Site Soils

The Glenn highway was constructed in the spill area on a blasted bedrock foundation. Site soils consist of 2 - 8 feet of silty gravels atop of the fractured bedrock. The hillside consists of the remnants of the blasted bedrock mixed with silty gravels and soils. Bedrock at the spill site is generally 2 - 8 feet bgs, fractured and permeable.

Regional Hydrology

The Chickaloon and Matanuska rivers are the dominant influence on ground-water flow in the subject area. Two discharge peaks characterize the Matanuska river: spring snowmelt runoff and late summer precipitation. The depth to groundwater varies in response to these controlling factors. Based on interpretation of USGS data, regional groundwater flow direction is generally to the southwest. Depth to groundwater in the area is unknown at this time. Surface waters nearby include the Chickaloon and Matanuska rivers (Figures 1, 2).

Site Hydrology

Groundwater was not encountered during excavation activities for this project. Depth to groundwater is unknown.

3.0 SAMPLING

3.1 Weather Conditions

An initial site assessment by was conducted by ARES personnel on October 8, 2010 to verify site conditions and to estimate the extent of contamination at the site. Limited field screen samples were collected to determine depth and range of contamination.

Fieldwork related to contaminated soil excavation / cleanup efforts was conducted on October

13, and 14 2010. Weather conditions ranged from 28 ºF - 50º F, with clear skies and winds 0-5 mph.

5 March 2011

3.2 Field Screen Sampling

One hundred and one (101) field screen samples were collected during the Phase II ESA /

Release Investigation. ARES used a MiniRAE 2000 PID (Serial No. PGM7600-110-002244).

The PID was used for headspace screening of samples according to ADEC field screening procedures. The PID was calibrated prior to each period of use to 0 parts per million (ppm) free air and 100 ppm isobutylene calibration gas, using a response factor of 10.

Field screen samples were collected in conjunction with excavation activities and used as a guide to direct excavation activities. All excavated soils that had PID readings ≥ 20.0 ppm were considered contaminated and were temporarily stockpiled on-site before being transferred to a permanent land-farm stockpile on the subject property. Field screen sample showing readings <

20 ppm were considered clean and left in place.

Headspace screening was conducted as follows: Soil samples were transferred directly into a ziplock-type bag. Each bag was filled one-third to one half full, then warmed for 10 to 20 minutes. Temperatures of the soil in the bag were warmed to at least 16ºC (60ºF). Samples were agitated at the beginning and end of the warming period inside the bag to enhance volatilization.

The bags were partially opened after the warming and the VOCs in the headspace above the soil were sampled by inserting the PID probe. The highest meter reading obtained was recorded.

Field screen results are displayed in Table 1. Field screen sample locations are shown in Figure

4.

Table 1: Field Screen Measurements Summary

(Results displayed in ppm)

Sample ID Depth (ft) PID Value

(ppm) Sample ID Depth (ft)

PID Value

(ppm)

1 0.5 0.9 14 3 5.9

2 1 92.4 15 3 25.4

3 1 27.2 16 8 240

4 2 11.7 17 8 31.0

5 2 5.1 18 2 1460

6 2.5 432 19 4 35.6

7 2.5 5.5 20 4 16.6

8 4 167 21 4 809

9 4 55.2 22 3 9.2

10 1 1.8 23 3 7.2

11 3 813 24 3 1389

12 3 4.5 25 3 684

13 3 86.5 26 6 98.1

6 March 2011

Table1: Field Screen Measurements Summary Continued

(Results displayed in ppm)

Sample ID Depth (ft) PID Value

(ppm) Sample ID Depth (ft)

PID Value

(ppm)

27 6 747 62 2 18.5

28 5 13.5 63 2 4.8

29 4 6.5 64 2 668

30 3 7.4 65 2 801

31 3 3.2 66 2 299

32 3 4.8 67 2 1048

33 2 143 68 2 24.5

34 2 3.0 69 2 14.1

35 2 58.6 70 2 14.2

36 3 868 71 2 1598

37 2 765 72 2 20.1

38 2 976 73 2 14.6

39 4 219 74 2 25.4

40 3 128 75 2 15.2

41 4 22.6 76 2 18.8

42 2 1204 77 2 12.0

43 6 66.8 78 1.5 4.5

44 4 75.0 79 1.5 7.0

TP-1 2 1.8 80 1.5 8.3

TP-2 2 3.2 81 2 679

TP-3 2 1.0 82 2 11.2

45 3 5.4 83 2 6.5

46 3 10.2 84 1 6.3

47 3 8.6 85 1 6.7

48 3 147 86 1 19.7

49 3 17.9 87 1.5 12.2

50 3 7.1 88 2 1507

51 3 12.4 89 3 1940

52 2 2.7 90 3 2149

53 2 3.0 91 2 1.2

54 2 1384 92 1.5 1.8

55 2 5.3 93 1.5 2.4

56 2 8.9 94 2 10.9

57 3 1257 95 2 6.8

58 2 6.5 96 2 4.5

59 3 1880 97 2 75.5

60 2 1617 98 2 2.2

61 2 1828

7 March 2011

3.3 Field Observation

Excavation of the contaminated soils commenced on October 13, 2010 and continued on October

14, 2010. Soils consisted of course gravels with a strong diesel odor. Field screen samples were collected at the frequency of at least 1 sample per every 10 cy of excavated soil. Contaminated soils were directly loaded into side-dump trailers and hauled to Alaska Soil Recycling for treatment by thermal remediation.

Excavation took place in two adjacent areas (Figure 4). Excavation area One consisted of contaminated soils on the road-side shoulder. Excavation in this area was limited on the roadside to a 1:1 slope next to the road and in depth by the fractured bedrock floor of the excavation. The maximum depth of excavation in Area One was six feet bgs. Excavation area Two consisted of contaminated soils on the hillside adjacent to the spill area. The excavation in this area was limited in depth by the fractured bedrock hillside. The maximum depth of excavation in Area

Two was eight feet bgs.

The highest soil field screen reading was Sample ID 90 at 2149 ppm. Field screen sample 90 was gathered from the fractured bedrock on the floor of the excavation pit. Analytical sample

MP77GH-06 was collected from this location as well.

A total of 21.5 side-dump truck loads of contaminated soil (approximately 250 cy) were excavated and hauled to Alaska Soil Recycling treatment by thermal remediation. Analytical samples were collected from the base of the excavation and the sidewalls to verify final site conditions following excavation.

3.4 Analytical Sampling

A total of eight (8) soil samples (includes one blind field duplicate sample) were collected on

October 13-14, 2010 from the excavated area to verify final site conditions. Soil samples consisted of grab samples and all samples were analyzed for DRO by method AK 102, and

BTEX by method EPA 8260B. The soil sample with the highest field screen reading was also analyzed for PAH by method EPA 8270M. Soil sample locations collected for laboratory analysis are shown in Figure 4. Analytical sample descriptions are summarized in Table 2.

Analytical results are summarized in Table 3.

Analytical samples were placed into certified clean glass jars provided by Test America.

Samples were handled using disposable Nitrile gloves. To comply with the UST Procedures

Manual for VOC samples, 25 milliliters of a methanol/surrogate was carefully added to the undisturbed soil in the partially filled pre-weighted sample jar so that the sample was completely submerged. Soil samples were collected in order of decreasing volatility. Sample jars were properly labeled and placed into a pre-chilled cooler. The chilled temperature within the cooler was maintained at approximately 4ºC using frozen gel packages during transportation to the laboratory. A signed Chain-of-Custody (COC) form accompanied the samples to Test America.

The COC is attached to Test America’s Lab Report.

8 March 2011

Table 2: Analytical Sample Locations

Sample ID Date Collected Depth

(ft) Location Reference Figure

MP77GH-01 10/13/2010 3 Excavation area 1 , NW sidewall

Figure 4

MP77GH-02 10/13/2010 4 Excavation area 1 floor

MP77GH-03 10/13/2010 6 Excavation area 1 floor

MP77GH-04 10/13/2010 4 Excavation area 2 , SE sidewall

MP77GH-05 10/14/2010 1 Excavation area 1 , SE sidewall

MP77GH-06 10/14/2010 3 Excavation area 1 floor

MP77GH-07 10/14/2010 3 Excavation area 1 , NW sidewall

MP77GH-DUP

Blind duplicate sample to

MP77GH-06

10/14/2010 3 Excavation area 1 floor

All soil samples were collected from areas showing highest final field screen readings and in accordance with UST Procedures Manual. Soil sample locations collected for laboratory analysis are shown in Figure 4.

3.5 ADEC Target Cleanup Levels

Target soil cleanup levels for the petroleum-contaminated spill site were determined using 18

AAC 75.341 (Method Two) Soil Cleanup Levels (Table B1, B2), over 40 inch zone, migration to groundwater.

3.6 Soil Analytical Results

The analytical results for samples collected from the excavation pit are summarized in Table 3.

Analytical sample locations are shown in Figure 4. Complete analytical results are included in

Appendix C.

9 March 2011

Table 3: Summary of Petroleum Analytical Results in Soil

Sample ID Date

Collected

EPA Method 8021B

(mg/kg)

Alaska

Method

AK 102

(mg/kg)

Benzene Toluene Ethyl-benzene Total xylenes DRO

MP77GH-01 10/13/2010 0.0243 6.17 17.4 78.4 7320

MP77GH-02 10/13/2010 0.0687 11.7 28.8 133 13500

MP77GH-03 10/13/2010 0.0114 1.64 4.32 23.7 6170

MP77GH-04 10/13/2010 ND 0.471 1.28 6.44 45.2

MP77GH-05 10/14/2010 ND 0.316 0.267 1.41 39.0

MP77GH-06 10/14/2010 0.0247 5.29 15.1 71.2 6460

MP77GH-07 10/14/2010 0.0300 4.76 13.6 64.5 7770

MP77GH-DUP

Blind duplicate sample to

MP77GH-06

10/14/2010 0.0266 5.70 19.3 89.3 6760

ADEC Cleanup Level Soil (mg/kg) 0.025 6.5 6.9 63 230

Title 18 of the Alaska Administrative Code, Chapter 75. Section 341. Table B1, B2 Method 2. Revised as of

October 9, 2008.

ND = Not detected at method reporting limit.

Results above ADEC Regulatory Limit in Bold.

Analytical results from the October 13-14, 2010 sampling event found soils remaining in place above ADEC cleanup levels for DRO and BTEX analytes. Based on field screen sampling and analytical results, some remaining soils within the spill area/excavation pit are above ADEC cleanup levels.

Additionally all samples analyzed for PAH analytes were found to be below the method reporting limit with the following exceptions:

2-Methylnaphthalene was detected in sample MP77GH-06 at 2.21 mg/kg.

2-Methylnaphthalene was detected in sample MP77GH-DUP at 2.03 mg/kg.

Both detections of 2-Methylnaphthalene fall below ADEC stipulated cleanup levels of 6.1 mg/kg.

Due to the limits of the existing road and fractured bedrock below the spill site, some contaminated material remains in place. See Figure 4 for analytical sample locations.

10 March 2011

4.0 QUALITY ASSURANCE AND QUALITY CONTROL

4.1 Blind Duplicate Sample

Field quality control (QC) procedures for this project included the collection and analysis of one blind field duplicate sample. The blind field duplicate sample was analyzed for DRO by method

AK 102 , BTEX by method EPA 8260b and PAH by method EPA 8270M. The QC samples were analyzed to assess the quality of sample collection and handling, as well as the accuracy and precision of the laboratory’s analytical procedures.

RPD calculations provide a comparison of two theoretically identical samples that are submitted blind to the laboratory in order to provide an un-biased measure of precision. Due to the nature of the RPD calculation, sample data for both samples must be reported in order for the RPD calculation to provide meaningful data. RPD calculations were computed in Table 4 below for all compounds that had laboratory reported detections for both samples.

The calculated RPDs are as follows:

Table 4: Relative Percent Difference Calculations

Sample ID Compound Equation RPD

MP77GH-DUP

and

MP77GH-06

DRO ( 6760 – 6460 )/[( 6760 + 6460 )/2] x 100 = 4.50 %

Benzene ( 0.0247 – 0.0266 )/[( 0.0247 + 0.0266 )/2] x 100 = 7.40 %

Toluene ( 5.70 – 5.29 )/[( 5.70 + 5.29 )/2] x 100 = 7.50 %

Ethyl-benzene ( 19.3 – 15.1 )/[( 19.3 + 15.1 )/2] x 100 = 24.4 %

Total Xylenes ( 89.3 – 71.2 )/[( 89.3 + 71.2 )/2] x 100 = 22.6 % RPD calculations over ADEC limits of 50% in soil are in Bold.

The ADEC recommended limit for RPD is 50% in soil. The calculated RPD fell within the recommended range for all of the RPD calculations.

4.2 Trip Blank Sample

Field quality control (QC) procedures for this project included the analysis of one soil trip blank sample which accompanied the samples in the field. The trip blank sample was analyzed to assess the quality of sample collection and handling.

In ideal conditions the analysis of a trip blank sample should not indicate the presence of any of the tested analytes in a quantity above the method reporting limit (MRL). A result above the

MRL can indicate that cross-contamination occurred between samples during sample transport or analysis, or indicate laboratory contamination.

Trip blank samples for this project were analyzed for BTEX compounds by method EPA 8260B.

No compounds were detected above the MRL in the soil trip blank sample. There is no indication that cross-contamination between samples occurred.

11 March 2011

4.3 Data Quality Review

The ADEC Environmental Laboratory Data Quality Assurance Requirements (ADEC 2006) and

United States Environmental Protection Agency (EPA) National Functional Guidelines for

Organic Review (EPA 1999) were followed in this site investigation. The data was reviewed to determine the data quality and to evaluate potential impact on the usability of the data. The review was performed using Level II reports that were provided by Test America, Inc. laboratory of Anchorage, AK. The analytical laboratory repots, chain-of-custody records, and ADEC lab quality checklist is included in Appendix C.

The following quality control parameters were reviewed:

Holding times

Sample handling and receiving

Surrogate percent recovery

Field duplicate sample comparability

Matrix spike/matrix spike duplicate (MS/MSD) percent recoveries and relative percent difference (RPD)

Laboratory control sample (LCS)/Laboratory control sample duplicate (LCSD) percent recoveries and RPD

Method blanks

Trip blanks

Method Sensitivity – reporting limits and practical quantitation limits (PQL)

The quality control parameters were found to be within accepted limits with the following exceptions:

Samples analyzed for BTEX compounds were either analyzed or re-analyzed out of hold time due to laboratory unscheduled instrument maintenance.

Surrogate recovery outside acceptance limits.

MS/ MSD were outside acceptance limits.

MS/ MSD RPD exceeded the method control limit due to sample matrix effects.

Data quality is impacted due to QC errors for samples collected October 13-14 2010. Data is expected to be biased low due to holding time errors for BTEX analysis. The data for this sampling event is still usable however data should be viewed qualitatively rather than quantitatively.

The ADEC lab quality checklist is included in Appendix C.

6.0 CONCLUSIONS AND RECOMMENDATIONS

This report summarizes the findings of the Phase II Environmental Site Assessment / Release

Investigation conducted by Alaska Resources and Environmental Services, LLC (ARES) for the subject property near Chickaloon, Alaska (Figures 1-2). The property is owned by the

12 March 2011

The subject property (spill release site) is situated adjacent to the Glenn highway at approximately mile 77 of the Glenn highway (Figure 1,2). The site is located in the U.S.

Geological Survey (USGS) Anchorage D-4 quadrangle. The GPS coordinates for the spill site

Fieldwork was conducted October 13-14, 2010. A total of one hundred and one (101) field screen samples and eight (8) soil analytical samples were collected as part of the Phase II ESA associated with the release of 2,460-gallons of diesel fuel. Soil samples consisted of grab samples and all samples were analyzed for DRO by method AK 102 and BTEX by method EPA

8260B. One sample was analyzed for PAH by method EPA 8270M.

Approximately 250 cy of petroleum contaminated soils were excavated and hauled to Alaska

Soil Recycling for treatment by thermal remediation. Groundwater was not encountered during excavation activities.

Analytical sample results indicate that soils remaining in place in the roadbed and fractured bedrock floor of excavation remain above ADEC cleanup levels for DRO and BTEX compounds. Analytical sample MP77GH-02, collected from the fractured bedrock floor of the excavation was found to contain the highest concentration of contamination. The following compounds were detected in analytical sample MR77GH-02: DRO at 13,500 mg/kg; benzene at

0.0687 mg/kg; toluene 11.7 at mg/kg; ethyl-benzene at 28.8 mg/kg; and total xylenes at 133 mg/kg. Site soils down-gradient from the spill site were removed to the extent possible, however excavation was limited by the proximity of bedrock.

ARES recommends the following:

Permanent groundwater monitoring wells should be installed as soon as possible to determine potential impacts to groundwater and adjacent surface waters per ADEC regulations for completion of Site Characterization. A Corrective action Work Plan has been submitted to ADEC for installation of groundwater monitoring wells and is awaiting approval; and

Any future disturbance of soils in the identified spill release area should be field screened for POL contamination in accordance with ADEC regulations. Handling or disposal of soils will need ADEC approval.

7.0 LIMITATIONS OF INVESTIGATION

This report presents the analytical results from a limited number of soil samples and should not be construed as a comprehensive study of subsurface conditions at the site. The samples were intended to evaluate the presence or absence of contaminants at the locations selected.

Detectable levels of petroleum hydrocarbons or other substances may be present at different

13 March 2011 locations. It was also not the intent of our sampling and testing to detect the presence of soil affected by contaminants other than those for which laboratory analysis were preformed. No conclusions can be drawn on the presence or absence of other contaminants. This is not a geotechnical study.

The data presented in this report should be considered representative of the time of our site observations and sample collection. Changes in site conditions can occur with time because of natural forces or human activity. ARES reserves the right to modify or alter conclusions and recommendations should additional data become available.

This report was prepared for the exclusive use of Big State Logistics, Inc. and its representatives.

If it is made available to others, it should be for information on factual data only and not as a warranty of subsurface conditions.

Appendix A:

Figures

Spill Area

Environmental Services, LLC

284 Topside Fairbanks, AK 99701

PH. (907) 374-3226

FAX (907) 374-3219

FIGURE

1948 Topographical Map Minor Revision in 1994

Anchorage, AK Quad D-4

Scale in Miles:

Date: 10/12/10

Project:

Corrective Action Workplan Milepost 77 Glenn Highway, Anchorage AK

Drawn: JDG

Anchorage

Fairbanks

Scale in Miles

0 500250125

Environmental Services, LLC

284 Topside Fairbanks, AK 99701

PH. (907) 374-3226

FAX (907) 374-3219

FIGURE

Aerial Photograph August 2005

Scale in Feet:

Date: 10/12/10

Project:

Corrective Action Workplan Milepost 77 Glenn Highway, Anchorage AK

Drawn: JDG 250 500

284 Topside Fairbanks, AK 99701

PH. (907) 374-3226

FAX (907) 374-3219

FIGURE

Site Map

Scale in Feet:

Date: 1/20/11

Project: Corrective Action Workplan / Groundwater Investigation Milepost 77 Glenn Highway, Anchorage AK

Drawn: JDG 50 100

Sandbar / Island

Glenn Highway

Chickaloon Branch Road

C hic ka lo o n Rive r

M a ta n u sk a R iv e r

Approximate Spill Area

Road Shoulder

Key

Proposed Monitoring Well Location

Planned Route for Drill Rig

Groundwater Flow DirectionSurface Flow

Direction

284 Topside Fairbanks, AK 99701

PH. (907) 374-3226

FAX (907) 374-3219

FIGURE

Sample Location Map

Scale in Feet:

Date: 2/23/11

Project:

Phase II ESA / Release Investigation Milepost 77 Glenn Highway, Anchorage AK

Drawn: JDG 5 10

Excavation Area 1

Road Shoulder

Surface Flow Direction

101TP-1

Excavation Area 2

8 9

57 58

Test Pit #1

Test Pit #2

Test Pit #3

101TP-2

101TP-3

G le nn H ig hw a y

Key

Analytical Soil Sample Location

Field Screen Soil Sample Location

MP77GH-01

MP77GH-02

MP77GH-03

MP77GH-04

MP77GH-05MP77GH-07

MP77GH-06 +

MP77GH-DUP

Appendix B:

Photographs

284 Topside Fairbanks, AK 99701

PH. (907) 374-3226

FAX (907) 374-3219

Photographs 1-6

Phase II ESA / Release Investigation Milepost 77 Glenn Highway, Chickaloon AK

Photograph 1:

Stained soil, visible on hillside prior to excavation.

10/13/2010 Photograph 2:

Excavation of hillside, bedrock clearly visible.

Photograph 3:

Roadside excavation section 1.

10/13/201010/13/2010 Photograph 4:

Roadside excavation section 2.

Photograph 5:

Roadside excavation section 3.

10/14/201010/14/2010 Photograph 6:

Roadside excavation section 4.

10/13/2010

Appendix C:

Analytical Results

ADEC Lab Quality Checklist

ANALYTICAL REPORT

TestAmerica Laboratories, Inc.

TestAmerica Anchorage 2000 West International Airport Road Suite A10 Anchorage, AK 99502-1119 Tel: (907) 563-9200

TestAmerica Job ID: ATJ0068 TestAmerica Sample Delivery Group: ATJ0068 Client Project/Site: [none] Client Project Description: MP 77 Glenn Hwy Spill

For:

Alaska Resources & Environmental Services P.O. Box 83050 Fairbanks, AK 99708

Attn: Lyle Gresehover

Authorized for release by:

11/2/2010 7:45 PM

Johanna L Dreher Client Services Manager johanna.dreher@testamericainc.com

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Page 1 of 36 11/02/2010 mailto:johanna.dreher@testamericainc.com https://secure.testamericainc.com/TotalAccess/login.aspx http://www.testamericainc.com/AskTheExpert/Expert_index.htm http://www.testamericainc.com

Table of Contents

Client: Alaska Resources & Environmental Services Project/Site: [none]

TestAmerica Job ID: ATJ0068

TestAmerica Anchorage

11/02/2010

Cover Page

Table of Contents

Definitions

Case Narrative

Detection Summary

Client Sample Results

Surrogate Summary

QC Sample Results

QC Association

Chronicle

Certification Summary

Method Summary

Sample Summary

Chain of Custody

Qualifier Definition/Glossary TestAmerica Job ID: ATJ0068Client: Alaska Resources & Environmental Services

SDG: ATJ0068Project/Site: [none]

Qualifiers

GCMS Volatiles

Qualifier Qualifier Description

Concentration exceeds the calibration range and therefore result is semi-quantitative.E

Sample analysis performed past method-specified holding time.H

Initial analysis within holding time. Reanalysis for the required dilution was past holding time.H2

The MS and/or MSD were above the acceptance limits. See Blank Spike (LCS).M7

Due to high levels of analyte in the sample, the MS/MSD calculation does not provide useful spike recovery information. See Blank Spike (LCS).MHA

Sample required dilution due to high concentrations of target analyte.RL7

Due to sample matrix effects, the surrogate recovery was outside the acceptance limits.ZX

Semivolatiles

Qualifier Qualifier Description

The RPD exceeded the method control limit due to sample matrix effects. The individual analyte QA/QC recoveries, however, were within acceptance limits.

R

Surrogate recovery was above acceptance limits.Z1

The sample required a dilution due to the nature of the sample matrix. Because of this dilution, the surrogate spike concentration in the sample was reduced to a level where the recovery calculation does not provide useful information.

Z3

Fuels

Qualifier Qualifier Description

The MS and/or MSD were below the acceptance limits. See Blank Spike (LCS).M8

Detected hydrocarbons in the diesel range do not have a distinct diesel pattern and may be due to heavily weathered diesel.Q11

Typical pattern for dieselQ2

The hydrocarbons present are a complex mixture of diesel range and heavy oil range organics.Q4

Sample required dilution due to high concentrations of target analyte.RL7

Surrogate recovery was below acceptance limits.Z6

Glossary

Glossary Glossary Description

Listed under the "D" column to designate that the result is reported on a dry weight basis.☼

TestAmerica Anchorage

Page 3 of 36 11/02/2010

Case Narrative

SDG: ATJ0068Project/Site: [none]

Notes

Receipt

All samples were received in good condition within temperature requirements at all laboratories.

BTEX by 8260

The following samples required dilutions and were analyzed outside of analytical holding time due to unscheduled instrument maintenance and repair: ATJ0068-01, ATJ0068-02, ATJ0068-03, ATJ0068-05, ATJ0053-06, and ATJ0053-06. All affected sample analytes and surrogates were flagged "H"

The following sample was analyzed outside of analytical holding time due to unscheduled instrument maintenance and repair: ATJ0068-05, ATJ0068-07, ATJ0068-08, and ATJ0068-09. All affected sample analytes and surrogates were flagged "H".

Subcontracted

All 8270 PAH SIM samples were subcontracted to TestAmerica Spokane from TestAmerica Anchorage.

TestAmerica Anchorage

Page 4 of 36 11/02/2010

Detection Summary

SDG: ATJ0068Project/Site: [none]

Client Sample ID: MP77GH-01 Lab Sample ID: ATJ0068-01

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0243

RL

0.0115 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total4.53 E 0.0286 mg/kg dry 33.3

☼Ethylbenzene EPA 8260B total5.00 E 0.0286 mg/kg dry 33.3

☼Xylenes (total) EPA 8260B total15.1 E 0.0430 mg/kg dry 33.3

☼Toluene - RE1 EPA 8260B total6.17 H2, RL7 0.430 mg/kg dry 500

☼Ethylbenzene - RE1 EPA 8260B total17.4 H2, RL7 0.430 mg/kg dry 500

☼Xylenes (total) - RE1 EPA 8260B total78.4 H2, RL7 0.645 mg/kg dry 500

☼Diesel Range Organics AK 102 total54.2 Q4 21.2 mg/kg dry 1

☼Diesel Range Organics - RE1 AK 102 total7320 RL7, Q2 212 mg/kg dry 10

Client Sample ID: MP77GH-02 Lab Sample ID: ATJ0068-02

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0687

RL

0.0225 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total10.0 E 0.0563 mg/kg dry 33.3

☼Ethylbenzene EPA 8260B total10.9 E 0.0563 mg/kg dry 33.3

☼Xylenes (total) EPA 8260B total33.0 E 0.0845 mg/kg dry 33.3

☼Toluene - RE1 EPA 8260B total11.7 H2, RL7 0.846 mg/kg dry 500

☼Ethylbenzene - RE1 EPA 8260B total28.8 H2, RL7 0.846 mg/kg dry 500

☼Xylenes (total) - RE1 EPA 8260B total133 H2, RL7 1.27 mg/kg dry 500

☼Diesel Range Organics AK 102 total13500 RL7, Q2 232 mg/kg dry 10

Client Sample ID: MP77GH-03 Lab Sample ID: ATJ0068-03

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0114

RL

0.0106 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total1.64 0.0265 mg/kg dry 33.3

☼Ethylbenzene EPA 8260B total3.02 E 0.0265 mg/kg dry 33.3

☼Xylenes (total) EPA 8260B total9.84 E 0.0398 mg/kg dry 33.3

☼Ethylbenzene - RE1 EPA 8260B total4.32 H2, RL7 0.398 mg/kg dry 500

☼Xylenes (total) - RE1 EPA 8260B total23.7 H2, RL7 0.597 mg/kg dry 500

☼Diesel Range Organics AK 102 total6170 RL7, Q2 222 mg/kg dry 10

Client Sample ID: MP77GH-04 Lab Sample ID: ATJ0068-04

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Toluene 0.471

RL

0.0375 mg/kg dry EPA 8260B total33.3

MDL

☼Ethylbenzene EPA 8260B total1.28 0.0375 mg/kg dry 33.3

☼Xylenes (total) EPA 8260B total6.44 0.0563 mg/kg dry 33.3

☼Diesel Range Organics AK 102 total45.2 21.5 mg/kg dry 1

Client Sample ID: MP77GH-05 Lab Sample ID: ATJ0068-05

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Toluene 0.316 H

RL

0.0239 mg/kg dry EPA 8260B total33.3

MDL

☼Ethylbenzene EPA 8260B total0.267 H 0.0239 mg/kg dry 33.3

☼Xylenes (total) EPA 8260B total1.41 H 0.0359 mg/kg dry 33.3

☼Diesel Range Organics AK 102 total39.0 Q11 20.9 mg/kg dry 1

Client Sample ID: MP77GH-06 Lab Sample ID: ATJ0068-06

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0247 H

RL

0.0167 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total5.29 H 0.0418 mg/kg dry 33.3

TestAmerica Anchorage

Page 5 of 36 11/02/2010

Detection Summary

SDG: ATJ0068Project/Site: [none]

Client Sample ID: MP77GH-06 (Continued) Lab Sample ID: ATJ0068-06

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Ethylbenzene - RE1 15.1 H, RL7

RL

0.628 mg/kg dry EPA 8260B total500

MDL

☼Xylenes (total) - RE1 EPA 8260B total71.2 H, RL7 0.942 mg/kg dry 500

☼2-Methylnaphthalene EPA 8270 mod. total2.21 0.213 mg/kg dry 20

☼Diesel Range Organics AK 102 total6460 RL7, Q2 207 mg/kg dry 10

Client Sample ID: MP77GH-07 Lab Sample ID: ATJ0068-07

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0300 H

RL

0.0126 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total4.76 H 0.0316 mg/kg dry 33.3

☼Ethylbenzene - RE1 EPA 8260B total13.6 H, RL7 0.474 mg/kg dry 500

☼Xylenes (total) - RE1 EPA 8260B total64.5 H, RL7 0.711 mg/kg dry 500

☼Diesel Range Organics AK 102 total7770 RL7, Q2 213 mg/kg dry 10

Client Sample ID: MP77GH-DUP Lab Sample ID: ATJ0068-08

Analyte Result Qualifier Unit Method Prep TypeD

Dil Fac

Benzene 0.0266 H

RL

0.0177 mg/kg dry EPA 8260B total33.3

MDL

☼Toluene EPA 8260B total5.70 H 0.0443 mg/kg dry 33.3

☼Ethylbenzene - RE1 EPA 8260B total19.3 H, RL7 0.665 mg/kg dry 500

☼Xylenes (total) - RE1 EPA 8260B total89.3 H, RL7 0.998 mg/kg dry 500

☼2-Methylnaphthalene EPA 8270 mod. total2.03 0.216 mg/kg dry 20

☼Diesel Range Organics AK 102 total6760 RL7, Q2 213 mg/kg dry 10

Client Sample ID: Trip Blank Lab Sample ID: ATJ0068-09

No Detections.

TestAmerica Anchorage

Page 6 of 36 11/02/2010

Analytical Data

SDG: ATJ0068Project/Site: [none]

Method: EPA 8260B - Selected Volatile Organic Compounds per EPA Method 8260B

Lab Sample ID: ATJ0068-01Client Sample ID: MP77GH-01

Matrix: SoilDate Collected: 10/13/10 11:11

Percent Solids: 93.3Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0243 0.0115 mg/kg dry ☼ 10/25/10 11:24 10/26/10 06:25 33.3

Analyte

0.0286 mg/kg dry 10/25/10 11:24 10/26/10 06:25 33.3☼Toluene 4.53 E

0.0286 mg/kg dry 10/25/10 11:24 10/26/10 06:25 33.3☼Ethylbenzene 5.00 E

0.0430 mg/kg dry 10/25/10 11:24 10/26/10 06:25 33.3☼Xylenes (total) 15.1 E

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 100 75 - 125 10/25/10 11:24 10/26/10 06:25 33.3

Surrogate a,a,a-TFT 89.9 10/25/10 11:24 10/26/10 06:25 33.350 - 150

Toluene-d8 145 ZX 10/25/10 11:24 10/26/10 06:25 33.375 - 125

4-BFB 107 10/25/10 11:24 10/26/10 06:25 33.375 - 125

Lab Sample ID: ATJ0068-02Client Sample ID: MP77GH-02

Matrix: SoilDate Collected: 10/13/10 11:25

Percent Solids: 85.6Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0687 0.0225 mg/kg dry ☼ 10/25/10 11:24 10/26/10 08:01 33.3

Analyte

0.0563 mg/kg dry 10/25/10 11:24 10/26/10 08:01 33.3☼Toluene 10.0 E

0.0563 mg/kg dry 10/25/10 11:24 10/26/10 08:01 33.3☼Ethylbenzene 10.9 E

0.0845 mg/kg dry 10/25/10 11:24 10/26/10 08:01 33.3☼Xylenes (total) 33.0 E

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 97.3 75 - 125 10/25/10 11:24 10/26/10 08:01 33.3

Surrogate a,a,a-TFT 88.0 10/25/10 11:24 10/26/10 08:01 33.350 - 150

Toluene-d8 145 ZX 10/25/10 11:24 10/26/10 08:01 33.375 - 125

4-BFB 112 10/25/10 11:24 10/26/10 08:01 33.375 - 125

Lab Sample ID: ATJ0068-03Client Sample ID: MP77GH-03

Matrix: SoilDate Collected: 10/13/10 14:01

Percent Solids: 89.7Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0114 0.0106 mg/kg dry ☼ 10/25/10 11:24 10/26/10 08:34 33.3

Analyte

0.0265 mg/kg dry 10/25/10 11:24 10/26/10 08:34 33.3☼Toluene 1.64

0.0265 mg/kg dry 10/25/10 11:24 10/26/10 08:34 33.3☼Ethylbenzene 3.02 E

0.0398 mg/kg dry 10/25/10 11:24 10/26/10 08:34 33.3☼Xylenes (total) 9.84 E

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 94.3 75 - 125 10/25/10 11:24 10/26/10 08:34 33.3

Surrogate a,a,a-TFT 116 10/25/10 11:24 10/26/10 08:34 33.350 - 150

Toluene-d8 112 10/25/10 11:24 10/26/10 08:34 33.375 - 125

4-BFB 102 10/25/10 11:24 10/26/10 08:34 33.375 - 125

Lab Sample ID: ATJ0068-04Client Sample ID: MP77GH-04

Matrix: SoilDate Collected: 10/13/10 14:17

Percent Solids: 91Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene ND 0.0150 mg/kg dry ☼ 10/25/10 11:24 10/26/10 09:06 33.3

Analyte

0.0375 mg/kg dry 10/25/10 11:24 10/26/10 09:06 33.3☼Toluene 0.471

0.0375 mg/kg dry 10/25/10 11:24 10/26/10 09:06 33.3☼Ethylbenzene 1.28

0.0563 mg/kg dry 10/25/10 11:24 10/26/10 09:06 33.3☼Xylenes (total) 6.44

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 94.7 75 - 125 10/25/10 11:24 10/26/10 09:06 33.3

Surrogate

TestAmerica Anchorage

Page 7 of 36 11/02/2010

SDG: ATJ0068Project/Site: [none]

Method: EPA 8260B - Selected Volatile Organic Compounds per EPA Method 8260B (Continued)

Lab Sample ID: ATJ0068-04Client Sample ID: MP77GH-04

Matrix: SoilDate Collected: 10/13/10 14:17

Percent Solids: 91Date Received: 10/19/10 09:30

Qualifier Prepared Analyzed Dil Fac % Recovery Limits a,a,a-TFT 98.4 50 - 150 10/25/10 11:24 10/26/10 09:06 33.3

Surrogate

Toluene-d8 99.0 10/25/10 11:24 10/26/10 09:06 33.375 - 125

4-BFB 104 10/25/10 11:24 10/26/10 09:06 33.375 - 125

Lab Sample ID: ATJ0068-05Client Sample ID: MP77GH-05

Matrix: SoilDate Collected: 10/14/10 13:05

Percent Solids: 94.2Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene ND H 0.00958 mg/kg dry ☼ 10/29/10 08:57 10/31/10 07:21 33.3

Analyte

0.0239 mg/kg dry 10/29/10 08:57 10/31/10 07:21 33.3☼Toluene 0.316 H

0.0239 mg/kg dry 10/29/10 08:57 10/31/10 07:21 33.3☼Ethylbenzene 0.267 H

0.0359 mg/kg dry 10/29/10 08:57 10/31/10 07:21 33.3☼Xylenes (total) 1.41 H

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 96.0 H 75 - 125 10/29/10 08:57 10/31/10 07:21 33.3

Surrogate a,a,a-TFT 83.3 H 10/29/10 08:57 10/31/10 07:21 33.350 - 150

Toluene-d8 97.2 H 10/29/10 08:57 10/31/10 07:21 33.375 - 125

4-BFB 96.6 H 10/29/10 08:57 10/31/10 07:21 33.375 - 125

Lab Sample ID: ATJ0068-06Client Sample ID: MP77GH-06

Matrix: SoilDate Collected: 10/14/10 13:21

Percent Solids: 92.7Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0247 H 0.0167 mg/kg dry ☼ 10/29/10 08:57 10/31/10 11:35 33.3

Analyte

0.0418 mg/kg dry 10/29/10 08:57 10/31/10 11:35 33.3☼Toluene 5.29 H

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 95.1 H 75 - 125 10/29/10 08:57 10/31/10 11:35 33.3

Surrogate a,a,a-TFT 85.2 H 10/29/10 08:57 10/31/10 11:35 33.350 - 150

Toluene-d8 142 H, ZX 10/29/10 08:57 10/31/10 11:35 33.375 - 125

4-BFB 96.5 H 10/29/10 08:57 10/31/10 11:35 33.375 - 125

Lab Sample ID: ATJ0068-07Client Sample ID: MP77GH-07

Matrix: SoilDate Collected: 10/14/10 13:34

Percent Solids: 93.9Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0300 H 0.0126 mg/kg dry ☼ 10/29/10 08:57 10/31/10 12:38 33.3

Analyte

0.0316 mg/kg dry 10/29/10 08:57 10/31/10 12:38 33.3☼Toluene 4.76 H

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 92.5 H 75 - 125 10/29/10 08:57 10/31/10 12:38 33.3

Surrogate a,a,a-TFT 89.5 H 10/29/10 08:57 10/31/10 12:38 33.350 - 150

Toluene-d8 144 H, ZX 10/29/10 08:57 10/31/10 12:38 33.375 - 125

4-BFB 98.1 H 10/29/10 08:57 10/31/10 12:38 33.375 - 125

Lab Sample ID: ATJ0068-08Client Sample ID: MP77GH-DUP

Matrix: SoilDate Collected: 10/14/10 13:50

Percent Solids: 93.5Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene 0.0266 H 0.0177 mg/kg dry ☼ 10/29/10 08:57 10/31/10 13:42 33.3

Analyte

0.0443 mg/kg dry 10/29/10 08:57 10/31/10 13:42 33.3☼Toluene 5.70 H

TestAmerica Anchorage

Page 8 of 36 11/02/2010

SDG: ATJ0068Project/Site: [none]

Method: EPA 8260B - Selected Volatile Organic Compounds per EPA Method 8260B (Continued)

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 95.1 H 75 - 125 10/29/10 08:57 10/31/10 13:42 33.3

Surrogate a,a,a-TFT 83.8 H 10/29/10 08:57 10/31/10 13:42 33.350 - 150

Toluene-d8 142 H, ZX 10/29/10 08:57 10/31/10 13:42 33.375 - 125

4-BFB 94.3 H 10/29/10 08:57 10/31/10 13:42 33.375 - 125

Lab Sample ID: ATJ0068-09Client Sample ID: Trip Blank

Matrix: SoilDate Collected: 10/14/10 00:00

Percent Solids: 100Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Benzene ND H 0.0133 mg/kg dry ☼ 10/29/10 08:57 10/30/10 17:32 33.3

Analyte

0.0333 mg/kg dry 10/29/10 08:57 10/30/10 17:32 33.3☼Toluene ND H

0.0333 mg/kg dry 10/29/10 08:57 10/30/10 17:32 33.3☼Ethylbenzene ND H

0.0500 mg/kg dry 10/29/10 08:57 10/30/10 17:32 33.3☼Xylenes (total) ND H

Qualifier Prepared Analyzed Dil Fac % Recovery Limits

Dibromofluoromethane 95.7 H 75 - 125 10/29/10 08:57 10/30/10 17:32 33.3

Surrogate a,a,a-TFT 86.4 H 10/29/10 08:57 10/30/10 17:32 33.350 - 150

Toluene-d8 97.5 H 10/29/10 08:57 10/30/10 17:32 33.375 - 125

4-BFB 100 H 10/29/10 08:57 10/30/10 17:32 33.375 - 125

Method: EPA 8260B - Selected Volatile Organic Compounds per EPA Method 8260B - RE1

Lab Sample ID: ATJ0068-01Client Sample ID: MP77GH-01

Matrix: SoilDate Collected: 10/13/10 11:11

Percent Solids: 93.3Date Received: 10/19/10 09:30 Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac

Toluene 6.17 H2, RL7 0.430 mg/kg dry ☼ 10/29/10 08:57 10/31/10 07:53 500

Analyte

0.430 mg/kg dry 10/29/10 08:57 10/31/10 07:53 500☼Ethylbenzene 17.4 H2, RL7

0.64…