Broadway Recovery Center 707 W Burnside Street Portland, Oregon 97209 ECSI No: 5413

Independent Cleanup Pathway Report

Prepared by

Oregon & Washington

April 5, 2011

EXECUTIVE SUMMARY Investigation of the site disclosed a leaking underground storage tank (LUST) and an area of contaminated fill with concentrations of lead and PAHs in soil and tetrachloroethene in soil gas above the Oregon Department of Environmental Quality (DEQ) Risk-Based Concentrations for urban residential exposure. The leaking UST (LUST) and contaminated fill were successfully removed from the site during redevelopment activities in October and November 2010. We recommend DEQ issue a No Further Action status for ECSI 5413.

Geotechnical Resources, Inc. (GRI) 9725 SW Beaverton-Hillsdale Hwy, Suite 140 Beaverton, OR 97005 503-641-3478

TABLE OF CONTENTS Page 1.0 INTRODUCTION ...... 1 1.1 Project Introduction ...... 1 1.2 Purpose and Objectives ...... 1 2.0 SITE BACKGROUND ...... 1 2.1 Site Location ...... 1 2.2 Site Description ...... 1 2.3 Site History and Facility Operations ...... 1 2.3.1 Ownership History ...... 2 2.3.2 Operating History ...... 2 2.4 Regulatory History ...... 3 2.5 Previous Investigation ...... 3 3.0 ENVIRONMENTAL SETTING ...... 3 3.1 Climate Information ...... 3 3.2 Topography ...... 4 3.3 Surface Water Hydrology ...... 4 3.4 Regional and Site Geology and Soils ...... 4 3.5 Hydrogeology ...... 4 4.0 SITE INVESTIGATION...... 4 4.1 Site Characterization Plan ...... 4 4.2 Sampling Methods ...... 5 4.3 Sampling Results ...... 5 4.4 Data Validation ...... 6 5.0 SOURCES, NATURE AND EXTENT OF CONTAMINATION ...... 7 5.1 Define the Sources of Contamination...... 7 5.2 Nature of Contamination ...... 7 5.3 Extent of Contamination...... 8 5.3.1 Soil ...... 8 5.3.2 Groundwater ...... 9 5.3.3 Other Media ...... 9 6.0 EXPOSURE PATHWAY SUMMARY ...... 10 6.1 Groundwater Pathways of Exposure ...... 10 6.2 Direct Contact (Soil, Structures) Pathways of Exposure ...... 10 6.3 Surface Water and Sediment Pathways of Exposure ...... 10 6.4 Air Pathways of Exposure ...... 10 7.0 CONTAMINANT FATE AND TRANSPORT ...... 10 7.1 Contaminant Transport ...... 10 7.2 Contaminant Degradation/Persistence ...... 11 7.3 Conceptual Site Model ...... 12 7.4 Locality of the Facility ...... 12

8.0 LAND AND WATER USE DETERMINATIONS...... 12 8.1 Current and Future Land Use ...... 12 8.2 Beneficial Uses of Water ...... 13 9.0 RISK ASSESSMENT ...... 13 9.1 Human Health Risk Assessment ...... 13 9.2 Baseline Ecological Risk Assessment ...... 13 10.0 CLEANUP STANDARDS AND HOT SPOTS ...... 13 10.1 Selection of Cleanup Standards ...... 13 10.2 Final Hot Spot Determination ...... 13 11.0 REMOVAL OR REMEDIAL ACTION REPORT ...... 14 11.1 Work Completed ...... 14 11.2 Verification Sampling ...... 15 11.3 Engineering Controls ...... 15 12.0 RESIDUAL RISK ...... 15 12.1 Residual Risk Assessment ...... 15 12.2 Protection of Human Health and the Environment ...... 16 13.0 REFERENCES ...... 16 14.0 LIMITATIONS AND SIGNATURES ...... 16

List of Figures 1 Vicinity Map 2 Site Map with 1950 Fueling Station 3 Sample Location Map 4 Geologic Cross Section 5 Groundwater Elevation Contour Map 6 Contaminated Fill Analytical Results 7 VOCs in Groundwater 8 VOCs in Soil Gas 9 Areas of Concern 10 Gasoline In Soil 11 Conceptual Site Model – Exposure 12 Conceptual Site Model – RBC 13 Soil Removal at Site 14 Confirmation Soil Samples

List of Tables 1 Soil Analytical Data – Contaminated Fill 2 Soil Analytical Data – Building Footprint 3 Soil Analytical Data - Sidewalk 4 Groundwater Analytical Data 5 Soil Gas Analytical Data 6 Duplicate Analysis 7 Cleanup Standards

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List of Appendices A. Work Plan B. Field Investigation Procedures C. Underground Tank Decommission Report (Soil Solutions, Inc.) D. Laboratory Data Reports E. Well Survey/Beneficial Use Determination Documentation F. Site-Specific Health and Safety Plan G. Disposal Receipts H. Buried Tank Removal Documentation (Soil Solutions, Inc.) I. Site Photographs

1.0 INTRODUCTION 1.1 Project Introduction Prior to development with a fast food restaurant in 1978, the site had been used as an automotive repair and fueling station. The owner of the property, Central City Concern (CCC), entered into the Independent Cleanup Program in August 2010 with the Oregon Department of Environmental Quality (DEQ) to address residual contamination from the automotive use of the site. The site was listed in the Environmental Cleanup Site Information (ECSI) database in August 2010. The site is identified as ECSI No. 5413.

GRI was retained by CCC through the project manager, Gerding Edlen Development. After approval of the Environmental Services Work Plan (GRI, 2010), sampling and removal work began at the site in September 2010.

1.2 Purpose and Objectives This report outlines the soil sampling and removal actions undertaken to provide a technical basis for obtaining site regulatory closure from the DEQ and provides a technical response to review items provided by DEQ in a letter dated December 28, 2010.

2.0 SITE BACKGROUND 2.1 Site Location The general location of the Broadway Recover Center (BRC) is shown on the Vicinity Map, Figure 1. The site is located at 707 W Burnside Street, Portland, Oregon, 97209, at latitude 45.5233°, longitude - 122.6777°. The site is tax lot R140520, lots 1, 4, 5 and 8, in block 53 within township 1N, range 1E, section 34.

2.2 Site Description The site is currently being developed for CCC as the BRC, a health care clinic for the local population. During the development process, a Burger King restaurant and parking lot were demolished. The site is fenced during construction. The three-story BRC will occupy the entire site. A vault for collection of stormwater from the roof will be located beneath the building and will be connected to the City of Portland’s stormwater system.

As shown on the Site Map, Figure 2, the site is bordered by NW Broadway on the east and W Burnside Street on the south. NW Couch Street is located to the north, and a multi-story residential building and single-story commercial building is to the west. The surrounding area is mixed development with commercial, retail, and residential uses.

2.3 Site History and Facility Operations Sanborn maps for the site were reviewed online through the Multnomah County Library system. The maps indicate site was first developed by 1889 with single-family residences and a billiard table repair shop in the center of the site. By 1901, the repair shop had been replaced with a residence. In 1909, the southern half of the site was occupied by an auto repair shop, and the northern half of the site was vacant. By 1950, the entire site was occupied by auto service and repair facilities.

According to Hahn and Associates Inc.’s (HAI) Phase II Environmental Site Assessment report (HAI, 2009), a new service and fueling station was built on the southern half of the property in the 1950s and included two fueling islands and associated piping, four underground storage tanks (USTs), an oil UST, and two hydraulic hoists. The former location of the station is shown on Figure 2.

The site was redeveloped in approximately 1978 with a Burger King restaurant on the southern half of the site and an asphalt-paved parking lot on the northern half of the site. Burger King closed the restaurant in 2004; the parking lot continued operation until demolition in 2010.

2.3.1 Ownership History The site is currently owned by CCC, a non-profit corporation. They purchased the site in December 2009 from Broadway Burnside Portland LLC. The site was consolidated by E. Henry Wemme, a real estate investor, in the early 1910s. After his death, the site was owned by the E. Henry Wemme Endowment Fund, which came to be known as the Oregon Community Foundation. In 2005, the Oregon Community Foundation sold the property to Katsam LLC, who sold the property to Broadway Burnside in 2007.

2.3.2 Operating History Historic records indicate as many as 12 USTs may have been located at the site at various times. Two of the USTs may have been located beneath the Burger King building on the south half of the site; the other 10 were present below the sidewalk on the east and south sides of the site. HAI reports the following UST documentation on their Figure 2:

1 Mayor’s Message: 300-gallon UST installed 1913 in sidewalk at NW corner of NW Broadway and W Burnside Street (exact location not known) (1 tank)

2 Mayor’s Message: UST installed in 1927? in sidewalk at 25 NW Broadway (capacity and exact location not known) (1 tank)

3 PDOT Files: UST installed 1930 on W Burnside Street, 40 feet west of NW Broadway (capacity not known) (1 tank)

4 Portland Fire Bureau: 2,000-gallon UST replacement 1948 inside building at 17 NW Broadway (exact location not known; may be one of the tanks under 5 below) (1 tank)

5 PDOT Files: 4 x 2,000 USTs installed 1948 beneath sidewalk in NW Broadway (locations from 1950 site plan) (4 tanks)

6 Portland Fire Bureau: 550-gallon UST installed 1950 (location from 1950 site plan) (1 tank)

7 Portland Fire Bureau: 2 USTs installed 1950 beneath sidewalk in W Burnside Street (capacity and locations from 1950 site plan) (2 tanks)

8 UST identified by geophysical survey conducted in 2004 (could be same tanks as Numbers 1 or 2) (1 tank)

As described in HAI’s 2009 report, a geophysical survey completed in 2004 covered the sidewalks, landscaping, and parking lot and indicated that one tank remained beneath the sidewalk along NW Broadway. The other tanks were likely removed during site redevelopment activities in the 1950s and 1970s.

The 2004 geophysical survey did not cover the area under the Burger King building. A geophysical survey of the building footprint was not completed after building demolition; significant amounts of metals and other debris were present on the surface of the site. No evidence of USTs was disclosed during piling installation across the site in 2010 and 2011.

The most recent occupant, Burger King, did not store or use hazardous materials as part of its operations.

2.4 Regulatory History The Oregon DEQ Facility Profiler and U.S. EPA Envirofacts database were searched online. Prior to being listed in the ECSI database, environmental records or permits associated with the site beyond the UST records discussed above were not found.

2.5 Previous Investigation Previous environmental work on the site was completed by Evergreen Environmental Management, LLC; PBS Engineering and Environmental (PBS); and Hahn and Associates, Inc. (HAI). GRI received a copy of the November 12, 2009, report by HAI entitled, “Phase II Environmental Site Assessment Report, 707 West Burnside Street.” The report notes four areas of concern:

1) A UST remains below the NW Broadway sidewalk. This UST appears to have leaked and impacted the immediately surrounding soil and groundwater.

2) An area of contaminated fill is located on the northern portion of the property. The log of a boring drilled in this area indicates the fill is approximately 5 to 6 ft thick.

3) Gasoline-contaminated soil is present in the area of a former UST that was located below the NW Broadway sidewalk.

4) Chlorinated solvents are present in groundwater along the western edge of the property.

Previous sample locations at the site are summarized on the Sample Location Map, Figure 3. HAI completed soil, groundwater, and soil gas sampling. The HAI report included these data as well as summaries of soil and groundwater sampling and analysis completed by others. Unless otherwise noted, references to previous data refer to HAI reported sampling and analysis.

3.0 ENVIRONMENTAL SETTING 3.1 Climate Information The National Weather Service Forecast Office states that the annual precipitation for Portland, Oregon, is 36.3 in./year; 26.93 in. of rain on average falls between October and March when the prevailing winds are east-southeast. The prevailing winds are northwest from April through September. The mean, minimum,

and maximum temperatures are 53.6 °F, 44.5 °F, and 62.6 °F throughout the year. The average maximum monthly temperature is during August and is 80.3 °F, and the average minimum monthly temperature is during January and is 39.6 °F.

3.2 Topography The site is relatively flat at elevation 32 ft City of Portland Vertical Datum (PVD). The surrounding area is also generally flat and has a slight slope down from west to east.

3.3 Surface Water Hydrology The site and surrounding area is served by the City of Portland for drinking water, sewer system and stormwater drainage. The closest body of water is the Willamette River located approximately 0.4 miles to the east. The Willamette River flows northward and is used for recreational and industrial purposes.

The project site is located in Zone X, which is not within a 100-year floodplain according to the FEMA Flood Insurance Rate Map Number 4101830093E, which was revised October 19, 2004.

3.4 Regional and Site Geology and Soils The soil at the site is identified in the Multnomah County Soil Survey as Urban Land, 3 to 15% slopes. The site is mantled with fill to a depth of 5 to 8 ft. As shown on Figure 4, below the former Burger King, the fill is thinner and composed primarily of silty gravel with scattered brick fragments. In the northern portion of the lot, the fill extends to a depth of approximately 8 ft, where the floor of a finished basement was uncovered during site excavation. The backfill in this area consists of brick, concrete, and other debris in a matrix of sand and silt.

The native material beneath the fill consists of silt to sandy silt. Dense gravel underlies the silt at a depth of approximately 26 to 29 ft.

3.5 Hydrogeology Groundwater was observed at depths of 22 to 24.5 ft during the Phase II Environmental Site Assessment by HAI (HAI, 2009). During field work, GRI measured groundwater at depths of 22.5 to 23.5 ft below the ground surface on September 24, 2010. Based on surveyed boring elevations, the groundwater elevations varied from 8.3 to 8.7 ft PVD. As shown on Figure 5, groundwater flow is to the southeast.

Groundwater flows in downtown Portland are highly altered due to the long history of development and high ratio of impervious surfaces. Groundwater flow is influenced by the Willamette River, which can affect gradient as well as flow direction.

4.0 SITE INVESTIGATION 4.1 Site Characterization Plan The Work Plan for the site was submitted to DEQ on September 14, 2010, and subsequently updated on September 22, 2010, prior to beginning field work (GRI, 2010). The work plan is provided in Appendix A. Eleven boring locations were distributed across the site as discussed in the work plan to address the four areas of concern outlined by HAI (2009). Five borings, GRI-1 through -5, were completed in the area of the contaminated fill. Based upon analytical results, four subsequent borings, GRI-12 through -15, were completed in this area prior to excavation to assist in delineating the contaminated fill. During excavation,

we found that the contaminated fill was placed above a concrete basement floor located at a depth of approximately 8 ft below the ground surface.

One boring, GRI-6, was completed in the sidewalk to analyze soils for gasoline in an area of a removed UST. Three borings, GRI-7 through -9, were completed beneath the building footprint. Two borings, GRI- 10 and -11, were completed along the western edge of the property to determine the impact from previously measured chlorinated solvents. In addition, as outlined in Appendix A, the remaining gasoline tank on site was removed and confirmation sampling completed.

4.2 Sampling Methods Borings were completed using direct push technology by Cascade Drilling of Clackamas, Oregon, on September 24 and October 4, 2010. GRI collected soil, groundwater, and soil gas samples from the borings. Detailed sampling methods are discussed in Appendix B.

The gasoline UST was removed from beneath the NW Broadway sidewalk on September 27, 2010, by Soil Solutions Environmental Services. Excavation of impacted soil was completed on September 29, 2010. Soil Solutions’ report, including sampling methodology and results, is provided in Appendix C.

4.3 Sampling Results Analytical results are summarized in Tables 1 through 5; laboratory reports are provided in Appendix D and tabulated geographically on Figure 6.

Based on analytical results shown on Figure 6, the contaminated fill area is approximately 40 by 40 ft and appears to be centered at boring P-14. This area is contaminated with diesel, heavy oil, polycyclic aromatic hydrocarbons (PAHs), and lead. The results of confirmation samples, Fill North, Fill WestS, Fill South and Fill WestN, collected during the excavation are included in Table 1 and Appendix D. The confirmation samples obtained from the north and northwest sidewalls indicate the contaminated material has been removed. The south and southwest samples indicated the presence of heavy oil, elevated lead, and PAHs. This area was excavated further and based upon pre-excavation sampling results, the limits of excavation were GRI-12 to the south and GRI-15 to the west. Due to the presence of a finished slab along the base of the excavation and a brick wall along the east wall of the excavation, bottom and east wall samples were not collected.

Soil samples were collected at depths of 6 to 14 ft from borings GRI-7 through GRI-9 located in the former Burger King footprint; test results are provided in Table 2. VOCs were not detected in the borings; however, several compounds had method reporting limits (MRLs) above the Risk-Based Concentrations (RBCs) for vapor intrusion into buildings for urban residential receptors. These compounds are bromomethane, carbon tetrachloride, chloroform, tetrachloroethene, trichloroethene and vinyl chloride. Discussion with TestAmerica disclosed that these chemicals were not detected to the method detection limits (MDLs) of approximately 50 g/kg, which is below the RBC for all but trichloroethene. In a soil sample obtained from a depth of 18 ft in boring GRI-8, gasoline was detectedat a concentration of 106 mg/kg, and diesel was detected at a concentration of 37.4 mg/kg, with the lab qualification that the reported value is primarily due to overlap from a gasoline-range product. GRI-8 is located approximately 25 ft west northwest of the LUST beneath the sidewalk of NW Broadway. This result appears to be related to the LUST beneath the sidewalk of NW Broadway. Soil samples from a depth of 21 ft below the LUST

were measured at 1,740 to 1,910 mg/kg. Groundwater flow direction at the time of sampling was to the southeast. The groundwater gradient was relatively flat at 0.005 ft/ft and can be influenced by water levels of the Willamette River.

Gasoline and VOCs were not detected in the area with the removed gasoline tank (GRI-6), tabulated in Table 3. The 2009 HAI report indicated low levels of gasoline that were not quantified. Gasoline was not detected in the boring. Bromomethane, carbon tetrachloride, chloroform, tetrachloroethene, trichloroethene, and vinyl chloride were not detected in the samples; however, the MRL for the samples are above the RBC for vapor intrusion into buildings for urban residential receptors. Discussion with TestAmerica disclosed these chemicals were not detected to the MDLs of approximately 50 g/kg, which is below the RBC for all but trichloroethene.

As tabulated on Figure 7, contaminants were detected in groundwater in borings GRI-5 and GRI-9 through -11. The contamination detected in borings GRI-5 and -11 was consistent with previous sampling at the site at locations B-5 and B-7, which are also noted on Figure 7. Acetone, sec-butylbenze, and n- propylbenzene were detected in groundwater obtained from boring GRI-10.

Diesel-range petroleum hydrocarbons were detected in the groundwater obtained from boring GRI-9 at a concentration of 0.185 mg/kg. This value is qualified by the lab as possibly due to biogenic interference.

Previous soil gas sampling at the site detected several contaminants. These detections, along with data from GRI samples, are tabulated in Table 5 and geographically on Figure 8. Soil gas results are consistent with previous investigations at the site. The leak analysis for sample GRI-10 showed 16% helium, and GRI-11 showed 6.5% helium, indicating a breakthrough of atmospheric gas down the borehole or sample train. Results from these sample locations should be considered approximate.

4.4 Data Validation GRI completed a data quality assurance review of the laboratory analytical reports for the BRC soil, soil gas, and groundwater samples to verify that the laboratory Quality Assurance/Quality Control (QA/QC) procedures were completed and documented and that the quality of the reported data is sufficient to support its intended use. No contaminants were detected in the field and trip blanks collected during soil and groundwater sampling. Sample and duplicate results were compared, and the relative percent difference (RPD) is reported in Table 6. The RPDs calculated are acceptable for QA/QC purposes.

The MDL for several VOCs in some soil samples were above the applicable RBCs for these contaminants due to the small field volume of material collected and lab analysis using the EPA Method 5035 trap and purge system. These results are valid; however, they do not indicate the absence of the affected compounds. The compounds affected are bromomethane, carbon tetrachloride, chloroform, tetrachloroethene, trichloroethene, and vinyl chloride. Based on discussions with TestAmerica, these compounds were not detected in any of the soil samples at the MDL of approximately 50 g/kg. The MDL is below the most stringent RBC of all the compounds except trichloroethene. Trichloroethene was detected in boring GRI-9 at 8.37 g/l, which is below all applicable RBCs for the site including vapor intrusion into buildings for urban residential receptors. Groundwater in boring GRI -9 was measured at a depth of 23.3 ft below ground. The soil samples from GRI-9 measured for VOCs were at a depth of 18 ft. Additionally, soil gas samples collected by HAI were located beneath the building slab and VOCs,

including trichloroethene, were not detected above the RBCs for urban residential receptors. In our opinion, based on the soil gas samples, groundwater samples, and discussions with TestAmerica, trichloroethene is not present in the soils at the site above applicable RBCs.

Two soil gas samples, GRI-10 and GRI-11, had helium results above 5%, indicating breakthrough of atmospheric air into the borehole, the results of these samples should be considered approximate. No results were rejected during validation, and, therefore, all reported results for this sampling event are usable for the established project purposes.

5.0 SOURCES, NATURE AND EXTENT OF CONTAMINATION 5.1 Define the Sources of Contamination There appear to have been four sources of contamination at the site. As indicated on Figure 9, each source impacts a different area of the site. The site was used as an auto fueling and repair facility before 1978. Soil gas across the site is impacted by this historic activity. Contaminated fill was located in the northeastern portion of the site. This appears to be related to historic backfill activities at the site. This fill was removed from the site. The second source of contamination is the LUST located under the sidewalk at NW Broadway. This tank and a majority of the impacted soil were removed from the site. Finally, groundwater at the site is impacted with chlorinated VOCs. The highest concentrations are located on the western edge of the site. The source of the VOCs is unknown but appears to be from off site.

5.2 Nature of Contamination Contamination at the site is present in the soil, groundwater, and soil gas. The soil gas contamination appears to be consistent with the historic use of the site as an automotive fueling and repair facility.

As part of this history, a gasoline UST was located in the sidewalk beneath NW Broadway in the southwest portion of the site. This UST leaked and impacted soil and groundwater beneath the tank. The tank and impacted soil were removed between September 27 and 29, 2010. The northern, southern, and eastern edges of the excavation were limited due to roads and other physical limitations. The western edge was excavated onto the site. Confirmation results shown on Figure 10 indicate the northern and eastern edges of the contamination were not excavated to non-detectable levels of gasoline. The excavation extended to the maximum reach of the backhoe. Analysis of groundwater and soil confirmation samples from the base of the excavation indicates the tank has impacted groundwater.

Contaminated fill at the site was emplaced during site redevelopment prior to 1978. The contaminants in the fill are diesel, heavy oil, PAHs, arsenic and lead. This contamination is limited to the soil in the northeastern portion of the site. The bottom of the fill is limited by a finished concrete slab in this region at a depth of 8 ft below the ground surface. The eastern limit of the fill is a brick wall located below the sidewalk of NW Broadway. This fill was removed during October 2010 while the site was being prepared for redevelopment.

Groundwater at the site is impacted by trichloroethene and cis-1,2-dichloroethene. Previous studies at the site have measured these contaminants. These chemicals were not detected in soil. The highest location is at boring GRI-11 in the southwest corner of the site.

Acetone, sec-butylbenzene, and n-propylbenzene were detected in groundwater near the northwest corner of the site. The source of these contaminants is also unknown, but appears to be limited to groundwater. Acetone is a common solvent, and the benzene compounds are present in gasoline.

5.3 Extent of Contamination Four areas of concern were noted for the project site:

1) A UST below the NW Broadway sidewalk.

2) An area of contaminated fill is located on the northern portion of the property.

3) Gasoline-contaminated soil present in the area of a former UST.

4) Chlorinated solvents are present in groundwater along the western edge of the property.

The UST was removed on September 27, 2010, by Soil Solutions, Inc. of Portland, Oregon, a DEQ- licensed service provider. A report of their activities, including disposal tickets, is provided in Appendix C. The map of gasoline samples and results are shown on Figure 10. Gasoline-contaminated soil remains below the street at NW Broadway, and residual amounts remain in the groundwater at the site. The bulk of the contaminated material has been removed from the site.

The area of contaminated fill is shown on Figure 6. The base of the fill was delineated by a finished concrete slab. This material was removed during site activities between October 18 and 25, 2010. A total of 652 tons of material was removed to the Waste Management landfill in Hillsboro, Oregon, by M & M Construction of Gresham, Oregon; a copy of the disposal tickets is provided in Appendix G. Included in the contaminated fill was a 675-gallon heating oil tank. Soil Solutions, Inc. removed the tank as outlined in Appendix H.

The gasoline-contaminated soil was not encountered during follow-up explorations completed on September 24, 2010. The HAI report indicates the gasoline was detected at a depth of 11 to 12 ft. Boring GRI-6 was located immediately adjacent to the previous boring, and soil samples were collected at depths of 11 and 15 ft. Contamination was not detected.

Groundwater samples were collected from four borings across the site and analyzed for VOCs. Chlorinated solvents were found in three of the borings. Results are shown on Figure 7.

5.3.1 Soil Tabulated soil results are grouped by area of impact on Tables 1 through 3.

Boring GRI-8 was located approximately 35 ft west of the LUST beneath NW Broadway sidewalk. Gasoline was detected at 106 mg/kg from a sample from a depth of 18 ft. Gasoline was not detected in the same boring at a depth of 9 ft. The tank and impacted soil, as practicable, was removed from the site. The maximum concentration of 1,910 mg/kg of gasoline left at the site was located at a depth of 21 ft in sample NPB collected by Soil Solutions. VOC analysis of this sample detected concentrations of sec- butylbenzene, ethylbenzene, isopropylbenzene, p-ispropylbenzene, naphthalene, n-propylbenzene, 1,2,4-

trimethylbenzene, 1,3,5-trimethylbenzene, and m,p-xylene. Full analytical results of Soil Solutions samples are included in Appendix C.

The soil associated with the contaminated fill in the northeast portion of the site was removed and disposed at Waste Management Hillsboro as non-hazardous, petroleum-impacted soil. The contaminated fill material was excavated to a depth of approximately 8 ft in an approximately 40- by 40-ft area centered on boring P-14. This area was overexcavated to the north, south, and west for construction purposes. The base of the fill was a finished concrete floor at a depth of 8 ft, which prevented migration of the contamination into the underlying native soil. Samples collected below the concrete slab prior to excavation did not indicate the presence of contaminants.

5.3.2 Groundwater Groundwater results are summarized in Table 4. As shown on Figure 7, trichloroethene and cis-1,2- dichloroethene were detected in three borings: GRI-5, -9, and -11. These contaminants were previously detected at the site in similar concentrations. The highest concentration is at boring GRI-11 in the southwest corner of the site. Previous work outlined in HAI’s 2009 report indicate trichloroethene and cis- 1,2-dichloroethene were detected on the same block east of the site. That work indicated the chlorinated VOCs are located along the western property boundary of the site.

Diesel was detected at 0.185 mg/l in soil from boring GRI-9. The laboratory flagged this detection as not having the pattern and range consistent with typical petroleum products, and the detection may be due to biogenic interference. The soil in this area consisted of native brown silt to sandy silt.

Acetone, sec-butylbenzene, and n-propylbenzene were detected in boring GRI-10, located near the northwest corner of the site. HAI’s 2009 report indicates that previous sampling completed by PBS in 2005 near this area detected chlorinated VOCs, but not these three chemicals. Groundwater flow in the vicinity of boring GRI-10 is from off site and flows from the northwest to the southeast.

5.3.3 Other Media Soil gas samples were obtained from a depth of 5 ft in borings GRI-5, -10, and -11. The test results are summarized in Table 5. Several VOCs were detected in the soil gas and appear to be widely distributed at low concentrations across the site. Tetrachloroethene was detected in boring GRI-5 located in the contaminated fill area; previous sampling by others detected tetrachloroethene in the shallow soil in this area. The detected concentration is above the soil gas concentration for vapor intrusion into buildings for urban residential uses. The soil in this area was removed as part of the site excavation.

Previous sampling by others detected dichlorofluoromethane in the soil gas samples; this round of soil gas sampling detected trichlorofluoromethane. Both chemicals are forms of Freon. Other detected compounds in soil gas from previous and current rounds of sampling are commonly associated with petroleum hydrocarbons. The concentrations of these chemicals are all below the vapor intrusion concentration standards.

6.0 EXPOSURE PATHWAY SUMMARY 6.1 Groundwater Pathways of Exposure As shown on Figure 5, groundwater at the site is at an elevation of 8 to 9 ft PVD, which corresponds to a depth of approximately 23 ft. Measurements obtained on September 24, 2010, indicate groundwater flows to the southeast and has a gradient of approximately 0.005 ft/ft. The upper portion of the aquifer is in the native material that consists of silt to silty sand. The site is underlain by dense gravel at a depth of approximately 28 to 30 ft.

A groundwater use survey was mailed to the owners of properties located within 500 ft of the project site. The survey and results are included in Appendix E; 69% of the property owners responded. The site is in an urban area with mixed commercial and residential development. The residential buildings are multi- tenant buildings. The survey results received indicate the City of Portland supplies water to the tenants and workers in the project vicinity. Local groundwater is not used and no future plans for use were noted. The responses indicate there are no wells within the boundary of the survey.

6.2 Direct Contact (Soil, Structures) Pathways of Exposure The BRC building will occupy the entire site, and there will not be any exposed soil. The site was graded, and the contaminated fill was removed from the site between October 18 and 25, 2010. The structure is being built with a slab-on-grade floor, and building construction workers will not be exposed to underlying soils.

6.3 Surface Water and Sediment Pathways of Exposure There are no surface water bodies on site. The Willamette River is located 0.4 miles east of the project site.

Stormwater from the roof of the BRC building will be collected on site into a subgrade vault and discharged into the City of Portland’s stormwater system during times of low flow. Stormwater from the sidewalks will be treated in vegetated swales prior to runoff into the street and stormwater collection system.

6.4 Air Pathways of Exposure As part of the construction plans, a 15-mil membrane will be placed under the building, minimizing the vapor intrusion pathway. The barrier used is a Stego Wrap 15-mil barrier composed of prime, virgin, and polyolefin resins and is designed as a moisture barrier. The seams and openings of the barrier were sealed with Stego tape and mastic as required by the manufacturer, Stego Industries. Based on soil gas results and comparison with applicable RBCs, an engineered vapor barrier is not required at the site. This membrane is not designed or installed as a formal engineering control.

7.0 CONTAMINANT FATE AND TRANSPORT 7.1 Contaminant Transport Contamination at the site is related to previous uses of the site as an automotive fueling and repair facility and a historic redevelopment of the site that introduced contaminated fill.

The contaminated fill is a solid and was placed under the area used most recently as an asphalt-paved parking lot. Chemicals associated with the contaminated fill include diesel, heavy oil, PAHs, and elevated arsenic and lead. Previous studies also disclosed chlorinated VOCs associated with the fill. The use as a paved parking lot prevented stormwater infiltration from causing leaching and transportation of the

chemicals associated with the fill. The presence of a finished concrete slab located beneath the backfilled area also limited transport of the chemicals. A brick wall located along the eastern boundary of the fill prevented the material from migrating off site. This contaminated material was removed during site redevelopment.

A leaking gasoline UST associated with the automotive history of the site was located in the sidewalk beneath NW Broadway and impacted the soil and groundwater around it. The tank was uncovered and removed between September 27 and 29, 2010, and as much soil as practicable was removed from around the tank location. Full excavation of the soil was prevented by physical limits such as the roadway, a fire hydrant, and backhoe limitations. Based upon confirmation sampling and previous groundwater sampling in this area, the groundwater has been impacted by gasoline. The soil excavation will limit further groundwater exposure.

The groundwater is also impacted by VOCs that include chlorinated solvents and gasoline constituents. The highest concentrations are on the west side of the site, which indicates the contamination originates off site. Measurements obtained on September 24, 2010, indicate groundwater flows to the southeast and has a gradient of approximately 0.005 ft/ft. The upper portion of the aquifer is in the native material that consists of silt to silty sand.

7.2 Contaminant Degradation/Persistence Contaminants remaining at the site include low levels of VOCs in soil gas, gasoline in soil and groundwater, and VOCs in groundwater. The source of the gasoline and the heaviest impacted soil has been removed from the site.

Soil gas contaminants have remained relatively steady from previous sampling in 2009 to current sampling in 2010. The site was covered with a building and parking lot since 1978. During redevelopment activities, the surface of the soil was removed to a depth of 3 to 8 ft over the entire site. The areas of excavation deeper than 3 ft were backfilled with crushed concrete fill. Clean crushed concrete was then placed across the site to a depth of 6 in, to serve as a work pad. The work pad was left in place to serve as support for the building slab.

Confirmation sampling and analysis were completed by GRI on November 5, 2010, to determine whether the concentrations in the vicinity of the contaminated fill were lowered to concentrations below the urban residential risk-based concentration (RBC) for soil gas concentrations. The sampling confirmed that VOCs in the vicinity of the contaminated fill have been reduced to below the urban residential RBC. The site redevelopment includes a building underlain by a moisture barrier that covers the entire site to prevent moisture from coming into contact with the building. It can be anticipated that any remaining soil gas contaminants will be relatively persistent due to lack of soil gas transfer with the atmosphere.

The low-level chlorinated VOCs in the groundwater have remained relatively constant from previously reported sampling in 2005 to the current sampling in 2010. Chlorinated VOCs are relatively persistent in the environment. Additional VOCs were detected in the northwest corner of the site in 2010. These contaminants: acetone, sec-butylbenzene and n-propylbenzene, are less persistent in the environment than the trichloroethene and cis-1,2-dichloroethene found elsewhere on the site.

7.3 Conceptual Site Model The Conceptual Site Model (CSM) is shown on Figures 11 and 12. Residual contamination at the site is located in soil gas, subsurface soils, and groundwater. The upper 3 ft of soil at the site was removed during site preparation, and contamination in surface soils was removed as part of this work. Normal users at the site will include workers. Potential receptors include occupational and future construction and excavation workers. The urban occupational receptors will be the normal users of the site.

Site development includes a building that will be underlain by a moisture barrier across the entire site. No soils will be exposed after construction of the BRC. Due to the building plan, soil gas and soils contact, ingestion, and inhalation will not be exposure routes for normal users of the site. Groundwater in the project vicinity is not and will not be used at the site; therefore, groundwater ingestion, contact, and inhalation will not be exposure routes.

Potential routes of exposure could include future excavation and construction workers inhaling, ingesting, or coming into contact with impacted subsurface soils. Groundwater is more than 20 ft below the ground surface, and construction workers will not be in contact with it. Therefore, the RBCs of interest for the site are those pertaining to soil ingestion, dermal contact, and inhalation for construction and excavation workers (RBCss).

The CSM also included consideration of soil concentrations for volatilization to outdoor air and soil concentrations for vapor intrusion into buildings (RBCso and RBCsi, respectively).

7.4 Locality of the Facility The locality of the facility (LOF) is any point where a human or an ecological receptor contacts or is reasonably likely to come into contact with chemical constituents from the site. The LOF takes into account the likelihood of the chemical constituents migrating over time. For this project, the entire site was delineated as the LOF.

Chemical analyses of groundwater samples have detected chemicals in groundwater along the western edge of the site and below the removed gasoline UST in the southeast corner of the site. A soil sample from the east wall of the LUST excavation at the eastern edge of the property revealed 365 mg/kg gasoline at a depth of 15 ft. This result indicates that contamination likely extends beyond the property boundary, although contamination concentrations do not appear to exceed acceptable risk levels. Off-site samples were not collected to determine the easterly extent of the contamination. Because groundwater in the vicinity is not used, the LOF was not extended off site.

8.0 LAND AND WATER USE DETERMINATIONS 8.1 Current and Future Land Use Current land use consists of development into the Broadway Recovery Center, a non-residential health clinic for the local population. A default assumption of residential use is considered protective of human health by DEQ. Because the site is located in downtown Portland, the residential standard would be urban residential. The surrounding area is mixed-use and includes commercial and residential. The zoning of the area is CXd or Central Commercial with a Design Overlay Zone. This zoning provides for dense commercial development while allowing a broad range of uses.

8.2 Beneficial Uses of Water The City of Portland (City) provides reliable, high-quality water to the site vicinity. Because water from the City is readily available, groundwater within the LOF (and nearby vicinity) is not used. The Beneficial Use of Water Survey results are provided in Appendix E. The responses indicate local groundwater is not used, no future plans for use were noted, and there are no wells within the boundary of the survey.

The reasonably likely future use of water is anticipated to be the same as current uses. City water is anticipated to be the source of water within the LOF and nearby vicinity. Groundwater is unlikely to be utilized.

9.0 RISK ASSESSMENT 9.1 Human Health Risk Assessment The baseline health risk assessment must take into account the potential for urban residential exposure to soils and vapor intrusion through soil gas. The baseline assessment would include RBCs in soil for volatilization to outdoor air and vapor intrusion into buildings.

A more site-specific risk assessment for the site, taking into account the construction of a non-residential building over the entire site, is the RBC in soil for dermal contact and inhalation for construction and excavation workers.

9.2 Baseline Ecological Risk Assessment Level I is a conservative qualitative determination of whether there is any reason to believe that ecological receptors and/or exposure pathways are present or potentially present at or in the LOF. Due to commercial development in this area and the use of the site as a parking lot until it was demolished in 2010, ecologically important species and habitat, including threatened or endangered plants and animals, are not present. Therefore, potential exposure to ecological receptors is not considered significant.

10.0 CLEANUP STANDARDS AND HOT SPOTS 10.1 Selection of Cleanup Standards The comparison of measured concentrations at the site to the cleanup standards are shown on Table 7. Using the most protective standards, cleanup standards at the site are listed as the RBCss in soil for urban residential contact, RBCsi for urban residential receptors and the RBCsv in soil gas for urban residential vapor intrusion into buildings.

Based on the groundwater use survey, local groundwater is not used and no future plans for use were noted. Groundwater at the site is located at a depth of more than 20 ft. Groundwater below a depth of 15 ft does not pose a risk to excavation workers by direct contact. Analytical results were not compared with a RBC for groundwater. Additionally, the soil RBC for leaching to groundwater was not considered.

10.2 Final Hot Spot Determination The definition of hot spots depends upon the medium that is contaminated. For groundwater, a hot spot exists if contamination results in a significant adverse effect on its beneficial use and if restoration or protection of the beneficial use can occur within a reasonable amount of time. For soil and soil gas, a hot spot exists if the site presents an unacceptable risk, and if the contamination is highly concentrated, highly mobile, or cannot be reliably contained. The calculation of “highly concentrated” hot spot levels for

human exposures is based on a 100-fold multiplier of the acceptable risk levels for carcinogens and a 10- fold multiplier for non-carcinogens.

There is no beneficial use for groundwater at the site. No groundwater hot spots at the site were identified.

The highest concentrations of contaminants detected and RBCs are listed in Table 7. Arsenic, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, dibenzo(a,h)anthracene and indeno(1,2,3- cd)pyrene were all detected at levels 1.2- to 23-fold above the urban residential RBCss prior to excavation. These six chemicals are all carcinogens. After excavation, gasoline was measured at 1,910 mg/kg at sample NPB, which is located at the bottom of the UST excavation at a depth of 21 ft. This sample exceeds the RBCss for urban residential receptors by 1.3-fold and the RBCsi for urban residential receptors by 12-fold but is below the 3-ft applicability of those RBCs. It is below the RBCss for construction workers. No soil hot spots at the site were identified.

Tetrachloroethene was measured in soil gas in boring GRI-5 at a concentration of 1,000 g/m3 prior to excavation which is approximately 5-fold above the RBCsv for urban residential receptors. Based upon confirmation samples collected in the immediate vicinity, the tetrachloroethene was removed. No soil gas hot spots at the site were identified.

11.0 REMOVAL OR REMEDIAL ACTION REPORT 11.1 Work Completed The restaurant building, associated landscaping and parking lot at the site were removed in September 2010. Due to the amount of surficial debris at the site, a geophysical survey was not completed.

Initial work at the site was the removal of the UST from beneath NW Broadway on September 27, 2010. Approximately 236 tons of impacted soil was removed from an approximately 500-ft2 area to a depth of 21 ft.

The soils were removed to a depth of 8 ft in an area of approximately 3,432 ft2 in the northeast corner of the site. The soil removal areas are shown on Figure 13. This deeper area was underlain by a finished concrete floor, and coincided with the smaller contaminated fill area. The contaminated fill was segregated during excavation and disposed of at Waste Management Hillsboro. The disposal tickets are included in Appendix G. While removing the impacted fill, an approximately 650-gallon tank was found among the fill material. The tank was located above the concrete slab and contained a small amount of bunker oil. The tank was removed by Soil Solutions Environmental Services of Portland, Oregon, and their record of removal and proper disposal is included in Appendix H. The excavation was backfilled with clean recycled concrete.

Redevelopment work at the site included the removal of the upper 3 ft of soil across the site, weighing 9,225.64 tons. Except for the area of contaminated fill, this material was removed to four disposal sites in Portland and Scappoose, Oregon. Based upon sampling completed outside of the contaminated fill area, e.g., GRI-13 and GRI-14, this material was determined to be sufficiently free of contamination to be able to be disposed at a standard fill disposal site. The location of the disposal sites and quantity removed to each site is listed in Appendix G. A work pad consisting of 6 in. of clean recycled concrete was place on the site. This work pad remained in place after completion of work to install pilings to support the building

and will provide the slab support. Underground tanks or other debris were not encountered during the installation of the piles.

A total of 4,920.84 tons of 100% recycled concrete was used at the site to provide backfill and work pad material.

11.2 Verification Sampling After initial excavation of the contaminated fill, soil samples were collected on October 19, 2010, from the north, south, and west sidewalls. The bottom of the excavation was a concrete slab. The east wall of the excavation was a brick wall. Sample locations and results are shown on Figure 14. The laboratory results are provided in Appendix D. Chemical analysis of samples obtained from the north and northwest corner sidewall indicate the contaminated fill has been removed. Chemical analysis of samples obtained from the south and southwest sidewall indicate lead and PAHs above the urban residential RBCs. This area was further excavated on October 20 and 21, 2010, prior to being backfilled with crushed concrete. The limits of the excavation were determined by pre-excavation sampling as outlined by samples GRI-12 and GRI-15.

At DEQ’s request, soil gas samples were collected from borings GRI-16 through -18 on November 5, 2010, following removal of the contaminated fill. These three locations are in the northeast portion of the site in the former vicinity of the contaminated fill. The area has been backfilled with crushed concrete and compacted. Test results were analyzed for VOCs; laboratory results are provided in Table 5 and Appendix D. These samples are labeled C-1 through C-3 in the laboratory results. Confirmation analysis indicated the concentrations of VOCs in soil gas are below the urban residential RBC for vapor intrusion into buildings.

11.3 Engineering Controls A 15-mil vapor barrier will be installed beneath the BRC building. The barrier used is a Stego Wrap 15-mil barrier composed of prime, virgin, and polyolefin resins and is designed as a moisture barrier. The seams and openings of the barrier were sealed with Stego tape and mastic as required by the manufacturer, Stego Industries. Based on soil gas results and comparison with applicable RBCs, an engineered vapor barrier is not required at the site. The installed barrier is not intended to be a formal engineering control, but will assist in minimizing the vapor intrusion pathway.

12.0 RESIDUAL RISK 12.1 Residual Risk Assessment The upper 3 ft of soil was removed from the entire site and the site was backfilled with 6 in. of clean fill consisting of crushed concrete. The LUST and immediately adjacent impacted soils were removed from the site. Finally, the area of contaminated fill was excavated to a depth of 8 ft.

After soil removal, elevated areas of arsenic and lead remain at the site. These concentrations are below the site-specific RBC, which is the ingestion pathway for construction and excavation worker receptors. They are non-volatile compounds and will not pose vapor intrusion risk.Based upon soil gas confirmation samples collected in the vicinity of the contaminated fill area, the potential for vapor intrusion was removed.

12.2 Protection of Human Health and the Environment With the excavation and disposal of the LUST and contaminated fill from the site, the contaminants of concern for human and ecological exposure have been removed from the site. We recommend the DEQ issue a No Further Action letter for ECSI file No. 5413.

13.0 REFERENCES GRI, September 2010, Environmental Services Work Plan, Planned Development at 707 W Burnside Street, Portland, Oregon.

Hahn and Associates, Inc. (HAI), November 12, 2009, Phase II Environmental Site Assessment Report, 707 West Burnside Street.

14.0 LIMITATIONS AND SIGNATURES This report has been prepared to assist in evaluating environmental conditions at the above-referenced site. The scope of work was limited to the specific project, location, and activities described herein. In the performance of an assessment of this type, specific information is obtained at specific locations at specific times. This report may be used only by the client and project team within a reasonable time from its issuance. Land-use, on- and off-site conditions, regulatory requirements or other factors may change over time, and additional work may be required with the passage of time.

The conclusions and recommendations presented in this report are based on our interpretation of the information obtained through the assessment procedures described in this report. No other warranty or representation, either expressed or implied, is included or intended in this report.

We appreciate the opportunity to be of service to you on this project. Please contact the undersigned if you have any questions regarding this report or require further assistance.

Submitted for GRI,

George A. Freitag, CEG Teresa A. Nowicki, RG Associate Staff Geologist

This document has been submitted electronically.

Figures

DELORME 3-D TOPOQUADS, OREGON PORTLAND, OREG. (4cb) 2004

North

0 1/2 1 MILE

CENTRAL CITY CONCERN G R I BROADWAY RECOVERY CENTER

VICINITY MAP

APR. 2011 JOB NO. 5144 FIG. 1 A' NOR

B-2?

B-1

B-5 GRI-10 GRI-17 GRI-1 GRI-5 P-14 GRI-15 GRI-3 GRI-18

GRI-2 GRI-4 GRI-14 B-3? GRI-12 B-4? P-12 P-1 GRI-16 2?

GRI-13 P-13 5 P-11 P-2 GRI-6 5

B-6 SG-2 P-3 SG-1 Fuel Station (1950 SFIM) 4? NW BROADWAY P-4 5

5 GRI-7 P-2 GRI-9 6 SG-4 SG-3

GRI-8 HA3 P-5 8

P-1 P-17 GRI-11 P-6 P-10 1? B-7 P-29 Fuel Island

P-7 P-16 P-9 P-8 7 7 3

WEST BURNSIDE STREET West Burnside Street A

LEGEND UST Documentation Site Boundary 1 = Mayor’s Message: 300-gallon UST installed 1913 in sidewalk at Existing Structure NW corner of NW Broadway and W Burnside Street (exact location not known) Former Feature 2 = Mayor’s Message: UST installed 1927? In sidewalk at 25 NW Former Underground Storage Broadway (capacity and exact location not known) Tank (UST) 3 3 = PDOT Files: UST installed 1930 on W Burnside Street, 40 feet west of NW Broadway (capacity not known) Major Sidewalk Patch 4 = Portland Fire Bureau: 2,000-gallon UST replacement 1948 inside Scale 1 inch = 20 feet P-1 Previous Boring building at 17 NW Broadway (exact location not known; may be one of 100 102030 the tanks under 5 below) P-9 2009 Soil Boring 5 = PDOT Files: 4 2,000-gallon USTs installed 1948 beneath sidewalk in NW Broadway (locations from 1950 site plan) P-7 2009 Boring Location FIGURE 2 – Site Map with Groundwater Sample 6 = Portland Fire Bureau: 550-gallon UST installed 1950 (location from 1950 site plan) SG-3 2009 Soil Gas Location Phase II Environmental Site Ass 7 = Portland Fire Bureau: 2 USTs installed 1950 beneath sidewalk in 707 West Burnside Street W Burnside Street (capacity and locations from 1950 site plan) Portland, Oregon

8 = UST identified by geophysical survey conducted in 2004 (could be HAHN AND ASSOCIATES, INC. the same tank as No. 1 or No. 2) Project No. 7695 Novem

North

0 40 80 FT

PROBE LOCATION (SEPTEMBER 24 - OCTOBER 4, 2010) CENTRAL CITY CONCERN G R I BROADWAY RECOVERY CENTER SITE MAP FROM FILE BY HAHN AND ASSOCIATES, INC., DATED NOVEMBER 2009 SITE MAP (WITH 1950 FUELING STATION)

APR. 2011 JOB NO. 5144 FIG. 2

Oregon Department of Environmental Quality RBDM Conceptual Site Model Broadway Recovery Clinic (ECSI 5413)

POTENTIAL RECEPTORS PRIMARY Construction & PRIMARY RELEASE SECONDARY TRANSPORT TERTIARY EXPOSURE Residential (1) Occupational Excavation (2) SOURCES MECHANISMS SOURCES MECHANISMS SOURCES ROUTES Current Future Current Future Current Future

Particles/Volatiles Air (Outdoor) Inhalation ------Surface Soils Ingestion Dermal Contact ------

Particles/Volatiles Air (Outdoor) Inhalation -----+ -----+ Subsurface Soils IngestionIngestion DermalDermal Contact -----+

Air (Outdoor) Inhalation -+---- UST Leaking Volatilization Air (Indoor) Inhalation -++---

Leaching Groundwater Ingestion ------Vol. Inhalation ------

Vol. at the Tap Air (Indoor) Inhalation ------Ingestion ------

Air (Outdoor) Inhalation ------Groundwater Volatilization Air (Indoor) Inhalation ------

Dermal Contact -----+ Volatilization Air (Excavation) Inhalation -----+

Discharge Surface Water (3)

Notes: + This route is a primary source of exposure. - There is no exposure by this route. (1) Specify if urban residential or single-family residential. Include separate columns for these exposure scenarios if necessary. (2) Include separate columns for these two exposure scenarios if necessary. (3) Surface water contamination is not covered in the Table of RBCs and should be discussed with the Department.

GRI No. 5144 Figure 11: Conceptual Site Model - Exposure Oregon Department of Environmental Quality RBDM Conceptual Site Model Broadway Recovery Clinic (ECSI 5413)

Particles/Volatiles Air (Outdoor) Inhalation ------Surface Soils Ingestion Dermal Contact ------

Particles/Volatiles Air (Outdoor) Inhalation -----RBCss Ingestion -----RBCss Subsurface Soils Ingestion DermalDermal Contact -----RBCss

Air (Outdoor) Inhalation -RBCso---- UST Leaking Volatilization Air (Indoor) Inhalation - RBCsi RBCsi - - -

Leaching Groundwater Ingestion ------Vol. Inhalation ------

Vol. at the Tap Air (Indoor) Inhalation ------Ingestion ------

Air (Outdoor) Inhalation ---- Groundwater Volatilization Air (Indoor) Inhalation ------

Dermal Contact -----RBCwe Volatilization Air (Excavation) Inhalation -----RBCwe

Discharge Surface Water (3)

Notes: RBCss, etc. The RBC for this pathway/receptor combination - There is no exposure by this route. (1) Specify if urban residential or single-family residential. Include separate columns for these exposure scenarios if necessary. (2) Include separate columns for these two exposure scenarios if necessary. (3) Surface water contamination is not covered in the Table of RBCs and should be discussed with the Department.

GRI No. 5144 Figure 12: Conceptual Site Model - RBC

Tables

Table 1 Soil Analytical Data Broadway Recover Clinic ‐ ECSI 5413

Contaminated Fill Area Samples collected to determine extent of fill Samples taken during excavation Sample RBCss GRI‐1‐2 GRI‐1‐6 GRI‐2‐1 GRI‐3‐1 GRI‐3‐6 GRI‐4‐4 GRI‐4‐7 GRI‐12 GRI‐13 GRI‐14 GRI‐15 Fill South Fill WestS Fill WestN Fill North Sample Date RBCss Urban Construction 9/24/2010 9/24/2010 9/24/2010 9/24/2010 9/24/2010 9/24/2010 9/24/2010 10/4/2010 10/4/2010 10/4/2010 10/4/2010 10/19/2010 10/19/2010 10/19/2010 10/19/2010 Sample Depth Residential Worker 2 ft 6 ft 1 ft 1 ft 6 ft 4 ft 7 ft 1 ft 1 ft 3 ft 3 ft 4 ft 5 ft 5 ft 4 ft Analyte (mg/kg) Gasoline 1,500 13,000 <4.31 NA <4.62 <4.47 NA <4.44 NA NA NA NA NA NA NA NA NA Diesel 8,300 23,000 <14 NA <72.6 <14.3 <17.3 21 <16.4 <14.2 <14.3 <16.4 ND 39.3 114 < 16.1 < 15.9 Heavy Oil 20,000 40,000 <28.1 NA 530 115 <34.6 165 <32.8 <28.4 <28.7 <32.8 ND 350 1030 < 32.2 51.8 Arsenic 1 13 20.3 NA 2.21 6.46 10.9 3.78 12.5 1.1 NA 10.3 NA 6.57 5.95 11.6 11.3 Barium 31,000 60,000 47.2 NA 110 119 186 103 197 NA NA NA NA NA NA NA NA Cadmium 78 150 <0.542 NA <0.584 <0.577 <0.673 <0.546 <0.656 NA NA NA NA NA NA NA NA Chromium 210 920 13.2 NA 10.4 19.5 23.4 11.5 24.6 NA NA NA NA NA NA NA NA Lead 400 800 21.5 NA 47 38.6 12.9 244 14.9 NA 5.6 612 54 116 922 31.3 234 Selenium NP NP <0.542 NA <0.584 <0.577 <0.673 <0.546 <0.656 NA NA NA NA NA NA NA NA Silver 780 1,500 <0.542 NA <0.584 <0.577 <0.673 <0.546 <0.656 NA NA NA NA NA NA NA NA Mercury 47 93 <0.101 NA <0.0942 <0.106 <0.127 <0.103 <0.0928 NA NA NA NA NA NA NA NA Phenols ‐ ‐ ND NA ND ND ND ND ND NA NA NA NA NA NA NA NA Cyanide 3,100 6,200 0.164 NA 0.0914 0.0749 0.139 0.0821 0.212 NA NA NA NA NA NA NA NA Analyte (g/kg) Acenaphthene 9,100,000 19,000,000 <14.7 <18.7 <78 <15.4 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 < 42.5 < 40.4 < 17 < 17.3 Acenaphthylene NP NP <14.7 <18.7 582 <15.4 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 355 87 < 17 < 17.3 Anthracene 47,000,000 93,000,000 39.7 <18.7 915 <15.4 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 246 108 < 17 < 17.3 Benzo(a)anthracene 340 21,000 337 <18.7 487 136 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 363 179 < 17 < 17.3 Benzo(a)pyrene 34 2,100 309 <18.7 797 175 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 536 317 < 17 < 17.3 Benzo(b)fluoranthene 340 21,000 256 <18.7 409 199 <18.4 <73.6 <17.4 <15 NA 23.8 <15.6 373 206 < 17 < 17.3 Benzo(ghi)perylene NP NP 156 <18.7 2330 134 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 635 494 < 17 < 17.3 Benzo(k)fluoranthene 3,400 210,000 273 <18.7 379 138 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 318 190 < 17 < 17.3 Chrysene 34,000 2,100,000 260 <18.7 548 169 <18.4 <73.6 <17.4 <15 NA 28.6 <15.6 405 221 < 17 < 17.3 Dibenzo(a,h)anthracene 34 2,100 67.7 <18.7 328 47.7 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 166 111 < 17 < 17.3 Fluoranthene 4,600,000 8,900,000 557 <18.7 698 191 <18.4 <73.6 <17.4 <15 NA 42.6 16.2 426 194 < 17 < 17.3 Fluorene 6,300,000 12,000,000 <14.7 <18.7 82.6 <15.4 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 < 42.5 < 40.4 < 17 < 17.3 Indeno(1,2,3‐cd)pyrene 340 21,000 169 <18.7 878 119 <18.4 <73.6 <17.4 <15 NA <17.5 <15.6 427 277 < 17 < 17.3 Naphthalene 25,000 580,000 <14.7 <18.7 109 <15.4 <18.4 <73.6 <17.4 <15 NA 21.4 <15.6 52.6 < 40.4 < 17 < 17.3 Phenanthrene NP NP 67.5 <18.7 594 71.8 <18.4 <73.6 <17.4 <15 NA 32 <15.6 288 120 < 17 < 17.3 Pyrene 3,400,000 6,700,000 439 <18.7 1000 156 <18.4 <73.6 <17.4 <15 NA 30.8 <15.6 535 291 < 17 < 17.3

RBCss = Risk Based Concentration for soil ingestion, dermal contact and inhalation (dated September 15, 2009) ND = Not Detected NA = Not Analyzed NP = None Proposed Table 2 Soil Analytical Data Broadway Recover Clinic ‐ ECSI 5413

Area Building Footprint Sample RBCss GRI‐7 GRI‐8‐9 GRI‐8‐18 GRI‐9 Sample Date RBCss Urban Construction 9/24/2010 9/24/2010 9/24/2010 9/24/2010 Sample Depth Residential Worker 14 ft 9 ft 18 ft 6 ft Analyte (mg/kg) Gasoline 1,500 13,000 <14.1 <5.07 106 <12.8 Diesel 8,300 23,000 <18.1 <16.6 37.4* <16.3 Heavy Oil 20,000 40,000 <36.2 <33.3 <35.6 <32.6 Cadmium 78 150 <0.682 NA <0.703 <0.643 Chromium 210 920 23.2 NA 20.8 26.7 Lead 400 800 14.7 NA 14.9 18.2 VOCs (g/kg) ‐‐ND NA ND ND PCBs (g/kg) 600 4,400 NA NA NA ND

RBCss = Risk Based Concentration for soil ingestion, dermal contact and inhalation (Sept. 15, 2009) NA = Not Analyzed ND = Not Detected * = Lab qualified (Q5) for "results in the diesel range organics are primarily due to overlap from a gasoline range product Table 3 Soil Analytical Data Broadway Recover Clinic ‐ ECSI 5413

Area P‐2 (Unquantified Gasoline) Sample RBCss GRI‐6‐11 GRI‐6‐15 Dup (GRI‐6‐11) Sample Date RBCss Urban Construction 9/24/2010 9/24/2010 9/24/2010 Sample Depth Residential Worker 11.5 ft 15 ft 12 ft Analyte (mg/kg) Gasoline 1,500 13,000 <12 <11.6 <13.9 Diesel 8,300 23,000 <17.6 <16.8 <18.5 Heavy Oil 20,000 40,000 <35.2 <33.7 <37.1 Cadmium 78 150 <0.691 NA ND Chromium 210 920 20.8 NA 23.6 Lead 400 800 19.4 NA 19 VOCs (g/kg) ‐‐ND NA ND

RBCss = Risk Based Concentration for soil ingestion, dermal contact and inhalation (Sept. 15, 2009) NA = Not Analyzed ND = Not Detected Table 4 Groundwater Analytical Data Broadway Recover Clinic ‐ ECSI 5413

Sample RBCwe B‐5B‐7 GRI‐5 GRI‐9 GRI‐10 GRI‐11 Sample Date Excavation July 2005 July 2005 10/4/2010 10/4/2010 10/4/2010 10/4/2010 Analyte (mg/l) Worker Diesel >S NR NR NA 0.185* NA NA Heavy Oil >S NR NR NA <0.476 NA NA Cadmium 57 NR NR NA <0.002 NA NA Chromium 190 NR NR NA 0.114 NA NA Lead >S NR NR NA 0.0892 NA NA Analyte (g/l) Gasoline 13,000 NR NR NA <80 NA NA Acetone NP NR NR <25 <25 52.1 <25 cis‐1,2‐Dichloroethene 120,000 2.9 3.4 1.87 3.14 <1 4.97 Trichloroethene 160 12 13 5.71 8.37 <1 14.5 sec‐Butylbenzene NP NR NR <1 <1 8.47 <1 n‐Propylbenzene 7,000 NR NR <5 <5 1.38 <5 PCBs 1,900 NR NR NA ND NA NA PAHs ‐ NR NR NA ND NA NA

RBCwe = Risk Based Concentration for groundwater in excavation (dated September 15, 2009) B‐5 and B‐7 were completed by others >S = Above solubility limit NP = None Proposed * = lab qualified (Q13) for "Detected hydrocarbons do not have pattern and range consistent with typical petroleum products and may be due to biogenic interference." NR = Not Reported NA = Not Analyzed ND = Not Detected Table 5 Soil Gas Analytical Data Broadway Recover Clinic ‐ ECSI 5413

Sample SG‐1SG‐2SG‐3SG‐4 GRI‐5 GRI‐10 GRI‐11 GRI‐16 GRI‐17 GRI‐18 Sample Date RBCsv Urban Oct. 2009 Oct. 2009 Oct. 2009 Oct. 2009 10/4/2010 10/4/2010 10/4/2010 11/5/2010 11/5/2010 11/5/2010 Sample Depth Residential 1 ft 1 ft 1 ft 1 ft 5 ft 5 ft 5 ft 5 ft 5 ft 5 ft Analyte (g/m3) (C‐1) (C‐2) (C‐3) Acetone NP 96 97 36 51 <24 43 29 32 16 13 Benzene 170 <4.8 11 <4.8 <4.8 <9.6 <9.6 <9.6 8.8 <2.1 3.6 2‐Butanone (MEK) NP 8.5 J <5.9 <5.9 <5.9 <29 <30 <29 2.9 3.6 <2 Carbon disulfide NP ND ND ND ND <31 <31 40 3.9 <2.1 <2.1 Chloromethane 19,000 10 <4.1 <4.1 <4.1 <8.3 <8.3 <8.3 <5.5 <5.5 <5.6 Cyclohexane NP ND ND ND ND NR NR NR 14 <2.3 <2.3 Dichlorodifluoromethane NP 28 <7.4 <7.4 <7.4 <15 <15 <15 11 4.2 <3.3 Ethanol NP ND ND ND ND NR NR NR 19 10 20 Ethyl Benzene 530 <4.3 <4.3 <4.3 <4.3 <8.7 <8.7 <8.7 9.1 16 <2.9 4‐Ethyltoluene NP ND ND ND ND <9.8 <9.8 30 7.3 3.6 <3.3 Heptane NP ND ND ND ND NR NR NR 13 6.8 <2.8 Hexane NP ND ND ND ND NR NR NR 18 2.4 3.6 Methylene Chloride NP 28 25 23 24 <6.9 <7 <6.9 <2.3 <2.3 <2.3 Tetrachloroethene 220 ND ND ND ND 1000 <14 <14 <4.5 <4.5 <4.6 Toluene 1,000,000 6.7 J11 J 6.9 J 7.8 J <7.5 210 19 64 480 8.4 Trichlorofluoromethane 6,300,000 <5.6 12 95 <5.6 120 49 38 640 81 <3.8 1,2,4‐Trimethylbenzene 1,500 <6.4 <6.4 <6.4 <6.4 <37 <37 16 7.7 <3.3 <3.3 m,p‐Xylene 21,000 <17 <17 18 30 42 4.2 <8.7 <8.7 <8.7 <4.3 o‐Xylene 21,000 <8.7 <8.7 23 10 11 <2.9 Other VOCs ‐ ND ND ND ND ND ND ND ND ND ND Helium % 5* 0.23 0.23 0.23 0.23 <0.034 16 6.5 <0.068 0.3 <0.068

RBCsv = Risk Based Concentration for vapor intrusion into buildings (dated September 15, 2009) SG‐1 through ‐4 were completed by others, sampled in October 2009 Samples GRI‐5, GRI‐10 and GRI‐11 were collected prior to excavation Samples GRI‐16 through GRI‐18 (noted as C‐1 through C‐3 in laboratory reports) were collected after excavation and backfilling J = Estimated value, analyte detected at level less than the reporting limit and above the method detection limit NP = None Proposed ND = Not Detected NR = Not Reported 5* = Helium concentrations above 5% indicate breakthrough of atmospheric gas down the borehole. Table 6 Duplicate Summary Broadway Recovery Center ‐ ECSI 5413

Soil Units GRI‐6‐11 Duplicate MRL RPD Gasoline mg/kg <12 <13.9 13 NC Diesel mg/kg <17.6 <18.5 18 NC Heavy Oil mg/kg <35.2 <37.1 36 NC Cadmium mg/kg <0.691 <0.713 0.7 NC Chromium mg/kg 20.8 23.6 1.42 12.61% Lead mg/kg 19.4 19 0.71 2.08% VOCs ug/kg ND ND ‐‐ NC Groundwater Units GRI‐11 Duplicate RPD cis‐1,2‐Dichloroethene ug/l 4.97 5.39 1 8.11% Trichloroethene ug/l 14.5 14.6 1 0.69%

RPD = Relative Percent Difference NC = Not calculated ND = Not detected GRI‐6 was collected at a depth of 11.5 ft, the associated duplicate was collected at a depth of 12 ft. Table 7 Cleanup Standards Broadway Recover Clinic ‐ ECSI 5413

Soil Gas Pre‐Excavation Post‐Excavation Highest Highest RBCsv Urban Location Location Analyte (ug/m3) Value Value Residential Acetone 97 SG‐2 43 GRI‐10 NP Benzene 11 SG‐2 8.8 GRI‐16 170 2‐Butanone (MEK) 8.5 JSG‐1 3.6 GRI‐17 NP Carbon disulfide 40 GRI‐11 40 GRI‐11 NP Chloromethane 10 SG‐1 <8.3 GRI‐10 19,000 Cyclohexane ND SG‐1 to ‐4 14 GRI‐16 NP Dichlorodifluoromethane 28 SG‐1 11 GRI‐16 NP Ethanol ND SG‐1 to ‐4 20 GRI‐18 NP Ethyl Benzene <8.7 GRI‐5 16 GRI‐17 530 4‐Ethyltoluene 30 GRI‐11 30 GRI‐11 NP Heptane ND SG‐1 to ‐4 13 GRI‐16 NP Hexane ND SG‐1 to ‐4 18 GRI‐16 NP Methylene Chloride 28 SG‐1 <7 GRI‐10 NP Tetrachloroethene 1,000 GRI‐5 <14 GRI‐10 220 Toluene 210 GRI‐10 480 GRI‐17 1,000,000 Trichlorofluoromethane 120 GRI‐5 640 GRI‐16 6,300,000 1,2,4‐Trimethylbenzene 16 GRI‐11 16 GRI‐11 1,500 m,p‐Xylene 18 GRI‐11 42 GRI‐17 21,000 o‐Xylene 23 GRI‐11 23 GRI‐11 21,000

Soil Pre‐Excavation Post‐Excavation Risk Based Concentrations RBCss Analyte (mg/kg) Highest Highest RBCss Urban RBCsi Urban Location Location Construction Value Value Residential Residential Worker Gasoline 12,200 P‐5 (9 ft) 1,910 NPB 1,500 13,000 160 Diesel 37.4* GRI‐8‐18 37.4* GRI‐8‐18 8,300 23,000 >100,000 Heavy Oil 530 GRI‐2‐1 <33.3 GRI‐8‐9 20,000 40,000 >100,000 Arsenic 20.3 GRI‐1‐2 10.3 GRI‐14 (3 ft) 1 13 NV Barium 197 GRI‐4‐7 ‐‐31,000 60,000 NV Cadmium <0.542 GRI‐1‐2 <0.643 GRI‐9 (6 ft) 78 150 NV Chromium 26.7 GRI‐9 26.7 GRI‐9 (6 ft) 210 920 NV Lead 612 GRI‐14 612 GRI‐14 (3 ft) 400 800 NV Selenium <0.542 GRI‐1‐2 ‐‐ NP NP NP Silver <0.542 GRI‐1‐2 ‐‐ 780 1,500 NV Mercury <0.0928 GRI‐4‐7 ‐‐ 47 47 NV Phenols ND GRI‐1 to ‐4 ‐‐ ‐ ‐ ‐ Cyanide 0.212 GRI‐4‐7 ‐‐3,100 6,200 NV Table 7 Cleanup Standards Broadway Recover Clinic ‐ ECSI 5413

Soil Pre‐Excavation Post‐Excavation Risk Based Concentrations RBCss Analyte (ug/kg) Highest Highest RBCss Urban RBCsi Urban Location Location Construction Value Value Residential Residential Worker sec‐Butylbenzene <266 GRI‐8‐18 702 NPB NP NP NP Ethylbenzene <266 GRI‐8‐18 7,820 Pit Center 110,000 1,600,000 2,200 Isopropylbenzene <533 GRI‐8‐18 2,410 NPB 7,000,000 24,000,000 >100,000,000 p‐Isopropyltoluene <533 GRI‐8‐18 575 NPB NP NP NP n‐Propylbenzene <266 GRI‐8‐18 2,770 NPB NP NP NP 1,2,4‐Trimethylbenzene <266 GRI‐8‐18 4,590 Pit Center 220,000 2,000,000 82,000 1,3,5‐Trimethylbenzene <266 GRI‐8‐18 2,670 NPB 190,000 1,500,000 12,000 m,p‐Xylene <533 GRI‐8‐18 5,650 Pit Center 2,900,000 19,000,000 100,000 PCBs ND GRI‐9 ND GRI‐9 (6 ft) 600 4,400 NV Acenaphthene ND GRI‐2‐1 <15.6 GRI‐15 (3 ft) 9,400,000 19,000,000 >100,000,000 Acenaphthylene 582 GRI‐2‐1 <15.6 GRI‐15 (3 ft) NP NP NP Anthracene 915 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 47,000,000 93,000,000 >100,000,000 Benzo(a)anthracene 487 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 340 21,000 NV Benzo(a)pyrene 797 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 34 2,100 NV Benzo(b)fluoranthene 409 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 340 21,000 NV Benzo(ghi)perylene 2,330 GRI‐2‐1 <15.6 GRI‐15 (3 ft) NP NP NP Benzo(k)fluoranthene 379 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 3,400 210,000 NV Chrysene 548 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 34,000 2,100,000 NV Dibenzo(a,h)anthracene 328 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 34 2,100 NV Fluoranthene 398 GRI‐2‐1 16.2 GRI‐15 (3 ft) 4,600,000 8,900,000 NV Fluorene 82.6 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 6,300,000 12,000,000 >100,000,000 Indeno(1,2,3‐cd)pyrene 878 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 340 21,000 NV Naphthalene 109 GRI‐2‐1 321 NPB 25,000 580,000 18,000 Phenanthrene 597 GRI‐2‐1 <15.6 GRI‐15 (3 ft) NP NP NP Pyrene 1,000 GRI‐2‐1 <15.6 GRI‐15 (3 ft) 3,400,000 6,700,000 NV

ND = Not Detected NP = None proposed NV = Nonvolatile for purposes of RBC calculations SG‐1 through ‐4 were completed by others in October 2009 P‐5 was completed by others in October 2009 NPB and Pit Center were collected at a depth of 21 ft by Soil Solutions, Inc. in September 2010 and are located at the removed UST in the southeast corner of the site. * = Lab qualified (Q5) for "results in the diesel range organics are primarily due to overlap from a gasoline range product Indicates value above RBC

APPENDIX A Work Plan

September 22, 2010 5144 WORK PLAN

Oregon Department of Environmental Quality 400 E. Scenic Drive, Suite 307 The Dalles, OR 97058

Attention: Bob Schwarz

SUBJECT: Environmental Services Work Plan Planned Development at 707 W Burnside Street Portland, Oregon

SITE AND PROJECT DESCRIPTION The site is located on the northwest corner of W Burnside Street and NW Broadway in downtown Portland. The northern portion of the site was used as a commercial parking lot and the southern portion was occupied by a vacant Burger King restaurant building. The vacant building and parking lot were recently removed from the site. The site was previously an auto repair shop and fueling station with underground storage tanks (USTs).

PREVIOUS WORK Previous environmental work on the site was completed by Evergreen Environmental Management, LLC; PBS Engineering and Environmental; and Hahn and Associates, Inc. (HAI). GRI received a copy of the November 12, 2009, report by HAI entitled, “Phase II Environmental Site Assessment Report, 707 West Burnside Street.” The report notes four areas of concern:

1) A UST remains below the NW Broadway sidewalk. This UST appears to have leaked and impacted the immediately surrounding soil and groundwater.

2) An area of contaminated fill is located on the northern portion of the property. The log of a boring drilled in this area indicates the fill is approximately 5 to 6 ft thick.

3) Gasoline-contaminated soil is present in the area of a former UST that was located below the W Burnside Street sidewalk.

4) Chlorinated solvents are present in groundwater along the western edge of the property.

FIELD INVESTIGATION PLAN The Oregon Utility Notification Center will be contacted prior to performing any field work.

UST Removal A subcontractor licensed by the Oregon Department of Environmental Quality (DEQ) for UST removal will remove the tank located below the NW Broadway sidewalk. This subcontractor, Soil Solutions Environmental Services, Inc., will expose the tank, check gasoline concentrations, inert the tank as required, and remove the tank, associated piping if present, and associated contaminated soil up to 20 cy.

They will collect samples per DEQ UST program requirements for analysis by TestAmerica, Inc. and prepare a tank closure report. The subcontractor will provide a DEQ-licensed UST soil supervisor for project oversight.

Push Probes Eleven explorations will be completed using direct push technology to a proposed depth of 10 to 25 ft. The proposed locations of the probes are shown on the Site Map, Figure 1. The probes are grouped as described below. A tabulation of probe number, location, and analytes is provided at the back of the work plan. Sample collection details for soil, groundwater, and soil gas collection are outlined in the Sample Collection section of this work plan.

Contaminated Fill. Four probes, GRI-1 through GRI-4, will be advanced to a depth of about 10 ft north, south, east, and west of HAI’s boring P-14, which was located in the area of contaminated fill on the northern portion of the property. The contamination appears to be associated with coal gas waste, which is generally characterized by small, black, vitreous, angular, coarse sand- to fine gravel-size material. Soil samples will be collected from the upper 5 ft and from a depth of approximately 7 ft. The upper soil samples will be collected in areas that appear to be contaminated and will be submitted to an analytical laboratory for analysis of polycyclic aromatic hydrocarbons (PAHs) by EPA Method 8270-SIM, phenols by EPA Method 8270-C, gasoline by method NW TPH-Gx, diesel by method NW TPH-Dx, total RCRA 8 metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium and silver) by EPA Method 6000 series, and total cyanide by EPA Method 9040/9045. If contaminants are detected in the upper sample, the lower sample will be analyzed to evaluate the vertical extent of the fill. The lower sample will be collected below the coal gas waste fill material. If field screening of the upper material indicates the fill is contaminated, additional probes will be completed to evaluate the horizontal extent of the fill.

A fifth probe, GRI-5, will be advanced to the depth of groundwater near HAI’s boring P-14, and a soil gas sample will be collected at a depth of 5 ft and analyzed by EPA Method TO-15. A groundwater sample will be collected from probe GRI-5 and analyzed for VOCs by EPA Method 8260.

Former Gasoline Tank. An underground storage tank was removed in the vicinity of HAI’s boring P-2. Gasoline was detected in the native soil below the fill at a depth of 11 ft. The gasoline concentration was not quantified. One probe, GRI-6, will be advanced to a depth of 20 ft in the vicinity of boring P-2, and a sample will be obtained at a depth of about 11 ft and analyzed for gasoline using method NW TPH-Gx and volatile organic compounds (VOCs) using EPA Method 8260. Additional samples will be collected in the fill and at a depth of about 17 ft. These samples will be placed on hold pending results of the submitted sample.

Building Footprint. Soil samples were not collected from beneath the former building. Three probes, GRI- 7 through GRI-9, will be advanced to a depth of 20 ft in the footprint of the former building. Two probes, GRI-7 and GRI-8, will be located at either end of the former fuel station where plans show the piping contains a bend, as these are likely leak areas for fuel stations. Probe GRI-9 will be located in a former hoist area. The soil samples will be field screened for the presence of contaminants. One sample from each probe will be submitted to the analytical laboratory. The soil sample selected for analysis will be the worst-case sample based upon PID measurements and sheen analysis. If field screening does not disclose obvious contamination, the sample from the 5-ft depth will be submitted. Approximately 4 ft of material will be removed across the site during construction activities. For this reason, the 5-ft sample depth was chosen to represent the soil closest to the building.

2 All soil samples will be analyzed for gasoline by method NW TPH-Gx, diesel by method NW TPH-Dx, VOCs by EPA Method 8260, and total cadmium, chromium and lead by EPA Method 6000 series. The sample from the hoist area will be analyzed for PCBs. If diesel or heavy oil are detected, additional analysis will consist of PAHs by EPA Method 8270-SIM. A groundwater sample will be collected from probe GRI-9 and analyzed for VOCs by EPA Method 8260.

HVOC Detections. Trichloroethene and cis-1,2-dichloroethene were detected in two HAI borings located near the western edge of the site. Two probes, GRI-10 and GRI-11, will be located in this area. These probes will be advanced to the depth of groundwater, and a soil gas sample will be collected at a depth of 5 ft and analyzed by EPA Method TO-15. A groundwater sample will be collected and analyzed for VOCs by EPA Method 8260.

NON-FIELD ACTIVITIES GRI will complete a Beneficial Water Use determination for the site. This report will follow DEQ’s Guidance for Conducting Beneficial Water Use Determinations at Environmental Cleanup Sites. Currently, we anticipate a questionnaire will be mailed to property owners in a two-block radius of the site. This radius may change depending on concentrations and groundwater table information gathered during site activities.

REPORTING GRI will prepare a written final report that documents all activities associated with the collection, transportation, and chemical analysis of samples. The report format will follow DEQ independent cleanup outlines. Probe logs and chemical reports will be included as appendices. Groundwater levels measured in probes GRI-5 and GRI-9 through GRI-11 will be included in the report and will be used to interpret groundwater flow direction and velocity. Any deviations from this work plan will be noted in the report.

SAMPLE COLLECTION The following field procedures are discussed below: . Sample collection . Field screening procedures . Sample container, labeling, and shipping requirements . Decontamination procedures . Waste disposal . Field quality assurance/quality control (QA/QC) . Laboratory quality assurance/quality control (QA/QC)

Sample Collection The push probe rig will obtain soil cores using a continuous soil sampler. The sampler will be advanced the desired interval, removed from the hole, and the sample core removed. The core is contained in a clear plastic sleeve inside the sampler barrel. The soil cores are opened in the field to allow visual classification, field screening, and sampling. Extra soil from the cores will be stored in drums pending disposal.

Soil samples will be collected using disposal gloves into laboratory-supplied clean jars and containers. EPA Method 5035 trap and purge will be used to collect soil samples for VOC analysis. Groundwater samples will be retrieved using a peristaltic pump with disposable tubing. The groundwater will be allowed to flow into a bucket or other container until it is clear and then will be collected into laboratory-supplied clean

3 jars and containers. VOA vials will be collected so that there is no air space in the sample jars. The purge water will be stored in drums pending disposal.

Soil gas samples will be collected in laboratory-supplied clean summa canisters. The sample tip will be placed at a depth of 5 ft, and the hole will be covered to prevent surface air from infiltrating the collected sample. A hood will be placed over the sampler, and helium will be introduced to the hood. Helium will be used as an indicator gas to demonstrate that short circuiting did not occur.

The groundwater sample locations will be completed first. The holes will remain open during the remainder of the day’s field activities. Prior to leaving the site, the groundwater level will be measured using an electronic water level meter, and the hole will be filled with bentonite pellets and hydrated with water. After completing each soil sample location probe, the hole will be filled with bentonite pellets and hydrated with water. Probe locations in the sidewalk will be patched with concrete patch to restore the ground surface.

Field Screening Procedures Headspace Measurements. Headspace vapor measurements will be made on soil samples using a MiniRAE 2000 photoionization detector (PID) to assess the possible presence of VOCs. The PID is not compound or concentration specific, but provides a qualitative indication of the presence of VOCs. Soil samples will be placed in jars (filled less than half full), covered, and allowed to warm to ambient temperature. PID measurements will be made within 30 minutes of soil collection and recorded on the field logs. The PID will be calibrated using a manufacturer-supplied standard gas.

Sheen Tests. Sheen tests will be conducted on soil samples to assess whether petroleum hydrocarbons are present. A small portion of the soil sample will be placed in a wide-mouth jar partially filled with water. A sheen produced on the water surface in the jar would indicate the presence of petroleum hydrocarbons.

Sample Containers, Labeling, and Shipping Clean sample containers will be provided by TestAmerica, Inc of Beaverton, Oregon, the analytical laboratory for the project. Sample containers will be fully filled leaving no headspace. A sample label that includes a unique sample number, date of collection, project number, and sampler’s initials will be affixed to each soil or water sample. All sample containers will be packed in an ice chest cooled with frozen ice packs for field storage and transported to GRI’s office for refrigerated storage or to the analytical laboratory. Chain-of-custody documentation will be maintained at all times.

Decontamination Procedures To prevent cross-contaminations between sampling events, clean dedicated sampling equipment will be used when possible for each sampling event and discarded after use. Cleaning of non-disposable items will consist of washing in a detergent solution, rinsing with tap water, and followed with a purified water rinse. Push probe equipment will be cleaned with a high-pressure wash after each location. All decontamination water will be stored in drums pending disposal.

Waste Disposal During field activities, extra soil from the probes will be placed in drums. Wash water used for equipment decontamination will be kept in a separate drum. The drums will be stored at GRI offices pending laboratory results before removal by ThermoFluids of Portland, Oregon. One sample from each drum will be collected and analyzed by TestAmerica for petroleum by method NW TPH-HCID and VOCs by EPA

4 Method 8260. ThermoFluids is a hazardous waste management company that will dispose of the material based on the laboratory results of the material.

Field Quality Assurance/Quality Control QA/QC will be practiced throughout field activities. One field blank and trip blank for water VOCs will be collected each day. One additional groundwater sample will be collected and analyzed as a duplicate. One collocated soil sample will be collected and analyzed as a duplicate. Helium gas will be used as a tracer for the soil gas sampling to evaluate whether surface air was introduced during sample collection.

Disposable equipment including gloves and core sleeves will be used when possible. Non-disposable items will be decontaminated before and after each sampling event to minimize possible cross contamination. All laboratory containers will be marked with identifying information to prevent sample mix-ups. The chain-of-custody documentation will be maintained at all times. Soil core, sample intervals, descriptions, and field screening results will be shown on exploration logs.

Laboratory Quality Assurance/Quality Control TestAmerica, Inc. of Beaverton, Oregon, the analytical laboratory for this project, is approved through the Oregon Environmental Laboratory Accreditation Program. Laboratory results will include matrix spike, lab blank, and laboratory control spike results. These results will be used to qualify laboratory results if appropriate. The analytes and TestAmerica’s reporting limits for all the proposed methods are provided at the end of this work plan.

REQUEST FOR REVIEW We request that DEQ review this Work Plan and provide concurrence or comments. DEQ comments will be incorporated during field activities.

Please contact Teresa Nowicki ([email protected]) if you have any questions.

Submitted for GRI,

George A. Freitag, CEG Teresa A. Nowicki, RG Associate Staff Geologist

5 NOR

B-2?

B-1

GRI-10

B-5 GRI-1

GRI-5 P-14 GRI-2 GRI-3 GRI-4 B-3? B-4? P-12 P-1 2?

P-13 5

P-11 P-2 5 GRI-6 B-6 SG-2 P-3 SG-1 Fuel Station (1950 SFIM) 4? NW BROADWAY P-4 5

5 P-2 GRI-7

6 SG-4 SG-3 GRI-9

HA3 P-5 GRI-8 8

P-1 P-17

GRI-11 P-6 P-10 1? B-7 P-29 Fuel Island

P-7 P-16 P-9 P-8 7 7 3

WEST BURNSIDE STREET West Burnside Street

8 = UST identified by geophysical survey conducted in 2004 (could be HAHN AND ASSOCIATES, INC. the same tank as No. 1 or No. 2) Project No. 7695 Novem

North

0 40 80 FT

PROPOSED PROBE LOCATION CENTRAL CITY CONCERN G R I SITE MAP FROM FILE BY HAHN AND ASSOCIATES, INC., DATED NOVEMBER 2009 BROADWAY CLINIC SITE MAP

SEPT. 2010 JOB NO. 5144 FIG. 1 SAMPLE SUMMARY Planned Development at 707 W Burnside Street Portland, Oregon

Boring Location Sample Media Sample Depths Sample Number Analysis Methods Notes TPH, PAH, phenols, total RCRA 8 Dx, Gx, 8270‐SIM, 6000 GRI‐1 Contaminated Fill soil 5, 7 ft 2 metals, total cyanide series, 9040/9045 TPH, PAH, phenols, total RCRA 8 Dx, Gx, 8270‐SIM, 6000 GRI‐2 Contaminated Fill soil 5, 7 ft 2 metals, total cyanide series, 9040/9045 TPH, PAH, phenols, total RCRA 8 Dx, Gx, 8270‐SIM, 6000 GRI‐3 Contaminated Fill soil 5, 7 ft 2 metals, total cyanide series, 9040/9045 TPH, PAH, phenols, total RCRA 8 Dx, Gx, 8270‐SIM, 6000 GRI‐4 Contaminated Fill soil 5, 7 ft 2 metals, total cyanide series, 9040/9045 Leave hole open during day, GRI‐5 Contaminated Fill air, groundwater 5 ft, 20+ 2 VOCs TO‐15, 8260 measure depth to groundwater at end of day GRI‐6P‐2 soil 5, 11, 20 ft 3 TPH, cd, cr, pb, VOCs Dx, Gx, 6000 series, 8260 GRI‐7 former building soil worst case 1 TPH, cd, cr, pb, VOCs Dx, Gx, 6000 series, 8260 GRI‐8 former building soil worst case 1 TPH, cd, cr, pb, VOCs Dx, Gx, 6000 series, 8260 Leave hole open during day, Dx, Gx, 6000 series, 8260, GRI‐9 former building (hoist) soil, groundwater worst case, 20+ 2 TPH, cd, cr, pb, VOCs, PCBs measure depth to groundwater PCBs at end of day Leave hole open during day, GRI‐10 west side of site (B‐5) air, groundwater 5 ft, 20+ 2 VOCs TO‐15, 8260 measure depth to groundwater at end of day Leave hole open during day, GRI‐11 west side of site (B‐7) air, groundwater 5 ft, 20+ 2 VOCs TO‐15, 8260 measure depth to groundwater at end of day

5144 SAMPLE SUMMARY.XLS Analytical Method Details - TestAmerica Portland

Surr. DUP Matrix Spike Blank Spike Method Analyte MDL MRL Units %R RPD %R RPD %R RPD

Gasoline Hydrocarbons per NW TPH-Gx Method in Soil NW TPH-Gx Gasoline Range Hydrocarbons 0.540 4.00 mg/kg dry w - 40 65-130 35 70-130 40 NW TPH-Gx a,a,a-TFT Surrogate 50-150 - - - - - NW TPH-Gx 4-BFB Surrogate 50-150 - - - - - NW TPH-Gx 4-BFB (FID) Surrogate 50-150 - - - - - NW TPH-Gx a,a,a-TFT (FID) Surrogate 50-150 - - - - -

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method in Soil NWTPH-Dx Diesel Range Organics 1.20 12.5 mg/kg dry w - 40 75-125 25 50-150 - NWTPH-Dx Residual Range/Heavy Oil Organics 2.70 25.0 mg/kg dry w - 40 60-120 25 50-150 - NWTPH-Dx 1-Chlorooctadecane Surrogate 50-150 - - - 60-120 -

Total Metals per EPA 6000/7000 Series Methods in Soil EPA 6020 Arsenic 0.00700 0.500 mg/kg dry w - 40 75-125 40 80-120 40 EPA 6020 Barium 0.00450 0.500 mg/kg dry w - 40 75-125 40 80-120 40 EPA 6020 Cadmium 0.00110 0.500 mg/kg dry w - 40 75-125 40 80-120 20 EPA 6020 Chromium 0.0166 1.00 mg/kg dry w - 40 75-125 40 80-120 40 EPA 6020 Lead 0.00870 0.500 mg/kg dry w - 40 75-125 40 80-120 20 EPA 6020 Selenium 0.00200 0.500 mg/kg dry w - 40 75-125 40 80-120 20 EPA 6020 Silver 0.00440 0.500 mg/kg dry w - 40 75-125 40 80-120 20 EPA 6020 Germanium (ISTD) mg/kg dry w ------EPA 6020 Rhodium (ISTD) mg/kg dry w ------EPA 6020 Terbium (ISTD) mg/kg dry w ------

Total Mercury per EPA Method 7471A in Soil EPA 7471A Mercury 0.00510 0.100 mg/kg dry w - 40 75-125 40 80-120 20

Volatile Organic Compounds per EPA Method 8260B in Soil EPA 8260B Acetone 144 2500 ug/kg dry w t - 25 60-143 25 65-167 25 EPA 8260B Benzene 4.44 20.0 ug/kg dry w t - 25 68.5-150 25 81.9-125 25 EPA 8260B Bromobenzene 12.2 100 ug/kg dry w t - 25 70-130 25 80-120 25 EPA 8260B Bromochloromethane 16.4 100 ug/kg dry w t - 25 80-129 25 80-120 25 EPA 8260B Bromodichloromethane 10.2 100 ug/kg dry w t - 25 80-135 25 80-141 25 EPA 8260B Bromoform 15.8 100 ug/kg dry w t - 25 70-130 25 75-151 25 EPA 8260B Bromomethane 5.09 500 ug/kg dry w t - 25 70-130 25 65-130 25 EPA 8260B 2-Butanone (MEK) 148 1000 ug/kg dry w t - 25 72-143 25 68-127 25 EPA 8260B n-Butylbenzene 11.3 500 ug/kg dry w t - 25 71-140 25 90-146 25 EPA 8260B sec-Butylbenzene 7.45 100 ug/kg dry w t - 25 70-134 25 80-133 25 EPA 8260B tert-Butylbenzene 15.2 100 ug/kg dry w t - 25 80-133 25 80-130 25 EPA 8260B Carbon disulfide 7.19 1000 ug/kg dry w t - 25 70-130 25 67-140 25 EPA 8260B Carbon tetrachloride 7.64 100 ug/kg dry w t - 25 72-126 25 71-128 25 EPA 8260B Chlorobenzene 8.09 100 ug/kg dry w t - 25 65.9-150 25 79.2-125 25 EPA 8260B Chloroethane 10.7 100 ug/kg dry w t - 25 70-130 25 75-125 25 EPA 8260B Chloroform 7.26 100 ug/kg dry w t - 25 80-124 25 80-121 25 EPA 8260B Chloromethane 6.72 500 ug/kg dry w t - 25 40-150 25 42-150 25 EPA 8260B 2-Chlorotoluene 11.0 100 ug/kg dry w t - 25 79-124 25 80-120 25 EPA 8260B 4-Chlorotoluene 10.4 100 ug/kg dry w t - 25 70-130 25 80-126 25

Page 5 of 11 Analytical Method Details - TestAmerica Portland

Surr. DUP Matrix Spike Blank Spike Method Analyte MDL MRL Units %R RPD %R RPD %R RPD EPA 8260B 1,2-Dibromo-3-chloropropane 26.0 500 ug/kg dry w t - 25 59-143 25 61-128 25 EPA 8260B Dibromochloromethane 11.2 100 ug/kg dry w t - 25 80-129 25 75-125 25 EPA 8260B 1,2-Dibromoethane 11.6 100 ug/kg dry w t - 25 80-128 25 80-124 25 EPA 8260B Dibromomethane 14.7 100 ug/kg dry w t - 25 75-125 25 80-120 25 EPA 8260B 1,2-Dichlorobenzene 14.4 100 ug/kg dry w t - 25 80-120 25 80-120 25 EPA 8260B 1,3-Dichlorobenzene 5.86 100 ug/kg dry w t - 25 80-127 25 80-126 25 EPA 8260B 1,4-Dichlorobenzene 14.9 100 ug/kg dry w t - 25 80-120 25 77-121 25 EPA 8260B Dichlorodifluoromethane 11.8 500 ug/kg dry w t - 25 63-134 25 75-120 25 EPA 8260B 1,1-Dichloroethane 11.9 100 ug/kg dry w t - 25 80-123 25 80-120 25 EPA 8260B 1,2-Dichloroethane 11.2 100 ug/kg dry w t - 25 75-120 25 80-120 25 EPA 8260B 1,1-Dichloroethene 11.9 100 ug/kg dry w t - 25 55.8-150 25 66.1-125 25 EPA 8260B cis-1,2-Dichloroethene 12.6 100 ug/kg dry w t - 25 75-117 25 75-125 25 EPA 8260B trans-1,2-Dichloroethene 8.97 100 ug/kg dry w t - 25 70-130 25 75-125 25 EPA 8260B 1,2-Dichloropropane 7.45 100 ug/kg dry w t - 25 80-128 25 82-125 25 EPA 8260B 1,3-Dichloropropane 17.4 100 ug/kg dry w t - 25 76-130 25 75-129 25 EPA 8260B 2,2-Dichloropropane 8.09 100 ug/kg dry w t - 25 70-130 25 72-132 25 EPA 8260B 1,1-Dichloropropene 10.9 100 ug/kg dry w t - 25 79-124 25 79-126 25 EPA 8260B cis-1,3-Dichloropropene 4.95 100 ug/kg dry w t - 25 80-130 25 80-126 25 EPA 8260B trans-1,3-Dichloropropene 8.29 100 ug/kg dry w t - 25 71-144 25 67-146 25 EPA 8260B Ethylbenzene 9.40 100 ug/kg dry w t - 25 80-124 25 82-123 25 EPA 8260B Hexachlorobutadiene 69.4 400 ug/kg dry w t - 25 46-157 25 80-152 25 EPA 8260B 2-Hexanone 57.2 1000 ug/kg dry w t - 25 63-152 25 57-120 25 EPA 8260B Isopropylbenzene 9.55 200 ug/kg dry w t - 25 80-129 25 82-128 25 EPA 8260B p-Isopropyltoluene 9.68 200 ug/kg dry w t - 25 70-138 25 80-120 25 EPA 8260B 4-Methyl-2-pentanone 117 500 ug/kg dry w t - 25 59-151 25 52-120 25 EPA 8260B Methyl tert-butyl ether 11.9 100 ug/kg dry w t - 25 70-130 25 75-125 25 EPA 8260B Methylene chloride 250 500 ug/kg dry w t - 25 70-120 25 75-125 25 EPA 8260B Naphthalene 14.1 200 ug/kg dry w t - 25 70-130 25 80-130 25 EPA 8260B n-Propylbenzene 9.89 100 ug/kg dry w t - 25 70-130 25 80-120 25 EPA 8260B Styrene 8.89 100 ug/kg dry w t - 25 86-122 25 80-123 25 EPA 8260B 1,1,1,2-Tetrachloroethane 9.25 100 ug/kg dry w t - 25 80-129 25 83-128 25 EPA 8260B 1,1,2,2-Tetrachloroethane 21.1 100 ug/kg dry w t - 25 70-130 25 72-135 25 EPA 8260B Tetrachloroethene 16.9 100 ug/kg dry w t - 25 75-137 25 80-124 25 EPA 8260B Toluene 6.29 100 ug/kg dry w t - 25 70.3-150 25 80-125 25 EPA 8260B 1,2,3-Trichlorobenzene 16.9 100 ug/kg dry w t - 25 70-130 25 78-143 25 EPA 8260B 1,2,4-Trichlorobenzene 21.4 100 ug/kg dry w t - 25 71-148 25 83-149 25 EPA 8260B 1,1,1-Trichloroethane 6.13 100 ug/kg dry w t - 25 80-127 25 80-124 25 EPA 8260B 1,1,2-Trichloroethane 18.1 100 ug/kg dry w t - 25 80-130 25 80-125 25 EPA 8260B Trichloroethene 12.0 100 ug/kg dry w t - 25 65.5-150 25 76-125 25 EPA 8260B Trichlorofluoromethane 8.97 100 ug/kg dry w t - 25 70-130 25 56-147 25 EPA 8260B 1,2,3-Trichloropropane 49.2 100 ug/kg dry w t - 25 70-130 25 67-126 25 EPA 8260B 1,2,4-Trimethylbenzene 6.75 100 ug/kg dry w t - 25 70-130 25 81-134 25 EPA 8260B 1,3,5-Trimethylbenzene 9.33 100 ug/kg dry w t - 25 73-141 25 82-136 25 EPA 8260B Vinyl chloride 5.74 100 ug/kg dry w t - 25 70-130 25 76-137 25 EPA 8260B o-Xylene 11.6 100 ug/kg dry w t - 25 70-130 25 80-126 25 EPA 8260B m,p-Xylene 11.4 200 ug/kg dry w t - 25 76-134 25 80-120 25 EPA 8260B Dibromofluoromethane Surrogate 75-125 - - - - - EPA 8260B 1,2-DCA-d4 Surrogate 75-125 - - - - - EPA 8260B Toluene-d8 Surrogate 75-125 - - - - - EPA 8260B 4-BFB Surrogate 75-125 - - - - - EPA 8260B Fluorobenzene ug/kg dry w t ------EPA 8260B Chlorobenzene-d5 ug/kg dry w t ------EPA 8260B 1,4-Dichlorobenzene-d4 ug/kg dry w t ------

Volatile Organic Compounds per EPA Method 8260B in Water EPA 8260B Acetone 7.76 25.0 ug/l - 40 59.9-143 - 56-141 - EPA 8260B Benzene 0.0900 1.00 ug/l - 40 80-124 25 80-120 25

Page 6 of 11 Analytical Method Details - TestAmerica Portland

Surr. DUP Matrix Spike Blank Spike Method Analyte MDL MRL Units %R RPD %R RPD %R RPD EPA 8260B Bromobenzene 0.100 1.00 ug/l - 40 80-121 - 78-120 - EPA 8260B Bromochloromethane 0.180 1.00 ug/l - 40 80-129 - 76-121 - EPA 8260B Bromodichloromethane 0.110 1.00 ug/l - 40 80-135 - 84-127 - EPA 8260B Bromoform 0.100 1.00 ug/l - 40 69.4-151 - 55-134 - EPA 8260B Bromomethane 0.170 5.00 ug/l - 40 31-155 - 38-150 - EPA 8260B 2-Butanone (MEK) 3.50 10.0 ug/l - 40 72.3-143 - 71-136 - EPA 8260B n-Butylbenzene 0.0600 5.00 ug/l - 40 70.8-140 - 76-126 - EPA 8260B sec-Butylbenzene 0.0800 1.00 ug/l - 40 72.5-134 - 64-129 - EPA 8260B tert-Butylbenzene 0.0600 1.00 ug/l - 40 72.3-132 - 71-127 - EPA 8260B Carbon disulfide 0.140 10.0 ug/l - 40 40-167 - 58-120 - EPA 8260B Carbon tetrachloride 0.0600 1.00 ug/l - 40 78.8-129 - 73-134 - EPA 8260B Chlorobenzene 0.0500 1.00 ug/l - 40 72.9-134 25 80-124 25 EPA 8260B Chloroethane 0.110 1.00 ug/l - 40 79-126 - 79-124 - EPA 8260B Chloroform 0.0900 1.00 ug/l - 40 80-124 - 80-120 - EPA 8260B Chloromethane 0.0800 5.00 ug/l - 40 40-150 - 47-146 - EPA 8260B 2-Chlorotoluene 0.0700 1.00 ug/l - 40 80-120 - 72-125 - EPA 8260B 4-Chlorotoluene 0.110 1.00 ug/l - 40 80-121 - 77-124 - EPA 8260B 1,2-Dibromo-3-chloropropane 2.35 5.00 ug/l - 40 58.5-143 - 73-134 - EPA 8260B Dibromochloromethane 0.0700 1.00 ug/l - 40 80-129 - 69-138 - EPA 8260B 1,2-Dibromoethane 0.110 1.00 ug/l - 40 80-128 - 80-122 - EPA 8260B Dibromomethane 0.100 1.00 ug/l - 40 76.4-131 - 80-120 - EPA 8260B 1,2-Dichlorobenzene 0.0700 1.00 ug/l - 40 80-120 - 80-113 - EPA 8260B 1,3-Dichlorobenzene 0.0600 1.00 ug/l - 40 80-122 - 76-123 - EPA 8260B 1,4-Dichlorobenzene 0.120 1.00 ug/l - 40 80-120 - 73-120 - EPA 8260B Dichlorodifluoromethane 0.110 5.00 ug/l - 40 63.2-134 - 48-140 - EPA 8260B 1,1-Dichloroethane 0.0800 1.00 ug/l - 40 80-123 - 80-120 - EPA 8260B 1,2-Dichloroethane 0.100 1.00 ug/l - 40 80-121 - 78-123 - EPA 8260B 1,1-Dichloroethene 0.120 1.00 ug/l - 40 79.3-127 25 78-120 25 EPA 8260B cis-1,2-Dichloroethene 0.0900 1.00 ug/l - 40 76.6-136 - 80-120 - EPA 8260B trans-1,2-Dichloroethene 0.100 1.00 ug/l - 40 80-120 - 80-120 - EPA 8260B 1,2-Dichloropropane 0.110 1.00 ug/l - 40 80-120 - 80-126 - EPA 8260B 1,3-Dichloropropane 0.140 1.00 ug/l - 40 80-132 - 80-120 - EPA 8260B 2,2-Dichloropropane 0.0900 1.00 ug/l - 40 74.8-143 - 60-144 - EPA 8260B 1,1-Dichloropropene 0.0800 1.00 ug/l - 40 80-123 - 80-120 - EPA 8260B cis-1,3-Dichloropropene 0.0900 1.00 ug/l - 40 80-130 - 80-125 - EPA 8260B trans-1,3-Dichloropropene 0.100 1.00 ug/l - 40 80-135 - 80-130 - EPA 8260B Ethylbenzene 0.0600 1.00 ug/l - 40 80-124 - 80-120 - EPA 8260B Hexachlorobutadiene 0.210 4.00 ug/l - 40 46.3-157 - 64-145 - EPA 8260B 2-Hexanone 3.62 10.0 ug/l - 40 62.7-152 - 73-139 - EPA 8260B Isopropylbenzene 0.0700 2.00 ug/l - 40 80-129 - 77-124 - EPA 8260B p-Isopropyltoluene 0.0600 2.00 ug/l - 40 71.9-138 - 68-130 - EPA 8260B 4-Methyl-2-pentanone 0.290 5.00 ug/l - 40 58.7-151 - 72-134 - EPA 8260B Methyl tert-butyl ether 0.0900 1.00 ug/l - 40 80-130 - 80-129 - EPA 8260B Methylene chloride 0.160 5.00 ug/l - 40 80-120 - 80-120 - EPA 8260B Naphthalene 0.0900 2.00 ug/l - 40 69-163 - 72-149 - EPA 8260B n-Propylbenzene 0.100 1.00 ug/l - 40 74.3-133 - 76-128 - EPA 8260B Styrene 0.0400 1.00 ug/l - 40 47.7-152 - 72-127 - EPA 8260B 1,1,1,2-Tetrachloroethane 0.0900 1.00 ug/l - 40 80-129 - 69-138 - EPA 8260B 1,1,2,2-Tetrachloroethane 0.0800 1.00 ug/l - 40 78.9-146 - 77-128 - EPA 8260B Tetrachloroethene 0.110 1.00 ug/l - 40 80-125 - 80-124 - EPA 8260B Toluene 0.110 1.00 ug/l - 40 79.7-131 25 80-124 25 EPA 8260B 1,2,3-Trichlorobenzene 0.100 1.00 ug/l - 40 70.1-154 - 69-138 - EPA 8260B 1,2,4-Trichlorobenzene 0.110 1.00 ug/l - 40 71.2-148 - 75-127 - EPA 8260B 1,1,1-Trichloroethane 0.120 1.00 ug/l - 40 80-127 - 76-132 - EPA 8260B 1,1,2-Trichloroethane 0.130 1.00 ug/l - 40 80-130 - 80-123 - EPA 8260B Trichloroethene 0.0800 1.00 ug/l - 40 68.4-130 25 80-132 25 EPA 8260B Trichlorofluoromethane 0.0600 1.00 ug/l - 40 79.1-129 - 77-137 - EPA 8260B 1,2,3-Trichloropropane 0.130 1.00 ug/l - 40 80-131 - 75-125 -

Page 7 of 11 Analytical Method Details - TestAmerica Portland

Surr. DUP Matrix Spike Blank Spike Method Analyte MDL MRL Units %R RPD %R RPD %R RPD EPA 8260B 1,2,4-Trimethylbenzene 0.0800 1.00 ug/l - 40 80-136 - 73-132 - EPA 8260B 1,3,5-Trimethylbenzene 0.0700 1.00 ug/l - 40 73.4-141 - 75-132 - EPA 8260B Vinyl chloride 0.100 1.00 ug/l - 40 73.1-132 - 76-133 - EPA 8260B o-Xylene 0.0700 1.00 ug/l - 40 85.5-124 - 77-123 - EPA 8260B m,p-Xylene 0.210 2.00 ug/l - 40 76.2-134 - 72-127 - EPA 8260B Dibromofluoromethane Surrogate 80-120 - - - - - EPA 8260B 1,2-DCA-d4 Surrogate 80-120 - - - - - EPA 8260B Toluene-d8 Surrogate 80-120 - - - - - EPA 8260B 4-BFB Surrogate 80-120 - - - - - EPA 8260B Fluorobenzene ug/l ------EPA 8260B Chlorobenzene-d5 ug/l ------EPA 8260B 1,4-Dichlorobenzene-d4 ug/l ------

Semivolatile Organic Compounds per EPA Method 8270C in Soil EPA 8270C 4-Chloro-3-methylphenol 0.0700 0.330 mg/kg dry w - 50 26-150 60 36-138 60 EPA 8270C 2-Chlorophenol 0.0700 0.330 mg/kg dry w - 50 8-150 60 18-137 60 EPA 8270C 2,4-Dichlorophenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 2,6-Dichlorophenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 2,4-Dimethylphenol 0.500 1.00 mg/kg dry w - 50 - - - - EPA 8270C 4,6-Dinitro-2-methylphenol 0.500 1.00 mg/kg dry w - 50 - - - - EPA 8270C 2,4-Dinitrophenol 2.00 2.00 mg/kg dry w - 50 - - - - EPA 8270C 2-Methylphenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 3-,4-Methylphenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 2-Nitrophenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 4-Nitrophenol 0.500 1.00 mg/kg dry w - 50 20-175 60 40-148 60 EPA 8270C Pentachlorophenol 0.500 1.00 mg/kg dry w - 50 12-150 60 22-129 60 EPA 8270C Phenol 0.0700 0.330 mg/kg dry w - 50 17-150 60 37-122 60 EPA 8270C 2,4,5-Trichlorophenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 2,4,6-Trichlorophenol 0.0700 0.330 mg/kg dry w - 50 - - - - EPA 8270C 2,3,4,6-Tetrachlorophenol 0.500 1.00 mg/kg dry w - 50 - - - - EPA 8270C 2-Fluorophenol Surrogate 28-119 - - - - - EPA 8270C Phenol-d6 Surrogate 35-125 - - - - - EPA 8270C 2,4,6-Tribromophenol Surrogate 30-127 - - - - -

Polynuclear Aromatic Compounds per EPA 8270M-SIM in Soil EPA 8270m 1-Methylnaphthalene 3.30 13.4 ug/kg dry w t ------EPA 8270m 2-Methylnaphthalene 3.30 13.4 ug/kg dry w t ------EPA 8270m Acenaphthene 3.30 13.4 ug/kg dry w t - 40 33-139 40 33-139 40 EPA 8270m Acenaphthylene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Anthracene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Benzo (a) anthracene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Benzo (a) pyrene 3.30 13.4 ug/kg dry w t - 40 45-149 40 45-149 40 EPA 8270m Benzo (b) fluoranthene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Benzo (ghi) perylene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Benzo (k) fluoranthene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Chrysene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Dibenzo (a,h) anthracene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Fluoranthene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Fluorene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Indeno (1,2,3-cd) pyrene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Naphthalene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Phenanthrene 3.30 13.4 ug/kg dry w t - 40 - - - - EPA 8270m Pyrene 3.30 13.4 ug/kg dry w t - 40 39-138 40 39-138 40 EPA 8270m Fluorene-d10 Surrogate 24-125 - - - - - EPA 8270m Pyrene-d10 Surrogate 41-141 - - - - - EPA 8270m Benzo (a) pyrene-d12 Surrogate 38-143 - - - - -

Page 8 of 11 Analytical Method Details - TestAmerica Portland

Surr. DUP Matrix Spike Blank Spike Method Analyte MDL MRL Units %R RPD %R RPD %R RPD EPA 8270m Naphthalene-d8 ug/kg dry w t ------EPA 8270m Acenaphthene-d10 ug/kg dry w t ------EPA 8270m Phenanthrene-d10 ug/kg dry w t ------EPA 8270m Chrysene-d12 ug/kg dry w t ------EPA 8270m Perylene-d12 ug/kg dry w t ------

Conventional Chemistry Parameters per APHA/EPA Methods in Soil SM4500-CN-C, ECyanide (total) 0.0600 0.250 mg/kg dry w - 40 75-125 40 75-125 20

Page 9 of 11 Sampling Guide - TestAmerica Portland

Hold Amount Analysis SpecificMethod Containe r Preservation (days) Needed

in Soil Metals, RCRA (8) ICPMS 6020 varies 8 oz. Ja r [Group Analysis ] 28 250 grams

*** DEFAULT GENERAL METHOD *** in Summa Canister

TO-15 (sub) Subcontract *** DEFAULT CONTAINER *** Store cool at 4°C in Dark 180

Gasoline Hydrocarbons per NW TPH-Gx Method in Soil 4 oz. Glass jar w/PTFE seal; NWTPH-Gx NW TPH-Gx min. headspace Store cool at 4°C 14 40 grams 4 oz. Glass jar w/PTFE seal; NWTPH-Gx W-Misc MeoH NW TPH-Gx min. headspace Store cool at 4°C 14 40 grams

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method in Soil NWTPH-Dx NWTPH-Dx 8 oz. ja r Store cool at 4° C 14 250 grams

Total Metals per EPA 6000/7000 Series Methods in Soil Ag Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams As Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Ba Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Cd Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Cd Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Cr Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Cr Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Pb Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Pb Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams Se Total ICPMS 6020 EPA 6020 8 oz. ja r Store cool at 4° C 180 100 grams

Total Mercury per EPA Method 7471A in Soil Hg Total 7471A EPA 7471A 8 oz. ja r Store cool at 4° C 28 100 grams

Volatile Organic Compounds per EPA Method 8260B in Soil 8260B Volatiles W-Misc MeoH EPA 8260B 4 oz. jar Ambe r Store cool at 4° C 14 40 grams

Volatile Organic Compounds per EPA Method 8260B in Water Add HCl to pH<2; Store cool at 8260B Volatiles EPA 8260B Voa Vial - HCl 4°C 14 3 VOA vials

Semivolatile Organic Compounds per EPA Method 8270C in Soil 8270C Phenols EPA 8270C 8 oz. ja r Store cool at 4° C 14 250 grams

Polynuclear Aromatic Compounds per EPA 8270M-SIM in Soil

Page 10 of 11 Sampling Guide - TestAmerica Portland

Hold Amount Analysis SpecificMethod Containe r Preservation (days) Needed 8270 SIM PAH EPA 8270m 8 oz. ja r Store cool at 4° C 14 250 grams

Conventional Chemistry Parameters per APHA/EPA Methods in Soil Cyanide 4500-C,E SM4500-CN-C,E 4 oz. ja r Store cool at 4° C 14 100 grams

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APPENDIX B Field Investigation Procedures

APPENDIX B FIELD INVESTIGATION PROCEDURES

This appendix describes the procedures used to complete the field work for the site characterization. Our field procedures included:

Subsurface explorations Sample collection Field screening procedures Sample container, labeling, and shipping requirements Decontamination procedures Investigative Derived Waste Field quality assurance/quality control (QA/QC)

Subsurface Explorations Utility Locates. The Oregon Utility Notification Center was contacted prior to conducting the field work.

Push Probes. Fifteen explorations were performed using direct-push technology. The depth of the explorations ranged from 5 to 30 ft, depending on the feature being assessed.

Sample Collection All samples were collected using clean, disposable equipment into laboratory-supplied containers.

Soil Samples. Soil cores were obtained with a continuous soil sampler using the push probe rig. After driving the sampler over the desired interval, the sampler was removed from the hole, and the soil core removed. The core is contained in a clear plastic sleeve inside the sampler barrel.

The cores were opened to allow visual observation and description of the soil sample, field screening, and discrete sampling. Soil samples were transferred into laboratory-supplied sample jars using disposable gloves. EPA Method 5035 trap and purge was used to collect soil samples for VOC analysis. All soil samples were field screened for the presence of contaminants. Extra soil from the cores was placed in a drum pending disposal.

Soil Gas Samples. Soil gas samples were collected in borings GRI-5, -10 and -11. The sample tip was placed at a depth of 5 ft and connected to the surface using new disposable tubing. A shroud was placed over the hole and sealed at the ground surface. Helium was introduced into the shroud and used as an indicator gas to demonstrate that short circuiting did not occur. The tubing was purged using a syringe and then the sample was collected in laboratory-supplied clean summa canisters. The soil gas was analyzed for VOCs using EPA Method TO-15. Laboratory testing was used to measure helium levels for leak checking.

Water Samples. Water samples were collected in borings GRI-5, and -9 through -11. Borings GRI-5 and -9 met refusal at depths of 28.2 and 28.5 ft below the ground surface, respectively. Borings GRI-10 and -11 were advanced to a depth of 30 ft. The temporary well was made of disposable PVC tubing. 10 ft of machine-slotted screen was placed at the bottom of each boring to allow water to enter the temporary well. Water samples were collected in laboratory-supplied bottles. Samples were collected using a peristaltic

B-1 pump supplied by Cascade Drilling Inc. New disposable tubing was used at each location. Extra water from the samples were placed in a drum pending disposal.

Hole Abandonment. After completion of each exploration, the hole was filled with bentonite pellets and hydrated with water. A concrete patch was completed at the surface seal for the two borings completed in the sidewalk.

Field Screening Procedures Soil was field screened using visual, olfactory, mechanical (photoionization detector (PID), and sheen methods.

Headspace Measurements. Headspace vapor measurements were made on soil samples using a ToxiRAE PGM30 PID to assess the possible presence of volatile organic compounds (VOCs). The PID is not compound or concentration specific, but provides a qualitative indication of the presence of VOCs. Soil samples were placed in jars (filled less than half full), covered, and allowed to warm to ambient temperature. PID measurements were made within 30 minutes of soil collection. Measurements were recorded on the field logs. The PID was calibrated to 100 ppm isobutylene/air prior to the start of each day’s work.

Sheen Tests. Sheen tests were conducted on soil samples to assess whether petroleum hydrocarbons are present. A small portion of the soil sample was placed in a wide-mouth jar partially filled with water. The presence of petroleum hydrocarbons are indicated if a sheen is produced on the water surface in the jar.

Sample Container, Labeling and Shipping Clean sample containers were provided by TestAmerica of Beaverton, Oregon, the analytical laboratory for the project. TestAmerica is an ORLAP-certified laboratory. Sample containers were fully filled, leaving no headspace. A sample label that included a unique sample number, date of collection, project number, and sampler’s initials was affixed to each soil or water sample. All sample containers were packed in an ice chest cooled with frozen ice packs for field storage and transported to GRI’s office for refrigerated storage or to the analytical laboratory. Chain-of-custody documentation was maintained at all times.

Decontamination Procedures To prevent cross-contamination between sampling events, clean, dedicated sampling equipment was used when possible for each sampling event and discarded after use. Cleaning of non-disposable items consisted of washing in a detergent solution and rinsing with tap water, followed by a purified water rinse. Push probe equipment was cleaned with a high-pressure wash after each location. All decontamination water was drummed pending disposal.

Investigative Derived Waste Disposal During field activities, extra soil from the cores was placed in a drum. Wash water used for equipment decontamination was also placed in a drum. The drums were stored on site in a secured area pending laboratory results. The wastes were designated non-hazardous materials and disposed of to Waste Management in Hillsboro, Oregon, as part of the disposal of the contaminated fill on site.

B-2 Field Quality Assurance/Quality Control (QA/QC) QA/QC was practiced throughout field activities. Disposable equipment including gloves, tubing, and core sleeves were used when possible. Non-disposable items were decontaminated before and after each sampling event to minimize possible cross-contamination. All laboratory containers were marked with identifying information to prevent sample mix-ups. Chain-of-custody documentation was maintained at all times. Duplicate samples were collected and field and trip blanks analyzed.

B-3

APPENDIX C Underground Tank Decommission Report (Soil Solutions, Inc.)

PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

ORELAP#: OR100021

October 07, 2010

Darren Blaine Soil Solutions 3540 SE 28th Ave Portland, OR 97202

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 09/28/10 18:20. The following list is a summary of the Work Orders contained in this report, generated on 10/07/10 09:18.

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

Work Order Project ProjectNumber PTI0949 Central City Concern 707 W. Burnside

TestAmerica Portland The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report shall not be reproduced except in full, without the written approval of the laboratory.

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received

[email protected]'Bgs PTI0949-01 Soil 09/28/10 00:00 09/28/10 18:20 [email protected]'Bgs PTI0949-02 Soil 09/28/10 00:00 09/28/10 18:20 [email protected]'Bgs PTI0949-03 Soil 09/28/10 00:00 09/28/10 18:20 [email protected]'Bgs PTI0949-04 Soil 09/28/10 00:00 09/28/10 18:20 [email protected]'Bgs PTI0949-05 Soil 09/28/10 00:00 09/28/10 18:20 Pit [email protected]' PTI0949-06 Soil 09/28/10 00:00 09/28/10 18:20 [email protected]'Bgs PTI0949-07 Soil 09/28/10 00:00 09/28/10 18:20

Darrell Auvil, Project Manager

www.testamericainc.com Page 2 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Gasoline Hydrocarbons per NW TPH-Gx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-01 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx 151 ----- 5.50 mg/kg dry 1x 10I0866 09/29/10 07:30 09/29/10 10:43

Surrogate(s): a,a,a-TFT (FID) 97.4% 50 - 150 % " "

PTI0949-02 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 5.05 mg/kg dry 1x 10I0866 09/29/10 07:30 09/29/10 12:15

Surrogate(s): a,a,a-TFT (FID) 100% 50 - 150 % " "

PTI0949-03 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.79 mg/kg dry 1x 10I0866 09/29/10 07:30 09/29/10 11:46

Surrogate(s): a,a,a-TFT (FID) 97.7% 50 - 150 % " "

PTI0949-04RE1 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx 365 ----- 53.1 mg/kg dry 10x 10I0866 09/29/10 07:30 09/29/10 13:37

Surrogate(s): a,a,a-TFT (FID) 127% 50 - 150 % " "

PTI0949-05 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx 1910 ----- 107 mg/kg dry 20x 10I0866 09/29/10 07:30 09/29/10 12:43

Surrogate(s): a,a,a-TFT (FID) 118% 50 - 150 % " "

PTI0949-06 (Pit [email protected]') Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx 1820 ----- 107 mg/kg dry 20x 10I0866 09/29/10 07:30 09/29/10 13:12

Surrogate(s): a,a,a-TFT (FID) 103% 50 - 150 % " "

PTI0949-07 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx 1740 ----- 110 mg/kg dry 20x 10I0866 09/29/10 07:30 09/29/10 13:41

Surrogate(s): a,a,a-TFT (FID) 102% 50 - 150 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 3 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-01 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Acetone EPA 8260B ND ----- 3440 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 20:48 Benzene " ND ----- 27.5 " " " " " Bromobenzene " ND ----- 138 " " " " " Bromochloromethane " ND ----- 138 " " " " " Bromodichloromethane " ND ----- 138 " " " " " Bromoform " ND ----- 138 " " " " " Bromomethane " ND ----- 688 " " " " " 2-Butanone (MEK) " ND ----- 1380 " " " " " n-Butylbenzene " ND ----- 688 " " " " " sec-Butylbenzene " ND ----- 138 " " " " " tert-Butylbenzene " ND ----- 138 " " " " " Carbon disulfide " ND ----- 1380 " " " " " Carbon tetrachloride " ND ----- 138 " " " " " Chlorobenzene " ND ----- 138 " " " " " Chloroethane " ND ----- 138 " " " " " Chloroform " ND ----- 138 " " " " " Chloromethane " ND ----- 688 " " " " " 2-Chlorotoluene " ND ----- 138 " " " " " 4-Chlorotoluene " ND ----- 138 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 688 " " " " " Dibromochloromethane " ND ----- 138 " " " " " 1,2-Dibromoethane " ND ----- 138 " " " " " Dibromomethane " ND ----- 138 " " " " " 1,2-Dichlorobenzene " ND ----- 138 " " " " " 1,3-Dichlorobenzene " ND ----- 138 " " " " " 1,4-Dichlorobenzene " ND ----- 138 " " " " " Dichlorodifluoromethane " ND ----- 688 " " " " " 1,1-Dichloroethane " ND ----- 138 " " " " " 1,2-Dichloroethane " ND ----- 138 " " " " " 1,1-Dichloroethene " ND ----- 138 " " " " " cis-1,2-Dichloroethene " ND ----- 138 " " " " " trans-1,2-Dichloroethene " ND ----- 138 " " " " " 1,2-Dichloropropane " ND ----- 138 " " " " " 1,3-Dichloropropane " ND ----- 138 " " " " " 2,2-Dichloropropane " ND ----- 138 " " " " " 1,1-Dichloropropene " ND ----- 138 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 4 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-01 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 138 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 20:48 trans-1,3-Dichloropropene " ND ----- 138 " " " " " Ethylbenzene " ND ----- 138 " " " " " Hexachlorobutadiene " ND ----- 550 " " " " " 2-Hexanone " ND ----- 1380 " " " " " Isopropylbenzene " ND ----- 275 " " " " " p-Isopropyltoluene " ND ----- 275 " " " " " 4-Methyl-2-pentanone " ND ----- 688 " " " " " Methyl tert-butyl ether " ND ----- 138 " " " " " Methylene chloride " ND ----- 688 " " " " " Naphthalene " ND ----- 275 " " " " " n-Propylbenzene " 232 ----- 138 " " " " " Styrene " ND ----- 138 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 138 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 138 " " " " " Tetrachloroethene " ND ----- 138 " " " " " Toluene " ND ----- 138 " " " " " 1,2,3-Trichlorobenzene " ND ----- 138 " " " " " 1,2,4-Trichlorobenzene " ND ----- 138 " " " " " 1,1,1-Trichloroethane " ND ----- 138 " " " " " 1,1,2-Trichloroethane " ND ----- 138 " " " " " Trichloroethene " ND ----- 138 " " " " " Trichlorofluoromethane " ND ----- 138 " " " " " 1,2,3-Trichloropropane " ND ----- 138 " " " " " 1,2,4-Trimethylbenzene " ND ----- 138 " " " " " 1,3,5-Trimethylbenzene " ND ----- 138 " " " " " Vinyl chloride " ND ----- 138 " " " " " o-Xylene " ND ----- 138 " " " " " m,p-Xylene " ND ----- 275 " " " " "

Surrogate(s): Dibromofluoromethane 93.6% 75 - 125 % 0.01x " 1,2-DCA-d4 90.1% 75 - 125 % " " Toluene-d8 103% 75 - 125 % " " 4-BFB 101% 75 - 125 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 5 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-04 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Acetone EPA 8260B ND ----- 3320 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 20:21 Benzene " ND ----- 26.5 " " " " " Bromobenzene " ND ----- 133 " " " " " Bromochloromethane " ND ----- 133 " " " " " Bromodichloromethane " ND ----- 133 " " " " " Bromoform " ND ----- 133 " " " " " Bromomethane " ND ----- 664 " " " " " 2-Butanone (MEK) " ND ----- 1330 " " " " " n-Butylbenzene " ND ----- 664 " " " " " sec-Butylbenzene " 240 ----- 133 " " " " " tert-Butylbenzene " ND ----- 133 " " " " " Carbon disulfide " ND ----- 1330 " " " " " Carbon tetrachloride " ND ----- 133 " " " " " Chlorobenzene " ND ----- 133 " " " " " Chloroethane " ND ----- 133 " " " " " Chloroform " ND ----- 133 " " " " " Chloromethane " ND ----- 664 " " " " " 2-Chlorotoluene " ND ----- 133 " " " " " 4-Chlorotoluene " ND ----- 133 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 664 " " " " " Dibromochloromethane " ND ----- 133 " " " " " 1,2-Dibromoethane " ND ----- 133 " " " " " Dibromomethane " ND ----- 133 " " " " " 1,2-Dichlorobenzene " ND ----- 133 " " " " " 1,3-Dichlorobenzene " ND ----- 133 " " " " " 1,4-Dichlorobenzene " ND ----- 133 " " " " " Dichlorodifluoromethane " ND ----- 664 " " " " " 1,1-Dichloroethane " ND ----- 133 " " " " " 1,2-Dichloroethane " ND ----- 133 " " " " " 1,1-Dichloroethene " ND ----- 133 " " " " " cis-1,2-Dichloroethene " ND ----- 133 " " " " " trans-1,2-Dichloroethene " ND ----- 133 " " " " " 1,2-Dichloropropane " ND ----- 133 " " " " " 1,3-Dichloropropane " ND ----- 133 " " " " " 2,2-Dichloropropane " ND ----- 133 " " " " " 1,1-Dichloropropene " ND ----- 133 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-04 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 133 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 20:21 trans-1,3-Dichloropropene " ND ----- 133 " " " " " Ethylbenzene " ND ----- 133 " " " " " Hexachlorobutadiene " ND ----- 531 " " " " " 2-Hexanone " ND ----- 1330 " " " " " Isopropylbenzene " 831 ----- 265 " " " " " p-Isopropyltoluene " ND ----- 265 " " " " " 4-Methyl-2-pentanone " ND ----- 664 " " " " " Methyl tert-butyl ether " ND ----- 133 " " " " " Methylene chloride " ND ----- 664 " " " " " Naphthalene " ND ----- 265 " " " " " n-Propylbenzene " 950 ----- 133 " " " " " Styrene " ND ----- 133 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 133 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 133 " " " " " Tetrachloroethene " ND ----- 133 " " " " " Toluene " ND ----- 133 " " " " " 1,2,3-Trichlorobenzene " ND ----- 133 " " " " " 1,2,4-Trichlorobenzene " ND ----- 133 " " " " " 1,1,1-Trichloroethane " ND ----- 133 " " " " " 1,1,2-Trichloroethane " ND ----- 133 " " " " " Trichloroethene " ND ----- 133 " " " " " Trichlorofluoromethane " ND ----- 133 " " " " " 1,2,3-Trichloropropane " ND ----- 133 " " " " " 1,2,4-Trimethylbenzene " ND ----- 133 " " " " " 1,3,5-Trimethylbenzene " ND ----- 133 " " " " " Vinyl chloride " ND ----- 133 " " " " " o-Xylene " ND ----- 133 " " " " " m,p-Xylene " ND ----- 265 " " " " "

Surrogate(s): Dibromofluoromethane 95.0% 75 - 125 % 0.01x " 1,2-DCA-d4 91.2% 75 - 125 % " " Toluene-d8 102% 75 - 125 % " " 4-BFB 99.8% 75 - 125 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 7 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-05 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Acetone EPA 8260B ND ----- 3350 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:54 Benzene " ND ----- 26.8 " " " " " Bromobenzene " ND ----- 134 " " " " " Bromochloromethane " ND ----- 134 " " " " " Bromodichloromethane " ND ----- 134 " " " " " Bromoform " ND ----- 134 " " " " " Bromomethane " ND ----- 670 " " " " " 2-Butanone (MEK) " ND ----- 1340 " " " " " n-Butylbenzene " ND ----- 670 " " " " " sec-Butylbenzene " 702 ----- 134 " " " " " tert-Butylbenzene " ND ----- 134 " " " " " Carbon disulfide " ND ----- 1340 " " " " " Carbon tetrachloride " ND ----- 134 " " " " " Chlorobenzene " ND ----- 134 " " " " " Chloroethane " ND ----- 134 " " " " " Chloroform " ND ----- 134 " " " " " Chloromethane " ND ----- 670 " " " " " 2-Chlorotoluene " ND ----- 134 " " " " " 4-Chlorotoluene " ND ----- 134 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 670 " " " " " Dibromochloromethane " ND ----- 134 " " " " " 1,2-Dibromoethane " ND ----- 134 " " " " " Dibromomethane " ND ----- 134 " " " " " 1,2-Dichlorobenzene " ND ----- 134 " " " " " 1,3-Dichlorobenzene " ND ----- 134 " " " " " 1,4-Dichlorobenzene " ND ----- 134 " " " " " Dichlorodifluoromethane " ND ----- 670 " " " " " 1,1-Dichloroethane " ND ----- 134 " " " " " 1,2-Dichloroethane " ND ----- 134 " " " " " 1,1-Dichloroethene " ND ----- 134 " " " " " cis-1,2-Dichloroethene " ND ----- 134 " " " " " trans-1,2-Dichloroethene " ND ----- 134 " " " " " 1,2-Dichloropropane " ND ----- 134 " " " " " 1,3-Dichloropropane " ND ----- 134 " " " " " 2,2-Dichloropropane " ND ----- 134 " " " " " 1,1-Dichloropropene " ND ----- 134 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 8 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-05 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 134 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:54 trans-1,3-Dichloropropene " ND ----- 134 " " " " " Ethylbenzene " 7100 ----- 134 " " " " " Hexachlorobutadiene " ND ----- 536 " " " " " 2-Hexanone " ND ----- 1340 " " " " " Isopropylbenzene " 2410 ----- 268 " " " " " p-Isopropyltoluene " 575 ----- 268 " " " " " 4-Methyl-2-pentanone " ND ----- 670 " " " " " Methyl tert-butyl ether " ND ----- 134 " " " " " Methylene chloride " ND ----- 670 " " " " " Naphthalene " 321 ----- 268 " " " " " n-Propylbenzene " 2770 ----- 134 " " " " " Styrene " ND ----- 134 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 134 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 134 " " " " " Tetrachloroethene " ND ----- 134 " " " " " Toluene " ND ----- 134 " " " " " 1,2,3-Trichlorobenzene " ND ----- 134 " " " " " 1,2,4-Trichlorobenzene " ND ----- 134 " " " " " 1,1,1-Trichloroethane " ND ----- 134 " " " " " 1,1,2-Trichloroethane " ND ----- 134 " " " " " Trichloroethene " ND ----- 134 " " " " " Trichlorofluoromethane " ND ----- 134 " " " " " 1,2,3-Trichloropropane " ND ----- 134 " " " " " 1,2,4-Trimethylbenzene " 2800 ----- 134 " " " " " 1,3,5-Trimethylbenzene " 2670 ----- 134 " " " " " Vinyl chloride " ND ----- 134 " " " " " o-Xylene " ND ----- 134 " " " " " m,p-Xylene " 2290 ----- 268 " " " " "

Surrogate(s): Dibromofluoromethane 96.4% 75 - 125 % 0.01x " 1,2-DCA-d4 90.2% 75 - 125 % " " Toluene-d8 104% 75 - 125 % " " 4-BFB 101% 75 - 125 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 9 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-06 (Pit [email protected]') Soil Sampled: 09/28/10 00:00

Acetone EPA 8260B ND ----- 3330 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:27 Benzene " ND ----- 26.6 " " " " " Bromobenzene " ND ----- 133 " " " " " Bromochloromethane " ND ----- 133 " " " " " Bromodichloromethane " ND ----- 133 " " " " " Bromoform " ND ----- 133 " " " " " Bromomethane " ND ----- 666 " " " " " 2-Butanone (MEK) " ND ----- 1330 " " " " " n-Butylbenzene " ND ----- 666 " " " " " sec-Butylbenzene " 573 ----- 133 " " " " " tert-Butylbenzene " ND ----- 133 " " " " " Carbon disulfide " ND ----- 1330 " " " " " Carbon tetrachloride " ND ----- 133 " " " " " Chlorobenzene " ND ----- 133 " " " " " Chloroethane " ND ----- 133 " " " " " Chloroform " ND ----- 133 " " " " " Chloromethane " ND ----- 666 " " " " " 2-Chlorotoluene " ND ----- 133 " " " " " 4-Chlorotoluene " ND ----- 133 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 666 " " " " " Dibromochloromethane " ND ----- 133 " " " " " 1,2-Dibromoethane " ND ----- 133 " " " " " Dibromomethane " ND ----- 133 " " " " " 1,2-Dichlorobenzene " ND ----- 133 " " " " " 1,3-Dichlorobenzene " ND ----- 133 " " " " " 1,4-Dichlorobenzene " ND ----- 133 " " " " " Dichlorodifluoromethane " ND ----- 666 " " " " " 1,1-Dichloroethane " ND ----- 133 " " " " " 1,2-Dichloroethane " ND ----- 133 " " " " " 1,1-Dichloroethene " ND ----- 133 " " " " " cis-1,2-Dichloroethene " ND ----- 133 " " " " " trans-1,2-Dichloroethene " ND ----- 133 " " " " " 1,2-Dichloropropane " ND ----- 133 " " " " " 1,3-Dichloropropane " ND ----- 133 " " " " " 2,2-Dichloropropane " ND ----- 133 " " " " " 1,1-Dichloropropene " ND ----- 133 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 10 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-06 (Pit [email protected]') Soil Sampled: 09/28/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 133 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:27 trans-1,3-Dichloropropene " ND ----- 133 " " " " " Ethylbenzene " 7820 ----- 133 " " " " " Hexachlorobutadiene " ND ----- 533 " " " " " 2-Hexanone " ND ----- 1330 " " " " " Isopropylbenzene " 2290 ----- 266 " " " " " p-Isopropyltoluene " 457 ----- 266 " " " " " 4-Methyl-2-pentanone " ND ----- 666 " " " " " Methyl tert-butyl ether " ND ----- 133 " " " " " Methylene chloride " ND ----- 666 " " " " " Naphthalene " ND ----- 266 " " " " " n-Propylbenzene " 2450 ----- 133 " " " " " Styrene " ND ----- 133 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 133 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 133 " " " " " Tetrachloroethene " ND ----- 133 " " " " " Toluene " ND ----- 133 " " " " " 1,2,3-Trichlorobenzene " ND ----- 133 " " " " " 1,2,4-Trichlorobenzene " ND ----- 133 " " " " " 1,1,1-Trichloroethane " ND ----- 133 " " " " " 1,1,2-Trichloroethane " ND ----- 133 " " " " " Trichloroethene " ND ----- 133 " " " " " Trichlorofluoromethane " ND ----- 133 " " " " " 1,2,3-Trichloropropane " ND ----- 133 " " " " " 1,2,4-Trimethylbenzene " 4590 ----- 133 " " " " " 1,3,5-Trimethylbenzene " 2390 ----- 133 " " " " " Vinyl chloride " ND ----- 133 " " " " " o-Xylene " ND ----- 133 " " " " " m,p-Xylene " 5650 ----- 266 " " " " "

Surrogate(s): Dibromofluoromethane 99.4% 75 - 125 % 0.01x " 1,2-DCA-d4 91.9% 75 - 125 % " " Toluene-d8 105% 75 - 125 % " " 4-BFB 102% 75 - 125 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 11 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-07 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

Acetone EPA 8260B ND ----- 3430 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:00 Benzene " ND ----- 27.4 " " " " " Bromobenzene " ND ----- 137 " " " " " Bromochloromethane " ND ----- 137 " " " " " Bromodichloromethane " ND ----- 137 " " " " " Bromoform " ND ----- 137 " " " " " Bromomethane " ND ----- 686 " " " " " 2-Butanone (MEK) " ND ----- 1370 " " " " " n-Butylbenzene " ND ----- 686 " " " " " sec-Butylbenzene " 669 ----- 137 " " " " " tert-Butylbenzene " ND ----- 137 " " " " " Carbon disulfide " ND ----- 1370 " " " " " Carbon tetrachloride " ND ----- 137 " " " " " Chlorobenzene " ND ----- 137 " " " " " Chloroethane " ND ----- 137 " " " " " Chloroform " ND ----- 137 " " " " " Chloromethane " ND ----- 686 " " " " " 2-Chlorotoluene " ND ----- 137 " " " " " 4-Chlorotoluene " ND ----- 137 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 686 " " " " " Dibromochloromethane " ND ----- 137 " " " " " 1,2-Dibromoethane " ND ----- 137 " " " " " Dibromomethane " ND ----- 137 " " " " " 1,2-Dichlorobenzene " ND ----- 137 " " " " " 1,3-Dichlorobenzene " ND ----- 137 " " " " " 1,4-Dichlorobenzene " ND ----- 137 " " " " " Dichlorodifluoromethane " ND ----- 686 " " " " " 1,1-Dichloroethane " ND ----- 137 " " " " " 1,2-Dichloroethane " ND ----- 137 " " " " " 1,1-Dichloroethene " ND ----- 137 " " " " " cis-1,2-Dichloroethene " ND ----- 137 " " " " " trans-1,2-Dichloroethene " ND ----- 137 " " " " " 1,2-Dichloropropane " ND ----- 137 " " " " " 1,3-Dichloropropane " ND ----- 137 " " " " " 2,2-Dichloropropane " ND ----- 137 " " " " " 1,1-Dichloropropene " ND ----- 137 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 12 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-07 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 137 ug/kg dry 1x 10J0044 10/02/10 07:15 10/02/10 19:00 trans-1,3-Dichloropropene " ND ----- 137 " " " " " Ethylbenzene " 2590 ----- 137 " " " " " Hexachlorobutadiene " ND ----- 548 " " " " " 2-Hexanone " ND ----- 1370 " " " " " Isopropylbenzene " 1610 ----- 274 " " " " " p-Isopropyltoluene " 513 ----- 274 " " " " " 4-Methyl-2-pentanone " ND ----- 686 " " " " " Methyl tert-butyl ether " ND ----- 137 " " " " " Methylene chloride " ND ----- 686 " " " " " Naphthalene " ND ----- 274 " " " " " n-Propylbenzene " 1920 ----- 137 " " " " " Styrene " ND ----- 137 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 137 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 137 " " " " " Tetrachloroethene " ND ----- 137 " " " " " Toluene " ND ----- 137 " " " " " 1,2,3-Trichlorobenzene " ND ----- 137 " " " " " 1,2,4-Trichlorobenzene " ND ----- 137 " " " " " 1,1,1-Trichloroethane " ND ----- 137 " " " " " 1,1,2-Trichloroethane " ND ----- 137 " " " " " Trichloroethene " ND ----- 137 " " " " " Trichlorofluoromethane " ND ----- 137 " " " " " 1,2,3-Trichloropropane " ND ----- 137 " " " " " 1,2,4-Trimethylbenzene " ND ----- 137 " " " " " 1,3,5-Trimethylbenzene " 679 ----- 137 " " " " " Vinyl chloride " ND ----- 137 " " " " " o-Xylene " ND ----- 137 " " " " " m,p-Xylene " 554 ----- 274 " " " " "

Surrogate(s): Dibromofluoromethane 103% 75 - 125 % 0.01x " 1,2-DCA-d4 97.0% 75 - 125 % " " Toluene-d8 105% 75 - 125 % " " 4-BFB 102% 75 - 125 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 13 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0949-01 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 68.6 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-02 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 75.6 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-03 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 81.0 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-04 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 71.1 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-05 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 69.3 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-06 (Pit [email protected]') Soil Sampled: 09/28/10 00:00

% Solids ASTM 73.3 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

PTI0949-07 ([email protected]'Bgs) Soil Sampled: 09/28/10 00:00

% Solids ASTM 71.4 ----- 0.0100 % by 1x 10I0901 09/29/10 14:51 09/29/10 17:25 D2216-80 Weight

Darrell Auvil, Project Manager

www.testamericainc.com Page 14 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Gasoline Hydrocarbons per NW TPH-Gx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0866 Soil Preparation Method: EPA 5035 Modified

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0866-BLK1) Extracted: 09/29/10 07:30 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 3.89 mg/kg wet 1x ------09/29/10 10:04

Surrogate(s): a,a,a-TFT (FID) Recovery: 106% Limits: 50-150% " 09/29/10 10:04

LCS (10I0866-BS1) Extracted: 09/29/10 07:30 Gasoline Range Hydrocarbons NW TPH-Gx 25.4 --- 3.85 mg/kg wet 1x -- 24.0 106% (70-130) -- -- 09/29/10 09:36

Surrogate(s): a,a,a-TFT (FID) Recovery: 108% Limits: 50-150% " 09/29/10 09:36

Duplicate (10I0866-DUP1) QC Source: PTI0949-02 Extracted: 09/29/10 07:30 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 5.05 mg/kg dry 1x ND ------(40) 09/29/10 13:02

Surrogate(s): a,a,a-TFT (FID) Recovery: 97.4% Limits: 50-150% " 09/29/10 13:02

Duplicate (10I0866-DUP2) QC Source: PTI0985-12 Extracted: 09/29/10 18:00 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 4.95 mg/kg dry 1x ND ------NR (40) 09/30/10 00:59

Surrogate(s): a,a,a-TFT (FID) Recovery: 102% Limits: 50-150% " 09/30/10 00:59

Matrix Spike (10I0866-MS1) QC Source: PTI0949-03 Extracted: 09/29/10 07:30 Gasoline Range Hydrocarbons NW TPH-Gx 36.1 --- 4.79 mg/kg dry 1x ND 29.9 121% (65-130) -- -- 09/29/10 14:13

Surrogate(s): a,a,a-TFT (FID) Recovery: 99.5% Limits: 50-150% " 09/29/10 14:13

Darrell Auvil, Project Manager

www.testamericainc.com Page 15 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0044-BLK1) Extracted: 10/02/10 07:15 Acetone EPA 8260B ND --- 2480 ug/kg wet 1x ------10/02/10 12:41 Benzene " ND --- 19.8 " " ------" Bromobenzene " ND --- 99.2 " " ------" Bromochloromethane " ND --- 99.2 " " ------" Bromodichloromethane " ND --- 99.2 " " ------" Bromoform " ND --- 99.2 " " ------" Bromomethane " ND --- 496 " " ------" 2-Butanone (MEK) " ND --- 992 " " ------" n-Butylbenzene " ND --- 496 " " ------" sec-Butylbenzene " ND --- 99.2 " " ------" tert-Butylbenzene " ND --- 99.2 " " ------" Carbon disulfide " ND --- 992 " " ------" Carbon tetrachloride " ND --- 99.2 " " ------" Chlorobenzene " ND --- 99.2 " " ------" Chloroethane " ND --- 99.2 " " ------" Chloroform " ND --- 99.2 " " ------" Chloromethane " ND --- 496 " " ------" 2-Chlorotoluene " ND --- 99.2 " " ------" 4-Chlorotoluene " ND --- 99.2 " " ------" 1,2-Dibromo-3-chloropropane " ND --- 496 " " ------" Dibromochloromethane " ND --- 99.2 " " ------" 1,2-Dibromoethane " ND --- 99.2 " " ------" Dibromomethane " ND --- 99.2 " " ------" 1,2-Dichlorobenzene " ND --- 99.2 " " ------" 1,3-Dichlorobenzene " ND --- 99.2 " " ------" 1,4-Dichlorobenzene " ND --- 99.2 " " ------" Dichlorodifluoromethane " ND --- 496 " " ------" 1,1-Dichloroethane " ND --- 99.2 " " ------" 1,2-Dichloroethane " ND --- 99.2 " " ------" 1,1-Dichloroethene " ND --- 99.2 " " ------" cis-1,2-Dichloroethene " ND --- 99.2 " " ------" trans-1,2-Dichloroethene " ND --- 99.2 " " ------" 1,2-Dichloropropane " ND --- 99.2 " " ------" 1,3-Dichloropropane " ND --- 99.2 " " ------" 2,2-Dichloropropane " ND --- 99.2 " " ------" 1,1-Dichloropropene " ND --- 99.2 " " ------" cis-1,3-Dichloropropene " ND --- 99.2 " " ------" trans-1,3-Dichloropropene " ND --- 99.2 " " ------" Ethylbenzene " ND --- 99.2 " " ------"

Darrell Auvil, Project Manager

www.testamericainc.com Page 16 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0044-BLK1) Extracted: 10/02/10 07:15 Hexachlorobutadiene EPA 8260B ND --- 397 ug/kg wet 1x ------10/02/10 12:41 2-Hexanone " ND --- 992 " " ------" Isopropylbenzene " ND --- 198 " " ------" p-Isopropyltoluene " ND --- 198 " " ------" 4-Methyl-2-pentanone " ND --- 496 " " ------" Methyl tert-butyl ether " ND --- 99.2 " " ------" Methylene chloride " ND --- 496 " " ------" Naphthalene " ND --- 198 " " ------" n-Propylbenzene " ND --- 99.2 " " ------" Styrene " ND --- 99.2 " " ------" 1,1,1,2-Tetrachloroethane " ND --- 99.2 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 99.2 " " ------" Tetrachloroethene " ND --- 99.2 " " ------" Toluene " ND --- 99.2 " " ------" 1,2,3-Trichlorobenzene " ND --- 99.2 " " ------" 1,2,4-Trichlorobenzene " ND --- 99.2 " " ------" 1,1,1-Trichloroethane " ND --- 99.2 " " ------" 1,1,2-Trichloroethane " ND --- 99.2 " " ------" Trichloroethene " ND --- 99.2 " " ------" Trichlorofluoromethane " ND --- 99.2 " " ------" 1,2,3-Trichloropropane " ND --- 99.2 " " ------" 1,2,4-Trimethylbenzene " ND --- 99.2 " " ------" 1,3,5-Trimethylbenzene " ND --- 99.2 " " ------" Vinyl chloride " ND --- 99.2 " " ------" o-Xylene " ND --- 99.2 " " ------" m,p-Xylene " ND --- 198 " " ------"

Surrogate(s): Dibromofluoromethane Recovery: 105% Limits: 75-125% 0.01x 10/02/10 12:41 1,2-DCA-d4 98.3% 75-125% " " Toluene-d8 105% 75-125% " " 4-BFB 105% 75-125% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 17 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0044-BS1) Extracted: 10/02/10 07:15 Benzene EPA 8260B 2120 --- 19.9 ug/kg wet 1x -- 1990 106% (81.9-125) -- -- 10/02/10 10:50 Chlorobenzene " 2050 --- 99.6 " " -- " 103% (79.2-125) -- -- " 1,1-Dichloroethene " 2040 --- 99.6 " " -- " 102% (66.1-125) -- -- " Toluene " 2100 --- 99.6 " " -- " 106% (80-125) -- -- " Trichloroethene " 2040 --- 99.6 " " -- " 103% (76-125) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 10:50 1,2-DCA-d4 97.4% 75-125% " " Toluene-d8 105% 75-125% " " 4-BFB 101% 75-125% " "

Matrix Spike (10J0044-MS1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Benzene EPA 8260B 2480 --- 24.0 ug/kg dry 1x ND 2400 103% (68.5-125) -- -- 10/02/10 11:19 Chlorobenzene " 2360 --- 120 " " ND " 98.1% (65.9-125) -- -- " 1,1-Dichloroethene " 2380 --- 120 " " ND " 99.2% (55.8-125) -- -- " Toluene " 2440 --- 120 " " ND " 102% (70.3-125) -- -- " Trichloroethene " 2400 --- 120 " " ND " 100% (65.5-125) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 11:19 1,2-DCA-d4 96.4% 75-125% " " Toluene-d8 104% 75-125% " " 4-BFB 98.2% 75-125% " "

Matrix Spike Dup (10J0044-MSD1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Benzene EPA 8260B 2430 --- 24.0 ug/kg dry 1x ND 2400 101% (68.5-125) 2.11% (25) 10/02/10 11:47 Chlorobenzene " 2300 --- 120 " " ND " 95.8% (65.9-125) 2.42% " " 1,1-Dichloroethene " 2350 --- 120 " " ND " 97.7% (55.8-125) 1.52% " " Toluene " 2360 --- 120 " " ND " 98.2% (70.3-125) 3.45% " " Trichloroethene " 2350 --- 120 " " ND " 98.0% (65.5-125) 2.07% " "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 11:47 1,2-DCA-d4 95.0% 75-125% " " Toluene-d8 104% 75-125% " " 4-BFB 100% 75-125% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 18 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Percent Dry Weight (Solids) per ASTM D2216-80 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0901 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10I0901-DUP1) QC Source: PTI0949-01 Extracted: 09/29/10 14:51 % Solids ASTM 66.9 --- 0.0100 % by Weight 1x 68.6 ------2.57% (20) 09/29/10 17:25 D2216-80

Darrell Auvil, Project Manager

www.testamericainc.com Page 19 of 20 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 10/07/10 09:18

Notes and Definitions

Report Specific Notes:

None

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

wet Sample results and reporting limits reported on a Wet Weight Basis (as received). Results with neither 'wet' nor 'dry' are reported - on a Wet Weight Basis. RPD - RELATIVE PERCENT DIFFERENCE (RPDs calculated using Results, not Percent Recoveries).

MRL - METHOD REPORTING LIMIT. Reporting Level at, or above, the lowest level standard of the Calibration Table. MDL* - METHOD DETECTION LIMIT. Reporting Level at, or above, the statistically derived limit based on 40CFR, Part 136, Appendix B. *MDLs are listed on the report only if the data has been evaluated below the MRL. Results between the MDL and MRL are reported as Estimated Results. Dil - Dilutions are calculated based on deviations from the standard dilution performed for an analysis, and may not represent the dilution found on the analytical raw data.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Electronic - Electronic Signature added in accordance with TestAmerica's Electronic Reporting and Electronic Signatures Policy. Signature Application of electronic signature indicates that the report has been reviewed and approved for release by the laboratory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Darrell Auvil, Project Manager

www.testamericainc.com Page 20 of 20 CERTIFICATION SUMMARY TestAmerica Portland

Method Matrix Oregon

ASTM D2216-80 Soil EPA 8260B Soil X NW TPH-Gx Soil X

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 1

PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

ORELAP#: OR100021

September 30, 2010

Darren Blaine Soil Solutions 3540 SE 28th Ave Portland, OR 97202

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 09/29/10 18:30. The following list is a summary of the Work Orders contained in this report, generated on 09/30/10 17:06.

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

Work Order Project ProjectNumber PTI0989 Central City Concern 707 W. Burnside

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received

[email protected]'Bgs PTI0989-01 Soil 09/29/10 00:00 09/29/10 18:30 [email protected]'Bgs PTI0989-02 Soil 09/29/10 00:00 09/29/10 18:30 [email protected]'Bgs PTI0989-03 Soil 09/29/10 00:00 09/29/10 18:30 [email protected]'Bgs PTI0989-04 Soil 09/29/10 00:00 09/29/10 18:30

Darrell Auvil, Project Manager

www.testamericainc.com Page 2 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

Gasoline Hydrocarbons per NW TPH-Gx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0989-01 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.91 mg/kg dry 1x 10I0913 09/30/10 08:00 09/30/10 11:20

Surrogate(s): a,a,a-TFT (FID) 104% 50 - 150 % " "

PTI0989-02 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 5.55 mg/kg dry 1x 10I0913 09/30/10 08:00 09/30/10 09:54

Surrogate(s): a,a,a-TFT (FID) 108% 50 - 150 % " "

PTI0989-03 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 5.34 mg/kg dry 1x 10I0913 09/30/10 08:00 09/30/10 11:48

Surrogate(s): a,a,a-TFT (FID) 99.1% 50 - 150 % " "

PTI0989-04 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 5.41 mg/kg dry 1x 10I0913 09/30/10 08:00 09/30/10 12:17

Surrogate(s): a,a,a-TFT (FID) 109% 50 - 150 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 3 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0989-01 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

% Solids ASTM 76.5 ----- 0.0100 % by 1x 10I0911 09/29/10 20:51 09/30/10 08:00 D2216-80 Weight

PTI0989-02 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

% Solids ASTM 70.9 ----- 0.0100 % by 1x 10I0911 09/29/10 20:51 09/30/10 08:00 D2216-80 Weight

PTI0989-03 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

% Solids ASTM 73.2 ----- 0.0100 % by 1x 10I0911 09/29/10 20:51 09/30/10 08:00 D2216-80 Weight

PTI0989-04 ([email protected]'Bgs) Soil Sampled: 09/29/10 00:00

% Solids ASTM 71.9 ----- 0.0100 % by 1x 10I0911 09/29/10 20:51 09/30/10 08:00 D2216-80 Weight

Darrell Auvil, Project Manager

www.testamericainc.com Page 4 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

Gasoline Hydrocarbons per NW TPH-Gx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0913 Soil Preparation Method: EPA 5035 Modified

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0913-BLK1) Extracted: 09/30/10 08:00 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 3.72 mg/kg wet 1x ------09/30/10 09:17

Surrogate(s): a,a,a-TFT (FID) Recovery: 110% Limits: 50-150% " 09/30/10 09:17

LCS (10I0913-BS1) Extracted: 09/30/10 08:00 Gasoline Range Hydrocarbons NW TPH-Gx 25.6 --- 3.72 mg/kg wet 1x -- 23.2 110% (70-130) -- -- 09/30/10 08:49

Surrogate(s): a,a,a-TFT (FID) Recovery: 110% Limits: 50-150% " 09/30/10 08:49

Duplicate (10I0913-DUP1) QC Source: PTI0989-01 Extracted: 09/30/10 08:00 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 4.91 mg/kg dry 1x ND ------NR (40) 09/30/10 10:51

Surrogate(s): a,a,a-TFT (FID) Recovery: 100% Limits: 50-150% " 09/30/10 10:51

Matrix Spike (10I0913-MS1) QC Source: PTI0989-02 Extracted: 09/30/10 08:00 Gasoline Range Hydrocarbons NW TPH-Gx 36.6 --- 5.55 mg/kg dry 1x ND 34.7 106% (65-130) -- -- 09/30/10 10:23

Surrogate(s): a,a,a-TFT (FID) Recovery: 106% Limits: 50-150% " 09/30/10 10:23

Darrell Auvil, Project Manager

www.testamericainc.com Page 5 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

Percent Dry Weight (Solids) per ASTM D2216-80 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0911 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10I0911-DUP1) QC Source: PTI0989-01 Extracted: 09/29/10 20:51 % Solids ASTM 76.3 --- 0.0100 % by Weight 1x 76.5 ------0.278% (20) 09/30/10 08:00 D2216-80

Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 7 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Soil Solutions Project Name: Central City Concern 3540 SE 28th Ave Project Number: 707 W. Burnside Report Created: Portland, OR 97202 Project Manager: Darren Blaine 09/30/10 17:06

Notes and Definitions

Report Specific Notes:

None

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Darrell Auvil, Project Manager

www.testamericainc.com Page 7 of 7 CERTIFICATION SUMMARY TestAmerica Portland

Method Matrix Oregon

ASTM D2216-80 Soil NW TPH-Gx Soil X

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 1

APPENDIX D Laboratory Data Reports

PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

ORELAP#: OR100021

October 20, 2010

Teresa Nowicki GRI Geotechnical & Environmental Consultants 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Beaverton, OR 97005

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 09/24/10 18:00. The following list is a summary of the Work Orders contained in this report, generated on 10/20/10 15:42.

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

Work Order Project ProjectNumber PTI0861 Central City Concern 5144

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

GRI Geotechnical & Environmental Consultants Project Name: Central City Concern 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Project Number: 5144 Report Created: Beaverton, OR 97005 Project Manager: Teresa Nowicki 10/20/10 15:42

ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received

GRI-1-2 PTI0861-01 Soil 09/24/10 14:15 09/24/10 18:00 GRI-1-6 PTI0861-02 Soil 09/24/10 14:15 09/24/10 18:00 GRI-2-1 PTI0861-03 Soil 09/24/10 14:00 09/24/10 18:00 GRI-3-1 PTI0861-04 Soil 09/24/10 15:10 09/24/10 18:00 GRI-3-6 PTI0861-05 Soil 09/24/10 15:10 09/24/10 18:00 GRI-4-4 PTI0861-06 Soil 09/24/10 13:35 09/24/10 18:00 GRI-4-7 PTI0861-07 Soil 09/24/10 13:45 09/24/10 18:00 GRI-6-11 PTI0861-09 Soil 09/24/10 15:25 09/24/10 18:00 GRI-6-15 PTI0861-10 Soil 09/24/10 15:30 09/24/10 18:00 GRI-7 PTI0861-11 Soil 09/24/10 10:50 09/24/10 18:00 GRI-8-9 PTI0861-12 Soil 09/24/10 10:10 09/24/10 18:00 GRI-8-18 PTI0861-13 Soil 09/24/10 10:10 09/24/10 18:00 GRI-9 PTI0861-14 Soil 09/24/10 09:30 09/24/10 18:00 Drum PTI0861-16 Soil 09/24/10 15:35 09/24/10 18:00 Dup PTI0861-17 Soil 09/24/10 10:50 09/24/10 18:00 Trip Blank PTI0861-18 Water 09/24/10 00:00 09/24/10 18:00 Field Blank PTI0861-19 Water 09/24/10 00:00 09/24/10 18:00

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 2 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Hydrocarbon Identification per NW-TPH Methodology TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-16 (Drum) Soil Sampled: 09/24/10 15:35

Gasoline Range Hydrocarbons NWTPH ND ----- 27.0 mg/kg dry 1x 10I0951 10/01/10 13:00 10/01/10 14:37 HCID Diesel Range Hydrocarbons " ND ----- 67.4 " " " " " Heavy Oil Range Hydrocarbons " ND ----- 135 " " " " "

Surrogate(s): 1-Chlorooctadecane 138% 50 - 150 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 3 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Gasoline Hydrocarbons per NW TPH-Gx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.31 mg/kg dry 1x 10I0794 09/27/10 17:00 09/27/10 21:58

Surrogate(s): a,a,a-TFT (FID) 104% 50 - 150 % " "

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.62 mg/kg dry 1x 10I0794 09/27/10 17:00 09/27/10 22:27

Surrogate(s): a,a,a-TFT (FID) 105% 50 - 150 % " "

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.47 mg/kg dry 1x 10I0794 09/27/10 17:00 09/27/10 23:23

Surrogate(s): a,a,a-TFT (FID) 104% 50 - 150 % " "

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 4.44 mg/kg dry 1x 10I0794 09/27/10 17:00 09/27/10 23:52

Surrogate(s): a,a,a-TFT (FID) 103% 50 - 150 % " "

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 12.0 mg/kg dry 1x 10I0794 09/24/10 15:25 09/27/10 19:08

Surrogate(s): a,a,a-TFT (FID) 120% 50 - 150 % " "

PTI0861-10 (GRI-6-15) Soil Sampled: 09/24/10 15:30

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 11.6 mg/kg dry 1x 10I0794 09/24/10 15:30 09/27/10 19:36

Surrogate(s): a,a,a-TFT (FID) 122% 50 - 150 % " "

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 14.1 mg/kg dry 1x 10I0794 09/24/10 10:50 09/27/10 20:05

Surrogate(s): a,a,a-TFT (FID) 122% 50 - 150 % " "

PTI0861-12 (GRI-8-9) Soil Sampled: 09/24/10 10:10

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 5.07 mg/kg dry 1x 10I0794 09/27/10 17:00 09/28/10 00:20

Surrogate(s): a,a,a-TFT (FID) 101% 50 - 150 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 4 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Gasoline Hydrocarbons per NW TPH-Gx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-13RE2 (GRI-8-18) Soil Sampled: 09/24/10 10:10

Gasoline Range Hydrocarbons NW TPH-Gx 106 ----- 10.7 mg/kg dry 1x 10I0794 09/24/10 10:10 09/28/10 10:43

Surrogate(s): a,a,a-TFT (FID) 121% 50 - 150 % " "

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 12.8 mg/kg dry 1x 10I0794 09/24/10 09:30 09/27/10 21:01

Surrogate(s): a,a,a-TFT (FID) 116% 50 - 150 % " "

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 13.9 mg/kg dry 1x 10I0794 09/24/10 10:50 09/27/10 21:30

Surrogate(s): a,a,a-TFT (FID) 124% 50 - 150 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 5 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Diesel Range Organics NWTPH-Dx ND ----- 14.0 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 14:03 Residual Range/Heavy Oil " ND ----- 28.1 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 53.5% 50 - 150 % " "

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Diesel Range Organics NWTPH-Dx ND ----- 72.6 mg/kg dry 5x 10I0922 09/30/10 13:00 10/01/10 14:21 RL7 Residual Range/Heavy Oil " 530 ----- 145 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 69.9% 50 - 150 % " "

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Diesel Range Organics NWTPH-Dx ND ----- 14.3 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 14:38 Residual Range/Heavy Oil " 115 ----- 28.7 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 69.2% 50 - 150 % " "

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Diesel Range Organics NWTPH-Dx ND ----- 17.3 mg/kg dry 1x 10J0127 10/05/10 15:00 10/06/10 00:06 Residual Range/Heavy Oil " ND ----- 34.6 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 58.1% 50 - 150 % " "

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Diesel Range Organics NWTPH-Dx 21.0 ----- 13.7 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 14:56 Q6 Residual Range/Heavy Oil " 165 ----- 27.4 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 59.4% 50 - 150 % " "

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Diesel Range Organics NWTPH-Dx ND ----- 16.4 mg/kg dry 1x 10J0127 10/05/10 15:00 10/06/10 00:24 Residual Range/Heavy Oil " ND ----- 32.8 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 57.8% 50 - 150 % " "

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

Diesel Range Organics NWTPH-Dx ND ----- 17.6 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 15:13

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

Residual Range/Heavy Oil NWTPH-Dx ND ----- 35.2 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 15:13 Organics

Surrogate(s): 1-Chlorooctadecane 52.5% 50 - 150 % " "

PTI0861-10 (GRI-6-15) Soil Sampled: 09/24/10 15:30

Diesel Range Organics NWTPH-Dx ND ----- 16.8 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 15:30 Residual Range/Heavy Oil " ND ----- 33.7 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 61.6% 50 - 150 % " "

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

Diesel Range Organics NWTPH-Dx ND ----- 18.1 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 16:15 Residual Range/Heavy Oil " ND ----- 36.2 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 53.0% 50 - 150 % " "

PTI0861-12 (GRI-8-9) Soil Sampled: 09/24/10 10:10

Diesel Range Organics NWTPH-Dx ND ----- 16.6 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 16:29 Residual Range/Heavy Oil " ND ----- 33.3 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 66.2% 50 - 150 % " "

PTI0861-13 (GRI-8-18) Soil Sampled: 09/24/10 10:10

Diesel Range Organics NWTPH-Dx 37.4 ----- 17.8 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 16:43 Q5 Residual Range/Heavy Oil " ND ----- 35.6 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 58.1% 50 - 150 % " "

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

Diesel Range Organics NWTPH-Dx ND ----- 16.3 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 16:56 Residual Range/Heavy Oil " ND ----- 32.6 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 64.3% 50 - 150 % " "

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

Diesel Range Organics NWTPH-Dx ND ----- 18.5 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 17:11

Christina Woodcock For Darrell Auvil, Project Manager

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Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

Residual Range/Heavy Oil NWTPH-Dx ND ----- 37.1 mg/kg dry 1x 10I0922 09/30/10 13:00 10/01/10 17:11 Organics

Surrogate(s): 1-Chlorooctadecane 60.2% 50 - 150 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 8 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Arsenic EPA 6020 20.3 ----- 0.542 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:09 Barium " 47.2 ----- 0.542 " " " " " Cadmium " ND ----- 0.542 " " " " " Chromium " 13.2 ----- 1.08 " " " " " Lead " 21.5 ----- 0.542 " " " " " Selenium " ND ----- 0.542 " " " " " Silver " ND ----- 0.542 " " " " "

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Arsenic EPA 6020 2.21 ----- 0.584 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:24 Barium " 110 ----- 0.584 " " " " " Cadmium " ND ----- 0.584 " " " " " Chromium " 10.4 ----- 1.17 " " " " " Lead " 47.0 ----- 0.584 " " " " " Selenium " ND ----- 0.584 " " " " " Silver " ND ----- 0.584 " " " " "

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Arsenic EPA 6020 6.46 ----- 0.577 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:29 Barium " 119 ----- 0.577 " " " " " Cadmium " ND ----- 0.577 " " " " " Chromium " 19.5 ----- 1.15 " " " " " Lead " 38.6 ----- 0.577 " " " " " Selenium " ND ----- 0.577 " " " " " Silver " ND ----- 0.577 " " " " "

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Arsenic EPA 6020 10.9 ----- 0.673 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:41 Barium " 186 ----- 0.673 " " " " " Cadmium " ND ----- 0.673 " " " " " Chromium " 23.4 ----- 1.35 " " " " " Lead " 12.9 ----- 0.673 " " " " " Selenium " ND ----- 0.673 " " " " " Silver " ND ----- 0.673 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 9 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Arsenic EPA 6020 3.78 ----- 0.546 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:45 Barium " 103 ----- 0.546 " " " " " Cadmium " ND ----- 0.546 " " " " " Chromium " 11.5 ----- 1.09 " " " " " Lead " 244 ----- 0.546 " " " " " Selenium " ND ----- 0.546 " " " " " Silver " ND ----- 0.546 " " " " "

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Arsenic EPA 6020 12.5 ----- 0.656 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:49 Barium " 197 ----- 0.656 " " " " " Cadmium " ND ----- 0.656 " " " " " Chromium " 24.6 ----- 1.31 " " " " " Lead " 14.9 ----- 0.656 " " " " " Selenium " ND ----- 0.656 " " " " " Silver " ND ----- 0.656 " " " " "

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

Cadmium EPA 6020 ND ----- 0.691 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:53 Chromium " 20.8 ----- 1.38 " " " " " Lead " 19.4 ----- 0.691 " " " " "

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

Cadmium EPA 6020 ND ----- 0.682 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 18:57 Chromium " 23.2 ----- 1.36 " " " " " Lead " 14.7 ----- 0.682 " " " " "

PTI0861-13 (GRI-8-18) Soil Sampled: 09/24/10 10:10

Cadmium EPA 6020 ND ----- 0.703 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 19:01 Chromium " 20.8 ----- 1.41 " " " " " Lead " 14.9 ----- 0.703 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 10 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

Cadmium EPA 6020 ND ----- 0.643 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 19:05 Chromium " 26.7 ----- 1.29 " " " " " Lead " 18.2 ----- 0.643 " " " " "

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

Cadmium EPA 6020 ND ----- 0.713 mg/kg dry 1x 10J0111 10/05/10 09:28 10/06/10 19:09 Chromium " 23.6 ----- 1.43 " " " " " Lead " 19.0 ----- 0.713 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 11 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

TCLP Metals per EPA 1311/6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Lead 1311/6020 0.232 ----- 0.0100 mg/l 1x 10J0623 10/19/10 14:08 10/19/10 21:28

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 12 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Mercury per EPA Method 7471A TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Mercury EPA 7471A ND ----- 0.101 mg/kg dry 1x 10I0904 09/29/10 17:12 09/30/10 12:05

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Mercury EPA 7471A ND ----- 0.0942 mg/kg dry 1x 10I0904 09/29/10 17:12 09/30/10 12:13

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Mercury EPA 7471A ND ----- 0.106 mg/kg dry 1x 10I0904 09/29/10 17:12 09/30/10 12:15

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Mercury EPA 7471A ND ----- 0.127 mg/kg dry 1x 10J0041 10/01/10 21:56 10/04/10 10:37

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Mercury EPA 7471A ND ----- 0.103 mg/kg dry 1x 10I0904 09/29/10 17:12 09/30/10 12:18

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Mercury EPA 7471A ND ----- 0.0928 mg/kg dry 1x 10J0041 10/01/10 21:56 10/04/10 10:39

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 13 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polychlorinated Biphenyls per EPA Method 8082 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

Aroclor 1016 EPA 8082 ND ----- 43.7 ug/kg dry 1x 10I0902 09/29/10 16:00 09/29/10 19:24 Aroclor 1221 " ND ----- 88.0 " " " " " Aroclor 1232 " ND ----- 43.7 " " " " " Aroclor 1242 " ND ----- 43.7 " " " " " Aroclor 1248 " ND ----- 43.7 " " " " " Aroclor 1254 " ND ----- 43.7 " " " " " Aroclor 1260 " ND ----- 43.7 " " " " "

Surrogate(s): Decachlorobiphenyl 75.3% 16 - 149 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 14 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

Acetone EPA 8260B ND ----- 7480 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 15:26 Benzene " ND ----- 59.8 " " " " " Bromobenzene " ND ----- 299 " " " " " Bromochloromethane " ND ----- 299 " " " " " Bromodichloromethane " ND ----- 299 " " " " " Bromoform " ND ----- 299 " " " " " Bromomethane " ND ----- 1500 " " " " " 2-Butanone (MEK) " ND ----- 2990 " " " " " n-Butylbenzene " ND ----- 1500 " " " " " sec-Butylbenzene " ND ----- 299 " " " " " tert-Butylbenzene " ND ----- 299 " " " " " Carbon disulfide " ND ----- 2990 " " " " " Carbon tetrachloride " ND ----- 299 " " " " " Chlorobenzene " ND ----- 299 " " " " " Chloroethane " ND ----- 299 " " " " " Chloroform " ND ----- 299 " " " " " Chloromethane " ND ----- 1500 " " " " " 2-Chlorotoluene " ND ----- 299 " " " " " 4-Chlorotoluene " ND ----- 299 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 1500 " " " " " Dibromochloromethane " ND ----- 299 " " " " " 1,2-Dibromoethane " ND ----- 299 " " " " " Dibromomethane " ND ----- 299 " " " " " 1,2-Dichlorobenzene " ND ----- 299 " " " " " 1,3-Dichlorobenzene " ND ----- 299 " " " " " 1,4-Dichlorobenzene " ND ----- 299 " " " " " Dichlorodifluoromethane " ND ----- 1500 " " " " " 1,1-Dichloroethane " ND ----- 299 " " " " " 1,2-Dichloroethane " ND ----- 299 " " " " " 1,1-Dichloroethene " ND ----- 299 " " " " " cis-1,2-Dichloroethene " ND ----- 299 " " " " " trans-1,2-Dichloroethene " ND ----- 299 " " " " " 1,2-Dichloropropane " ND ----- 299 " " " " " 1,3-Dichloropropane " ND ----- 299 " " " " " 2,2-Dichloropropane " ND ----- 299 " " " " " 1,1-Dichloropropene " ND ----- 299 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 15 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

cis-1,3-Dichloropropene EPA 8260B ND ----- 299 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 15:26 trans-1,3-Dichloropropene " ND ----- 299 " " " " " Ethylbenzene " ND ----- 299 " " " " " Hexachlorobutadiene " ND ----- 1200 " " " " " 2-Hexanone " ND ----- 2990 " " " " " Isopropylbenzene " ND ----- 598 " " " " " p-Isopropyltoluene " ND ----- 598 " " " " " 4-Methyl-2-pentanone " ND ----- 1500 " " " " " Methyl tert-butyl ether " ND ----- 299 " " " " " Methylene chloride " ND ----- 1500 " " " " " Naphthalene " ND ----- 598 " " " " " n-Propylbenzene " ND ----- 299 " " " " " Styrene " ND ----- 299 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 299 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 299 " " " " " Tetrachloroethene " ND ----- 299 " " " " " Toluene " ND ----- 299 " " " " " 1,2,3-Trichlorobenzene " ND ----- 299 " " " " " 1,2,4-Trichlorobenzene " ND ----- 299 " " " " " 1,1,1-Trichloroethane " ND ----- 299 " " " " " 1,1,2-Trichloroethane " ND ----- 299 " " " " " Trichloroethene " ND ----- 299 " " " " " Trichlorofluoromethane " ND ----- 299 " " " " " 1,2,3-Trichloropropane " ND ----- 299 " " " " " 1,2,4-Trimethylbenzene " ND ----- 299 " " " " " 1,3,5-Trimethylbenzene " ND ----- 299 " " " " " Vinyl chloride " ND ----- 299 " " " " " o-Xylene " ND ----- 299 " " " " " m,p-Xylene " ND ----- 598 " " " " "

Surrogate(s): Dibromofluoromethane 102% 75 - 125 % 0.01x " 1,2-DCA-d4 108% 75 - 125 % " " Toluene-d8 96.4% 75 - 125 % " " 4-BFB 95.1% 75 - 125 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 16 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

Acetone EPA 8260B ND ----- 8830 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 15:53 Benzene " ND ----- 70.6 " " " " " Bromobenzene " ND ----- 353 " " " " " Bromochloromethane " ND ----- 353 " " " " " Bromodichloromethane " ND ----- 353 " " " " " Bromoform " ND ----- 353 " " " " " Bromomethane " ND ----- 1770 " " " " " 2-Butanone (MEK) " ND ----- 3530 " " " " " n-Butylbenzene " ND ----- 1770 " " " " " sec-Butylbenzene " ND ----- 353 " " " " " tert-Butylbenzene " ND ----- 353 " " " " " Carbon disulfide " ND ----- 3530 " " " " " Carbon tetrachloride " ND ----- 353 " " " " " Chlorobenzene " ND ----- 353 " " " " " Chloroethane " ND ----- 353 " " " " " Chloroform " ND ----- 353 " " " " " Chloromethane " ND ----- 1770 " " " " " 2-Chlorotoluene " ND ----- 353 " " " " " 4-Chlorotoluene " ND ----- 353 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 1770 " " " " " Dibromochloromethane " ND ----- 353 " " " " " 1,2-Dibromoethane " ND ----- 353 " " " " " Dibromomethane " ND ----- 353 " " " " " 1,2-Dichlorobenzene " ND ----- 353 " " " " " 1,3-Dichlorobenzene " ND ----- 353 " " " " " 1,4-Dichlorobenzene " ND ----- 353 " " " " " Dichlorodifluoromethane " ND ----- 1770 " " " " " 1,1-Dichloroethane " ND ----- 353 " " " " " 1,2-Dichloroethane " ND ----- 353 " " " " " 1,1-Dichloroethene " ND ----- 353 " " " " " cis-1,2-Dichloroethene " ND ----- 353 " " " " " trans-1,2-Dichloroethene " ND ----- 353 " " " " " 1,2-Dichloropropane " ND ----- 353 " " " " " 1,3-Dichloropropane " ND ----- 353 " " " " " 2,2-Dichloropropane " ND ----- 353 " " " " " 1,1-Dichloropropene " ND ----- 353 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 17 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

cis-1,3-Dichloropropene EPA 8260B ND ----- 353 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 15:53 trans-1,3-Dichloropropene " ND ----- 353 " " " " " Ethylbenzene " ND ----- 353 " " " " " Hexachlorobutadiene " ND ----- 1410 " " " " " 2-Hexanone " ND ----- 3530 " " " " " Isopropylbenzene " ND ----- 706 " " " " " p-Isopropyltoluene " ND ----- 706 " " " " " 4-Methyl-2-pentanone " ND ----- 1770 " " " " " Methyl tert-butyl ether " ND ----- 353 " " " " " Methylene chloride " ND ----- 1770 " " " " " Naphthalene " ND ----- 706 " " " " " n-Propylbenzene " ND ----- 353 " " " " " Styrene " ND ----- 353 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 353 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 353 " " " " " Tetrachloroethene " ND ----- 353 " " " " " Toluene " ND ----- 353 " " " " " 1,2,3-Trichlorobenzene " ND ----- 353 " " " " " 1,2,4-Trichlorobenzene " ND ----- 353 " " " " " 1,1,1-Trichloroethane " ND ----- 353 " " " " " 1,1,2-Trichloroethane " ND ----- 353 " " " " " Trichloroethene " ND ----- 353 " " " " " Trichlorofluoromethane " ND ----- 353 " " " " " 1,2,3-Trichloropropane " ND ----- 353 " " " " " 1,2,4-Trimethylbenzene " ND ----- 353 " " " " " 1,3,5-Trimethylbenzene " ND ----- 353 " " " " " Vinyl chloride " ND ----- 353 " " " " " o-Xylene " ND ----- 353 " " " " " m,p-Xylene " ND ----- 706 " " " " "

Surrogate(s): Dibromofluoromethane 103% 75 - 125 % 0.01x " 1,2-DCA-d4 108% 75 - 125 % " " Toluene-d8 96.0% 75 - 125 % " " 4-BFB 95.2% 75 - 125 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 18 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-13 (GRI-8-18) Soil Sampled: 09/24/10 10:10

Acetone EPA 8260B ND ----- 6660 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 16:20 Benzene " ND ----- 53.3 " " " " " Bromobenzene " ND ----- 266 " " " " " Bromochloromethane " ND ----- 266 " " " " " Bromodichloromethane " ND ----- 266 " " " " " Bromoform " ND ----- 266 " " " " " Bromomethane " ND ----- 1330 " " " " " 2-Butanone (MEK) " ND ----- 2660 " " " " " n-Butylbenzene " ND ----- 1330 " " " " " sec-Butylbenzene " ND ----- 266 " " " " " tert-Butylbenzene " ND ----- 266 " " " " " Carbon disulfide " ND ----- 2660 " " " " " Carbon tetrachloride " ND ----- 266 " " " " " Chlorobenzene " ND ----- 266 " " " " " Chloroethane " ND ----- 266 " " " " " Chloroform " ND ----- 266 " " " " " Chloromethane " ND ----- 1330 " " " " " 2-Chlorotoluene " ND ----- 266 " " " " " 4-Chlorotoluene " ND ----- 266 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 1330 " " " " " Dibromochloromethane " ND ----- 266 " " " " " 1,2-Dibromoethane " ND ----- 266 " " " " " Dibromomethane " ND ----- 266 " " " " " 1,2-Dichlorobenzene " ND ----- 266 " " " " " 1,3-Dichlorobenzene " ND ----- 266 " " " " " 1,4-Dichlorobenzene " ND ----- 266 " " " " " Dichlorodifluoromethane " ND ----- 1330 " " " " " 1,1-Dichloroethane " ND ----- 266 " " " " " 1,2-Dichloroethane " ND ----- 266 " " " " " 1,1-Dichloroethene " ND ----- 266 " " " " " cis-1,2-Dichloroethene " ND ----- 266 " " " " " trans-1,2-Dichloroethene " ND ----- 266 " " " " " 1,2-Dichloropropane " ND ----- 266 " " " " " 1,3-Dichloropropane " ND ----- 266 " " " " " 2,2-Dichloropropane " ND ----- 266 " " " " " 1,1-Dichloropropene " ND ----- 266 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 19 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-13 (GRI-8-18) Soil Sampled: 09/24/10 10:10

cis-1,3-Dichloropropene EPA 8260B ND ----- 266 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 16:20 trans-1,3-Dichloropropene " ND ----- 266 " " " " " Ethylbenzene " ND ----- 266 " " " " " Hexachlorobutadiene " ND ----- 1070 " " " " " 2-Hexanone " ND ----- 2660 " " " " " Isopropylbenzene " ND ----- 533 " " " " " p-Isopropyltoluene " ND ----- 533 " " " " " 4-Methyl-2-pentanone " ND ----- 1330 " " " " " Methyl tert-butyl ether " ND ----- 266 " " " " " Methylene chloride " ND ----- 1330 " " " " " Naphthalene " ND ----- 533 " " " " " n-Propylbenzene " ND ----- 266 " " " " " Styrene " ND ----- 266 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 266 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 266 " " " " " Tetrachloroethene " ND ----- 266 " " " " " Toluene " ND ----- 266 " " " " " 1,2,3-Trichlorobenzene " ND ----- 266 " " " " " 1,2,4-Trichlorobenzene " ND ----- 266 " " " " " 1,1,1-Trichloroethane " ND ----- 266 " " " " " 1,1,2-Trichloroethane " ND ----- 266 " " " " " Trichloroethene " ND ----- 266 " " " " " Trichlorofluoromethane " ND ----- 266 " " " " " 1,2,3-Trichloropropane " ND ----- 266 " " " " " 1,2,4-Trimethylbenzene " ND ----- 266 " " " " " 1,3,5-Trimethylbenzene " ND ----- 266 " " " " " Vinyl chloride " ND ----- 266 " " " " " o-Xylene " ND ----- 266 " " " " " m,p-Xylene " ND ----- 533 " " " " "

Surrogate(s): Dibromofluoromethane 103% 75 - 125 % 0.01x " 1,2-DCA-d4 107% 75 - 125 % " " Toluene-d8 96.4% 75 - 125 % " " 4-BFB 96.6% 75 - 125 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 20 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

Acetone EPA 8260B ND ----- 8010 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 16:48 Benzene " ND ----- 64.1 " " " " " Bromobenzene " ND ----- 320 " " " " " Bromochloromethane " ND ----- 320 " " " " " Bromodichloromethane " ND ----- 320 " " " " " Bromoform " ND ----- 320 " " " " " Bromomethane " ND ----- 1600 " " " " " 2-Butanone (MEK) " ND ----- 3200 " " " " " n-Butylbenzene " ND ----- 1600 " " " " " sec-Butylbenzene " ND ----- 320 " " " " " tert-Butylbenzene " ND ----- 320 " " " " " Carbon disulfide " ND ----- 3200 " " " " " Carbon tetrachloride " ND ----- 320 " " " " " Chlorobenzene " ND ----- 320 " " " " " Chloroethane " ND ----- 320 " " " " " Chloroform " ND ----- 320 " " " " " Chloromethane " ND ----- 1600 " " " " " 2-Chlorotoluene " ND ----- 320 " " " " " 4-Chlorotoluene " ND ----- 320 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 1600 " " " " " Dibromochloromethane " ND ----- 320 " " " " " 1,2-Dibromoethane " ND ----- 320 " " " " " Dibromomethane " ND ----- 320 " " " " " 1,2-Dichlorobenzene " ND ----- 320 " " " " " 1,3-Dichlorobenzene " ND ----- 320 " " " " " 1,4-Dichlorobenzene " ND ----- 320 " " " " " Dichlorodifluoromethane " ND ----- 1600 " " " " " 1,1-Dichloroethane " ND ----- 320 " " " " " 1,2-Dichloroethane " ND ----- 320 " " " " " 1,1-Dichloroethene " ND ----- 320 " " " " " cis-1,2-Dichloroethene " ND ----- 320 " " " " " trans-1,2-Dichloroethene " ND ----- 320 " " " " " 1,2-Dichloropropane " ND ----- 320 " " " " " 1,3-Dichloropropane " ND ----- 320 " " " " " 2,2-Dichloropropane " ND ----- 320 " " " " " 1,1-Dichloropropene " ND ----- 320 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 21 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

cis-1,3-Dichloropropene EPA 8260B ND ----- 320 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 16:48 trans-1,3-Dichloropropene " ND ----- 320 " " " " " Ethylbenzene " ND ----- 320 " " " " " Hexachlorobutadiene " ND ----- 1280 " " " " " 2-Hexanone " ND ----- 3200 " " " " " Isopropylbenzene " ND ----- 641 " " " " " p-Isopropyltoluene " ND ----- 641 " " " " " 4-Methyl-2-pentanone " ND ----- 1600 " " " " " Methyl tert-butyl ether " ND ----- 320 " " " " " Methylene chloride " ND ----- 1600 " " " " " Naphthalene " ND ----- 641 " " " " " n-Propylbenzene " ND ----- 320 " " " " " Styrene " ND ----- 320 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 320 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 320 " " " " " Tetrachloroethene " ND ----- 320 " " " " " Toluene " ND ----- 320 " " " " " 1,2,3-Trichlorobenzene " ND ----- 320 " " " " " 1,2,4-Trichlorobenzene " ND ----- 320 " " " " " 1,1,1-Trichloroethane " ND ----- 320 " " " " " 1,1,2-Trichloroethane " ND ----- 320 " " " " " Trichloroethene " ND ----- 320 " " " " " Trichlorofluoromethane " ND ----- 320 " " " " " 1,2,3-Trichloropropane " ND ----- 320 " " " " " 1,2,4-Trimethylbenzene " ND ----- 320 " " " " " 1,3,5-Trimethylbenzene " ND ----- 320 " " " " " Vinyl chloride " ND ----- 320 " " " " " o-Xylene " ND ----- 320 " " " " " m,p-Xylene " ND ----- 641 " " " " "

Surrogate(s): Dibromofluoromethane 96.4% 75 - 125 % 0.01x " 1,2-DCA-d4 101% 75 - 125 % " " Toluene-d8 91.4% 75 - 125 % " " 4-BFB 90.8% 75 - 125 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 22 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

Acetone EPA 8260B ND ----- 8700 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 17:15 Benzene " ND ----- 69.6 " " " " " Bromobenzene " ND ----- 348 " " " " " Bromochloromethane " ND ----- 348 " " " " " Bromodichloromethane " ND ----- 348 " " " " " Bromoform " ND ----- 348 " " " " " Bromomethane " ND ----- 1740 " " " " " 2-Butanone (MEK) " ND ----- 3480 " " " " " n-Butylbenzene " ND ----- 1740 " " " " " sec-Butylbenzene " ND ----- 348 " " " " " tert-Butylbenzene " ND ----- 348 " " " " " Carbon disulfide " ND ----- 3480 " " " " " Carbon tetrachloride " ND ----- 348 " " " " " Chlorobenzene " ND ----- 348 " " " " " Chloroethane " ND ----- 348 " " " " " Chloroform " ND ----- 348 " " " " " Chloromethane " ND ----- 1740 " " " " " 2-Chlorotoluene " ND ----- 348 " " " " " 4-Chlorotoluene " ND ----- 348 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 1740 " " " " " Dibromochloromethane " ND ----- 348 " " " " " 1,2-Dibromoethane " ND ----- 348 " " " " " Dibromomethane " ND ----- 348 " " " " " 1,2-Dichlorobenzene " ND ----- 348 " " " " " 1,3-Dichlorobenzene " ND ----- 348 " " " " " 1,4-Dichlorobenzene " ND ----- 348 " " " " " Dichlorodifluoromethane " ND ----- 1740 " " " " " 1,1-Dichloroethane " ND ----- 348 " " " " " 1,2-Dichloroethane " ND ----- 348 " " " " " 1,1-Dichloroethene " ND ----- 348 " " " " " cis-1,2-Dichloroethene " ND ----- 348 " " " " " trans-1,2-Dichloroethene " ND ----- 348 " " " " " 1,2-Dichloropropane " ND ----- 348 " " " " " 1,3-Dichloropropane " ND ----- 348 " " " " " 2,2-Dichloropropane " ND ----- 348 " " " " " 1,1-Dichloropropene " ND ----- 348 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 23 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

cis-1,3-Dichloropropene EPA 8260B ND ----- 348 ug/kg dry 1x 10J0044 10/02/10 07:15 10/06/10 17:15 trans-1,3-Dichloropropene " ND ----- 348 " " " " " Ethylbenzene " ND ----- 348 " " " " " Hexachlorobutadiene " ND ----- 1390 " " " " " 2-Hexanone " ND ----- 3480 " " " " " Isopropylbenzene " ND ----- 696 " " " " " p-Isopropyltoluene " ND ----- 696 " " " " " 4-Methyl-2-pentanone " ND ----- 1740 " " " " " Methyl tert-butyl ether " ND ----- 348 " " " " " Methylene chloride " ND ----- 1740 " " " " " Naphthalene " ND ----- 696 " " " " " n-Propylbenzene " ND ----- 348 " " " " " Styrene " ND ----- 348 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 348 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 348 " " " " " Tetrachloroethene " ND ----- 348 " " " " " Toluene " ND ----- 348 " " " " " 1,2,3-Trichlorobenzene " ND ----- 348 " " " " " 1,2,4-Trichlorobenzene " ND ----- 348 " " " " " 1,1,1-Trichloroethane " ND ----- 348 " " " " " 1,1,2-Trichloroethane " ND ----- 348 " " " " " Trichloroethene " ND ----- 348 " " " " " Trichlorofluoromethane " ND ----- 348 " " " " " 1,2,3-Trichloropropane " ND ----- 348 " " " " " 1,2,4-Trimethylbenzene " ND ----- 348 " " " " " 1,3,5-Trimethylbenzene " ND ----- 348 " " " " " Vinyl chloride " ND ----- 348 " " " " " o-Xylene " ND ----- 348 " " " " " m,p-Xylene " ND ----- 696 " " " " "

Surrogate(s): Dibromofluoromethane 103% 75 - 125 % 0.01x " 1,2-DCA-d4 108% 75 - 125 % " " Toluene-d8 97.2% 75 - 125 % " " 4-BFB 96.0% 75 - 125 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 24 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-18 (Trip Blank) Water Sampled: 09/24/10 00:00

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0015 10/01/10 09:00 10/01/10 13:27 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " ND ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 25 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-18 (Trip Blank) Water Sampled: 09/24/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0015 10/01/10 09:00 10/01/10 13:27 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " ND ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 91.2% 80 - 120 % " " 1,2-DCA-d4 95.8% 80 - 120 % " " Toluene-d8 93.0% 80 - 120 % " " 4-BFB 91.1% 80 - 120 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 26 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-19 (Field Blank) Water Sampled: 09/24/10 00:00 pH

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0015 10/01/10 09:00 10/01/10 13:54 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " ND ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 27 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-19 (Field Blank) Water Sampled: 09/24/10 00:00 pH

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0015 10/01/10 09:00 10/01/10 13:54 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " ND ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 92.3% 80 - 120 % " " 1,2-DCA-d4 96.8% 80 - 120 % " " Toluene-d8 94.2% 80 - 120 % " " 4-BFB 90.9% 80 - 120 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 28 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

4-Chloro-3-methylphenol EPA 8270C ND ----- 0.363 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 16:22 2-Chlorophenol " ND ----- 0.363 " " " " " 2,4-Dichlorophenol " ND ----- 0.363 " " " " " 2,6-Dichlorophenol " ND ----- 0.363 " " " " " 2,4-Dimethylphenol " ND ----- 1.10 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.10 " " " " " 2,4-Dinitrophenol " ND ----- 2.20 " " " " " 2-Methylphenol " ND ----- 0.363 " " " " " 3-,4-Methylphenol " ND ----- 0.363 " " " " " 2-Nitrophenol " ND ----- 0.363 " " " " " 4-Nitrophenol " ND ----- 1.10 " " " " " Pentachlorophenol " ND ----- 1.10 " " " " " Phenol " ND ----- 0.363 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.363 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.363 " " " " " 2,3,4,6-Tetrachlorophenol " ND ----- 1.10 " " " " "

Surrogate(s): 2-Fluorophenol 68.3% 28 - 119 % " " Phenol-d6 68.3% 35 - 125 % " " 2,4,6-Tribromophenol 70.1% 30 - 127 % " "

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

4-Chloro-3-methylphenol EPA 8270C ND ----- 0.386 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 17:07 2-Chlorophenol " ND ----- 0.386 " " " " " 2,4-Dichlorophenol " ND ----- 0.386 " " " " " 2,6-Dichlorophenol " ND ----- 0.386 " " " " " 2,4-Dimethylphenol " ND ----- 1.17 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.17 " " " " " 2,4-Dinitrophenol " ND ----- 2.34 " " " " " 2-Methylphenol " ND ----- 0.386 " " " " " 3-,4-Methylphenol " ND ----- 0.386 " " " " " 2-Nitrophenol " ND ----- 0.386 " " " " " 4-Nitrophenol " ND ----- 1.17 " " " " " Pentachlorophenol " ND ----- 1.17 " " " " " Phenol " ND ----- 0.386 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.386 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.386 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 29 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

2,3,4,6-Tetrachlorophenol EPA 8270C ND ----- 1.17 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 17:07

Surrogate(s): 2-Fluorophenol 78.9% 28 - 119 % " " Phenol-d6 82.8% 35 - 125 % " " 2,4,6-Tribromophenol 84.6% 30 - 127 % " "

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

4-Chloro-3-methylphenol EPA 8270C ND ----- 0.380 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 17:52 2-Chlorophenol " ND ----- 0.380 " " " " " 2,4-Dichlorophenol " ND ----- 0.380 " " " " " 2,6-Dichlorophenol " ND ----- 0.380 " " " " " 2,4-Dimethylphenol " ND ----- 1.15 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.15 " " " " " 2,4-Dinitrophenol " ND ----- 2.30 " " " " " 2-Methylphenol " ND ----- 0.380 " " " " " 3-,4-Methylphenol " ND ----- 0.380 " " " " " 2-Nitrophenol " ND ----- 0.380 " " " " " 4-Nitrophenol " ND ----- 1.15 " " " " " Pentachlorophenol " ND ----- 1.15 " " " " " Phenol " ND ----- 0.380 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.380 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.380 " " " " " 2,3,4,6-Tetrachlorophenol " ND ----- 1.15 " " " " "

Surrogate(s): 2-Fluorophenol 61.2% 28 - 119 % " " Phenol-d6 68.3% 35 - 125 % " " 2,4,6-Tribromophenol 77.6% 30 - 127 % " "

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Acenaphthene EPA 8270C ND ----- 0.451 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 18:36 Acenaphthylene " ND ----- 0.451 " " " " " Anthracene " ND ----- 0.451 " " " " " Benzo (a) anthracene " ND ----- 0.451 " " " " " Benzo (a) pyrene " ND ----- 0.451 " " " " " Benzo (b) fluoranthene " ND ----- 0.451 " " " " " Benzo (ghi) perylene " ND ----- 0.451 " " " " " Benzo (k) fluoranthene " ND ----- 0.451 " " " " " Benzoic Acid " ND ----- 1.37 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 30 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Benzyl alcohol EPA 8270C ND ----- 1.37 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 18:36 4-Bromophenyl phenyl ether " ND ----- 0.451 " " " " " Butyl benzyl phthalate " ND ----- 0.451 " " " " " 4-Chloro-3-methylphenol " ND ----- 0.451 " " " " " 4-Chloroaniline " ND ----- 2.73 " " " " " Bis(2-chloroethoxy)methane " ND ----- 0.451 " " " " " Bis(2-chloroethyl)ether " ND ----- 0.451 " " " " " Bis(2-chloroisopropyl)ether " ND ----- 0.451 " " " " " 2-Chloronaphthalene " ND ----- 0.451 " " " " " 2-Chlorophenol " ND ----- 0.451 " " " " " 4-Chlorophenyl phenyl ether " ND ----- 0.451 " " " " " Chrysene " ND ----- 0.451 " " " " " Di-n-butyl phthalate " ND ----- 1.37 " " " " " Di-n-octyl phthalate " ND ----- 0.451 " " " " " Dibenzo (a,h) anthracene " ND ----- 0.451 " " " " " Dibenzofuran " ND ----- 0.451 " " " " " 1,2-Dichlorobenzene " ND ----- 1.37 " " " " " 1,3-Dichlorobenzene " ND ----- 1.37 " " " " " 1,4-Dichlorobenzene " ND ----- 1.37 " " " " " 3,3´-Dichlorobenzidine " ND ----- 1.37 " " " " " 2,4-Dichlorophenol " ND ----- 0.451 " " " " " Diethyl phthalate " ND ----- 0.451 " " " " " 2,4-Dimethylphenol " ND ----- 1.37 " " " " " Dimethyl phthalate " ND ----- 0.451 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.37 " " " " " 2,4-Dinitrophenol " ND ----- 2.73 " " " " " 2,4-Dinitrotoluene " ND ----- 0.683 " " " " " 2,6-Dinitrotoluene " ND ----- 0.683 " " " " " Bis(2-ethylhexyl)phthalate " ND ----- 2.73 " " " " " Fluoranthene " ND ----- 0.451 " " " " " Fluorene " ND ----- 0.451 " " " " " Hexachlorobenzene " ND ----- 0.451 " " " " " Hexachlorobutadiene " ND ----- 1.37 " " " " " Hexachlorocyclopentadiene " ND ----- 1.37 " " " " " Hexachloroethane " ND ----- 1.37 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 0.451 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 31 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Isophorone EPA 8270C ND ----- 0.451 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 18:36 2-Methylnaphthalene " ND ----- 0.451 " " " " " 2-Methylphenol " ND ----- 0.451 " " " " " 3-,4-Methylphenol " ND ----- 0.451 " " " " " Naphthalene " ND ----- 0.451 " " " " " 2-Nitroaniline " ND ----- 0.451 " " " " " 3-Nitroaniline " ND ----- 1.37 " " " " " 4-Nitroaniline " ND ----- 0.451 " " " " " Nitrobenzene " ND ----- 0.451 " " " " " 2-Nitrophenol " ND ----- 0.451 " " " " " 4-Nitrophenol " ND ----- 1.37 " " " " " N-Nitrosodi-n-propylamine " ND ----- 0.451 " " " " " N-Nitrosodiphenylamine " ND ----- 0.451 " " " " " Pentachlorophenol " ND ----- 1.37 " " " " " Phenanthrene " ND ----- 0.451 " " " " " Phenol " ND ----- 0.451 " " " " " Pyrene " ND ----- 0.451 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.37 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.451 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.451 " " " " "

Surrogate(s): 2-Fluorobiphenyl 74.5% 30 - 126 % " " 2-Fluorophenol 73.8% 28 - 119 % " " Nitrobenzene-d5 70.0% 26 - 117 % " " Phenol-d6 76.1% 35 - 125 % " " p-Terphenyl-d14 90.6% 26 - 143 % " " 2,4,6-Tribromophenol 79.3% 30 - 127 % " "

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

4-Chloro-3-methylphenol EPA 8270C ND ----- 0.367 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 20:06 2-Chlorophenol " ND ----- 0.367 " " " " " 2,4-Dichlorophenol " ND ----- 0.367 " " " " " 2,6-Dichlorophenol " ND ----- 0.367 " " " " " 2,4-Dimethylphenol " ND ----- 1.11 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.11 " " " " " 2,4-Dinitrophenol " ND ----- 2.22 " " " " " 2-Methylphenol " ND ----- 0.367 " " " " " 3-,4-Methylphenol " ND ----- 0.367 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 32 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

2-Nitrophenol EPA 8270C ND ----- 0.367 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 20:06 4-Nitrophenol " ND ----- 1.11 " " " " " Pentachlorophenol " ND ----- 1.11 " " " " " Phenol " ND ----- 0.367 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.367 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.367 " " " " " 2,3,4,6-Tetrachlorophenol " ND ----- 1.11 " " " " "

Surrogate(s): 2-Fluorophenol 68.5% 28 - 119 % " " Phenol-d6 73.7% 35 - 125 % " " 2,4,6-Tribromophenol 75.3% 30 - 127 % " "

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Acenaphthene EPA 8270C ND ----- 0.430 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 19:21 Acenaphthylene " ND ----- 0.430 " " " " " Anthracene " ND ----- 0.430 " " " " " Benzo (a) anthracene " ND ----- 0.430 " " " " " Benzo (a) pyrene " ND ----- 0.430 " " " " " Benzo (b) fluoranthene " ND ----- 0.430 " " " " " Benzo (ghi) perylene " ND ----- 0.430 " " " " " Benzo (k) fluoranthene " ND ----- 0.430 " " " " " Benzoic Acid " ND ----- 1.30 " " " " " Benzyl alcohol " ND ----- 1.30 " " " " " 4-Bromophenyl phenyl ether " ND ----- 0.430 " " " " " Butyl benzyl phthalate " ND ----- 0.430 " " " " " 4-Chloro-3-methylphenol " ND ----- 0.430 " " " " " 4-Chloroaniline " ND ----- 2.60 " " " " " Bis(2-chloroethoxy)methane " ND ----- 0.430 " " " " " Bis(2-chloroethyl)ether " ND ----- 0.430 " " " " " Bis(2-chloroisopropyl)ether " ND ----- 0.430 " " " " " 2-Chloronaphthalene " ND ----- 0.430 " " " " " 2-Chlorophenol " ND ----- 0.430 " " " " " 4-Chlorophenyl phenyl ether " ND ----- 0.430 " " " " " Chrysene " ND ----- 0.430 " " " " " Di-n-butyl phthalate " ND ----- 1.30 " " " " " Di-n-octyl phthalate " ND ----- 0.430 " " " " " Dibenzo (a,h) anthracene " ND ----- 0.430 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 33 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Dibenzofuran EPA 8270C ND ----- 0.430 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 19:21 1,2-Dichlorobenzene " ND ----- 1.30 " " " " " 1,3-Dichlorobenzene " ND ----- 1.30 " " " " " 1,4-Dichlorobenzene " ND ----- 1.30 " " " " " 3,3´-Dichlorobenzidine " ND ----- 1.30 " " " " " 2,4-Dichlorophenol " ND ----- 0.430 " " " " " Diethyl phthalate " ND ----- 0.430 " " " " " 2,4-Dimethylphenol " ND ----- 1.30 " " " " " Dimethyl phthalate " ND ----- 0.430 " " " " " 4,6-Dinitro-2-methylphenol " ND ----- 1.30 " " " " " 2,4-Dinitrophenol " ND ----- 2.60 " " " " " 2,4-Dinitrotoluene " ND ----- 0.651 " " " " " 2,6-Dinitrotoluene " ND ----- 0.651 " " " " " Bis(2-ethylhexyl)phthalate " ND ----- 2.60 " " " " " Fluoranthene " ND ----- 0.430 " " " " " Fluorene " ND ----- 0.430 " " " " " Hexachlorobenzene " ND ----- 0.430 " " " " " Hexachlorobutadiene " ND ----- 1.30 " " " " " Hexachlorocyclopentadiene " ND ----- 1.30 " " " " " Hexachloroethane " ND ----- 1.30 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 0.430 " " " " " Isophorone " ND ----- 0.430 " " " " " 2-Methylnaphthalene " ND ----- 0.430 " " " " " 2-Methylphenol " ND ----- 0.430 " " " " " 3-,4-Methylphenol " ND ----- 0.430 " " " " " Naphthalene " ND ----- 0.430 " " " " " 2-Nitroaniline " ND ----- 0.430 " " " " " 3-Nitroaniline " ND ----- 1.30 " " " " " 4-Nitroaniline " ND ----- 0.430 " " " " " Nitrobenzene " ND ----- 0.430 " " " " " 2-Nitrophenol " ND ----- 0.430 " " " " " 4-Nitrophenol " ND ----- 1.30 " " " " " N-Nitrosodi-n-propylamine " ND ----- 0.430 " " " " " N-Nitrosodiphenylamine " ND ----- 0.430 " " " " " Pentachlorophenol " ND ----- 1.30 " " " " " Phenanthrene " ND ----- 0.430 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 34 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Phenol EPA 8270C ND ----- 0.430 mg/kg dry 1x 10J0161 10/06/10 08:51 10/07/10 19:21 Pyrene " ND ----- 0.430 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.30 " " " " " 2,4,5-Trichlorophenol " ND ----- 0.430 " " " " " 2,4,6-Trichlorophenol " ND ----- 0.430 " " " " "

Surrogate(s): 2-Fluorobiphenyl 62.8% 30 - 126 % " " 2-Fluorophenol 59.1% 28 - 119 % " " Nitrobenzene-d5 55.8% 26 - 117 % " " Phenol-d6 65.6% 35 - 125 % " " p-Terphenyl-d14 89.7% 26 - 143 % " " 2,4,6-Tribromophenol 68.2% 30 - 127 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 35 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Acenaphthene EPA 8270m ND ----- 14.7 ug/kg dry 1x 10I0884 09/29/10 11:15 10/05/10 17:52 Acenaphthylene " ND ----- 14.7 " " " " " Anthracene " 39.7 ----- 14.7 " " " " " Benzo (a) anthracene " 337 ----- 14.7 " " " " " Benzo (a) pyrene " 309 ----- 14.7 " " " " " Benzo (b) fluoranthene " 256 ----- 14.7 " " " " " Benzo (ghi) perylene " 156 ----- 14.7 " " " " " Benzo (k) fluoranthene " 273 ----- 14.7 " " " " " Chrysene " 260 ----- 14.7 " " " " " Dibenzo (a,h) anthracene " 67.7 ----- 14.7 " " " " " Fluoranthene " 557 ----- 14.7 " " " " " Fluorene " ND ----- 14.7 " " " " " Indeno (1,2,3-cd) pyrene " 169 ----- 14.7 " " " " " Naphthalene " ND ----- 14.7 " " " " " Phenanthrene " 67.5 ----- 14.7 " " " " " Pyrene " 439 ----- 14.7 " " " " "

Surrogate(s): Fluorene-d10 67.2% 24 - 125 % " " Pyrene-d10 61.2% 41 - 141 % " " Benzo (a) pyrene-d12 59.2% 38 - 143 % " "

PTI0861-02 (GRI-1-6) Soil Sampled: 09/24/10 14:15 H4

Acenaphthene EPA 8270m ND ----- 18.7 ug/kg dry 1x 10J0508 10/15/10 11:30 10/18/10 18:39 Acenaphthylene " ND ----- 18.7 " " " " " Anthracene " ND ----- 18.7 " " " " " Benzo (a) anthracene " ND ----- 18.7 " " " " " Benzo (a) pyrene " ND ----- 18.7 " " " " " Benzo (b) fluoranthene " ND ----- 18.7 " " " " " Benzo (ghi) perylene " ND ----- 18.7 " " " " " Benzo (k) fluoranthene " ND ----- 18.7 " " " " " Chrysene " ND ----- 18.7 " " " " " Dibenzo (a,h) anthracene " ND ----- 18.7 " " " " " Fluoranthene " ND ----- 18.7 " " " " " Fluorene " ND ----- 18.7 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 18.7 " " " " " Naphthalene " ND ----- 18.7 " " " " " Phenanthrene " ND ----- 18.7 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 36 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-02 (GRI-1-6) Soil Sampled: 09/24/10 14:15 H4

Pyrene EPA 8270m ND ----- 18.7 ug/kg dry 1x 10J0508 10/15/10 11:30 10/18/10 18:39

Surrogate(s): Fluorene-d10 85.7% 24 - 125 % " " Pyrene-d10 87.8% 41 - 141 % " " Benzo (a) pyrene-d12 82.6% 38 - 143 % " "

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Acenaphthene EPA 8270m ND ----- 78.0 ug/kg dry 2x 10I0884 09/29/10 11:15 10/05/10 18:22 Acenaphthylene " 582 ----- 78.0 " " " " " Anthracene " 915 ----- 78.0 " " " " " Benzo (a) anthracene " 487 ----- 78.0 " " " " " Benzo (a) pyrene " 797 ----- 78.0 " " " " " Benzo (b) fluoranthene " 409 ----- 78.0 " " " " " Benzo (ghi) perylene " 2330 ----- 78.0 " " " " " Benzo (k) fluoranthene " 379 ----- 78.0 " " " " " Chrysene " 548 ----- 78.0 " " " " " Dibenzo (a,h) anthracene " 328 ----- 78.0 " " " " " Fluoranthene " 698 ----- 78.0 " " " " " Fluorene " 82.6 ----- 78.0 " " " " " Indeno (1,2,3-cd) pyrene " 878 ----- 78.0 " " " " " Naphthalene " 109 ----- 78.0 " " " " " Phenanthrene " 594 ----- 78.0 " " " " " Pyrene " 1000 ----- 78.0 " " " " "

Surrogate(s): Fluorene-d10 88.7% 24 - 125 % " " Pyrene-d10 76.8% 41 - 141 % " " Benzo (a) pyrene-d12 82.0% 38 - 143 % " "

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Acenaphthene EPA 8270m ND ----- 15.4 ug/kg dry 1x 10I0884 09/29/10 11:15 10/05/10 18:51 Acenaphthylene " ND ----- 15.4 " " " " " Anthracene " ND ----- 15.4 " " " " " Benzo (a) anthracene " 136 ----- 15.4 " " " " " Benzo (a) pyrene " 175 ----- 15.4 " " " " " Benzo (b) fluoranthene " 199 ----- 15.4 " " " " " Benzo (ghi) perylene " 134 ----- 15.4 " " " " " Benzo (k) fluoranthene " 138 ----- 15.4 " " " " " Chrysene " 169 ----- 15.4 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 37 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Dibenzo (a,h) anthracene EPA 8270m 47.7 ----- 15.4 ug/kg dry 1x 10I0884 09/29/10 11:15 10/05/10 18:51 Fluoranthene " 191 ----- 15.4 " " " " " Fluorene " ND ----- 15.4 " " " " " Indeno (1,2,3-cd) pyrene " 119 ----- 15.4 " " " " " Naphthalene " ND ----- 15.4 " " " " " Phenanthrene " 71.8 ----- 15.4 " " " " " Pyrene " 156 ----- 15.4 " " " " "

Surrogate(s): Fluorene-d10 86.1% 24 - 125 % " " Pyrene-d10 77.4% 41 - 141 % " " Benzo (a) pyrene-d12 82.5% 38 - 143 % " "

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Acenaphthene EPA 8270m ND ----- 18.4 ug/kg dry 1x 10J0138 10/06/10 08:50 10/06/10 20:20 Acenaphthylene " ND ----- 18.4 " " " " " Anthracene " ND ----- 18.4 " " " " " Benzo (a) anthracene " ND ----- 18.4 " " " " " Benzo (a) pyrene " ND ----- 18.4 " " " " " Benzo (b) fluoranthene " ND ----- 18.4 " " " " " Benzo (ghi) perylene " ND ----- 18.4 " " " " " Benzo (k) fluoranthene " ND ----- 18.4 " " " " " Chrysene " ND ----- 18.4 " " " " " Dibenzo (a,h) anthracene " ND ----- 18.4 " " " " " Fluoranthene " ND ----- 18.4 " " " " " Fluorene " ND ----- 18.4 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 18.4 " " " " " Naphthalene " ND ----- 18.4 " " " " " Phenanthrene " ND ----- 18.4 " " " " " Pyrene " ND ----- 18.4 " " " " "

Surrogate(s): Fluorene-d10 77.9% 24 - 125 % " " Pyrene-d10 82.3% 41 - 141 % " " Benzo (a) pyrene-d12 81.0% 38 - 143 % " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 38 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35 RL3

Acenaphthene EPA 8270m ND ----- 73.6 ug/kg dry 2x 10I0884 09/29/10 11:15 10/05/10 19:21 Acenaphthylene " ND ----- 73.6 " " " " " Anthracene " ND ----- 73.6 " " " " " Benzo (a) anthracene " ND ----- 73.6 " " " " " Benzo (a) pyrene " ND ----- 73.6 " " " " " Benzo (b) fluoranthene " ND ----- 73.6 " " " " " Benzo (ghi) perylene " ND ----- 73.6 " " " " " Benzo (k) fluoranthene " ND ----- 73.6 " " " " " Chrysene " ND ----- 73.6 " " " " " Dibenzo (a,h) anthracene " ND ----- 73.6 " " " " " Fluoranthene " ND ----- 73.6 " " " " " Fluorene " ND ----- 73.6 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 73.6 " " " " " Naphthalene " ND ----- 73.6 " " " " " Phenanthrene " ND ----- 73.6 " " " " " Pyrene " ND ----- 73.6 " " " " "

Surrogate(s): Fluorene-d10 84.2% 24 - 125 % " " Pyrene-d10 79.0% 41 - 141 % " " Benzo (a) pyrene-d12 85.2% 38 - 143 % " "

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Acenaphthene EPA 8270m ND ----- 17.4 ug/kg dry 1x 10J0138 10/06/10 08:50 10/06/10 20:50 Acenaphthylene " ND ----- 17.4 " " " " " Anthracene " ND ----- 17.4 " " " " " Benzo (a) anthracene " ND ----- 17.4 " " " " " Benzo (a) pyrene " ND ----- 17.4 " " " " " Benzo (b) fluoranthene " ND ----- 17.4 " " " " " Benzo (ghi) perylene " ND ----- 17.4 " " " " " Benzo (k) fluoranthene " ND ----- 17.4 " " " " " Chrysene " ND ----- 17.4 " " " " " Dibenzo (a,h) anthracene " ND ----- 17.4 " " " " " Fluoranthene " ND ----- 17.4 " " " " " Fluorene " ND ----- 17.4 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 17.4 " " " " " Naphthalene " ND ----- 17.4 " " " " " Phenanthrene " ND ----- 17.4 " " " " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 39 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Pyrene EPA 8270m ND ----- 17.4 ug/kg dry 1x 10J0138 10/06/10 08:50 10/06/10 20:50

Surrogate(s): Fluorene-d10 87.0% 24 - 125 % " " Pyrene-d10 90.7% 41 - 141 % " " Benzo (a) pyrene-d12 86.7% 38 - 143 % " "

Christina Woodcock For Darrell Auvil, Project Manager

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Conventional Chemistry Parameters per APHA/EPA Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

Cyanide (total) SM4500-CN- 0.164 ----- 0.0339 mg/kg dry 1x 10J0017 10/01/10 11:04 10/01/10 14:27 C,E

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

Cyanide (total) SM4500-CN- 0.0914 ----- 0.0329 mg/kg dry 1x 10J0017 10/01/10 11:04 10/01/10 14:27 C,E

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

Cyanide (total) SM4500-CN- 0.0749 ----- 0.0360 mg/kg dry 1x 10J0017 10/01/10 11:04 10/01/10 14:27 C,E

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

Cyanide (total) SM4500-CN- 0.139 ----- 0.0425 mg/kg dry 1x 10J0157 10/06/10 08:22 10/06/10 12:03 C,E

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

Cyanide (total) SM4500-CN- 0.0821 ----- 0.0336 mg/kg dry 1x 10J0017 10/01/10 11:04 10/01/10 14:27 C,E

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

Cyanide (total) SM4500-CN- 0.212 ----- 0.0404 mg/kg dry 1x 10J0157 10/06/10 08:22 10/06/10 12:03 C,E

Christina Woodcock For Darrell Auvil, Project Manager

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Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-01 (GRI-1-2) Soil Sampled: 09/24/10 14:15

% Solids ASTM 90.4 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-02 (GRI-1-6) Soil Sampled: 09/24/10 14:15

% Solids ASTM 71.4 ----- 0.0100 % by 1x 10J0454 10/15/10 08:09 10/19/10 07:20 D2216-80 Weight

PTI0861-03 (GRI-2-1) Soil Sampled: 09/24/10 14:00

% Solids ASTM 84.8 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-04 (GRI-3-1) Soil Sampled: 09/24/10 15:10

% Solids ASTM 86.6 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-05 (GRI-3-6) Soil Sampled: 09/24/10 15:10

% Solids ASTM 72.1 ----- 0.0100 % by 1x 10J0155 10/06/10 08:19 10/07/10 08:20 D2216-80 Weight

PTI0861-06 (GRI-4-4) Soil Sampled: 09/24/10 13:35

% Solids ASTM 89.7 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-07 (GRI-4-7) Soil Sampled: 09/24/10 13:45

% Solids ASTM 76.2 ----- 0.0100 % by 1x 10J0155 10/06/10 08:19 10/07/10 08:20 D2216-80 Weight

PTI0861-09 (GRI-6-11) Soil Sampled: 09/24/10 15:25

% Solids ASTM 72.3 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-10 (GRI-6-15) Soil Sampled: 09/24/10 15:30

% Solids ASTM 73.7 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-11 (GRI-7) Soil Sampled: 09/24/10 10:50

% Solids ASTM 70.5 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-12 (GRI-8-9) Soil Sampled: 09/24/10 10:10

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Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-12 (GRI-8-9) Soil Sampled: 09/24/10 10:10

% Solids ASTM 76.2 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-13 (GRI-8-18) Soil Sampled: 09/24/10 10:10

% Solids ASTM 70.5 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-14 (GRI-9) Soil Sampled: 09/24/10 09:30

% Solids ASTM 75.5 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-16 (Drum) Soil Sampled: 09/24/10 15:35

% Solids ASTM 69.4 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

PTI0861-17 (Dup) Soil Sampled: 09/24/10 10:50

% Solids ASTM 66.8 ----- 0.0100 % by 1x 10I0817 09/28/10 07:42 09/29/10 07:10 D2216-80 Weight

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General Chemistry Parameters TestAmerica Nashville

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTI0861-16 (Drum) Soil Sampled: 09/24/10 15:35

Flashpoint ASTM D92 >200 ----- Deg F 1x 10J1717 10/09/10 10:57 10/09/10 13:30

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Hydrocarbon Identification per NW-TPH Methodology - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0951 Soil Preparation Method: TPH-HCID Extraction

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0951-BLK1) Extracted: 10/01/10 13:00 Gasoline Range Hydrocarbons NWTPH ND --- 20.0 mg/kg wet 1x ------10/01/10 13:00 HCID Diesel Range Hydrocarbons " ND --- 50.0 " " ------" Heavy Oil Range Hydrocarbons " ND --- 100 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 112% Limits: 50-150% " 10/01/10 13:00

Duplicate (10I0951-DUP1) QC Source: PTI0861-16 Extracted: 10/01/10 13:00 Gasoline Range Hydrocarbons NWTPH ND --- 27.4 mg/kg dry 1x ND ------NR (50) 10/01/10 13:23 HCID Diesel Range Hydrocarbons " ND --- 68.5 " " ND ------NR " " Heavy Oil Range Hydrocarbons " ND --- 137 " " ND ------NR " "

Surrogate(s): 1-Chlorooctadecane Recovery: 121% Limits: 50-150% " 10/01/10 13:23

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Gasoline Hydrocarbons per NW TPH-Gx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0794 Soil Preparation Method: EPA 5035 Modified

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0794-BLK1) Extracted: 09/27/10 11:30 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 3.96 mg/kg wet 1x ------09/27/10 13:29 Gasoline Range Hydrocarbons " ND --- 3.96 " " ------"

Surrogate(s): a,a,a-TFT (FID) Recovery: 111% Limits: 50-150% " 09/27/10 13:29 a,a,a-TFT (FID) 111% 50-150% " "

LCS (10I0794-BS1) Extracted: 09/27/10 11:30 Gasoline Range Hydrocarbons NW TPH-Gx 28.8 --- 4.00 mg/kg wet 1x -- 25.0 115% (70-130) -- -- 09/27/10 13:00 Gasoline Range Hydrocarbons " 28.8 --- 4.00 " " -- " 115% " -- -- "

Surrogate(s): a,a,a-TFT (FID) Recovery: 114% Limits: 50-150% " 09/27/10 13:00 a,a,a-TFT (FID) 114% 50-150% " "

Duplicate (10I0794-DUP1) QC Source: PTI0764-02RE1 Extracted: 09/27/10 11:30 Gasoline Range Hydrocarbons NW TPH-Gx 11.2 --- 3.98 mg/kg wet 1x 11.3 ------1.19% (40) 09/27/10 18:11 Gasoline Range Hydrocarbons " 11.2 --- 3.98 " " ------" "

Surrogate(s): a,a,a-TFT (FID) Recovery: 97.7% Limits: 50-150% " 09/27/10 18:11 a,a,a-TFT (FID) 97.7% 50-150% " "

Duplicate (10I0794-DUP2) QC Source: PTI0860-01 Extracted: 09/27/10 11:30 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 4.91 mg/kg dry 1x ND ------(40) 09/28/10 08:21 Gasoline Range Hydrocarbons " ND --- 5.92 " " ND ------" "

Surrogate(s): a,a,a-TFT (FID) Recovery: 114% Limits: 50-150% " 09/28/10 08:21 a,a,a-TFT (FID) 95.1% 50-150% " "

Matrix Spike (10I0794-MS1) QC Source: PTI0731-02 Extracted: 09/27/10 11:30 Gasoline Range Hydrocarbons NW TPH-Gx 35.7 --- 5.10 mg/kg dry 1x ND 31.9 112% (65-130) -- -- 09/27/10 16:50 Gasoline Range Hydrocarbons " 44.5 --- 6.36 " " ND " 140% " -- -- " M7 a,a,a-TFT (FID) 104% 50-150% " " a,a,a-TFT (FID) 130% 50-150% " "

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Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0922 Soil Preparation Method: EPA 3546 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0922-BLK1) Extracted: 09/30/10 13:00 Diesel Range Organics NWTPH-Dx ND --- 12.5 mg/kg wet 1x ------10/01/10 13:00 Residual Range/Heavy Oil Organics " ND --- 25.0 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 65.3% Limits: 50-150% " 10/01/10 13:00

LCS (10I0922-BS1) Extracted: 09/30/10 13:00 Diesel Range Organics NWTPH-Dx 115 --- 12.5 mg/kg wet 1x -- 125 91.8% (50-150) -- -- 10/01/10 13:14 Residual Range/Heavy Oil Organics " 68.2 --- 25.0 " " -- 75.0 90.9% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 76.8% Limits: 60-120% " 10/01/10 13:14

Duplicate (10I0922-DUP1) QC Source: PTI0861-01 Extracted: 09/30/10 13:00 Diesel Range Organics NWTPH-Dx 14.0 --- 13.8 mg/kg dry 1x ND ------69.6% (40) 10/01/10 13:30 R2, Q10 Residual Range/Heavy Oil Organics " ND --- 27.5 " " ND ------95.4% " " R4

Surrogate(s): 1-Chlorooctadecane Recovery: 65.5% Limits: 50-150% " 10/01/10 13:30

Duplicate (10I0922-DUP2) QC Source: PTI0861-03 Extracted: 09/30/10 13:00 Diesel Range Organics NWTPH-Dx ND --- 74.2 mg/kg dry 5x ND ------31.9% (40) 10/01/10 13:47 RL7 Residual Range/Heavy Oil Organics " 399 --- 148 " " 530 ------28.3% " "

Surrogate(s): 1-Chlorooctadecane Recovery: 67.7% Limits: 50-150% " 10/01/10 13:47

QC Batch: 10J0127 Soil Preparation Method: EPA 3546 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0127-BLK1) Extracted: 10/05/10 15:00 Diesel Range Organics NWTPH-Dx ND --- 12.5 mg/kg wet 1x ------10/05/10 22:53 Residual Range/Heavy Oil Organics " ND --- 25.0 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 76.7% Limits: 50-150% " 10/05/10 22:53

LCS (10J0127-BS1) Extracted: 10/05/10 15:00 Diesel Range Organics NWTPH-Dx 107 --- 12.5 mg/kg wet 1x -- 125 85.7% (50-150) -- -- 10/05/10 21:55 Residual Range/Heavy Oil Organics " 49.8 --- 25.0 " " -- 74.9 66.6% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 72.1% Limits: 60-120% " 10/05/10 21:55

Duplicate (10J0127-DUP1) QC Source: PTI0984-01 Extracted: 10/05/10 15:00 Diesel Range Organics NWTPH-Dx ND --- 13.4 mg/kg dry 1x ND ------22.9% (40) 10/05/10 23:11 Residual Range/Heavy Oil Organics " 40.2 --- 26.7 " " 28.4 ------34.3% " "

Surrogate(s): 1-Chlorooctadecane Recovery: 66.0% Limits: 50-150% " 10/05/10 23:11

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Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0127 Soil Preparation Method: EPA 3546 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0127-DUP2) QC Source: PTI1046-03 Extracted: 10/05/10 15:00 Diesel Range Organics NWTPH-Dx 908 --- 24.1 mg/kg dry 1x 404 ------76.7% (40) 10/05/10 23:30 R2, Q9 Residual Range/Heavy Oil Organics " 1120 --- 48.2 " " 494 ------77.9% " " R2

Surrogate(s): 1-Chlorooctadecane Recovery: 100% Limits: 50-150% " 10/05/10 23:30

Christina Woodcock For Darrell Auvil, Project Manager

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Total Metals per EPA 6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0111 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0111-BLK1) Extracted: 10/05/10 09:36 Arsenic EPA 6020 ND --- 0.485 mg/kg wet 1x ------10/06/10 18:01 Barium " ND --- 0.485 " " ------" Cadmium " ND --- 0.485 " " ------" Chromium " ND --- 0.971 " " ------" Lead " ND --- 0.485 " " ------" Selenium " ND --- 0.485 " " ------" Silver " ND --- 0.485 " " ------"

LCS (10J0111-BS1) Extracted: 10/05/10 09:36 Arsenic EPA 6020 45.8 --- 0.485 mg/kg wet 1x -- 48.5 94.3% (80-120) -- -- 10/06/10 18:05 Barium " 47.2 --- 0.485 " " -- " 97.3% " -- -- " Cadmium " 46.6 --- 0.485 " " -- " 95.9% " -- -- " Chromium " 47.2 --- 0.971 " " -- " 97.3% " -- -- " Lead " 48.5 --- 0.485 " " -- " 100% " -- -- " Selenium " 44.4 --- 0.485 " " -- " 91.4% " -- -- " Silver " 23.1 --- 0.485 " " -- 24.3 95.1% " -- -- "

Matrix Spike (10J0111-MS1) QC Source: PTI0861-01 Extracted: 10/05/10 09:36 Arsenic EPA 6020 54.7 --- 0.527 mg/kg dry 1x 20.3 52.7 65.4% (75-125) -- -- 10/06/10 18:17 M8 Barium " 98.5 --- 0.527 " " 47.2 " 97.3% " -- -- " Cadmium " 52.5 --- 0.527 " " 0.179 " 99.2% " -- -- " Chromium " 63.0 --- 1.05 " " 13.2 " 94.5% " -- -- " Lead " 76.4 --- 0.527 " " 21.5 " 104% " -- -- " Selenium " 47.6 --- 0.527 " " 0.157 " 90.1% " -- -- " Silver " 25.4 --- 0.527 " " 0.179 26.3 95.8% " -- -- "

Matrix Spike Dup (10J0111-MSD1) QC Source: PTI0861-01 Extracted: 10/05/10 09:36 Arsenic EPA 6020 55.2 --- 0.548 mg/kg dry 1x 20.3 54.8 63.7% (75-125) 0.855% (40) 10/06/10 18:21 M8 Barium " 99.4 --- 0.548 " " 47.2 " 95.3% " 0.952% " " Cadmium " 54.5 --- 0.548 " " 0.179 " 99.1% " 3.73% " " Chromium " 67.0 --- 1.10 " " 13.2 " 98.1% " 6.11% " " Lead " 76.4 --- 0.548 " " 21.5 " 100% " 0.0171% " " Selenium " 49.1 --- 0.548 " " 0.157 " 89.3% " 3.06% " " Silver " 26.3 --- 0.548 " " 0.179 27.4 95.2% " 3.20% " "

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TCLP Metals per EPA 1311/6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0623 Soil Preparation Method: EPA 1311/3005

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0623-BLK1) Extracted: 10/19/10 14:08 Lead 1311/6020 ND --- 0.0100 mg/l 1x ------10/19/10 21:20

LCS (10J0623-BS1) Extracted: 10/19/10 14:08 Lead 1311/6020 0.902 --- 0.0100 mg/l 1x -- 1.00 90.2% (80-120) -- -- 10/19/10 21:52

Matrix Spike (10J0623-MS1) QC Source: PTI0861-06 Extracted: 10/19/10 14:08 Lead 1311/6020 1.19 --- 0.0100 mg/l 1x 0.232 1.00 95.4% (75-125) -- -- 10/19/10 21:36

Matrix Spike (10J0623-MS2) QC Source: PTJ0376-01 Extracted: 10/19/10 14:08 Lead 1311/6020 0.917 --- 0.0100 mg/l 1x ND 1.00 91.7% (75-125) -- -- 10/19/10 21:44

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Total Mercury per EPA Method 7471A - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0904 Soil Preparation Method: EPA 7471A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0904-BLK1) Extracted: 09/29/10 17:06 Mercury EPA 7471A ND --- 0.0983 mg/kg wet 1x ------09/30/10 11:11

LCS (10I0904-BS1) Extracted: 09/29/10 17:06 Mercury EPA 7471A 0.628 --- 0.0978 mg/kg wet 1x -- 0.611 103% (80-120) -- -- 09/30/10 11:13

LCS Dup (10I0904-BSD1) Extracted: 09/29/10 17:06 Mercury EPA 7471A 0.625 --- 0.0990 mg/kg wet 1x -- 0.619 101% (80-120) 0.521% (20) 09/30/10 11:16

Duplicate (10I0904-DUP1) QC Source: PTI0772-10 Extracted: 09/29/10 17:06 Mercury EPA 7471A ND --- 0.116 mg/kg dry 1x ND ------59.2% (40) 09/30/10 11:19 R4

Matrix Spike (10I0904-MS1) QC Source: PTI0772-10 Extracted: 09/29/10 17:06 Mercury EPA 7471A 0.769 --- 0.111 mg/kg dry 1x 0.0343 0.697 105% (75-125) -- -- 09/30/10 11:21

Matrix Spike Dup (10I0904-MSD1) QC Source: PTI0772-10 Extracted: 09/29/10 17:06 Mercury EPA 7471A 0.787 --- 0.115 mg/kg dry 1x 0.0343 0.721 104% (75-125) 2.31% (40) 09/30/10 11:24

QC Batch: 10J0041 Soil Preparation Method: EPA 7471A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0041-BLK1) Extracted: 10/01/10 21:56 Mercury EPA 7471A ND --- 0.0995 mg/kg wet 1x ------10/04/10 10:20

LCS (10J0041-BS1) Extracted: 10/01/10 21:56 Mercury EPA 7471A 0.588 --- 0.0973 mg/kg wet 1x -- 0.608 96.7% (80-120) -- -- 10/04/10 10:23

LCS Dup (10J0041-BSD1) Extracted: 10/01/10 21:56 Mercury EPA 7471A 0.586 --- 0.0993 mg/kg wet 1x -- 0.620 94.5% (80-120) 0.274% (20) 10/04/10 10:26

Duplicate (10J0041-DUP1) QC Source: PTI0861-05 Extracted: 10/01/10 21:56 Mercury EPA 7471A ND --- 0.124 mg/kg dry 1x ND ------(40) 10/04/10 10:29

Matrix Spike (10J0041-MS1) QC Source: PTI0861-05 Extracted: 10/01/10 21:56 Mercury EPA 7471A 0.804 --- 0.124 mg/kg dry 1x ND 0.774 104% (75-125) -- -- 10/04/10 10:31

Matrix Spike Dup (10J0041-MSD1) QC Source: PTI0861-05 Extracted: 10/01/10 21:56 Mercury EPA 7471A 0.794 --- 0.126 mg/kg dry 1x ND 0.786 101% (75-125) 1.24% (40) 10/04/10 10:34

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Polychlorinated Biphenyls per EPA Method 8082 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0902 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0902-BLK1) Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 ND --- 33.0 ug/kg wet 1x ------09/29/10 20:53 Aroclor 1221 " ND --- 66.5 " " ------" Aroclor 1232 " ND --- 33.0 " " ------" Aroclor 1242 " ND --- 33.0 " " ------" Aroclor 1248 " ND --- 33.0 " " ------" Aroclor 1254 " ND --- 33.0 " " ------" Aroclor 1260 " ND --- 33.0 " " ------"

Surrogate(s): Decachlorobiphenyl Recovery: 84.5% Limits: 16-149% " 09/29/10 20:53

Blank (10I0902-BLK2) Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 ND --- 33.0 ug/kg wet 1x ------10/03/10 16:04 Aroclor 1221 " ND --- 66.5 " " ------" Aroclor 1232 " ND --- 33.0 " " ------" Aroclor 1242 " ND --- 33.0 " " ------" Aroclor 1248 " ND --- 33.0 " " ------" Aroclor 1254 " ND --- 33.0 " " ------" Aroclor 1260 " ND --- 33.0 " " ------"

Surrogate(s): Decachlorobiphenyl Recovery: 99.4% Limits: 16-149% " 10/03/10 16:04

LCS (10I0902-BS1) Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 272 --- 32.8 ug/kg wet 1x -- 329 82.8% (57-135) -- -- 09/29/10 20:31 Aroclor 1260 " 277 --- 32.8 " " -- " 84.1% (60-135) -- -- "

Surrogate(s): Decachlorobiphenyl Recovery: 87.6% Limits: 16-149% " 09/29/10 20:31

LCS (10I0902-BS2) Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 275 --- 32.8 ug/kg wet 1x -- 329 83.8% (57-135) -- -- 10/03/10 16:27 Aroclor 1260 " 309 --- 32.8 " " -- " 94.1% (60-135) -- -- "

Surrogate(s): Decachlorobiphenyl Recovery: 106% Limits: 16-149% " 10/03/10 16:27

Matrix Spike (10I0902-MS1) QC Source: PTI0861-14 Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 369 --- 43.4 ug/kg dry 1x ND 434 84.9% (37-145) -- -- 09/29/10 20:09 Aroclor 1260 " 373 --- 43.4 " " ND " 86.0% (25-144) -- -- "

Surrogate(s): Decachlorobiphenyl Recovery: 74.7% Limits: 16-149% " 09/29/10 20:09

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Polychlorinated Biphenyls per EPA Method 8082 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0902 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike Dup (10I0902-MSD1) QC Source: PTI0861-14 Extracted: 09/29/10 16:00 Aroclor 1016 EPA 8082 367 --- 43.4 ug/kg dry 1x ND 434 84.4% (37-145) 0.601% (26) 09/29/10 19:46 Aroclor 1260 " 369 --- 43.4 " " ND " 85.0% (25-144) 1.09% (30) "

Surrogate(s): Decachlorobiphenyl Recovery: 79.7% Limits: 16-149% " 09/29/10 19:46

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Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0015 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0015-BLK1) Extracted: 10/01/10 09:00 Acetone EPA 8260B ND --- 25.0 ug/l 1x ------10/01/10 12:33 Benzene " ND --- 1.00 " " ------" Bromobenzene " ND --- 1.00 " " ------" Bromochloromethane " ND --- 1.00 " " ------" Bromodichloromethane " ND --- 1.00 " " ------" Bromoform " ND --- 1.00 " " ------" Bromomethane " ND --- 5.00 " " ------" 2-Butanone (MEK) " ND --- 10.0 " " ------" n-Butylbenzene " ND --- 5.00 " " ------" sec-Butylbenzene " ND --- 1.00 " " ------" tert-Butylbenzene " ND --- 1.00 " " ------" Carbon disulfide " ND --- 10.0 " " ------" Carbon tetrachloride " ND --- 1.00 " " ------" Chlorobenzene " ND --- 1.00 " " ------" Chloroethane " ND --- 1.00 " " ------" Chloroform " ND --- 1.00 " " ------" Chloromethane " ND --- 5.00 " " ------" 2-Chlorotoluene " ND --- 1.00 " " ------" 4-Chlorotoluene " ND --- 1.00 " " ------" 1,2-Dibromo-3-chloropropane " ND --- 5.00 " " ------" Dibromochloromethane " ND --- 1.00 " " ------" 1,2-Dibromoethane " ND --- 1.00 " " ------" Dibromomethane " ND --- 1.00 " " ------" 1,2-Dichlorobenzene " ND --- 1.00 " " ------" 1,3-Dichlorobenzene " ND --- 1.00 " " ------" 1,4-Dichlorobenzene " ND --- 1.00 " " ------" Dichlorodifluoromethane " ND --- 5.00 " " ------" 1,1-Dichloroethane " ND --- 1.00 " " ------" 1,2-Dichloroethane " ND --- 1.00 " " ------" 1,1-Dichloroethene " ND --- 1.00 " " ------" cis-1,2-Dichloroethene " ND --- 1.00 " " ------" trans-1,2-Dichloroethene " ND --- 1.00 " " ------" 1,2-Dichloropropane " ND --- 1.00 " " ------" 1,3-Dichloropropane " ND --- 1.00 " " ------" 2,2-Dichloropropane " ND --- 1.00 " " ------" 1,1-Dichloropropene " ND --- 1.00 " " ------" cis-1,3-Dichloropropene " ND --- 1.00 " " ------" trans-1,3-Dichloropropene " ND --- 1.00 " " ------" Ethylbenzene " ND --- 1.00 " " ------"

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 54 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0015 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0015-BLK1) Extracted: 10/01/10 09:00 Hexachlorobutadiene EPA 8260B ND --- 4.00 ug/l 1x ------10/01/10 12:33 2-Hexanone " ND --- 10.0 " " ------" Isopropylbenzene " ND --- 2.00 " " ------" p-Isopropyltoluene " ND --- 2.00 " " ------" 4-Methyl-2-pentanone " ND --- 5.00 " " ------" Methyl tert-butyl ether " ND --- 1.00 " " ------" Methylene chloride " ND --- 5.00 " " ------" Naphthalene " ND --- 2.00 " " ------" n-Propylbenzene " ND --- 1.00 " " ------" Styrene " ND --- 1.00 " " ------" 1,1,1,2-Tetrachloroethane " ND --- 1.00 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 1.00 " " ------" Tetrachloroethene " ND --- 1.00 " " ------" Toluene " ND --- 1.00 " " ------" 1,2,3-Trichlorobenzene " ND --- 1.00 " " ------" 1,2,4-Trichlorobenzene " ND --- 1.00 " " ------" 1,1,1-Trichloroethane " ND --- 1.00 " " ------" 1,1,2-Trichloroethane " ND --- 1.00 " " ------" Trichloroethene " ND --- 1.00 " " ------" Trichlorofluoromethane " ND --- 1.00 " " ------" 1,2,3-Trichloropropane " ND --- 1.00 " " ------" 1,2,4-Trimethylbenzene " ND --- 1.00 " " ------" 1,3,5-Trimethylbenzene " ND --- 1.00 " " ------" Vinyl chloride " ND --- 1.00 " " ------" o-Xylene " ND --- 1.00 " " ------" m,p-Xylene " ND --- 2.00 " " ------"

Surrogate(s): Dibromofluoromethane Recovery: 90.2% Limits: 80-120% " 10/01/10 12:33 1,2-DCA-d4 95.3% 80-120% " " Toluene-d8 92.2% 80-120% " " 4-BFB 91.9% 80-120% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 55 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0015 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0015-BS1) Extracted: 10/01/10 09:00 Benzene EPA 8260B 19.5 --- 1.00 ug/l 1x -- 20.0 97.6% (80-120) -- -- 10/01/10 11:11 Chlorobenzene " 19.3 --- 1.00 " " -- " 96.6% (80-124) -- -- " 1,1-Dichloroethene " 20.6 --- 1.00 " " -- " 103% (78-120) -- -- " Toluene " 19.2 --- 1.00 " " -- " 95.9% (80-124) -- -- " Trichloroethene " 18.8 --- 1.00 " " -- " 94.0% (80-132) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 95.2% Limits: 80-120% " 10/01/10 11:11 1,2-DCA-d4 94.6% 80-120% " " Toluene-d8 96.3% 80-120% " " 4-BFB 95.4% 80-120% " "

LCS Dup (10J0015-BSD1) Extracted: 10/01/10 09:00 Benzene EPA 8260B 17.0 --- 1.00 ug/l 1x -- 20.0 85.0% (80-120) 13.7% (25) 10/01/10 11:40 Chlorobenzene " 17.0 --- 1.00 " " -- " 84.8% (80-124) 13.0% " " 1,1-Dichloroethene " 18.2 --- 1.00 " " -- " 91.2% (78-120) 12.4% " " Toluene " 16.8 --- 1.00 " " -- " 83.9% (80-124) 13.3% " " Trichloroethene " 16.7 --- 1.00 " " -- " 83.4% (80-132) 12.1% " "

Surrogate(s): Dibromofluoromethane Recovery: 98.6% Limits: 80-120% " 10/01/10 11:40 1,2-DCA-d4 98.6% 80-120% " " Toluene-d8 97.9% 80-120% " " 4-BFB 97.4% 80-120% " "

Matrix Spike (10J0015-MS1) QC Source: PTI0782-01 Extracted: 10/01/10 09:00 Benzene EPA 8260B 7820 --- 100 ug/l 100x 6010 2000 90.2% (80-124) -- -- 10/01/10 20:09 Chlorobenzene " 1880 --- 100 " " ND " 93.8% (72.9-134) -- -- " 1,1-Dichloroethene " 1980 --- 100 " " ND " 98.8% (79.3-127) -- -- " Toluene " 1980 --- 100 " " 126 " 92.9% (79.7-131) -- -- " Trichloroethene " 1800 --- 100 " " ND " 90.2% (68.4-130) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 90.4% Limits: 80-120% 1x 10/01/10 20:09 1,2-DCA-d4 91.4% 80-120% " " Toluene-d8 91.5% 80-120% " " 4-BFB 90.4% 80-120% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 56 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0015 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike Dup (10J0015-MSD1) QC Source: PTI0782-01 Extracted: 10/01/10 09:00 Benzene EPA 8260B 7730 --- 100 ug/l 100x 6010 2000 85.7% (80-124) 1.16% (25) 10/01/10 20:35 Chlorobenzene " 1850 --- 100 " " ND " 92.7% (72.9-134) 1.13% " " 1,1-Dichloroethene " 1820 --- 100 " " ND " 90.8% (79.3-127) 8.43% " " Toluene " 1920 --- 100 " " 126 " 89.6% (79.7-131) 3.44% " " Trichloroethene " 1730 --- 100 " " ND " 86.4% (68.4-130) 4.36% " "

Surrogate(s): Dibromofluoromethane Recovery: 93.8% Limits: 80-120% 1x 10/01/10 20:35 1,2-DCA-d4 93.8% 80-120% " " Toluene-d8 95.6% 80-120% " " 4-BFB 92.2% 80-120% " "

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 57 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0044-BLK1) Extracted: 10/02/10 07:15 1,3-Dichlorobenzene EPA 8260B ND --- 99.2 ug/kg wet 1x ------10/02/10 12:41 1,4-Dichlorobenzene " ND --- 99.2 " " ------" Dichlorodifluoromethane " ND --- 496 " " ------" 1,1-Dichloroethane " ND --- 99.2 " " ------" 1,2-Dichloroethane " ND --- 99.2 " " ------" 1,1-Dichloroethene " ND --- 99.2 " " ------" cis-1,2-Dichloroethene " ND --- 99.2 " " ------" trans-1,2-Dichloroethene " ND --- 99.2 " " ------" 1,2-Dichloropropane " ND --- 99.2 " " ------" 1,3-Dichloropropane " ND --- 99.2 " " ------" 2,2-Dichloropropane " ND --- 99.2 " " ------" 1,1-Dichloropropene " ND --- 99.2 " " ------" cis-1,3-Dichloropropene " ND --- 99.2 " " ------" trans-1,3-Dichloropropene " ND --- 99.2 " " ------" Ethylbenzene " ND --- 99.2 " " ------" Hexachlorobutadiene " ND --- 397 " " ------" 2-Hexanone " ND --- 992 " " ------" Isopropylbenzene " ND --- 198 " " ------" p-Isopropyltoluene " ND --- 198 " " ------" 4-Methyl-2-pentanone " ND --- 496 " " ------" Methyl tert-butyl ether " ND --- 99.2 " " ------" Methylene chloride " ND --- 496 " " ------" Naphthalene " ND --- 198 " " ------" n-Propylbenzene " ND --- 99.2 " " ------" Styrene " ND --- 99.2 " " ------" 1,1,1,2-Tetrachloroethane " ND --- 99.2 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 99.2 " " ------" Tetrachloroethene " ND --- 99.2 " " ------" Toluene " ND --- 99.2 " " ------" 1,2,3-Trichlorobenzene " ND --- 99.2 " " ------" 1,2,4-Trichlorobenzene " ND --- 99.2 " " ------" 1,1,1-Trichloroethane " ND --- 99.2 " " ------" 1,1,2-Trichloroethane " ND --- 99.2 " " ------" Trichloroethene " ND --- 99.2 " " ------" Trichlorofluoromethane " ND --- 99.2 " " ------" 1,2,3-Trichloropropane " ND --- 99.2 " " ------" 1,2,4-Trimethylbenzene " ND --- 99.2 " " ------" 1,3,5-Trimethylbenzene " ND --- 99.2 " " ------" Vinyl chloride " ND --- 99.2 " " ------"

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 58 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0044-BLK1) Extracted: 10/02/10 07:15 o-Xylene EPA 8260B ND --- 99.2 ug/kg wet 1x ------10/02/10 12:41 m,p-Xylene " ND --- 198 " " ------"

Surrogate(s): Dibromofluoromethane Recovery: 105% Limits: 75-125% 0.01x 10/02/10 12:41 1,2-DCA-d4 98.3% 75-125% " " Toluene-d8 105% 75-125% " " 4-BFB 105% 75-125% " "

LCS (10J0044-BS1) Extracted: 10/02/10 07:15 Acetone EPA 8260B 10400 --- 2490 ug/kg wet 1x -- 9960 105% (65-167) -- -- 10/02/10 10:50 Benzene " 2120 --- 19.9 " " -- 1990 106% (81.9-125) -- -- " Bromobenzene " 1900 --- 99.6 " " -- " 95.4% (80-120) -- -- " Bromochloromethane " 2040 --- 99.6 " " -- " 103% " -- -- " Bromodichloromethane " 2100 --- 99.6 " " -- " 105% (80-141) -- -- " Bromoform " 1550 --- 99.6 " " -- " 78.0% (75-151) -- -- " Bromomethane " 2160 --- 498 " " -- " 108% (65-130) -- -- " 2-Butanone (MEK) " 10400 --- 996 " " -- 9960 104% (68-127) -- -- " n-Butylbenzene " 2020 --- 498 " " -- 1990 102% (90-146) -- -- " sec-Butylbenzene " 2050 --- 99.6 " " -- " 103% (80-133) -- -- " tert-Butylbenzene " 1960 --- 99.6 " " -- " 98.2% (80-130) -- -- " Carbon disulfide " 4320 --- 996 " " -- 3980 108% (67-140) -- -- " Carbon tetrachloride " 1980 --- 99.6 " " -- 1990 99.6% (71-128) -- -- " Chlorobenzene " 2050 --- 99.6 " " -- " 103% (79.2-125) -- -- " Chloroethane " 2080 --- 99.6 " " -- " 104% (75-125) -- -- " Chloroform " 2120 --- 99.6 " " -- " 106% (80-121) -- -- " Chloromethane " 1580 --- 498 " " -- " 79.2% (42-150) -- -- " 2-Chlorotoluene " 1960 --- 99.6 " " -- " 98.5% (80-120) -- -- " 4-Chlorotoluene " 2000 --- 99.6 " " -- " 101% (80-126) -- -- " 1,2-Dibromo-3-chloropropane " 1750 --- 498 " " -- " 87.8% (61-128) -- -- " Dibromochloromethane " 1770 --- 99.6 " " -- " 89.0% (75-125) -- -- " 1,2-Dibromoethane " 2040 --- 99.6 " " -- " 102% (80-124) -- -- " Dibromomethane " 2080 --- 99.6 " " -- " 104% (80-120) -- -- " 1,2-Dichlorobenzene " 1860 --- 99.6 " " -- " 93.6% " -- -- " 1,3-Dichlorobenzene " 1960 --- 99.6 " " -- " 98.5% (80-126) -- -- " 1,4-Dichlorobenzene " 1860 --- 99.6 " " -- " 93.6% (77-121) -- -- " Dichlorodifluoromethane " 1780 --- 498 " " -- " 89.4% (75-120) -- -- " 1,1-Dichloroethane " 2100 --- 99.6 " " -- " 106% (80-120) -- -- " 1,2-Dichloroethane " 2000 --- 99.6 " " -- " 100% " -- -- " 1,1-Dichloroethene " 2040 --- 99.6 " " -- " 102% (66.1-125) -- -- " cis-1,2-Dichloroethene " 2130 --- 99.6 " " -- " 107% (75-125) -- -- "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 59 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0044-BS1) Extracted: 10/02/10 07:15 trans-1,2-Dichloroethene EPA 8260B 2060 --- 99.6 ug/kg wet 1x -- 1990 103% (75-125) -- -- 10/02/10 10:50 1,2-Dichloropropane " 2140 --- 99.6 " " -- " 107% (82-125) -- -- " 1,3-Dichloropropane " 2050 --- 99.6 " " -- " 103% (75-129) -- -- " 2,2-Dichloropropane " 1950 --- 99.6 " " -- " 97.9% (72-132) -- -- " 1,1-Dichloropropene " 2140 --- 99.6 " " -- " 107% (79-126) -- -- " cis-1,3-Dichloropropene " 1940 --- 99.6 " " -- " 97.3% (80-126) -- -- " trans-1,3-Dichloropropene " 1880 --- 99.6 " " -- " 94.3% (67-146) -- -- " Ethylbenzene " 2020 --- 99.6 " " -- " 102% (82-123) -- -- " Hexachlorobutadiene " 2080 --- 398 " " -- " 104% (80-152) -- -- " 2-Hexanone " 10000 --- 996 " " -- 9960 100% (57-120) -- -- " Isopropylbenzene " 2000 --- 199 " " -- 1990 100% (82-128) -- -- " p-Isopropyltoluene " 2020 --- 199 " " -- " 102% (80-120) -- -- " 4-Methyl-2-pentanone " 10300 --- 498 " " -- 9960 103% (52-120) -- -- " Methyl tert-butyl ether " 2040 --- 99.6 " " -- 1990 103% (75-125) -- -- " Methylene chloride " 2070 --- 498 " " -- " 104% " -- -- " Naphthalene " 1790 --- 199 " " -- " 90.1% (80-130) -- -- " n-Propylbenzene " 2060 --- 99.6 " " -- " 103% (80-120) -- -- " Styrene " 2060 --- 99.6 " " -- " 103% (80-123) -- -- " 1,1,1,2-Tetrachloroethane " 1900 --- 99.6 " " -- " 95.6% (83-128) -- -- " 1,1,2,2-Tetrachloroethane " 1800 --- 99.6 " " -- " 90.3% (72-135) -- -- " Tetrachloroethene " 2110 --- 99.6 " " -- " 106% (80-124) -- -- " Toluene " 2100 --- 99.6 " " -- " 106% (80-125) -- -- " 1,2,3-Trichlorobenzene " 1900 --- 99.6 " " -- " 95.4% (78-143) -- -- " 1,2,4-Trichlorobenzene " 1910 --- 99.6 " " -- " 95.8% (83-149) -- -- " 1,1,1-Trichloroethane " 2110 --- 99.6 " " -- " 106% (80-124) -- -- " 1,1,2-Trichloroethane " 2070 --- 99.6 " " -- " 104% (80-125) -- -- " Trichloroethene " 2040 --- 99.6 " " -- " 103% (76-125) -- -- " Trichlorofluoromethane " 2060 --- 99.6 " " -- " 103% (56-147) -- -- " 1,2,3-Trichloropropane " 1810 --- 99.6 " " -- " 90.8% (67-126) -- -- " 1,2,4-Trimethylbenzene " 2020 --- 99.6 " " -- " 102% (81-134) -- -- " 1,3,5-Trimethylbenzene " 2040 --- 99.6 " " -- " 103% (82-136) -- -- " Vinyl chloride " 584 --- 99.6 " " -- " 29.3% (76-137) -- -- " L2 o-Xylene " 1950 --- 99.6 " " -- " 98.1% (80-126) -- -- " m,p-Xylene " 3960 --- 199 " " -- 3980 99.3% (80-120) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 10:50 1,2-DCA-d4 97.4% 75-125% " " Toluene-d8 105% 75-125% " " 4-BFB 101% 75-125% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 60 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10J0044-MS1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Acetone EPA 8260B 14200 --- 3530 ug/kg dry 1x ND 12000 118% (60-143) -- -- 10/02/10 11:19 Benzene " 2910 --- 28.3 " " ND 2400 121% (68.5-150) -- -- " Bromobenzene " 2570 --- 141 " " ND " 107% (70-130) -- -- " Bromochloromethane " 2880 --- 141 " " ND " 120% (80-129) -- -- " Bromodichloromethane " 2770 --- 141 " " ND " 115% (80-135) -- -- " Bromoform " 1880 --- 141 " " ND " 78.4% (70-130) -- -- " Bromomethane " 2900 --- 706 " " ND " 121% " -- -- " 2-Butanone (MEK) " 13400 --- 1410 " " ND 12000 112% (72-143) -- -- " n-Butylbenzene " 2860 --- 706 " " ND 2400 119% (71-140) -- -- " sec-Butylbenzene " 2830 --- 141 " " ND " 118% (70-134) -- -- " tert-Butylbenzene " 2700 --- 141 " " ND " 112% (80-133) -- -- " Carbon disulfide " 5810 --- 1410 " " ND 4810 121% (70-130) -- -- " Carbon tetrachloride " 2730 --- 141 " " ND 2400 114% (72-126) -- -- " Chlorobenzene " 2770 --- 141 " " ND " 115% (65.9-150) -- -- " Chloroethane " 2900 --- 141 " " ND " 121% (70-130) -- -- " Chloroform " 2950 --- 141 " " ND " 123% (80-124) -- -- " Chloromethane " 2280 --- 706 " " ND " 95.0% (40-150) -- -- " 2-Chlorotoluene " 2690 --- 141 " " ND " 112% (79-124) -- -- " 4-Chlorotoluene " 2720 --- 141 " " ND " 113% (70-130) -- -- " 1,2-Dibromo-3-chloropropane " 2230 --- 706 " " ND " 92.8% (59-143) -- -- " Dibromochloromethane " 2210 --- 141 " " ND " 91.9% (80-129) -- -- " 1,2-Dibromoethane " 2700 --- 141 " " ND " 112% (80-128) -- -- " Dibromomethane " 2830 --- 141 " " ND " 118% (75-125) -- -- " 1,2-Dichlorobenzene " 2560 --- 141 " " ND " 107% (80-120) -- -- " 1,3-Dichlorobenzene " 2640 --- 141 " " ND " 110% (80-127) -- -- " 1,4-Dichlorobenzene " 2530 --- 141 " " ND " 105% (80-120) -- -- " Dichlorodifluoromethane " 2550 --- 706 " " ND " 106% (63-134) -- -- " 1,1-Dichloroethane " 2950 --- 141 " " ND " 123% (80-123) -- -- " 1,2-Dichloroethane " 2760 --- 141 " " ND " 115% (75-120) -- -- " 1,1-Dichloroethene " 2800 --- 141 " " ND " 117% (55.8-150) -- -- " cis-1,2-Dichloroethene " 2950 --- 141 " " ND " 123% (75-117) -- -- " M7 trans-1,2-Dichloroethene " 2850 --- 141 " " ND " 119% (70-130) -- -- " 1,2-Dichloropropane " 2930 --- 141 " " ND " 122% (80-128) -- -- " 1,3-Dichloropropane " 2700 --- 141 " " ND " 112% (76-130) -- -- " 2,2-Dichloropropane " 2710 --- 141 " " ND " 113% (70-130) -- -- " 1,1-Dichloropropene " 2940 --- 141 " " ND " 122% (79-124) -- -- " cis-1,3-Dichloropropene " 2600 --- 141 " " ND " 108% (80-130) -- -- " trans-1,3-Dichloropropene " 2440 --- 141 " " ND " 102% (71-144) -- -- " Ethylbenzene " 2830 --- 141 " " ND " 118% (80-124) -- -- "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 61 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10J0044-MS1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Hexachlorobutadiene EPA 8260B 2950 --- 565 ug/kg dry 1x ND 2400 123% (46-157) -- -- 10/02/10 11:19 2-Hexanone " 11300 --- 1410 " " ND 12000 93.9% (63-152) -- -- " Isopropylbenzene " 2770 --- 283 " " ND 2400 115% (80-129) -- -- " p-Isopropyltoluene " 2820 --- 283 " " ND " 118% (70-138) -- -- " 4-Methyl-2-pentanone " 12300 --- 706 " " ND 12000 102% (59-151) -- -- " Methyl tert-butyl ether " 2830 --- 141 " " ND 2400 118% (70-130) -- -- " Methylene chloride " 2860 --- 706 " " ND " 119% (70-120) -- -- " Naphthalene " 2600 --- 283 " " ND " 108% (70-130) -- -- " n-Propylbenzene " 2890 --- 141 " " ND " 120% " -- -- " Styrene " 2840 --- 141 " " ND " 118% (86-122) -- -- " 1,1,1,2-Tetrachloroethane " 2430 --- 141 " " ND " 101% (80-129) -- -- " 1,1,2,2-Tetrachloroethane " 2110 --- 141 " " ND " 88.0% (70-130) -- -- " Tetrachloroethene " 2900 --- 141 " " ND " 121% (75-137) -- -- " Toluene " 2870 --- 141 " " ND " 120% (70.3-150) -- -- " 1,2,3-Trichlorobenzene " 2730 --- 141 " " ND " 114% (70-130) -- -- " 1,2,4-Trichlorobenzene " 2770 --- 141 " " ND " 115% (71-148) -- -- " 1,1,1-Trichloroethane " 2880 --- 141 " " ND " 120% (80-127) -- -- " 1,1,2-Trichloroethane " 2670 --- 141 " " ND " 111% (80-130) -- -- " Trichloroethene " 2830 --- 141 " " ND " 118% (65.5-150) -- -- " Trichlorofluoromethane " 2880 --- 141 " " ND " 120% (70-130) -- -- " 1,2,3-Trichloropropane " 2200 --- 141 " " ND " 91.4% " -- -- " 1,2,4-Trimethylbenzene " 2810 --- 141 " " ND " 117% " -- -- " 1,3,5-Trimethylbenzene " 2860 --- 141 " " ND " 119% (73-141) -- -- " Vinyl chloride " 711 --- 141 " " ND " 29.6% (70-130) -- -- " A-01 o-Xylene " 2740 --- 141 " " ND " 114% " -- -- " m,p-Xylene " 5590 --- 283 " " ND 4810 116% (76-134) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 11:19 1,2-DCA-d4 96.4% 75-125% " " Toluene-d8 104% 75-125% " " 4-BFB 98.2% 75-125% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 62 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike Dup (10J0044-MSD1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Acetone EPA 8260B 14000 --- 3530 ug/kg dry 1x ND 12000 117% (60-143) 1.23% (25) 10/02/10 11:47 Benzene " 2850 --- 28.3 " " ND 2400 119% (68.5-150) 2.11% " " Bromobenzene " 2510 --- 141 " " ND " 104% (70-130) 2.34% " " Bromochloromethane " 2830 --- 141 " " ND " 118% (80-129) 2.08% " " Bromodichloromethane " 2680 --- 141 " " ND " 112% (80-135) 3.21% " " Bromoform " 1790 --- 141 " " ND " 74.6% (70-130) 4.99% " " Bromomethane " 2810 --- 706 " " ND " 117% " 3.17% " " 2-Butanone (MEK) " 13400 --- 1410 " " ND 12000 112% (72-143) 0.0526% " " n-Butylbenzene " 2850 --- 706 " " ND 2400 119% (71-140) 0.395% " " sec-Butylbenzene " 2830 --- 141 " " ND " 118% (70-134) 0.100% " " tert-Butylbenzene " 2680 --- 141 " " ND " 112% (80-133) 0.473% " " Carbon disulfide " 6100 --- 1410 " " ND 4810 127% (70-130) 4.91% " " Carbon tetrachloride " 2610 --- 141 " " ND 2400 109% (72-126) 4.71% " " Chlorobenzene " 2710 --- 141 " " ND " 113% (65.9-150) 2.42% " " Chloroethane " 2800 --- 141 " " ND " 117% (70-130) 3.32% " " Chloroform " 2840 --- 141 " " ND " 118% (80-124) 3.56% " " Chloromethane " 2200 --- 706 " " ND " 91.7% (40-150) 3.53% " " 2-Chlorotoluene " 2660 --- 141 " " ND " 111% (79-124) 1.00% " " 4-Chlorotoluene " 2700 --- 141 " " ND " 112% (70-130) 0.938% " " 1,2-Dibromo-3-chloropropane " 2130 --- 706 " " ND " 88.7% (59-143) 4.53% " " Dibromochloromethane " 2110 --- 141 " " ND " 87.9% (80-129) 4.45% " " 1,2-Dibromoethane " 2600 --- 141 " " ND " 108% (80-128) 3.79% " " Dibromomethane " 2760 --- 141 " " ND " 115% (75-125) 2.37% " " 1,2-Dichlorobenzene " 2520 --- 141 " " ND " 105% (80-120) 1.72% " " 1,3-Dichlorobenzene " 2610 --- 141 " " ND " 108% (80-127) 1.45% " " 1,4-Dichlorobenzene " 2510 --- 141 " " ND " 105% (80-120) 0.728% " " Dichlorodifluoromethane " 2430 --- 706 " " ND " 101% (63-134) 4.71% " " 1,1-Dichloroethane " 2880 --- 141 " " ND " 120% (80-123) 2.67% " " 1,2-Dichloroethane " 2690 --- 141 " " ND " 112% (75-120) 2.54% " " 1,1-Dichloroethene " 2760 --- 141 " " ND " 115% (55.8-150) 1.52% " " cis-1,2-Dichloroethene " 2880 --- 141 " " ND " 120% (75-117) 2.28% " " M7 trans-1,2-Dichloroethene " 2790 --- 141 " " ND " 116% (70-130) 2.25% " " 1,2-Dichloropropane " 2870 --- 141 " " ND " 119% (80-128) 1.95% " " 1,3-Dichloropropane " 2620 --- 141 " " ND " 109% (76-130) 2.92% " " 2,2-Dichloropropane " 2590 --- 141 " " ND " 108% (70-130) 4.75% " " 1,1-Dichloropropene " 2880 --- 141 " " ND " 120% (79-124) 1.99% " " cis-1,3-Dichloropropene " 2490 --- 141 " " ND " 103% (80-130) 4.50% " " trans-1,3-Dichloropropene " 2360 --- 141 " " ND " 98.0% (71-144) 3.59% " " Ethylbenzene " 2810 --- 141 " " ND " 117% (80-124) 0.902% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 63 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0044 Soil Preparation Method: EPA 5035A

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike Dup (10J0044-MSD1) QC Source: PTI0812-05 Extracted: 10/02/10 07:15 Hexachlorobutadiene EPA 8260B 2900 --- 565 ug/kg dry 1x ND 2400 121% (46-157) 1.64% (25) 10/02/10 11:47 2-Hexanone " 11300 --- 1410 " " ND 12000 94.0% (63-152) 0.113% " " Isopropylbenzene " 2740 --- 283 " " ND 2400 114% (80-129) 0.975% " " p-Isopropyltoluene " 2810 --- 283 " " ND " 117% (70-138) 0.501% " " 4-Methyl-2-pentanone " 12300 --- 706 " " ND 12000 102% (59-151) 0.196% " " Methyl tert-butyl ether " 2730 --- 141 " " ND 2400 114% (70-130) 3.51% " " Methylene chloride " 2800 --- 706 " " ND " 117% (70-120) 2.05% " " Naphthalene " 2530 --- 283 " " ND " 105% (70-130) 2.75% " " n-Propylbenzene " 2840 --- 141 " " ND " 118% " 1.72% " " Styrene " 2770 --- 141 " " ND " 115% (86-122) 2.17% " " 1,1,1,2-Tetrachloroethane " 2310 --- 141 " " ND " 96.2% (80-129) 4.89% " " 1,1,2,2-Tetrachloroethane " 2090 --- 141 " " ND " 86.9% (70-130) 1.28% " " Tetrachloroethene " 2820 --- 141 " " ND " 117% (75-137) 2.92% " " Toluene " 2780 --- 141 " " ND " 116% (70.3-150) 3.45% " " 1,2,3-Trichlorobenzene " 2740 --- 141 " " ND " 114% (70-130) 0.413% " " 1,2,4-Trichlorobenzene " 2710 --- 141 " " ND " 113% (71-148) 2.11% " " 1,1,1-Trichloroethane " 2770 --- 141 " " ND " 115% (80-127) 3.80% " " 1,1,2-Trichloroethane " 2580 --- 141 " " ND " 107% (80-130) 3.55% " " Trichloroethene " 2770 --- 141 " " ND " 115% (65.5-150) 2.07% " " Trichlorofluoromethane " 2800 --- 141 " " ND " 117% (70-130) 2.84% " " 1,2,3-Trichloropropane " 2150 --- 141 " " ND " 89.7% " 1.88% " " 1,2,4-Trimethylbenzene " 2780 --- 141 " " ND " 116% " 0.960% " " 1,3,5-Trimethylbenzene " 2830 --- 141 " " ND " 118% (73-141) 1.19% " " Vinyl chloride " 677 --- 141 " " ND " 28.2% (70-130) 4.89% " " A-01 o-Xylene " 2700 --- 141 " " ND " 112% " 1.56% " " m,p-Xylene " 5500 --- 283 " " ND 4810 115% (76-134) 1.58% " "

Surrogate(s): Dibromofluoromethane Recovery: 104% Limits: 75-125% 0.01x 10/02/10 11:47 1,2-DCA-d4 95.0% 75-125% " " Toluene-d8 104% 75-125% " " 4-BFB 100% 75-125% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 64 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0161 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0161-BLK1) Extracted: 10/06/10 08:51 Acenaphthene EPA 8270C ND --- 0.329 mg/kg wet 1x ------10/07/10 12:39 4-Chloro-3-methylphenol " ND --- 0.329 " " ------" 2-Chlorophenol " ND --- 0.329 " " ------" Acenaphthylene " ND --- 0.329 " " ------" Anthracene " ND --- 0.329 " " ------" 2,4-Dichlorophenol " ND --- 0.329 " " ------" 2,6-Dichlorophenol " ND --- 0.329 " " ------" Benzo (a) anthracene " ND --- 0.329 " " ------" Benzo (a) pyrene " ND --- 0.329 " " ------" 2,4-Dimethylphenol " ND --- 0.996 " " ------" 4,6-Dinitro-2-methylphenol " ND --- 0.996 " " ------" Benzo (b) fluoranthene " ND --- 0.329 " " ------" Benzo (ghi) perylene " ND --- 0.329 " " ------" 2,4-Dinitrophenol " ND --- 1.99 " " ------" Benzo (k) fluoranthene " ND --- 0.329 " " ------" 2-Methylphenol " ND --- 0.329 " " ------" Benzoic Acid " ND --- 0.996 " " ------" 3-,4-Methylphenol " ND --- 0.329 " " ------" Benzyl alcohol " ND --- 0.996 " " ------" 2-Nitrophenol " ND --- 0.329 " " ------" 4-Bromophenyl phenyl ether " ND --- 0.329 " " ------" 4-Nitrophenol " ND --- 0.996 " " ------" Butyl benzyl phthalate " ND --- 0.329 " " ------" Pentachlorophenol " ND --- 0.996 " " ------" 4-Chloro-3-methylphenol " ND --- 0.329 " " ------" Phenol " ND --- 0.329 " " ------" 4-Chloroaniline " ND --- 1.99 " " ------" 2,4,5-Trichlorophenol " ND --- 0.329 " " ------" Bis(2-chloroethoxy)methane " ND --- 0.329 " " ------" 2,4,6-Trichlorophenol " ND --- 0.329 " " ------" 2,3,4,6-Tetrachlorophenol " ND --- 0.996 " " ------" Bis(2-chloroethyl)ether " ND --- 0.329 " " ------" Bis(2-chloroisopropyl)ether " ND --- 0.329 " " ------" 2-Chloronaphthalene " ND --- 0.329 " " ------" 2-Chlorophenol " ND --- 0.329 " " ------" 4-Chlorophenyl phenyl ether " ND --- 0.329 " " ------" Chrysene " ND --- 0.329 " " ------" Di-n-butyl phthalate " ND --- 0.996 " " ------" Di-n-octyl phthalate " ND --- 0.329 " " ------"

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 65 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0161 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0161-BLK1) Extracted: 10/06/10 08:51 Dibenzo (a,h) anthracene EPA 8270C ND --- 0.329 mg/kg wet 1x ------10/07/10 12:39 Dibenzofuran " ND --- 0.329 " " ------" 1,2-Dichlorobenzene " ND --- 0.996 " " ------" 1,3-Dichlorobenzene " ND --- 0.996 " " ------" 1,4-Dichlorobenzene " ND --- 0.996 " " ------" 3,3´-Dichlorobenzidine " ND --- 0.996 " " ------" 2,4-Dichlorophenol " ND --- 0.329 " " ------" Diethyl phthalate " ND --- 0.329 " " ------" 2,4-Dimethylphenol " ND --- 0.996 " " ------" Dimethyl phthalate " ND --- 0.329 " " ------" 4,6-Dinitro-2-methylphenol " ND --- 0.996 " " ------" 2,4-Dinitrophenol " ND --- 1.99 " " ------" 2,4-Dinitrotoluene " ND --- 0.498 " " ------" 2,6-Dinitrotoluene " ND --- 0.498 " " ------" Bis(2-ethylhexyl)phthalate " ND --- 1.99 " " ------" Fluoranthene " ND --- 0.329 " " ------" Fluorene " ND --- 0.329 " " ------" Hexachlorobenzene " ND --- 0.329 " " ------" Hexachlorobutadiene " ND --- 0.996 " " ------" Hexachlorocyclopentadiene " ND --- 0.996 " " ------" Hexachloroethane " ND --- 0.996 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 0.329 " " ------" Isophorone " ND --- 0.329 " " ------" 2-Methylnaphthalene " ND --- 0.329 " " ------" 2-Methylphenol " ND --- 0.329 " " ------" 3-,4-Methylphenol " ND --- 0.329 " " ------" Naphthalene " ND --- 0.329 " " ------" 2-Nitroaniline " ND --- 0.329 " " ------" 3-Nitroaniline " ND --- 0.996 " " ------" 4-Nitroaniline " ND --- 0.329 " " ------" Nitrobenzene " ND --- 0.329 " " ------" 2-Nitrophenol " ND --- 0.329 " " ------" 4-Nitrophenol " ND --- 0.996 " " ------" N-Nitrosodi-n-propylamine " ND --- 0.329 " " ------" N-Nitrosodiphenylamine " ND --- 0.329 " " ------" Pentachlorophenol " ND --- 0.996 " " ------" Phenanthrene " ND --- 0.329 " " ------" Phenol " ND --- 0.329 " " ------" Pyrene " ND --- 0.329 " " ------"

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 66 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0161 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0161-BLK1) Extracted: 10/06/10 08:51 1,2,4-Trichlorobenzene EPA 8270C ND --- 0.996 mg/kg wet 1x ------10/07/10 12:39 2,4,5-Trichlorophenol " ND --- 0.329 " " ------" 2,4,6-Trichlorophenol " ND --- 0.329 " " ------" 2-Fluorophenol 85.9% 28-119% " " Surrogate(s): Phenol-d6 Recovery: 86.2% Limits: 35-125% " 10/07/10 12:39 2,4,6-Tribromophenol 81.7% 30-127% " " 2-Fluorobiphenyl 82.3% 30-126% " " Surrogate(s): 2-Fluorophenol Recovery: 85.9% Limits: 28-119% " 10/07/10 12:39 Nitrobenzene-d5 82.6% 26-117% " " Phenol-d6 86.2% 35-125% " " p-Terphenyl-d14 93.2% 26-143% " " 2,4,6-Tribromophenol 81.7% 30-127% " "

LCS (10J0161-BS1) Extracted: 10/06/10 08:51 Acenaphthene EPA 8270C 1.34 --- 0.327 mg/kg wet 1x -- 1.65 81.1% (46-120) -- -- 10/07/10 11:54 4-Chloro-3-methylphenol " 1.45 --- 0.327 " " -- " 88.0% (36-138) -- -- " 2-Chlorophenol " 1.34 --- 0.327 " " -- " 81.1% (18-137) -- -- " 4-Nitrophenol " 1.52 --- 0.990 " " -- " 92.1% (40-148) -- -- " Pentachlorophenol " 1.35 --- 0.990 " " -- " 81.8% (22-129) -- -- " 4-Chloro-3-methylphenol " 1.45 --- 0.327 " " -- " 88.0% (36-138) -- -- " Phenol " 1.37 --- 0.327 " " -- " 82.8% (37-122) -- -- " 2-Chlorophenol " 1.34 --- 0.327 " " -- " 81.1% (18-137) -- -- " 1,4-Dichlorobenzene " 1.29 --- 0.990 " " -- " 78.1% (7-135) -- -- " 2,4-Dinitrotoluene " 1.47 --- 0.495 " " -- " 88.9% (49-125) -- -- " 4-Nitrophenol " 1.52 --- 0.990 " " -- " 92.1% (40-148) -- -- " N-Nitrosodi-n-propylamine " 1.32 --- 0.327 " " -- " 79.8% (20-138) -- -- " Pentachlorophenol " 1.35 --- 0.990 " " -- " 81.8% (22-129) -- -- " Phenol " 1.37 --- 0.327 " " -- " 82.8% (37-122) -- -- " Pyrene " 1.55 --- 0.327 " " -- " 93.6% (26-143) -- -- " 1,2,4-Trichlorobenzene " 1.24 --- 0.990 " " -- " 75.4% (25-129) -- -- " 2-Fluorophenol 77.6% 28-119% " " Surrogate(s): Phenol-d6 Recovery: 78.8% Limits: 35-125% " 10/07/10 11:54 2,4,6-Tribromophenol 89.4% 30-127% " " 2-Fluorobiphenyl 76.0% 30-126% " " Surrogate(s): 2-Fluorophenol Recovery: 77.6% Limits: 28-119% " 10/07/10 11:54 Nitrobenzene-d5 77.5% 26-117% " " Phenol-d6 78.8% 35-125% " " p-Terphenyl-d14 94.2% 26-143% " " 2,4,6-Tribromophenol 89.4% 30-127% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 67 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0161 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10J0161-MS1) QC Source: PTI0772-01 Extracted: 10/06/10 08:51 4-Chloro-3-methylphenol EPA 8270C 1.75 --- 1.41 mg/kg dry 2x ND 1.78 98.3% (26-150) -- -- 10/07/10 20:51 Acenaphthene " 1.83 --- 1.41 " " ND " 103% " -- -- " 2-Chlorophenol " 1.71 --- 1.41 " " ND " 95.8% (8-150) -- -- " 4-Nitrophenol " ND --- 4.28 " " ND " NR (20-175) -- -- " M4 Pentachlorophenol " ND --- 4.28 " " ND " NR (12-150) -- -- " M4 Phenol " 1.74 --- 1.41 " " ND " 97.4% (17-150) -- -- " 4-Chloro-3-methylphenol " 1.75 --- 1.41 " " ND " 98.3% (26-150) -- -- " 2-Chlorophenol " 1.71 --- 1.41 " " ND " 95.8% (8-150) -- -- " 1,4-Dichlorobenzene " ND --- 4.28 " " ND " NR (4-150) -- -- " M4 2,4-Dinitrotoluene " ND --- 2.14 " " ND " NR (32-150) -- -- " M4 4-Nitrophenol " ND --- 4.28 " " ND " NR (20-175) -- -- " M4 N-Nitrosodi-n-propylamine " 1.67 --- 1.41 " " ND " 93.4% (10-150) -- -- " Pentachlorophenol " ND --- 4.28 " " ND " NR (12-150) -- -- " M4 Phenol " 1.74 --- 1.41 " " ND " 97.4% (17-150) -- -- " Pyrene " 2.24 --- 1.41 " " 0.969 " 71.4% (16-175) -- -- " 1,2,4-Trichlorobenzene " ND --- 4.28 " " ND " NR (18-150) -- -- " M4 2-Fluorophenol 95.7% 28-119% " " Surrogate(s): Phenol-d6 Recovery: 96.5% Limits: 35-125% " 10/07/10 20:51 2,4,6-Tribromophenol 86.5% 30-127% " " 2-Fluorobiphenyl 102% 30-126% " " Surrogate(s): 2-Fluorophenol Recovery: 95.7% Limits: 28-119% " 10/07/10 20:51 Nitrobenzene-d5 92.8% 26-117% " " Phenol-d6 96.5% 35-125% " " p-Terphenyl-d14 96.6% 26-143% " " 2,4,6-Tribromophenol 86.5% 30-127% " "

Matrix Spike Dup (10J0161-MSD1) QC Source: PTI0772-01 Extracted: 10/06/10 08:51 4-Chloro-3-methylphenol EPA 8270C 1.78 --- 1.41 mg/kg dry 2x ND 1.79 99.4% (26-150) 1.22% (60) 10/07/10 21:35 Acenaphthene " 1.80 --- 1.41 " " ND " 101% " 1.64% " " 2-Chlorophenol " 1.72 --- 1.41 " " ND " 96.2% (8-150) 0.583% " " 4-Nitrophenol " ND --- 4.29 " " ND " NR (20-175) -- " " M4 Pentachlorophenol " ND --- 4.29 " " ND " NR (12-150) -- " " M4 Phenol " 1.72 --- 1.41 " " ND " 96.3% (17-150) 0.990% " " 4-Chloro-3-methylphenol " 1.78 --- 1.41 " " ND " 99.4% (26-150) 1.22% " " 2-Chlorophenol " 1.72 --- 1.41 " " ND " 96.2% (8-150) 0.583% " " 1,4-Dichlorobenzene " ND --- 4.29 " " ND " NR (4-150) -- " " M4 2,4-Dinitrotoluene " ND --- 2.14 " " ND " NR (32-150) -- " " M4 4-Nitrophenol " ND --- 4.29 " " ND " NR (20-175) -- " " M4 N-Nitrosodi-n-propylamine " 1.64 --- 1.41 " " ND " 91.6% (10-150) 1.82% " " Pentachlorophenol " ND --- 4.29 " " ND " NR (12-150) -- " " M4

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 68 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Semivolatile Organic Compounds per EPA Method 8270C - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0161 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike Dup (10J0161-MSD1) QC Source: PTI0772-01 Extracted: 10/06/10 08:51 Phenol EPA 8270C 1.72 --- 1.41 mg/kg dry 2x ND 1.79 96.3% (17-150) 0.990% (60) 10/07/10 21:35 Pyrene " 2.61 --- 1.41 " " 0.969 " 92.0% (16-175) 15.3% " " 1,2,4-Trichlorobenzene " ND --- 4.29 " " ND " NR (18-150) -- " " M4 2-Fluorophenol 90.3% 28-119% " " Surrogate(s): Phenol-d6 Recovery: 91.0% Limits: 35-125% " 10/07/10 21:35 2,4,6-Tribromophenol 78.8% 30-127% " " 2-Fluorobiphenyl 96.9% 30-126% " " Surrogate(s): 2-Fluorophenol Recovery: 90.3% Limits: 28-119% " 10/07/10 21:35 Nitrobenzene-d5 86.2% 26-117% " " Phenol-d6 91.0% 35-125% " " p-Terphenyl-d14 98.1% 26-143% " " 2,4,6-Tribromophenol 78.8% 30-127% " "

Christina Woodcock For Darrell Auvil, Project Manager

www.testamericainc.com Page 69 of 79 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0884 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10I0884-BLK1) Extracted: 09/29/10 11:15 1-Methylnaphthalene EPA 8270m ND --- 13.2 ug/kg wet 1x ------09/30/10 15:36 2-Methylnaphthalene " ND --- 13.2 " " ------" Acenaphthene " ND --- 13.2 " " ------" Acenaphthylene " ND --- 13.2 " " ------" Anthracene " ND --- 13.2 " " ------" Benzo (a) anthracene " ND --- 13.2 " " ------" Benzo (a) pyrene " ND --- 13.2 " " ------" Benzo (b) fluoranthene " ND --- 13.2 " " ------" Benzo (ghi) perylene " ND --- 13.2 " " ------" Benzo (k) fluoranthene " ND --- 13.2 " " ------" Chrysene " ND --- 13.2 " " ------" Dibenzo (a,h) anthracene " ND --- 13.2 " " ------" Fluoranthene " ND --- 13.2 " " ------" Fluorene " ND --- 13.2 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 13.2 " " ------" Naphthalene " ND --- 13.2 " " ------" Phenanthrene " ND --- 13.2 " " ------" Pyrene " ND --- 13.2 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 71.4% Limits: 24-125% " 09/30/10 15:36 Pyrene-d10 75.1% 41-141% " " Benzo (a) pyrene-d12 73.3% 38-143% " "

LCS (10I0884-BS1) Extracted: 09/29/10 11:15 Acenaphthene EPA 8270m 125 --- 13.4 ug/kg wet 1x -- 167 75.1% (33-139) -- -- 09/30/10 15:06 Benzo (a) pyrene " 125 --- 13.4 " " -- " 74.9% (45-149) -- -- " Pyrene " 128 --- 13.4 " " -- " 76.8% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 77.3% Limits: 24-125% " 09/30/10 15:06 Pyrene-d10 79.6% 41-141% " " Benzo (a) pyrene-d12 77.1% 38-143% " "

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QC Batch: 10I0884 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10I0884-MS1) QC Source: PTI0908-01 Extracted: 09/29/10 11:15 Acenaphthene EPA 8270m 108 --- 14.3 ug/kg dry 1x ND 177 60.8% (33-139) -- -- 09/30/10 20:09 Benzo (a) pyrene " 108 --- 14.3 " " ND " 60.7% (45-149) -- -- " Pyrene " 111 --- 14.3 " " ND " 62.6% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 63.1% Limits: 24-125% " 09/30/10 20:09 Pyrene-d10 65.2% 41-141% " " Benzo (a) pyrene-d12 64.0% 38-143% " "

Matrix Spike Dup (10I0884-MSD1) QC Source: PTI0908-01 Extracted: 09/29/10 11:15 Acenaphthene EPA 8270m 111 --- 14.2 ug/kg dry 1x ND 176 63.2% (33-139) 3.27% (40) 09/30/10 20:39 Benzo (a) pyrene " 110 --- 14.2 " " ND " 62.5% (45-149) 2.49% " " Pyrene " 118 --- 14.2 " " ND " 66.8% (39-138) 5.89% " "

Surrogate(s): Fluorene-d10 Recovery: 71.9% Limits: 24-125% " 09/30/10 20:39 Pyrene-d10 74.6% 41-141% " " Benzo (a) pyrene-d12 70.1% 38-143% " "

QC Batch: 10J0138 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0138-BLK1) Extracted: 10/05/10 19:50 1-Methylnaphthalene EPA 8270m ND --- 13.4 ug/kg wet 1x ------10/06/10 18:19 2-Methylnaphthalene " ND --- 13.4 " " ------" Acenaphthene " ND --- 13.4 " " ------" Acenaphthylene " ND --- 13.4 " " ------" Anthracene " ND --- 13.4 " " ------" Benzo (a) anthracene " ND --- 13.4 " " ------" Benzo (a) pyrene " ND --- 13.4 " " ------" Benzo (b) fluoranthene " ND --- 13.4 " " ------" Benzo (ghi) perylene " ND --- 13.4 " " ------" Benzo (k) fluoranthene " ND --- 13.4 " " ------" Chrysene " ND --- 13.4 " " ------" Dibenzo (a,h) anthracene " ND --- 13.4 " " ------" Fluoranthene " ND --- 13.4 " " ------" Fluorene " ND --- 13.4 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 13.4 " " ------" Naphthalene " ND --- 13.4 " " ------" Phenanthrene " ND --- 13.4 " " ------" Pyrene " ND --- 13.4 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 86.3% Limits: 24-125% " 10/06/10 18:19

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QC Batch: 10J0138 Soil Preparation Method: EPA 3550

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0138-BLK1) Extracted: 10/05/10 19:50 Surrogate(s): Pyrene-d10 Recovery: 86.4% Limits: 41-141% 1x 10/06/10 18:19 Benzo (a) pyrene-d12 91.7% 38-143% " "

LCS (10J0138-BS1) Extracted: 10/05/10 19:50 Acenaphthene EPA 8270m 131 --- 13.4 ug/kg wet 1x -- 167 78.4% (33-139) -- -- 10/06/10 17:49 Benzo (a) pyrene " 138 --- 13.4 " " -- " 82.6% (45-149) -- -- " Pyrene " 137 --- 13.4 " " -- " 82.0% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 86.0% Limits: 24-125% " 10/06/10 17:49 Pyrene-d10 88.5% 41-141% " " Benzo (a) pyrene-d12 89.8% 38-143% " "

Matrix Spike (10J0138-MS1) QC Source: PTI0695-21RE1 Extracted: 10/05/10 19:50 Acenaphthene EPA 8270m 178 --- 134 ug/kg wet 10x ND 166 107% (33-139) -- -- 10/06/10 19:20 Benzo (a) pyrene " 171 --- 134 " " 34.2 " 82.6% (45-149) -- -- " Pyrene " 274 --- 134 " " 137 " 82.4% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 88.3% Limits: 24-125% " 10/06/10 19:20 Pyrene-d10 109% 41-141% " " Benzo (a) pyrene-d12 93.6% 38-143% " "

Matrix Spike Dup (10J0138-MSD1) QC Source: PTI0695-21RE1 Extracted: 10/05/10 19:50 Acenaphthene EPA 8270m 141 --- 133 ug/kg wet 10x ND 165 85.8% (33-139) 22.8% (40) 10/06/10 19:50 Benzo (a) pyrene " 145 --- 133 " " 34.2 " 66.9% (45-149) 17.0% " " Pyrene " 224 --- 133 " " 137 " 52.6% (39-138) 20.1% " "

Surrogate(s): Fluorene-d10 Recovery: 65.4% Limits: 24-125% " 10/06/10 19:50 Pyrene-d10 88.4% 41-141% " " Benzo (a) pyrene-d12 70.6% 38-143% " "

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Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0508 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0508-BLK1) Extracted: 10/15/10 11:30 1-Methylnaphthalene EPA 8270m ND --- 13.2 ug/kg wet 1x ------10/15/10 22:58 2-Methylnaphthalene " ND --- 13.2 " " ------" Acenaphthene " ND --- 13.2 " " ------" Acenaphthylene " ND --- 13.2 " " ------" Anthracene " ND --- 13.2 " " ------" Benzo (a) anthracene " ND --- 13.2 " " ------" Benzo (a) pyrene " ND --- 13.2 " " ------" Benzo (b) fluoranthene " ND --- 13.2 " " ------" Benzo (ghi) perylene " ND --- 13.2 " " ------" Benzo (k) fluoranthene " ND --- 13.2 " " ------" Chrysene " ND --- 13.2 " " ------" Dibenzo (a,h) anthracene " ND --- 13.2 " " ------" Fluoranthene " ND --- 13.2 " " ------" Fluorene " ND --- 13.2 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 13.2 " " ------" Naphthalene " ND --- 13.2 " " ------" Phenanthrene " ND --- 13.2 " " ------" Pyrene " ND --- 13.2 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 92.0% Limits: 24-125% " 10/15/10 22:58 Pyrene-d10 91.2% 41-141% " " Benzo (a) pyrene-d12 89.3% 38-143% " "

LCS (10J0508-BS1) Extracted: 10/15/10 11:30 Acenaphthene EPA 8270m 127 --- 13.4 ug/kg wet 1x -- 167 76.3% (33-139) -- -- 10/15/10 22:29 Benzo (a) pyrene " 134 --- 13.4 " " -- " 80.2% (45-149) -- -- " Pyrene " 129 --- 13.4 " " -- " 77.3% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 78.9% Limits: 24-125% " 10/15/10 22:29 Pyrene-d10 81.6% 41-141% " " Benzo (a) pyrene-d12 83.8% 38-143% " "

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QC Batch: 10J0508 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10J0508-MS1) QC Source: PTJ0332-01 Extracted: 10/15/10 11:30 Acenaphthene EPA 8270m 135 --- 13.3 ug/kg wet 1x ND 166 81.3% (33-139) -- -- 10/18/10 13:42 Benzo (a) pyrene " 138 --- 13.3 " " ND " 83.6% (45-149) -- -- " Pyrene " 137 --- 13.3 " " ND " 82.7% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 84.3% Limits: 24-125% " 10/18/10 13:42 Pyrene-d10 85.3% 41-141% " " Benzo (a) pyrene-d12 87.7% 38-143% " "

Matrix Spike Dup (10J0508-MSD1) QC Source: PTJ0332-01 Extracted: 10/15/10 11:30 Acenaphthene EPA 8270m 134 --- 13.3 ug/kg wet 1x ND 166 80.9% (33-139) 0.519% (40) 10/18/10 14:11 Benzo (a) pyrene " 144 --- 13.3 " " ND " 87.1% (45-149) 4.06% " " Pyrene " 147 --- 13.3 " " ND " 88.9% (39-138) 7.22% " "

Surrogate(s): Fluorene-d10 Recovery: 81.2% Limits: 24-125% " 10/18/10 14:11 Pyrene-d10 89.7% 41-141% " " Benzo (a) pyrene-d12 89.0% 38-143% " "

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Conventional Chemistry Parameters per APHA/EPA Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0017 Soil Preparation Method: General Preparation

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0017-BLK1) Extracted: 10/01/10 11:04 Cyanide (total) SM4500-CN- ND --- 0.0296 mg/kg wet 1x ------10/01/10 14:27 C,E

LCS (10J0017-BS1) Extracted: 10/01/10 11:04 Cyanide (total) SM4500-CN- 1.25 --- 0.0299 mg/kg wet 1x -- 1.20 104% (75-125) -- -- 10/01/10 14:27 C,E

Duplicate (10J0017-DUP1) QC Source: PTI0646-01 Extracted: 10/01/10 11:04 Cyanide (total) SM4500-CN- 0.180 --- 0.0414 mg/kg dry 1x 0.135 ------28.3% (40) 10/01/10 14:27 C,E

Matrix Spike (10J0017-MS1) QC Source: PTI0646-01 Extracted: 10/01/10 11:04 Cyanide (total) SM4500-CN- 1.81 --- 0.0403 mg/kg dry 1x 0.135 1.61 104% (75-125) -- -- 10/01/10 14:27 C,E

Matrix Spike Dup (10J0017-MSD1) QC Source: PTI0646-01 Extracted: 10/01/10 11:04 Cyanide (total) SM4500-CN- 1.54 --- 0.0365 mg/kg dry 1x 0.135 1.46 96.5% (75-125) 15.9% (40) 10/01/10 14:27 C,E

QC Batch: 10J0157 Soil Preparation Method: General Preparation

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0157-BLK1) Extracted: 10/06/10 08:22 Cyanide (total) SM4500-CN- ND --- 0.0301 mg/kg wet 1x ------10/06/10 12:03 C,E

LCS (10J0157-BS1) Extracted: 10/06/10 08:22 Cyanide (total) SM4500-CN- 1.18 --- 0.0306 mg/kg wet 1x -- 1.22 96.5% (75-125) -- -- 10/06/10 12:03 C,E

Duplicate (10J0157-DUP1) QC Source: PTI0861-05 Extracted: 10/06/10 08:22 Cyanide (total) SM4500-CN- 0.167 --- 0.0422 mg/kg dry 1x 0.139 ------18.2% (40) 10/06/10 12:03 C,E

Matrix Spike (10J0157-MS1) QC Source: PTI0861-05 Extracted: 10/06/10 08:22 Cyanide (total) SM4500-CN- 1.72 --- 0.0411 mg/kg dry 1x 0.139 1.65 95.8% (75-125) -- -- 10/06/10 12:03 C,E

Matrix Spike Dup (10J0157-MSD1) QC Source: PTI0861-05 Extracted: 10/06/10 08:22 Cyanide (total) SM4500-CN- 1.82 --- 0.0434 mg/kg dry 1x 0.139 1.74 96.8% (75-125) 5.76% (40) 10/06/10 12:03 C,E

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Percent Dry Weight (Solids) per ASTM D2216-80 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10I0817 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10I0817-DUP1) QC Source: PTI0861-01 Extracted: 09/28/10 07:42 % Solids ASTM 90.0 --- 0.0100 % by Weight 1x 90.4 ------0.435% (20) 09/29/10 07:10 D2216-80

Duplicate (10I0817-DUP2) QC Source: PTI0860-01 Extracted: 09/28/10 07:42 % Solids ASTM 77.7 --- 0.0100 % by Weight 1x 80.0 ------2.86% (20) 09/29/10 07:10 D2216-80

QC Batch: 10J0155 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0155-DUP1) QC Source: PTI0861-05 Extracted: 10/06/10 08:19 % Solids ASTM 71.7 --- 0.0100 % by Weight 1x 72.1 ------0.632% (20) 10/07/10 08:20 D2216-80

Duplicate (10J0155-DUP2) QC Source: PTI0861-07 Extracted: 10/06/10 08:19 % Solids ASTM 76.1 --- 0.0100 % by Weight 1x 76.2 ------0.147% (20) 10/07/10 08:20 D2216-80

QC Batch: 10J0454 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0454-DUP1) QC Source: PTI0861-02 Extracted: 10/15/10 08:09 % Solids ASTM 72.1 --- 0.0100 % by Weight 1x 71.4 ------1.06% (20) 10/19/10 07:20 D2216-80

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General Chemistry Parameters - Laboratory Quality Control Results TestAmerica Nashville

QC Batch: 10J1717 Soil Preparation Method: NO PREP

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J1717-BLK1) Extracted: 10/09/10 10:57 Flashpoint ASTM D92 >200 --- Deg F 1x ------10/09/10 13:30

LCS (10J1717-BS1) Extracted: 10/09/10 10:57 Flashpoint ASTM D92 115 --- Deg F 1x -- 110 105% (70-130) -- -- 10/09/10 13:30

Duplicate (10J1717-DUP1) QC Source: NTJ0356-11 Extracted: 10/09/10 10:57 Flashpoint ASTM D92 >200 --- Deg F 1x 0.00 ------(200) 10/09/10 13:30

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Notes and Definitions

Report Specific Notes: A-01 - The MS/MSD were below the accepted quality limits . CSTM - >200 H4 - Sample was extracted past holding time, but analyzed within analysis holding time. L2 - Laboratory Control Sample and/or Laboratory Control Sample Duplicate recovery was below acceptance limits. M4 - The sample required a dilution due to matrix interference. Because of this dilution, the matrix spike concentrations in the sample were reduced to a level where the recovery calculation does not provide useful information. See Blank Spike (LCS). M7 - The MS and/or MSD were above the acceptance limits. See Blank Spike (LCS). M8 - The MS and/or MSD were below the acceptance limits. See Blank Spike (LCS). pH - pH = 6 Q10 - Hydrocarbon pattern most closely resembles a blend of creosote or similar product. Q5 - Results in the diesel organics range are primarily due to overlap from a gasoline range product. Q6 - Results in the diesel organics range are primarily due to overlap from a heavy oil range product. Q9 - Hydrocarbon pattern most closely resembles weathered diesel. R2 - The RPD exceeded the acceptance limit. R4 - Due to the low levels of analyte in the sample, the duplicate RPD calculation does not provide useful information. RL3 - Reporting limit raised due to high concentrations of non-target analytes. RL7 - Sample required dilution due to high concentrations of target analyte.

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

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www.testamericainc.com Page 79 of 79 CERTIFICATION SUMMARY TestAmerica Portland

Method Matrix Oregon

1311/6020 Soil X ASTM D2216-80 Soil EPA 6020 Soil X EPA 7471A Soil X EPA 8082 Soil X EPA 8260B Soil X EPA 8260B Water X EPA 8270C Soil X EPA 8270m Soil X NW TPH-Gx Soil X NWTPH HCID Soil X NWTPH-Dx Soil X SM4500-CN-C,E Soil

Subcontracted Laboratories TestAmerica Nashville 2960 Foster Creighton Rd. - Nashville, TN 37204 Method Performed: ASTM D92 Samples: PTI0861-16

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ORELAP#: OR100021

October 26, 2010

Teresa Nowicki GRI Geotechnical & Environmental Consultants 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Beaverton, OR 97005

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 10/05/10 15:30. The following list is a summary of the Work Orders contained in this report, generated on 10/26/10 14:37.

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

Work Order Project ProjectNumber PTJ0111 Central City Concern 5144

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ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received GRI-5 PTJ0111-01 Water 10/04/10 17:00 10/05/10 15:30 GRI-9 PTJ0111-02 Water 10/04/10 16:20 10/05/10 15:30 GRI-10 PTJ0111-03 Water 10/04/10 17:15 10/05/10 15:30 GRI-11 PTJ0111-04 Water 10/04/10 16:45 10/05/10 15:30 DUP PTJ0111-05 Water 10/04/10 00:00 10/05/10 15:30 Field Blank PTJ0111-06 Water 10/04/10 00:00 10/05/10 15:30 Trip Blank PTJ0111-07 Water 10/04/10 00:00 10/05/10 15:30 Drum PTJ0111-08 Water 10/04/10 00:00 10/05/10 15:30 GRI-12 PTJ0111-09 Soil 10/04/10 12:27 10/05/10 15:30 GRI-13 PTJ0111-10 Soil 10/04/10 13:45 10/05/10 15:30 GRI-14 PTJ0111-11 Soil 10/04/10 15:20 10/05/10 15:30 GRI-15 PTJ0111-12 Soil 10/04/10 15:30 10/05/10 15:30

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Hydrocarbon Identification per NW-TPH Methodology TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-08 (Drum) Water Sampled: 10/04/10 00:00

Gasoline Range Hydrocarbons NWTPH ND ----- 0.240 mg/l 1x 10J0261 10/08/10 10:00 10/12/10 13:08 HCID Diesel Range Hydrocarbons " ND ----- 0.481 " " " " " Heavy Oil Range Hydrocarbons " ND ----- 0.481 " " " " "

Surrogate(s): 1-Chlorooctadecane 67.4% 50 - 150 % " "

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Gasoline Hydrocarbons per NW TPH-Gx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

Gasoline Range Hydrocarbons NW TPH-Gx ND ----- 80.0 ug/l 1x 10J0214 10/07/10 09:41 10/07/10 12:47

Surrogate(s): 4-BFB (FID) 97.9% 50 - 150 % " "

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Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

Diesel Range Organics NWTPH-Dx 0.185 ----- 0.0952 mg/l 1x 10J0261 10/08/10 10:00 10/11/10 14:51 Q13 Residual Range/Heavy Oil " ND ----- 0.476 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 66.4% 50 - 150 % " "

PTJ0111-09 (GRI-12) Soil Sampled: 10/04/10 12:27

Diesel Range Organics NWTPH-Dx ND ----- 14.2 mg/kg dry 1x 10J0537 10/15/10 23:00 10/16/10 00:45 Residual Range/Heavy Oil " ND ----- 28.4 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 78.0% 50 - 150 % " "

PTJ0111-10 (GRI-13) Soil Sampled: 10/04/10 13:45

Diesel Range Organics NWTPH-Dx ND ----- 14.3 mg/kg dry 1x 10J0254 10/08/10 13:00 10/08/10 22:27 Residual Range/Heavy Oil " ND ----- 28.7 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 84.9% 50 - 150 % " "

PTJ0111-11 (GRI-14) Soil Sampled: 10/04/10 15:20

Diesel Range Organics NWTPH-Dx ND ----- 16.4 mg/kg dry 1x 10J0254 10/08/10 13:00 10/08/10 22:44 Residual Range/Heavy Oil " ND ----- 32.8 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 82.6% 50 - 150 % " "

Darrell Auvil, Project Manager

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Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

Cadmium EPA 6020 ND ----- 0.00200 mg/l 2x 10J0211 10/07/10 08:36 10/09/10 21:48 RL1 Chromium " 0.114 ----- 0.0400 " 20x " " 10/11/10 18:35 Lead " 0.0892 ----- 0.0200 " " " " "

PTJ0111-10 (GRI-13) Soil Sampled: 10/04/10 13:45

Lead EPA 6020 5.60 ----- 0.587 mg/kg dry 1x 10J0268 10/08/10 09:54 10/09/10 16:51

PTJ0111-11 (GRI-14) Soil Sampled: 10/04/10 15:20

Lead EPA 6020 612 ----- 0.661 mg/kg dry 1x 10J0268 10/08/10 09:54 10/09/10 16:55

PTJ0111-12 (GRI-15) Soil Sampled: 10/04/10 15:30

Lead EPA 6020 54.0 ----- 0.583 mg/kg dry 1x 10J0638 10/21/10 07:00 10/21/10 15:35

Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polychlorinated Biphenyls per EPA Method 8082 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

Aroclor 1016 EPA 8082 ND ----- 0.476 ug/l 1x 10J0320 10/11/10 17:50 10/20/10 04:15 Aroclor 1221 " ND ----- 0.952 " " " " " Aroclor 1232 " ND ----- 0.476 " " " " " Aroclor 1242 " ND ----- 0.476 " " " " " Aroclor 1248 " ND ----- 0.476 " " " " " Aroclor 1254 " ND ----- 0.476 " " " " " Aroclor 1260 " ND ----- 0.476 " " " " "

Surrogate(s): Decachlorobiphenyl 45.6% 12 - 130 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 7 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-01 (GRI-5) Water Sampled: 10/04/10 17:00

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 14:27 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " 1.87 ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 8 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-01 (GRI-5) Water Sampled: 10/04/10 17:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 14:27 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " 5.71 ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 95.7% 80 - 120 % " " 1,2-DCA-d4 99.4% 80 - 120 % " " Toluene-d8 97.7% 80 - 120 % " " 4-BFB 95.8% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 9 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 13:43 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " 3.14 ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 10 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 13:43 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " 8.37 ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 97.9% 80 - 120 % " " 1,2-DCA-d4 101% 80 - 120 % " " Toluene-d8 99.4% 80 - 120 % " " 4-BFB 99.6% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 11 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-03 (GRI-10) Water Sampled: 10/04/10 17:15

Acetone EPA 8260B 52.1 ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 13:21 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " 8.47 ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " ND ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 12 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-03 (GRI-10) Water Sampled: 10/04/10 17:15

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 13:21 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " 1.38 ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " ND ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 99.8% 80 - 120 % " " 1,2-DCA-d4 102% 80 - 120 % " " Toluene-d8 104% 80 - 120 % " " 4-BFB 115% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 13 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-04 (GRI-11) Water Sampled: 10/04/10 16:45

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:58 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " 4.97 ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 14 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-04 (GRI-11) Water Sampled: 10/04/10 16:45

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:58 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " 14.5 ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 98.7% 80 - 120 % " " 1,2-DCA-d4 101% 80 - 120 % " " Toluene-d8 101% 80 - 120 % " " 4-BFB 98.8% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 15 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-05 (DUP) Water Sampled: 10/04/10 00:00

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:36 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " 5.39 ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 16 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-05 (DUP) Water Sampled: 10/04/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:36 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " 14.6 ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 98.9% 80 - 120 % " " 1,2-DCA-d4 99.3% 80 - 120 % " " Toluene-d8 98.0% 80 - 120 % " " 4-BFB 98.5% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 17 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-06 (Field Blank) Water Sampled: 10/04/10 00:00

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:14 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " ND ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 18 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-06 (Field Blank) Water Sampled: 10/04/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 12:14 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " ND ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 96.4% 80 - 120 % " " 1,2-DCA-d4 98.4% 80 - 120 % " " Toluene-d8 97.4% 80 - 120 % " " 4-BFB 96.4% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 19 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-07 (Trip Blank) Water Sampled: 10/04/10 00:00

Acetone EPA 8260B ND ----- 25.0 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 11:00 Benzene " ND ----- 1.00 " " " " " Bromobenzene " ND ----- 1.00 " " " " " Bromochloromethane " ND ----- 1.00 " " " " " Bromodichloromethane " ND ----- 1.00 " " " " " Bromoform " ND ----- 1.00 " " " " " Bromomethane " ND ----- 5.00 " " " " " 2-Butanone (MEK) " ND ----- 10.0 " " " " " n-Butylbenzene " ND ----- 5.00 " " " " " sec-Butylbenzene " ND ----- 1.00 " " " " " tert-Butylbenzene " ND ----- 1.00 " " " " " Carbon disulfide " ND ----- 10.0 " " " " " Carbon tetrachloride " ND ----- 1.00 " " " " " Chlorobenzene " ND ----- 1.00 " " " " " Chloroethane " ND ----- 1.00 " " " " " Chloroform " ND ----- 1.00 " " " " " Chloromethane " ND ----- 5.00 " " " " " 2-Chlorotoluene " ND ----- 1.00 " " " " " 4-Chlorotoluene " ND ----- 1.00 " " " " " 1,2-Dibromo-3-chloropropane " ND ----- 5.00 " " " " " Dibromochloromethane " ND ----- 1.00 " " " " " 1,2-Dibromoethane " ND ----- 1.00 " " " " " Dibromomethane " ND ----- 1.00 " " " " " 1,2-Dichlorobenzene " ND ----- 1.00 " " " " " 1,3-Dichlorobenzene " ND ----- 1.00 " " " " " 1,4-Dichlorobenzene " ND ----- 1.00 " " " " " Dichlorodifluoromethane " ND ----- 5.00 " " " " " 1,1-Dichloroethane " ND ----- 1.00 " " " " " 1,2-Dichloroethane " ND ----- 1.00 " " " " " 1,1-Dichloroethene " ND ----- 1.00 " " " " " cis-1,2-Dichloroethene " ND ----- 1.00 " " " " " trans-1,2-Dichloroethene " ND ----- 1.00 " " " " " 1,2-Dichloropropane " ND ----- 1.00 " " " " " 1,3-Dichloropropane " ND ----- 1.00 " " " " " 2,2-Dichloropropane " ND ----- 1.00 " " " " " 1,1-Dichloropropene " ND ----- 1.00 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 20 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-07 (Trip Blank) Water Sampled: 10/04/10 00:00

cis-1,3-Dichloropropene EPA 8260B ND ----- 1.00 ug/l 1x 10J0414 10/13/10 08:34 10/13/10 11:00 trans-1,3-Dichloropropene " ND ----- 1.00 " " " " " Ethylbenzene " ND ----- 1.00 " " " " " Hexachlorobutadiene " ND ----- 4.00 " " " " " 2-Hexanone " ND ----- 10.0 " " " " " Isopropylbenzene " ND ----- 2.00 " " " " " p-Isopropyltoluene " ND ----- 2.00 " " " " " 4-Methyl-2-pentanone " ND ----- 5.00 " " " " " Methyl tert-butyl ether " ND ----- 1.00 " " " " " Methylene chloride " ND ----- 5.00 " " " " " Naphthalene " ND ----- 2.00 " " " " " n-Propylbenzene " ND ----- 1.00 " " " " " Styrene " ND ----- 1.00 " " " " " 1,1,1,2-Tetrachloroethane " ND ----- 1.00 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 1.00 " " " " " Tetrachloroethene " ND ----- 1.00 " " " " " Toluene " ND ----- 1.00 " " " " " 1,2,3-Trichlorobenzene " ND ----- 1.00 " " " " " 1,2,4-Trichlorobenzene " ND ----- 1.00 " " " " " 1,1,1-Trichloroethane " ND ----- 1.00 " " " " " 1,1,2-Trichloroethane " ND ----- 1.00 " " " " " Trichloroethene " ND ----- 1.00 " " " " " Trichlorofluoromethane " ND ----- 1.00 " " " " " 1,2,3-Trichloropropane " ND ----- 1.00 " " " " " 1,2,4-Trimethylbenzene " ND ----- 1.00 " " " " " 1,3,5-Trimethylbenzene " ND ----- 1.00 " " " " " Vinyl chloride " ND ----- 1.00 " " " " " o-Xylene " ND ----- 1.00 " " " " " m,p-Xylene " ND ----- 2.00 " " " " "

Surrogate(s): Dibromofluoromethane 96.8% 80 - 120 % " " 1,2-DCA-d4 101% 80 - 120 % " " Toluene-d8 98.6% 80 - 120 % " " 4-BFB 96.1% 80 - 120 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 21 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-02 (GRI-9) Water Sampled: 10/04/10 16:20 H4

Acenaphthene EPA 8270m ND ----- 0.0962 ug/l 1x 10J0523 10/15/10 19:30 10/18/10 14:41 Acenaphthylene " ND ----- 0.0962 " " " " " Anthracene " ND ----- 0.0962 " " " " " Benzo (a) anthracene " ND ----- 0.0962 " " " " " Benzo (a) pyrene " ND ----- 0.0962 " " " " " Benzo (b) fluoranthene " ND ----- 0.0962 " " " " " Benzo (ghi) perylene " ND ----- 0.0962 " " " " " Benzo (k) fluoranthene " ND ----- 0.0962 " " " " " Chrysene " ND ----- 0.0962 " " " " " Dibenzo (a,h) anthracene " ND ----- 0.192 " " " " " Fluoranthene " ND ----- 0.0962 " " " " " Fluorene " ND ----- 0.0962 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 0.0962 " " " " " Naphthalene " ND ----- 0.0962 " " " " " Phenanthrene " ND ----- 0.0962 " " " " " Pyrene " ND ----- 0.0962 " " " " "

Surrogate(s): Fluorene-d10 76.0% 25 - 125 % " " Pyrene-d10 94.6% 23 - 150 % " " Benzo (a) pyrene-d12 86.1% 10 - 125 % " "

PTJ0111-09 (GRI-12) Soil Sampled: 10/04/10 12:27

Acenaphthene EPA 8270m ND ----- 15.0 ug/kg dry 1x 10J0508 10/15/10 11:30 10/15/10 19:00 Acenaphthylene " ND ----- 15.0 " " " " " Anthracene " ND ----- 15.0 " " " " " Benzo (a) anthracene " ND ----- 15.0 " " " " " Benzo (a) pyrene " ND ----- 15.0 " " " " " Benzo (b) fluoranthene " ND ----- 15.0 " " " " " Benzo (ghi) perylene " ND ----- 15.0 " " " " " Benzo (k) fluoranthene " ND ----- 15.0 " " " " " Chrysene " ND ----- 15.0 " " " " " Dibenzo (a,h) anthracene " ND ----- 15.0 " " " " " Fluoranthene " ND ----- 15.0 " " " " " Fluorene " ND ----- 15.0 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 15.0 " " " " " Naphthalene " ND ----- 15.0 " " " " " Phenanthrene " ND ----- 15.0 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 22 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-09 (GRI-12) Soil Sampled: 10/04/10 12:27

Pyrene EPA 8270m ND ----- 15.0 ug/kg dry 1x 10J0508 10/15/10 11:30 10/15/10 19:00

Surrogate(s): Fluorene-d10 84.5% 24 - 125 % " " Pyrene-d10 84.2% 41 - 141 % " " Benzo (a) pyrene-d12 81.7% 38 - 143 % " "

PTJ0111-11 (GRI-14) Soil Sampled: 10/04/10 15:20

Acenaphthene EPA 8270m ND ----- 17.5 ug/kg dry 1x 10J0508 10/15/10 11:30 10/15/10 19:30 Acenaphthylene " ND ----- 17.5 " " " " " Anthracene " ND ----- 17.5 " " " " " Benzo (a) anthracene " ND ----- 17.5 " " " " " Benzo (a) pyrene " ND ----- 17.5 " " " " " Benzo (b) fluoranthene " 23.8 ----- 17.5 " " " " " Benzo (ghi) perylene " ND ----- 17.5 " " " " " Benzo (k) fluoranthene " ND ----- 17.5 " " " " " Chrysene " 28.6 ----- 17.5 " " " " " Dibenzo (a,h) anthracene " ND ----- 17.5 " " " " " Fluoranthene " 42.6 ----- 17.5 " " " " " Fluorene " ND ----- 17.5 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 17.5 " " " " " Naphthalene " 21.4 ----- 17.5 " " " " " Phenanthrene " 32.0 ----- 17.5 " " " " " Pyrene " 30.8 ----- 17.5 " " " " "

Surrogate(s): Fluorene-d10 87.2% 24 - 125 % " " Pyrene-d10 83.6% 41 - 141 % " " Benzo (a) pyrene-d12 87.3% 38 - 143 % " "

PTJ0111-12 (GRI-15) Soil Sampled: 10/04/10 15:30 H4

Acenaphthene EPA 8270m ND ----- 15.6 ug/kg dry 1x 10J0639 10/20/10 10:45 10/22/10 20:25 Acenaphthylene " ND ----- 15.6 " " " " " Anthracene " ND ----- 15.6 " " " " " Benzo (a) anthracene " ND ----- 15.6 " " " " " Benzo (a) pyrene " ND ----- 15.6 " " " " " Benzo (b) fluoranthene " ND ----- 15.6 " " " " " Benzo (ghi) perylene " ND ----- 15.6 " " " " " Benzo (k) fluoranthene " ND ----- 15.6 " " " " " Chrysene " ND ----- 15.6 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 23 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-12 (GRI-15) Soil Sampled: 10/04/10 15:30 H4

Dibenzo (a,h) anthracene EPA 8270m ND ----- 15.6 ug/kg dry 1x 10J0639 10/20/10 10:45 10/22/10 20:25 Fluoranthene " 16.2 ----- 15.6 " " " " " Fluorene " ND ----- 15.6 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 15.6 " " " " " Naphthalene " ND ----- 15.6 " " " " " Phenanthrene " ND ----- 15.6 " " " " " Pyrene " ND ----- 15.6 " " " " "

Surrogate(s): Fluorene-d10 69.0% 24 - 125 % " " Pyrene-d10 77.8% 41 - 141 % " " Benzo (a) pyrene-d12 77.4% 38 - 143 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 24 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Physical Parameters per APHA/ASTM/EPA Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-08 (Drum) Water Sampled: 10/04/10 00:00

Flashpoint EPA 1010 ND ----- 150 °F 1x 10J0474 10/14/10 12:02 10/14/10 15:39

Darrell Auvil, Project Manager

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Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0111-09 (GRI-12) Soil Sampled: 10/04/10 12:27

% Solids ASTM 88.0 ----- 0.0100 % by 1x 10J0454 10/15/10 08:09 10/19/10 07:20 D2216-80 Weight

PTJ0111-10 (GRI-13) Soil Sampled: 10/04/10 13:45

% Solids ASTM 85.2 ----- 0.0100 % by 1x 10J0292 10/08/10 15:27 10/09/10 11:30 D2216-80 Weight

PTJ0111-11 (GRI-14) Soil Sampled: 10/04/10 15:20

% Solids ASTM 75.6 ----- 0.0100 % by 1x 10J0292 10/08/10 15:27 10/09/10 11:30 D2216-80 Weight

PTJ0111-12 (GRI-15) Soil Sampled: 10/04/10 15:30

% Solids ASTM 85.0 ----- 0.0100 % by 1x 10J0655 10/20/10 10:31 10/22/10 07:15 D2216-80 Weight

Darrell Auvil, Project Manager

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Hydrocarbon Identification per NW-TPH Methodology - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0261 Water Preparation Method: EPA 3510 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0261-BLK1) Extracted: 10/08/10 10:00 Gasoline Range Hydrocarbons NWTPH ND --- 0.250 mg/l 2x ------10/12/10 13:32 HCID Diesel Range Hydrocarbons " ND --- 0.500 " " ------" Heavy Oil Range Hydrocarbons " ND --- 0.500 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 73.6% Limits: 50-150% " 10/12/10 13:32

Darrell Auvil, Project Manager

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Gasoline Hydrocarbons per NW TPH-Gx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0214 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0214-BLK1) Extracted: 10/07/10 09:41 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 80.0 ug/l 1x ------10/07/10 12:02

Surrogate(s): 4-BFB (FID) Recovery: 100% Limits: 50-150% " 10/07/10 12:02

LCS (10J0214-BS1) Extracted: 10/07/10 09:41 Gasoline Range Hydrocarbons NW TPH-Gx 524 --- 80.0 ug/l 1x -- 500 105% (70-130) -- -- 10/07/10 10:52

Surrogate(s): 4-BFB (FID) Recovery: 102% Limits: 50-150% " 10/07/10 10:52

LCS Dup (10J0214-BSD1) Extracted: 10/07/10 09:41 Gasoline Range Hydrocarbons NW TPH-Gx 500 --- 80.0 ug/l 1x -- 500 100% (70-130) 4.58% (35) 10/07/10 11:27

Surrogate(s): 4-BFB (FID) Recovery: 102% Limits: 50-150% " 10/07/10 11:27

Duplicate (10J0214-DUP1) QC Source: PTJ0111-02 Extracted: 10/07/10 09:41 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 80.0 ug/l 1x ND ------NR (35) 10/07/10 13:22

Surrogate(s): 4-BFB (FID) Recovery: 98.5% Limits: 50-150% " 10/07/10 13:22

Duplicate (10J0214-DUP2) QC Source: PTJ0135-01 Extracted: 10/07/10 09:41 Gasoline Range Hydrocarbons NW TPH-Gx ND --- 80.0 ug/l 1x ND ------NR (35) 10/07/10 13:57

Surrogate(s): 4-BFB (FID) Recovery: 98.2% Limits: 50-150% " 10/07/10 13:57

Darrell Auvil, Project Manager

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Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0254 Soil Preparation Method: EPA 3550 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0254-BLK1) Extracted: 10/08/10 13:00 Diesel Range Organics NWTPH-Dx ND --- 12.5 mg/kg wet 1x ------10/08/10 15:12 Residual Range/Heavy Oil Organics " ND --- 25.0 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 86.0% Limits: 50-150% " 10/08/10 15:12

LCS (10J0254-BS1) Extracted: 10/08/10 13:00 Diesel Range Organics NWTPH-Dx 112 --- 12.5 mg/kg wet 1x -- 125 89.9% (50-150) -- -- 10/08/10 15:30 Residual Range/Heavy Oil Organics " 71.8 --- 25.0 " " -- 75.0 95.7% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 87.4% Limits: 60-120% " 10/08/10 15:30

Duplicate (10J0254-DUP1) QC Source: PTJ0070-11 Extracted: 10/08/10 13:00 Diesel Range Organics NWTPH-Dx 20.2 --- 17.3 mg/kg dry 1x ND ------47.7% (40) 10/08/10 15:48 R2 Residual Range/Heavy Oil Organics " 40.7 --- 34.6 " " ND ------47.2% " " R2

Surrogate(s): 1-Chlorooctadecane Recovery: 80.5% Limits: 50-150% " 10/08/10 15:48

QC Batch: 10J0261 Water Preparation Method: EPA 3510 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0261-BLK1) Extracted: 10/08/10 10:00 Diesel Range Organics NWTPH-Dx ND --- 0.100 mg/l 1x ------10/08/10 12:49 Residual Range/Heavy Oil Organics " ND --- 0.500 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 64.7% Limits: 50-150% " 10/08/10 12:49

LCS (10J0261-BS1) Extracted: 10/08/10 10:00 Diesel Range Organics NWTPH-Dx 2.12 --- 0.100 mg/l 1x -- 2.50 84.7% (50-150) -- -- 10/08/10 13:03 Residual Range/Heavy Oil Organics " 1.48 --- 0.500 " " -- 1.50 98.5% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 85.5% Limits: 60-120% " 10/08/10 13:03

LCS Dup (10J0261-BSD1) Extracted: 10/08/10 10:00 Diesel Range Organics NWTPH-Dx 2.15 --- 0.100 mg/l 1x -- 2.50 85.9% (50-150) 1.33% (20) 10/08/10 13:18 Residual Range/Heavy Oil Organics " 1.41 --- 0.500 " " -- 1.50 93.9% " 4.76% " "

Surrogate(s): 1-Chlorooctadecane Recovery: 80.8% Limits: 60-120% " 10/08/10 13:18

Darrell Auvil, Project Manager

www.testamericainc.com Page 29 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0537 Soil Preparation Method: EPA 3546 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0537-BLK1) Extracted: 10/15/10 23:00 Diesel Range Organics NWTPH-Dx ND --- 12.5 mg/kg wet 1x ------10/15/10 23:51 Residual Range/Heavy Oil Organics " ND --- 25.0 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 81.5% Limits: 50-150% " 10/15/10 23:51

LCS (10J0537-BS1) Extracted: 10/15/10 23:00 Diesel Range Organics NWTPH-Dx 111 --- 12.5 mg/kg wet 1x -- 125 88.7% (50-150) -- -- 10/15/10 23:33 Residual Range/Heavy Oil Organics " 65.9 --- 25.0 " " -- 75.0 87.9% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 87.2% Limits: 60-120% " 10/15/10 23:33

Duplicate (10J0537-DUP1) QC Source: PTJ0526-01 Extracted: 10/15/10 23:00 Diesel Range Organics NWTPH-Dx ND --- 13.4 mg/kg dry 1x ND ------34.7% (40) 10/16/10 00:09 Residual Range/Heavy Oil Organics " ND --- 26.9 " " ND ------14.1% " "

Surrogate(s): 1-Chlorooctadecane Recovery: 63.4% Limits: 50-150% " 10/16/10 00:09

Duplicate (10J0537-DUP2) QC Source: PTJ0529-03 Extracted: 10/15/10 23:00 Diesel Range Organics NWTPH-Dx ND --- 14.5 mg/kg dry 1x ND ------(40) 10/16/10 00:27 Residual Range/Heavy Oil Organics " ND --- 29.1 " " ND ------NR " "

Surrogate(s): 1-Chlorooctadecane Recovery: 74.5% Limits: 50-150% " 10/16/10 00:27

Darrell Auvil, Project Manager

www.testamericainc.com Page 30 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Metals per EPA 6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0211 Water Preparation Method: EPA 200/3005

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0211-BLK1) Extracted: 10/07/10 08:36 Cadmium EPA 6020 ND --- 0.00100 mg/l 1x ------10/09/10 21:16 Chromium " ND --- 0.00200 " " ------" Lead " ND --- 0.00100 " " ------"

LCS (10J0211-BS1) Extracted: 10/07/10 08:36 Cadmium EPA 6020 0.0928 --- 0.00100 mg/l 1x -- 0.100 92.8% (80-120) -- -- 10/09/10 21:20 Chromium " 0.0934 --- 0.00200 " " -- " 93.4% " -- -- " Lead " 0.0910 --- 0.00100 " " -- " 91.0% " -- -- "

Duplicate (10J0211-DUP1) QC Source: PTJ0107-01 Extracted: 10/07/10 08:36 Cadmium EPA 6020 ND --- 0.00100 mg/l 1x ND ------NR (20) 10/09/10 21:32 Chromium " ND --- 0.00200 " " ND ------1.14% " " Lead " 0.00327 --- 0.00100 " " 0.00330 ------0.913% " 10/11/10 18:11

Matrix Spike (10J0211-MS1) QC Source: PTJ0110-01 Extracted: 10/07/10 08:36 Cadmium EPA 6020 0.0963 --- 0.00100 mg/l 1x ND 0.100 96.3% (75-125) -- -- 10/09/10 21:44 Chromium " 0.102 --- 0.00200 " " 0.00714 " 94.7% " -- -- " Lead " 0.0941 --- 0.00100 " " 0.00362 " 90.5% " -- -- "

Matrix Spike (10J0211-MS2) QC Source: PTJ0113-07 Extracted: 10/07/10 08:36 Cadmium EPA 6020 0.0910 --- 0.00100 mg/l 1x 0.000320 0.100 90.7% (75-125) -- -- 10/09/10 22:27 Chromium " 0.113 --- 0.00200 " " 0.0109 " 102% " -- -- " Lead " 0.0854 --- 0.00100 " " 0.000140 " 85.2% " -- -- "

Darrell Auvil, Project Manager

www.testamericainc.com Page 31 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Total Metals per EPA 6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0268 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0268-BLK1) Extracted: 10/08/10 09:54 Lead EPA 6020 ND --- 0.490 mg/kg wet 1x ------10/09/10 16:00

LCS (10J0268-BS1) Extracted: 10/08/10 09:54 Lead EPA 6020 51.7 --- 0.485 mg/kg wet 1x -- 48.5 106% (80-120) -- -- 10/09/10 16:04

Matrix Spike (10J0268-MS1) QC Source: PTJ0070-01 Extracted: 10/08/10 09:54 Lead EPA 6020 1840 --- 5.86 mg/kg dry 10x 898 58.6 1610% (75-125) -- -- 10/09/10 18:07 MHA

Matrix Spike Dup (10J0268-MSD1) QC Source: PTJ0070-01 Extracted: 10/08/10 09:54 Lead EPA 6020 1130 --- 5.86 mg/kg dry 10x 898 58.6 405% (75-125) 47.4% (40) 10/09/10 18:11 MHA, R2

QC Batch: 10J0638 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0638-BLK1) Extracted: 10/20/10 09:14 Lead EPA 6020 ND --- 0.490 mg/kg wet 1x ------10/21/10 15:23

LCS (10J0638-BS1) Extracted: 10/20/10 09:14 Lead EPA 6020 46.5 --- 0.495 mg/kg wet 1x -- 49.5 93.9% (80-120) -- -- 10/21/10 15:27

Matrix Spike (10J0638-MS1) QC Source: PTJ0506-01 Extracted: 10/20/10 09:14 Lead EPA 6020 576 --- 2.93 mg/kg dry 5x 518 58.7 99.5% (75-125) -- -- 10/21/10 15:47

Matrix Spike Dup (10J0638-MSD1) QC Source: PTJ0506-01 Extracted: 10/20/10 09:14 Lead EPA 6020 567 --- 2.93 mg/kg dry 5x 518 58.7 84.5% (75-125) 1.54% (40) 10/21/10 15:51

Darrell Auvil, Project Manager

www.testamericainc.com Page 32 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polychlorinated Biphenyls per EPA Method 8082 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0320 Water Preparation Method: EPA 3510/600 Series

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0320-BLK1) Extracted: 10/11/10 17:50 Aroclor 1016 EPA 8082 ND --- 0.500 ug/l 1x ------10/20/10 02:04 Aroclor 1221 " ND --- 1.00 " " ------" Aroclor 1232 " ND --- 0.500 " " ------" Aroclor 1242 " ND --- 0.500 " " ------" Aroclor 1248 " ND --- 0.500 " " ------" Aroclor 1254 " ND --- 0.500 " " ------" Aroclor 1260 " ND --- 0.500 " " ------"

Surrogate(s): Decachlorobiphenyl Recovery: 31.8% Limits: 12-130% " 10/20/10 02:04

LCS (10J0320-BS2) Extracted: 10/11/10 17:50 Aroclor 1016 EPA 8082 3.59 --- 0.500 ug/l 1x -- 5.00 71.7% (50-114) -- -- 10/20/10 02:30 Aroclor 1260 " 3.19 --- 0.500 " " -- " 63.9% (8-127) -- -- "

Surrogate(s): Decachlorobiphenyl Recovery: 24.6% Limits: 12-130% " 10/20/10 02:30

Darrell Auvil, Project Manager

www.testamericainc.com Page 33 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0414 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0414-BLK1) Extracted: 10/13/10 08:00 Acetone EPA 8260B ND --- 25.0 ug/l 1x ------10/13/10 10:24 Benzene " ND --- 1.00 " " ------" Bromobenzene " ND --- 1.00 " " ------" Bromochloromethane " ND --- 1.00 " " ------" Bromodichloromethane " ND --- 1.00 " " ------" Bromoform " ND --- 1.00 " " ------" Bromomethane " ND --- 5.00 " " ------" 2-Butanone (MEK) " ND --- 10.0 " " ------" n-Butylbenzene " ND --- 5.00 " " ------" sec-Butylbenzene " ND --- 1.00 " " ------" tert-Butylbenzene " ND --- 1.00 " " ------" Carbon disulfide " ND --- 10.0 " " ------" Carbon tetrachloride " ND --- 1.00 " " ------" Chlorobenzene " ND --- 1.00 " " ------" Chloroethane " ND --- 1.00 " " ------" Chloroform " ND --- 1.00 " " ------" Chloromethane " ND --- 5.00 " " ------" 2-Chlorotoluene " ND --- 1.00 " " ------" 4-Chlorotoluene " ND --- 1.00 " " ------" 1,2-Dibromo-3-chloropropane " ND --- 5.00 " " ------" Dibromochloromethane " ND --- 1.00 " " ------" 1,2-Dibromoethane " ND --- 1.00 " " ------" Dibromomethane " ND --- 1.00 " " ------" 1,2-Dichlorobenzene " ND --- 1.00 " " ------" 1,3-Dichlorobenzene " ND --- 1.00 " " ------" 1,4-Dichlorobenzene " ND --- 1.00 " " ------" Dichlorodifluoromethane " ND --- 5.00 " " ------" 1,1-Dichloroethane " ND --- 1.00 " " ------" 1,2-Dichloroethane " ND --- 1.00 " " ------" 1,1-Dichloroethene " ND --- 1.00 " " ------" cis-1,2-Dichloroethene " ND --- 1.00 " " ------" trans-1,2-Dichloroethene " ND --- 1.00 " " ------" 1,2-Dichloropropane " ND --- 1.00 " " ------" 1,3-Dichloropropane " ND --- 1.00 " " ------" 2,2-Dichloropropane " ND --- 1.00 " " ------" 1,1-Dichloropropene " ND --- 1.00 " " ------" cis-1,3-Dichloropropene " ND --- 1.00 " " ------" trans-1,3-Dichloropropene " ND --- 1.00 " " ------" Ethylbenzene " ND --- 1.00 " " ------"

Darrell Auvil, Project Manager

www.testamericainc.com Page 34 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0414 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0414-BLK1) Extracted: 10/13/10 08:00 Hexachlorobutadiene EPA 8260B ND --- 4.00 ug/l 1x ------10/13/10 10:24 2-Hexanone " ND --- 10.0 " " ------" Isopropylbenzene " ND --- 2.00 " " ------" p-Isopropyltoluene " ND --- 2.00 " " ------" 4-Methyl-2-pentanone " ND --- 5.00 " " ------" Methyl tert-butyl ether " ND --- 1.00 " " ------" Methylene chloride " ND --- 5.00 " " ------" Naphthalene " ND --- 2.00 " " ------" n-Propylbenzene " ND --- 1.00 " " ------" Styrene " ND --- 1.00 " " ------" 1,1,1,2-Tetrachloroethane " ND --- 1.00 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 1.00 " " ------" Tetrachloroethene " ND --- 1.00 " " ------" Toluene " ND --- 1.00 " " ------" 1,2,3-Trichlorobenzene " ND --- 1.00 " " ------" 1,2,4-Trichlorobenzene " ND --- 1.00 " " ------" 1,1,1-Trichloroethane " ND --- 1.00 " " ------" 1,1,2-Trichloroethane " ND --- 1.00 " " ------" Trichloroethene " ND --- 1.00 " " ------" Trichlorofluoromethane " ND --- 1.00 " " ------" 1,2,3-Trichloropropane " ND --- 1.00 " " ------" 1,2,4-Trimethylbenzene " ND --- 1.00 " " ------" 1,3,5-Trimethylbenzene " ND --- 1.00 " " ------" Vinyl chloride " ND --- 1.00 " " ------" o-Xylene " ND --- 1.00 " " ------" m,p-Xylene " ND --- 2.00 " " ------"

Surrogate(s): Dibromofluoromethane Recovery: 100% Limits: 80-120% " 10/13/10 10:24 1,2-DCA-d4 101% 80-120% " " Toluene-d8 98.5% 80-120% " " 4-BFB 98.2% 80-120% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 35 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Volatile Organic Compounds per EPA Method 8260B - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0414 Water Preparation Method: EPA 5030B

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0414-BS1) Extracted: 10/13/10 08:00 Benzene EPA 8260B 19.8 --- 1.00 ug/l 1x -- 20.0 99.2% (80-120) -- -- 10/13/10 09:13 Chlorobenzene " 19.8 --- 1.00 " " -- " 99.0% (80-124) -- -- " 1,1-Dichloroethene " 20.3 --- 1.00 " " -- " 102% (78-120) -- -- " Toluene " 19.6 --- 1.00 " " -- " 98.0% (80-124) -- -- " Trichloroethene " 19.8 --- 1.00 " " -- " 98.8% (80-132) -- -- "

Surrogate(s): Dibromofluoromethane Recovery: 100% Limits: 80-120% " 10/13/10 09:13 1,2-DCA-d4 99.6% 80-120% " " Toluene-d8 100% 80-120% " " 4-BFB 104% 80-120% " "

LCS Dup (10J0414-BSD1) Extracted: 10/13/10 08:00 Benzene EPA 8260B 20.0 --- 1.00 ug/l 1x -- 20.0 99.9% (80-120) 0.754% (25) 10/13/10 09:36 Chlorobenzene " 19.8 --- 1.00 " " -- " 99.2% (80-124) 0.151% " " 1,1-Dichloroethene " 21.1 --- 1.00 " " -- " 105% (78-120) 3.62% " " Toluene " 19.7 --- 1.00 " " -- " 98.4% (80-124) 0.305% " " Trichloroethene " 19.7 --- 1.00 " " -- " 98.4% (80-132) 0.507% " "

Surrogate(s): Dibromofluoromethane Recovery: 103% Limits: 80-120% " 10/13/10 09:36 1,2-DCA-d4 102% 80-120% " " Toluene-d8 101% 80-120% " " 4-BFB 106% 80-120% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 36 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0508 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Surrogate(s): Fluorene-d10 Recovery: 92.0% Limits: 24-125% " 10/15/10 22:58 Pyrene-d10 91.2% 41-141% " " Benzo (a) pyrene-d12 89.3% 38-143% " "

Surrogate(s): Fluorene-d10 Recovery: 78.9% Limits: 24-125% " 10/15/10 22:29 Pyrene-d10 81.6% 41-141% " " Benzo (a) pyrene-d12 83.8% 38-143% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 37 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0508 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Matrix Spike (10J0508-MS1) QC Source: PTJ0332-01 Extracted: 10/15/10 11:30 Acenaphthene EPA 8270m 146 --- 14.5 ug/kg dry 1x ND 180 81.3% (33-139) -- -- 10/18/10 13:42 Benzo (a) pyrene " 151 --- 14.5 " " ND " 83.6% (45-149) -- -- " Pyrene " 149 --- 14.5 " " ND " 82.7% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 84.3% Limits: 24-125% " 10/18/10 13:42 Pyrene-d10 85.3% 41-141% " " Benzo (a) pyrene-d12 87.7% 38-143% " "

Matrix Spike Dup (10J0508-MSD1) QC Source: PTJ0332-01 Extracted: 10/15/10 11:30 Acenaphthene EPA 8270m 146 --- 14.5 ug/kg dry 1x ND 180 80.9% (33-139) 0.519% (40) 10/18/10 14:11 Benzo (a) pyrene " 157 --- 14.5 " " ND " 87.1% (45-149) 4.06% " " Pyrene " 160 --- 14.5 " " ND " 88.9% (39-138) 7.22% " "

Surrogate(s): Fluorene-d10 Recovery: 81.2% Limits: 24-125% " 10/18/10 14:11 Pyrene-d10 89.7% 41-141% " " Benzo (a) pyrene-d12 89.0% 38-143% " "

QC Batch: 10J0523 Water Preparation Method: 3520B Liq-Liq

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0523-BLK1) Extracted: 10/15/10 19:30 Acenaphthene EPA 8270m ND --- 0.100 ug/l 1x ------10/18/10 16:41 Acenaphthylene " ND --- 0.100 " " ------" Anthracene " ND --- 0.100 " " ------" Benzo (a) anthracene " ND --- 0.100 " " ------" Benzo (a) pyrene " ND --- 0.100 " " ------" Benzo (b) fluoranthene " ND --- 0.100 " " ------" Benzo (ghi) perylene " ND --- 0.100 " " ------" Benzo (k) fluoranthene " ND --- 0.100 " " ------" Chrysene " ND --- 0.100 " " ------" Dibenzo (a,h) anthracene " ND --- 0.200 " " ------" Fluoranthene " ND --- 0.100 " " ------" Fluorene " ND --- 0.100 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 0.100 " " ------" Naphthalene " ND --- 0.100 " " ------" Phenanthrene " ND --- 0.100 " " ------" Pyrene " ND --- 0.100 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 87.6% Limits: 25-125% " 10/18/10 16:41 Pyrene-d10 90.4% 23-150% " " Benzo (a) pyrene-d12 83.1% 10-125% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 38 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0523 Water Preparation Method: 3520B Liq-Liq

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0523-BS1) Extracted: 10/15/10 19:30 Acenaphthene EPA 8270m 2.32 --- 0.100 ug/l 1x -- 2.50 92.9% (26-135) -- -- 10/18/10 15:40 Benzo (a) pyrene " 2.25 --- 0.100 " " -- " 89.9% (38-137) -- -- " Pyrene " 2.35 --- 0.100 " " -- " 93.8% (33-133) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 91.9% Limits: 25-125% " 10/18/10 15:40 Pyrene-d10 95.2% 23-150% " " Benzo (a) pyrene-d12 90.4% 10-125% " "

LCS Dup (10J0523-BSD1) Extracted: 10/15/10 19:30 Acenaphthene EPA 8270m 2.07 --- 0.100 ug/l 1x -- 2.50 82.7% (26-135) 11.7% (35) 10/18/10 16:12 Benzo (a) pyrene " 2.03 --- 0.100 " " -- " 81.1% (38-137) 10.4% " " Pyrene " 2.07 --- 0.100 " " -- " 82.7% (33-133) 12.5% " "

Surrogate(s): Fluorene-d10 Recovery: 83.8% Limits: 25-125% " 10/18/10 16:12 Pyrene-d10 85.1% 23-150% " " Benzo (a) pyrene-d12 82.4% 10-125% " "

QC Batch: 10J0639 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0639-BLK1) Extracted: 10/20/10 10:45 Acenaphthene EPA 8270m ND --- 13.2 ug/kg wet 1x ------10/21/10 11:41 Acenaphthylene " ND --- 13.2 " " ------" Anthracene " ND --- 13.2 " " ------" Benzo (a) anthracene " ND --- 13.2 " " ------" Benzo (a) pyrene " ND --- 13.2 " " ------" Benzo (b) fluoranthene " ND --- 13.2 " " ------" Benzo (ghi) perylene " ND --- 13.2 " " ------" Benzo (k) fluoranthene " ND --- 13.2 " " ------" Chrysene " ND --- 13.2 " " ------" Dibenzo (a,h) anthracene " ND --- 13.2 " " ------" Fluoranthene " ND --- 13.2 " " ------" Fluorene " ND --- 13.2 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 13.2 " " ------" Naphthalene " ND --- 13.2 " " ------" Phenanthrene " ND --- 13.2 " " ------" Pyrene " ND --- 13.2 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 66.2% Limits: 24-125% " 10/21/10 11:41 Pyrene-d10 67.0% 41-141% " " Benzo (a) pyrene-d12 66.3% 38-143% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 39 of 43 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0639 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0639-BS1) Extracted: 10/20/10 10:45 Acenaphthene EPA 8270m 108 --- 13.4 ug/kg wet 1x -- 167 64.6% (33-139) -- -- 10/21/10 11:11 Benzo (a) pyrene " 108 --- 13.4 " " -- " 65.0% (45-149) -- -- " Pyrene " 107 --- 13.4 " " -- " 64.2% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 82.9% Limits: 24-125% " 10/21/10 11:11 Pyrene-d10 82.3% 41-141% " " Benzo (a) pyrene-d12 83.3% 38-143% " "

Matrix Spike (10J0639-MS1) QC Source: PTJ0238-10 Extracted: 10/20/10 10:45 Acenaphthene EPA 8270m 151 --- 17.4 ug/kg dry 1x 4.90 217 67.5% (33-139) -- -- 10/21/10 10:12 Benzo (a) pyrene " 161 --- 17.4 " " 16.3 " 66.6% (45-149) -- -- " Pyrene " 191 --- 17.4 " " 33.5 " 72.5% (39-138) -- -- "

Surrogate(s): Fluorene-d10 Recovery: 78.5% Limits: 24-125% " 10/21/10 10:12 Pyrene-d10 81.7% 41-141% " " Benzo (a) pyrene-d12 78.1% 38-143% " "

Matrix Spike Dup (10J0639-MSD1) QC Source: PTJ0238-10 Extracted: 10/20/10 10:45 Acenaphthene EPA 8270m 168 --- 17.3 ug/kg dry 1x 4.90 215 75.9% (33-139) 10.8% (40) 10/21/10 10:42 Benzo (a) pyrene " 168 --- 17.3 " " 16.3 " 70.6% (45-149) 4.62% " " Pyrene " 187 --- 17.3 " " 33.5 " 71.1% (39-138) 2.09% " "

Surrogate(s): Fluorene-d10 Recovery: 85.3% Limits: 24-125% " 10/21/10 10:42 Pyrene-d10 88.5% 41-141% " " Benzo (a) pyrene-d12 84.9% 38-143% " "

Darrell Auvil, Project Manager

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Physical Parameters per APHA/ASTM/EPA Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0474 Other wet Preparation Method: EPA 1010

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS (10J0474-BS1) Extracted: 10/14/10 12:02 Flashpoint EPA 1010 129 --- °F 1x -- 132 97.7% (95-105) -- -- 10/14/10 15:39

Duplicate (10J0474-DUP1) QC Source: PTJ0039-14 Extracted: 10/14/10 12:02 Flashpoint EPA 1010 ND --- 150 °F 1x ND ------(20) 10/14/10 15:39

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Percent Dry Weight (Solids) per ASTM D2216-80 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0292 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0292-DUP1) QC Source: PTI0867-22 Extracted: 10/08/10 15:27 % Solids ASTM 93.7 --- 0.0100 % by Weight 1x 93.2 ------0.541% (20) 10/09/10 11:30 D2216-80

Duplicate (10J0292-DUP2) QC Source: PTI0867-23 Extracted: 10/08/10 15:27 % Solids ASTM 83.5 --- 0.0100 % by Weight 1x 83.2 ------0.419% (20) 10/09/10 11:30 D2216-80

QC Batch: 10J0454 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0454-DUP1) QC Source: PTI0861-02 Extracted: 10/15/10 08:09 % Solids ASTM 72.1 --- 0.0100 % by Weight 1x 71.4 ------1.06% (20) 10/19/10 07:20 D2216-80

QC Batch: 10J0655 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0655-DUP1) QC Source: PTJ0111-12 Extracted: 10/20/10 10:31 % Solids ASTM 86.4 --- 0.0100 % by Weight 1x 85.0 ------1.70% (20) 10/22/10 07:15 D2216-80

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Notes and Definitions

Report Specific Notes: H4 - Sample was extracted past holding time, but analyzed within analysis holding time. MHA - Due to high levels of analyte in the sample, the MS/MSD calculation does not provide useful spike recovery information. See Blank Spike (LCS). Q13 - Detected hydrocarbons do not have pattern and range consistent with typical petroleum products and may be due to biogenic interference. R2 - The RPD exceeded the acceptance limit. RL1 - Reporting limit raised due to sample matrix effects.

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Darrell Auvil, Project Manager

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Method Matrix Oregon

ASTM D2216-80 Soil EPA 1010 Water X EPA 6020 Soil X EPA 6020 Water X EPA 8082 Water X EPA 8260B Water X EPA 8270m Soil X EPA 8270m Water X NW TPH-Gx Water X NWTPH HCID Water X NWTPH-Dx Soil X NWTPH-Dx Water X

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PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

ORELAP#: OR100021

November 21, 2010

Teresa Nowicki GRI Geotechnical & Environmental Consultants 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Beaverton, OR 97005

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 11/02/10 10:27. The following list is a summary of the Work Orders contained in this report, generated on 11/21/10 09:47.

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

Work Order Project ProjectNumber PTK0048 Central City Concern 5144

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ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received GRI-12 PTK0048-01 Soil 10/04/10 12:27 11/02/10 10:27 GRI-14 PTK0048-02 Soil 10/04/10 15:20 11/02/10 10:27

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Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTK0048-01 (GRI-12) Soil Sampled: 10/04/10 12:27

Arsenic EPA 6020 1.10 ----- 0.562 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 01:25

PTK0048-02 (GRI-14) Soil Sampled: 10/04/10 15:20

Arsenic EPA 6020 10.3 ----- 0.661 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 01:29

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Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTK0048-01 (GRI-12) Soil Sampled: 10/04/10 12:27

% Solids ASTM 88.0 ----- 0.0100 % by 1x 10K0516 11/15/10 16:45 11/15/10 16:45 D2216-80 Weight

PTK0048-02 (GRI-14) Soil Sampled: 10/04/10 15:20

% Solids ASTM 75.6 ----- 0.0100 % by 1x 10K0516 11/15/10 16:45 11/15/10 16:45 D2216-80 Weight

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Total Metals per EPA 6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10K0059 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10K0059-BLK1) Extracted: 11/02/10 11:20 Arsenic EPA 6020 ND --- 0.495 mg/kg wet 1x ------11/03/10 00:42

LCS (10K0059-BS1) Extracted: 11/02/10 11:20 Arsenic EPA 6020 48.4 --- 0.495 mg/kg wet 1x -- 49.5 97.7% (80-120) -- -- 11/03/10 00:46

Matrix Spike (10K0059-MS1) QC Source: PTJ0588-01 Extracted: 11/02/10 11:20 Arsenic EPA 6020 66.1 --- 0.626 mg/kg dry 1x 6.57 62.6 95.2% (75-125) -- -- 11/03/10 00:58

Matrix Spike Dup (10K0059-MSD1) QC Source: PTJ0588-01 Extracted: 11/02/10 11:20 Arsenic EPA 6020 70.8 --- 0.638 mg/kg dry 1x 6.57 63.8 101% (75-125) 6.78% (40) 11/03/10 01:02

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Notes and Definitions

Report Specific Notes:

None

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 6 CERTIFICATION SUMMARY TestAmerica Portland

Method Matrix Oregon

ASTM D2216-80 Soil EPA 6020 Soil X

Darrell Auvil, Project Manager

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ORELAP#: OR100021

Amended Report

November 11, 2010

Teresa Nowicki GRI Geotechnical & Environmental Consultants 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Beaverton, OR 97005

RE: Central City Concern

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

Work Order Project ProjectNumber PTJ0109 Central City Concern 5144

Darrell Auvil, Project Manager

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Amended Report

ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received GRI-5/A-309 PTJ0109-01 Air 10/04/10 14:30 10/05/10 15:30 GRI-10/GL0071 PTJ0109-02 Air 10/04/10 09:15 10/05/10 15:30 GRI-11/93234 PTJ0109-03 Air 10/04/10 12:30 10/05/10 15:30

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Amended Report

Analytical Case Narrative TestAmerica - Portland, OR

PTJ0109

Amended report to reflect addition of helium data to the report.

Darrell Auvil, Project Manager

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Amended Report

ASTM D1946 - Fixed Gases TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-01 (GRI-5/A-309) Air Sampled: 10/04/10 14:30

Helium ASTM D1946 ND 0.017 0.034 %(v/v) 1.68x 10J0167 10/07/10 10:10 10/26/10 11:25

PTJ0109-02 (GRI-10/GL0071) Air Sampled: 10/04/10 09:15

Helium ASTM D1946 16 0.017 0.034 %(v/v) 1.68x 10J0167 10/07/10 10:10 10/26/10 11:43

PTJ0109-03 (GRI-11/93234) Air Sampled: 10/04/10 12:30

Helium ASTM D1946 6.5 0.016 0.033 %(v/v) 1.63x 10J0167 10/07/10 10:10 10/26/10 12:03

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-01 (GRI-5/A-309) Air Sampled: 10/04/10 14:30

Acetone EPA TO15 ND ----- 24 ug/m3 1x 10J0103 10/15/10 16:56 10/16/10 05:19 Benzene " ND ----- 9.6 " " " " " Benzyl chloride " ND ----- 52 " " " " " Bromodichloromethane " ND ----- 13 " " " " " Bromoform " ND ----- 21 " " " " " Bromomethane " ND ----- 16 " " " " " 2-Butanone (MEK) " ND ----- 29 " " " " " Carbon disulfide " ND ----- 31 " " " " " Carbon tetrachloride " ND ----- 13 " " " " " Chlorobenzene " ND ----- 9.2 " " " " " Dibromochloromethane " ND ----- 17 " " " " " Chloroethane " ND ----- 11 " " " " " Chloroform " ND ----- 9.8 " " " " " Chloromethane " ND ----- 8.3 " " " " " 1,2-Dibromoethane (EDB) " ND ----- 15 " " " " " 1,2-Dichlorobenzene " ND ----- 12 " " " " " 1,3-Dichlorobenzene " ND ----- 24 " " " " " 1,4-Dichlorobenzene " ND ----- 24 " " " " " Dichlorodifluoromethane " ND ----- 15 " " " " " 1,1-Dichloroethane " ND ----- 8.1 " " " " " 1,2-Dichloroethane " ND ----- 12 " " " " " cis-1,2-Dichloroethene " ND ----- 7.9 " " " " " trans-1,2-Dichloroethene " ND ----- 7.9 " " " " " 1,1-Dichloroethene " ND ----- 7.9 " " " " " 1,2-Dichloropropane " ND ----- 14 " " " " " cis-1,3-Dichloropropene " ND ----- 9.1 " " " " " trans-1,3-Dichloropropene " ND ----- 9.1 " " " " " 1,2-Dichloro-1,1,2,2-tetrafluoroeth " ND ----- 14 " " " " " ane Ethylbenzene " ND ----- 8.7 " " " " " 4-Ethyltoluene " ND ----- 9.8 " " " " " Hexachlorobutadiene " ND ----- 43 " " " " " 2-Hexanone " ND ----- 41 " " " " " Methylene chloride " ND ----- 6.9 " " " " " 4-Methyl-2-pentanone (MIBK) " ND ----- 41 " " " " " Styrene " ND ----- 8.5 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 14 " " " " "

Darrell Auvil, Project Manager

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-01 (GRI-5/A-309) Air Sampled: 10/04/10 14:30

Tetrachloroethene " 1000 ----- 14 " " " " " Toluene " ND ----- 7.5 " " " " " 1,2,4-Trichlorobenzene " ND ----- 37 " " " " " 1,1,1-Trichloroethane " ND ----- 11 " " " " " 1,1,2-Trichloroethane " ND ----- 11 " " " " " Trichloroethene " ND ----- 11 " " " " " Trichlorofluoromethane " 120 ----- 11 " " " " " 1,1,2-Trichloro-1,2,2-trifluoroetha " ND ----- 15 " " " " " ne 1,2,4-Trimethylbenzene " ND ----- 15 " " " " " 1,3,5-Trimethylbenzene " ND ----- 20 " " " " " Vinyl acetate " ND ----- 70 " " " " " Vinyl chloride " ND ----- 10 " " " " " m,p-Xylene " ND ----- 17 " " " " " o-Xylene " ND ----- 8.7 " " " " " Xylenes, total " ND ----- 8.7 " " " " "

Surrogate(s): 4-Bromofluorobenzene 95% 70 - 130 % " " 1,2-Dichloroethane-d4 93% 70 - 130 % " " Toluene-d8 97% 70 - 130 % " "

PTJ0109-02 (GRI-10/GL0071) Air Sampled: 10/04/10 09:15

Acetone EPA TO15 43 ----- 24 ug/m3 1x 10J0088 10/13/10 16:00 10/14/10 08:44 Benzene " ND ----- 9.6 " " " " " Benzyl chloride " ND ----- 52 " " " " " Bromodichloromethane " ND ----- 13 " " " " " Bromoform " ND ----- 21 " " " " " Bromomethane " ND ----- 16 " " " " " 2-Butanone (MEK) " ND ----- 30 " " " " " Carbon disulfide " ND ----- 31 " " " " " Carbon tetrachloride " ND ----- 13 " " " " " Chlorobenzene " ND ----- 9.2 " " " " " Dibromochloromethane " ND ----- 17 " " " " " Chloroethane " ND ----- 11 " " " " " Chloroform " ND ----- 9.8 " " " " " Chloromethane " ND ----- 8.3 " " " " " 1,2-Dibromoethane (EDB) " ND ----- 15 " " " " "

Darrell Auvil, Project Manager

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-02 (GRI-10/GL0071) Air Sampled: 10/04/10 09:15

1,2-Dichlorobenzene EPA TO15 ND ----- 12 ug/m3 1x 10J0088 10/13/10 16:00 10/14/10 08:44 1,3-Dichlorobenzene " ND ----- 24 " " " " " 1,4-Dichlorobenzene " ND ----- 24 " " " " " Dichlorodifluoromethane " ND ----- 15 " " " " " 1,1-Dichloroethane " ND ----- 8.1 " " " " " 1,2-Dichloroethane " ND ----- 12 " " " " " cis-1,2-Dichloroethene " ND ----- 7.9 " " " " " trans-1,2-Dichloroethene " ND ----- 7.9 " " " " " 1,1-Dichloroethene " ND ----- 7.9 " " " " " 1,2-Dichloropropane " ND ----- 14 " " " " " cis-1,3-Dichloropropene " ND ----- 9.1 " " " " " trans-1,3-Dichloropropene " ND ----- 9.1 " " " " " 1,2-Dichloro-1,1,2,2-tetrafluoroeth " ND ----- 14 " " " " " ane Ethylbenzene " ND ----- 8.7 " " " " " 4-Ethyltoluene " ND ----- 9.8 " " " " " Hexachlorobutadiene " ND ----- 43 " " " " " 2-Hexanone " ND ----- 41 " " " " " Methylene chloride " ND ----- 7.0 " " " " " 4-Methyl-2-pentanone (MIBK) " ND ----- 41 " " " " " Styrene " ND ----- 8.5 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 14 " " " " " Tetrachloroethene " ND ----- 14 " " " " " Toluene " 210 ----- 7.5 " " " " " 1,2,4-Trichlorobenzene " ND ----- 37 " " " " " 1,1,1-Trichloroethane " ND ----- 11 " " " " " 1,1,2-Trichloroethane " ND ----- 11 " " " " " Trichloroethene " ND ----- 11 " " " " " Trichlorofluoromethane " 49 ----- 11 " " " " " 1,1,2-Trichloro-1,2,2-trifluoroetha " ND ----- 15 " " " " " ne 1,2,4-Trimethylbenzene " ND ----- 15 " " " " " 1,3,5-Trimethylbenzene " ND ----- 20 " " " " " Vinyl acetate " ND ----- 70 " " " " " Vinyl chloride " ND ----- 10 " " " " " m,p-Xylene " ND ----- 17 " " " " " o-Xylene " ND ----- 8.7 " " " " "

Darrell Auvil, Project Manager

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-02 (GRI-10/GL0071) Air Sampled: 10/04/10 09:15

Xylenes, total EPA TO15 ND ----- 8.7 ug/m3 1x 10J0088 10/13/10 16:00 10/14/10 08:44

Surrogate(s): 4-Bromofluorobenzene 110% 70 - 130 % " " 1,2-Dichloroethane-d4 120% 70 - 130 % " " Toluene-d8 96% 70 - 130 % " "

PTJ0109-03 (GRI-11/93234) Air Sampled: 10/04/10 12:30

Acetone EPA TO15 29 ----- 24 ug/m3 1x 10J0103 10/15/10 16:56 10/16/10 06:09 Benzene " ND ----- 9.6 " " " " " Benzyl chloride " ND ----- 52 " " " " " Bromodichloromethane " ND ----- 13 " " " " " Bromoform " ND ----- 21 " " " " " Bromomethane " ND ----- 16 " " " " " 2-Butanone (MEK) " ND ----- 29 " " " " " Carbon disulfide " 40 ----- 31 " " " " " Carbon tetrachloride " ND ----- 13 " " " " " Chlorobenzene " ND ----- 9.2 " " " " " Dibromochloromethane " ND ----- 17 " " " " " Chloroethane " ND ----- 11 " " " " " Chloroform " ND ----- 9.8 " " " " " Chloromethane " ND ----- 8.3 " " " " " 1,2-Dibromoethane (EDB) " ND ----- 15 " " " " " 1,2-Dichlorobenzene " ND ----- 12 " " " " " 1,3-Dichlorobenzene " ND ----- 24 " " " " " 1,4-Dichlorobenzene " ND ----- 24 " " " " " Dichlorodifluoromethane " ND ----- 15 " " " " " 1,1-Dichloroethane " ND ----- 8.1 " " " " " 1,2-Dichloroethane " ND ----- 12 " " " " " cis-1,2-Dichloroethene " ND ----- 7.9 " " " " " trans-1,2-Dichloroethene " ND ----- 7.9 " " " " " 1,1-Dichloroethene " ND ----- 7.9 " " " " " 1,2-Dichloropropane " ND ----- 14 " " " " " cis-1,3-Dichloropropene " ND ----- 9.1 " " " " " trans-1,3-Dichloropropene " ND ----- 9.1 " " " " " 1,2-Dichloro-1,1,2,2-tetrafluoroeth " ND ----- 14 " " " " " ane Ethylbenzene " ND ----- 8.7 " " " " " 4-Ethyltoluene " 30 ----- 9.8 " " " " "

Darrell Auvil, Project Manager

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS TestAmerica Los Angeles

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0109-03 (GRI-11/93234) Air Sampled: 10/04/10 12:30

Hexachlorobutadiene " ND ----- 43 " " " " " 2-Hexanone " ND ----- 41 " " " " " Methylene chloride " ND ----- 6.9 " " " " " 4-Methyl-2-pentanone (MIBK) " ND ----- 41 " " " " " Styrene " ND ----- 8.5 " " " " " 1,1,2,2-Tetrachloroethane " ND ----- 14 " " " " " Tetrachloroethene " ND ----- 14 " " " " " Toluene " 19 ----- 7.5 " " " " " 1,2,4-Trichlorobenzene " ND ----- 37 " " " " " 1,1,1-Trichloroethane " ND ----- 11 " " " " " 1,1,2-Trichloroethane " ND ----- 11 " " " " " Trichloroethene " ND ----- 11 " " " " " Trichlorofluoromethane " 38 ----- 11 " " " " " 1,1,2-Trichloro-1,2,2-trifluoroetha " ND ----- 15 " " " " " ne 1,2,4-Trimethylbenzene " 16 ----- 15 " " " " " 1,3,5-Trimethylbenzene " ND ----- 20 " " " " " Vinyl acetate " ND ----- 70 " " " " " Vinyl chloride " ND ----- 10 " " " " " m,p-Xylene " 18 ----- 17 " " " " " o-Xylene " 23 ----- 8.7 " " " " " Xylenes, total " 41 ----- 8.7 " " " " "

Surrogate(s): 4-Bromofluorobenzene 98% 70 - 130 % " " 1,2-Dichloroethane-d4 95% 70 - 130 % " " Toluene-d8 98% 70 - 130 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 9 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

ASTM D1946 - Fixed Gases - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0167 Air Preparation Method:

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0167-BLK1) Extracted: 10/26/10 10:00 Helium ASTM ND 0.010 0.020 %(v/v) 1x ------10/26/10 11:03 D1946

LCS (10J0167-BS1) Extracted: 10/26/10 10:00 Helium ASTM 12.9 0.010 0.020 %(v/v) 1x -- 12.50 103% (80-120) -- -- 10/26/10 10:16 D1946

LCS Dup (10J0167-BSD1) Extracted: 10/26/10 10:00 Helium ASTM 12.9 0.010 0.020 %(v/v) 1x -- 12.50 103% (80-120) 0.2% (20) 10/26/10 10:36 D1946

Darrell Auvil, Project Manager

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Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0088 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0088-BLK1) Extracted: 10/13/10 00:00 Acetone EPA TO15 ND --- 24 ug/m3 1x ------10/14/10 01:02 Benzene " ND --- 9.6 " " ------" Benzyl chloride " ND --- 52 " " ------" Bromodichloromethane " ND --- 13 " " ------" Bromoform " ND --- 21 " " ------" Bromomethane " ND --- 16 " " ------" 2-Butanone (MEK) " ND --- 29 " " ------" Carbon disulfide " ND --- 31 " " ------" Carbon tetrachloride " ND --- 13 " " ------" Chlorobenzene " ND --- 9.2 " " ------" Dibromochloromethane " ND --- 17 " " ------" Chloroethane " ND --- 11 " " ------" Chloroform " ND --- 9.8 " " ------" Chloromethane " ND --- 8.3 " " ------" 1,2-Dibromoethane (EDB) " ND --- 15 " " ------" 1,2-Dichlorobenzene " ND --- 12 " " ------" 1,3-Dichlorobenzene " ND --- 24 " " ------" 1,4-Dichlorobenzene " ND --- 24 " " ------" Dichlorodifluoromethane " ND --- 15 " " ------" 1,1-Dichloroethane " ND --- 8.1 " " ------" 1,2-Dichloroethane " ND --- 12 " " ------" cis-1,2-Dichloroethene " ND --- 7.9 " " ------" trans-1,2-Dichloroethene " ND --- 7.9 " " ------" 1,1-Dichloroethene " ND --- 7.9 " " ------" 1,2-Dichloropropane " ND --- 14 " " ------" cis-1,3-Dichloropropene " ND --- 9.1 " " ------" trans-1,3-Dichloropropene " ND --- 9.1 " " ------" 1,2-Dichloro-1,1,2,2-tetrafluoroethane " ND --- 14 " " ------" Ethylbenzene " ND --- 8.7 " " ------" 4-Ethyltoluene " ND --- 9.8 " " ------" Hexachlorobutadiene " ND --- 43 " " ------" 2-Hexanone " ND --- 41 " " ------" Methylene chloride " ND --- 6.9 " " ------" 4-Methyl-2-pentanone (MIBK) " ND --- 41 " " ------" Styrene " ND --- 8.5 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 14 " " ------" Tetrachloroethene " ND --- 14 " " ------" Toluene " ND --- 7.5 " " ------" 1,2,4-Trichlorobenzene " ND --- 37 " " ------"

Darrell Auvil, Project Manager

www.testamericainc.com Page 11 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0088 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0088-BLK1) Extracted: 10/13/10 00:00 1,1,1-Trichloroethane EPA TO15 ND --- 11 ug/m3 1x ------10/14/10 01:02 1,1,2-Trichloroethane " ND --- 11 " " ------" Trichloroethene " ND --- 11 " " ------" Trichlorofluoromethane " ND --- 11 " " ------" 1,1,2-Trichloro-1,2,2-trifluoroethane " ND --- 15 " " ------" 1,2,4-Trimethylbenzene " ND --- 15 " " ------" 1,3,5-Trimethylbenzene " ND --- 20 " " ------" Vinyl acetate " ND --- 70 " " ------" Vinyl chloride " ND --- 10 " " ------" m,p-Xylene " ND --- 17 " " ------" o-Xylene " ND --- 8.7 " " ------" Xylenes, total " ND --- 8.7 " " ------"

Surrogate(s): 4-Bromofluorobenzene Recovery: 107% Limits: 70-130% " 10/14/10 01:02 1,2-Dichloroethane-d4 120% 70-130% " " Toluene-d8 102% 70-130% " "

LCS (10J0088-BS1) Extracted: 10/13/10 00:00 Chloroform EPA TO15 231 --- 9.8 ug/m3 1x -- 244.1 94% (70-130) -- -- 10/13/10 22:07 1,2-Dichlorobenzene " 272 --- 12 " " -- 300.6 90% " -- -- " 1,3-Dichlorobenzene " 290 --- 24 " " -- 315.6 92% " -- -- " Dichlorodifluoromethane " 182 --- 15 " " -- 247.3 73% " -- -- " 1,1-Dichloroethane " 186 --- 8.1 " " -- 212.5 88% " -- -- " 1,2-Dichloroethane " 203 --- 12 " " -- 214.5 95% " -- -- " trans-1,2-Dichloroethene " 197 --- 7.9 " " -- 212.1 93% " -- -- " 1,1-Dichloroethene " 162 --- 7.9 " " -- 218.1 74% " -- -- " 1,2-Dichloropropane " 213 --- 14 " " -- 231.1 92% " -- -- " cis-1,3-Dichloropropene " 212 --- 9.1 " " -- 226.9 94% " -- -- " 1,2-Dichloro-1,1,2,2-tetrafluoroethane " 320 --- 14 " " -- 349.5 91% " -- -- " Methylene chloride " 141 --- 6.9 " " -- 184.1 76% " -- -- " Styrene " 190 --- 8.5 " " -- 213.0 89% " -- -- " Tetrachloroethene " 332 --- 14 " " -- 356.1 93% " -- -- " Toluene " 177 --- 7.5 " " -- 201.6 88% " -- -- " 1,1,1-Trichloroethane " 271 --- 11 " " -- 272.8 99% " -- -- "

Surrogate(s): 4-Bromofluorobenzene Recovery: 100% Limits: 70-130% " 10/13/10 22:07 1,2-Dichloroethane-d4 96% 70-130% " " Toluene-d8 99% 70-130% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 12 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0088 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS Dup (10J0088-BSD1) Extracted: 10/13/10 00:00 Chloroform EPA TO15 236 --- 9.8 ug/m3 1x -- 244.1 97% (70-130) 2% (25) 10/14/10 00:17 1,2-Dichlorobenzene " 260 --- 12 " " -- 300.6 87% " 4% " " 1,3-Dichlorobenzene " 289 --- 24 " " -- 315.6 92% " 0.4% " " Dichlorodifluoromethane " 201 --- 15 " " -- 247.3 81% " 10% " " 1,1-Dichloroethane " 200 --- 8.1 " " -- 212.5 94% " 7% " " 1,2-Dichloroethane " 189 --- 12 " " -- 214.5 88% " 7% " " trans-1,2-Dichloroethene " 198 --- 7.9 " " -- 212.1 93% " 0.6% " " 1,1-Dichloroethene " 174 --- 7.9 " " -- 218.1 80% " 7% " " 1,2-Dichloropropane " 203 --- 14 " " -- 231.1 88% " 5% " " cis-1,3-Dichloropropene " 197 --- 9.1 " " -- 226.9 87% " 8% " " 1,2-Dichloro-1,1,2,2-tetrafluoroethane " 340 --- 14 " " -- 349.5 97% " 6% " " Methylene chloride " 144 --- 6.9 " " -- 184.1 78% " 2% " " Styrene " 191 --- 8.5 " " -- 213.0 90% " 0.6% " " Tetrachloroethene " 308 --- 14 " " -- 356.1 87% " 7% " " Toluene " 163 --- 7.5 " " -- 201.6 81% " 8% " " 1,1,1-Trichloroethane " 286 --- 11 " " -- 272.8 105% " 5% " "

Surrogate(s): 4-Bromofluorobenzene Recovery: 95% Limits: 70-130% " 10/14/10 00:17 1,2-Dichloroethane-d4 111% 70-130% " " Toluene-d8 97% 70-130% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 13 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0103 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0103-BLK1) Extracted: 10/15/10 16:56 Acetone EPA TO15 ND --- 24 ug/m3 1x ------10/15/10 23:48 Benzene " ND --- 9.6 " " ------" Benzyl chloride " ND --- 52 " " ------" Bromodichloromethane " ND --- 13 " " ------" Bromoform " ND --- 21 " " ------" Bromomethane " ND --- 16 " " ------" 2-Butanone (MEK) " ND --- 29 " " ------" Carbon disulfide " ND --- 31 " " ------" Carbon tetrachloride " ND --- 13 " " ------" Chlorobenzene " ND --- 9.2 " " ------" Dibromochloromethane " ND --- 17 " " ------" Chloroethane " ND --- 11 " " ------" Chloroform " ND --- 9.8 " " ------" Chloromethane " ND --- 8.3 " " ------" 1,2-Dibromoethane (EDB) " ND --- 15 " " ------" 1,2-Dichlorobenzene " ND --- 12 " " ------" 1,3-Dichlorobenzene " ND --- 24 " " ------" 1,4-Dichlorobenzene " ND --- 24 " " ------" Dichlorodifluoromethane " ND --- 15 " " ------" 1,1-Dichloroethane " ND --- 8.1 " " ------" 1,2-Dichloroethane " ND --- 12 " " ------" cis-1,2-Dichloroethene " ND --- 7.9 " " ------" trans-1,2-Dichloroethene " ND --- 7.9 " " ------" 1,1-Dichloroethene " ND --- 7.9 " " ------" 1,2-Dichloropropane " ND --- 14 " " ------" cis-1,3-Dichloropropene " ND --- 9.1 " " ------" trans-1,3-Dichloropropene " ND --- 9.1 " " ------" 1,2-Dichloro-1,1,2,2-tetrafluoroethane " ND --- 14 " " ------" Ethylbenzene " ND --- 8.7 " " ------" 4-Ethyltoluene " ND --- 9.8 " " ------" Hexachlorobutadiene " ND --- 43 " " ------" 2-Hexanone " ND --- 41 " " ------" Methylene chloride " ND --- 6.9 " " ------" 4-Methyl-2-pentanone (MIBK) " ND --- 41 " " ------" Styrene " ND --- 8.5 " " ------" 1,1,2,2-Tetrachloroethane " ND --- 14 " " ------" Tetrachloroethene " ND --- 14 " " ------" Toluene " ND --- 7.5 " " ------" 1,2,4-Trichlorobenzene " ND --- 37 " " ------"

Darrell Auvil, Project Manager

www.testamericainc.com Page 14 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0103 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0103-BLK1) Extracted: 10/15/10 16:56 1,1,1-Trichloroethane EPA TO15 ND --- 11 ug/m3 1x ------10/15/10 23:48 1,1,2-Trichloroethane " ND --- 11 " " ------" Trichloroethene " ND --- 11 " " ------" Trichlorofluoromethane " ND --- 11 " " ------" 1,1,2-Trichloro-1,2,2-trifluoroethane " ND --- 15 " " ------" 1,2,4-Trimethylbenzene " ND --- 15 " " ------" 1,3,5-Trimethylbenzene " ND --- 20 " " ------" Vinyl acetate " ND --- 70 " " ------" Vinyl chloride " ND --- 10 " " ------" m,p-Xylene " ND --- 17 " " ------" o-Xylene " ND --- 8.7 " " ------" Xylenes, total " ND --- 8.7 " " ------"

Surrogate(s): 4-Bromofluorobenzene Recovery: 95% Limits: 70-130% " 10/15/10 23:48 1,2-Dichloroethane-d4 94% 70-130% " " Toluene-d8 98% 70-130% " "

LCS (10J0103-BS1) Extracted: 10/15/10 16:56 Chloroform EPA TO15 244 --- 9.8 ug/m3 1x -- 244.1 100% (70-130) -- -- 10/15/10 22:27 1,2-Dichlorobenzene " 305 --- 12 " " -- 300.6 102% " -- -- " 1,3-Dichlorobenzene " 341 --- 24 " " -- 315.6 108% " -- -- " Dichlorodifluoromethane " 214 --- 15 " " -- 247.3 87% " -- -- " 1,1-Dichloroethane " 204 --- 8.1 " " -- 212.5 96% " -- -- " 1,2-Dichloroethane " 185 --- 12 " " -- 214.5 86% " -- -- " trans-1,2-Dichloroethene " 201 --- 7.9 " " -- 212.1 95% " -- -- " 1,1-Dichloroethene " 190 --- 7.9 " " -- 218.1 87% " -- -- " 1,2-Dichloropropane " 218 --- 14 " " -- 231.1 94% " -- -- " cis-1,3-Dichloropropene " 212 --- 9.1 " " -- 226.9 93% " -- -- " 1,2-Dichloro-1,1,2,2-tetrafluoroethane " 351 --- 14 " " -- 349.5 100% " -- -- " Methylene chloride " 156 --- 6.9 " " -- 184.1 85% " -- -- " Styrene " 211 --- 8.5 " " -- 213.0 99% " -- -- " Tetrachloroethene " 317 --- 14 " " -- 356.1 89% " -- -- " Toluene " 168 --- 7.5 " " -- 201.6 83% " -- -- " 1,1,1-Trichloroethane " 284 --- 11 " " -- 272.8 104% " -- -- "

Surrogate(s): 4-Bromofluorobenzene Recovery: 99% Limits: 70-130% " 10/15/10 21:00 1,2-Dichloroethane-d4 95% 70-130% " " Toluene-d8 100% 70-130% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 15 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

EPA TO15 (Med-level) - Volatile Organic Compounds by GC/MS - Laboratory Quality Control Results TestAmerica Los Angeles

QC Batch: 10J0103 Air Preparation Method: METHOD-MSMED

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

LCS Dup (10J0103-BSD1) Extracted: 10/15/10 16:56 Chloroform EPA TO15 249 --- 9.8 ug/m3 1x -- 244.1 102% (70-130) 2% (25) 10/15/10 23:08 1,2-Dichlorobenzene " 315 --- 12 " " -- 300.6 105% " 3% " " 1,3-Dichlorobenzene " 336 --- 24 " " -- 315.6 106% " 1% " " Dichlorodifluoromethane " 217 --- 15 " " -- 247.3 88% " 1% " " 1,1-Dichloroethane " 201 --- 8.1 " " -- 212.5 95% " 1% " " 1,2-Dichloroethane " 183 --- 12 " " -- 214.5 85% " 1% " " trans-1,2-Dichloroethene " 199 --- 7.9 " " -- 212.1 94% " 0.9% " " 1,1-Dichloroethene " 194 --- 7.9 " " -- 218.1 89% " 2% " " 1,2-Dichloropropane " 209 --- 14 " " -- 231.1 90% " 4% " " cis-1,3-Dichloropropene " 211 --- 9.1 " " -- 226.9 93% " 0.09% " " 1,2-Dichloro-1,1,2,2-tetrafluoroethane " 354 --- 14 " " -- 349.5 101% " 0.9% " " Methylene chloride " 154 --- 6.9 " " -- 184.1 84% " 1% " " Styrene " 222 --- 8.5 " " -- 213.0 104% " 5% " " Tetrachloroethene " 322 --- 14 " " -- 356.1 91% " 2% " " Toluene " 170 --- 7.5 " " -- 201.6 84% " 1% " " 1,1,1-Trichloroethane " 287 --- 11 " " -- 272.8 105% " 1% " "

Surrogate(s): 4-Bromofluorobenzene Recovery: 98% Limits: 70-130% " 10/15/10 21:42 1,2-Dichloroethane-d4 98% 70-130% " " Toluene-d8 102% 70-130% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 16 of 17 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Notes and Definitions

Report Specific Notes:

None

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Darrell Auvil, Project Manager

www.testamericainc.com Page 17 of 17 CERTIFICATION SUMMARY

Subcontracted Laboratories TestAmerica Los Angeles 3585 Cadillac Ave, Suite A - Costa Mesa, CA 92626 Method Performed: ASTM D1946 Samples: PTJ0109-01, PTJ0109-02, PTJ0109-03 Method Performed: EPA TO15 Samples: PTJ0109-01, PTJ0109-02, PTJ0109-03

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 1

PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

ORELAP#: OR100021

Amended Report

November 15, 2010

Teresa Nowicki GRI Geotechnical & Environmental Consultants 9725 SW Beaverton-Hillsdale Hwy., Ste. 140 Beaverton, OR 97005

RE: Central City Concern

Enclosed are the results of analyses for samples received by the laboratory on 10/19/10 14:50. The following list is a summary of the Work Orders contained in this report, generated on 11/15/10 16:42.

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

Work Order Project ProjectNumber PTJ0588 Central City Concern 5144

Darrell Auvil, Project Manager

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Amended Report

ANALYTICAL REPORT FOR SAMPLES

Sample ID Laboratory ID Matrix Date Sampled Date Received Fill South PTJ0588-01 Soil 10/19/10 13:45 10/19/10 14:50 Fill WestS PTJ0588-02 Soil 10/19/10 13:50 10/19/10 14:50 Fill North PTJ0588-03 Soil 10/19/10 13:55 10/19/10 14:50 Fill WestN PTJ0588-04 Soil 10/19/10 14:00 10/19/10 14:50

Darrell Auvil, Project Manager

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Amended Report

Analytical Case Narrative TestAmerica - Portland, OR

PTJ0588

Amended report to reflect the addition of arsenic analysis.

Darrell Auvil, Project Manager

www.testamericainc.com Page 3 of 15 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-01 (Fill South) Soil Sampled: 10/19/10 13:45

Diesel Range Organics NWTPH-Dx 39.3 ----- 15.9 mg/kg dry 1x 10J0637 10/20/10 11:00 10/21/10 02:56 Q6 Residual Range/Heavy Oil " 350 ----- 31.8 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 82.2% 50 - 150 % " "

PTJ0588-02 (Fill WestS) Soil Sampled: 10/19/10 13:50

Diesel Range Organics NWTPH-Dx 114 ----- 30.0 mg/kg dry 2x 10J0637 10/20/10 11:00 10/21/10 03:16 Q6 Residual Range/Heavy Oil " 1030 ----- 60.0 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 81.2% 50 - 150 % " "

PTJ0588-03 (Fill North) Soil Sampled: 10/19/10 13:55

Diesel Range Organics NWTPH-Dx ND ----- 15.9 mg/kg dry 1x 10J0637 10/20/10 11:00 10/21/10 03:36 Residual Range/Heavy Oil " 51.8 ----- 31.9 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 85.3% 50 - 150 % " "

PTJ0588-04 (Fill WestN) Soil Sampled: 10/19/10 14:00

Diesel Range Organics NWTPH-Dx ND ----- 16.1 mg/kg dry 1x 10J0637 10/20/10 11:00 10/21/10 04:36 Residual Range/Heavy Oil " ND ----- 32.2 " " " " " Organics

Surrogate(s): 1-Chlorooctadecane 79.1% 50 - 150 % " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 4 of 15 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Total Metals per EPA 6000/7000 Series Methods TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-01 (Fill South) Soil Sampled: 10/19/10 13:45

Arsenic EPA 6020 6.57 ----- 0.632 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 00:50 Lead EPA 6010B 116 ----- 12.8 " 2x 10J0648 10/20/10 09:29 10/21/10 17:25

PTJ0588-02 (Fill WestS) Soil Sampled: 10/19/10 13:50

Arsenic EPA 6020 5.95 ----- 0.602 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 01:06 Lead EPA 6010B 922 ----- 29.8 " 5x 10J0648 10/20/10 09:29 10/21/10 18:56

PTJ0588-03 (Fill North) Soil Sampled: 10/19/10 13:55

Arsenic EPA 6020 11.6 ----- 0.642 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 01:10 Lead EPA 6010B 234 ----- 12.7 " 2x 10J0648 10/20/10 09:29 10/21/10 17:43

PTJ0588-04 (Fill WestN) Soil Sampled: 10/19/10 14:00

Arsenic EPA 6020 11.3 ----- 0.617 mg/kg dry 1x 10K0059 11/02/10 11:20 11/03/10 01:14 Lead EPA 6010B 31.3 ----- 12.8 " 2x 10J0648 10/20/10 09:29 10/21/10 17:48

Darrell Auvil, Project Manager

www.testamericainc.com Page 5 of 15 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-01 (Fill South) Soil Sampled: 10/19/10 13:45

Acenaphthene EPA 8270m ND ----- 42.5 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 13:39 Acenaphthylene " 355 ----- 42.5 " " " " " Anthracene " 246 ----- 42.5 " " " " " Benzo (a) anthracene " 363 ----- 42.5 " " " " " Benzo (a) pyrene " 536 ----- 42.5 " " " " " Benzo (b) fluoranthene " 373 ----- 42.5 " " " " " Benzo (ghi) perylene " 635 ----- 42.5 " " " " " Benzo (k) fluoranthene " 318 ----- 42.5 " " " " " Chrysene " 405 ----- 42.5 " " " " " Dibenzo (a,h) anthracene " 166 ----- 42.5 " " " " " Fluoranthene " 426 ----- 42.5 " " " " " Fluorene " ND ----- 42.5 " " " " " Indeno (1,2,3-cd) pyrene " 427 ----- 42.5 " " " " " Naphthalene " 52.6 ----- 42.5 " " " " " Phenanthrene " 288 ----- 42.5 " " " " " Pyrene " 535 ----- 42.5 " " " " "

Surrogate(s): Fluorene-d10 74.2% 24 - 125 % " " Pyrene-d10 76.8% 41 - 141 % " " Benzo (a) pyrene-d12 70.1% 38 - 143 % " "

PTJ0588-02 (Fill WestS) Soil Sampled: 10/19/10 13:50

Acenaphthene EPA 8270m ND ----- 40.4 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 14:09 Acenaphthylene " 87.0 ----- 40.4 " " " " " Anthracene " 108 ----- 40.4 " " " " " Benzo (a) anthracene " 179 ----- 40.4 " " " " " Benzo (a) pyrene " 317 ----- 40.4 " " " " " Benzo (b) fluoranthene " 206 ----- 40.4 " " " " " Benzo (ghi) perylene " 494 ----- 40.4 " " " " " Benzo (k) fluoranthene " 190 ----- 40.4 " " " " " Chrysene " 221 ----- 40.4 " " " " " Dibenzo (a,h) anthracene " 111 ----- 40.4 " " " " " Fluoranthene " 194 ----- 40.4 " " " " " Fluorene " ND ----- 40.4 " " " " " Indeno (1,2,3-cd) pyrene " 277 ----- 40.4 " " " " " Naphthalene " ND ----- 40.4 " " " " " Phenanthrene " 120 ----- 40.4 " " " " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 6 of 15 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-02 (Fill WestS) Soil Sampled: 10/19/10 13:50

Pyrene EPA 8270m 291 ----- 40.4 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 14:09

Surrogate(s): Fluorene-d10 70.2% 24 - 125 % " " Pyrene-d10 75.2% 41 - 141 % " " Benzo (a) pyrene-d12 71.1% 38 - 143 % " "

PTJ0588-03 (Fill North) Soil Sampled: 10/19/10 13:55

Acenaphthene EPA 8270m ND ----- 17.0 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 14:39 Acenaphthylene " ND ----- 17.0 " " " " " Anthracene " ND ----- 17.0 " " " " " Benzo (a) anthracene " ND ----- 17.0 " " " " " Benzo (a) pyrene " ND ----- 17.0 " " " " " Benzo (b) fluoranthene " ND ----- 17.0 " " " " " Benzo (ghi) perylene " ND ----- 17.0 " " " " " Benzo (k) fluoranthene " ND ----- 17.0 " " " " " Chrysene " ND ----- 17.0 " " " " " Dibenzo (a,h) anthracene " ND ----- 17.0 " " " " " Fluoranthene " ND ----- 17.0 " " " " " Fluorene " ND ----- 17.0 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 17.0 " " " " " Naphthalene " ND ----- 17.0 " " " " " Phenanthrene " ND ----- 17.0 " " " " " Pyrene " ND ----- 17.0 " " " " "

Surrogate(s): Fluorene-d10 76.0% 24 - 125 % " " Pyrene-d10 79.1% 41 - 141 % " " Benzo (a) pyrene-d12 75.2% 38 - 143 % " "

PTJ0588-04 (Fill WestN) Soil Sampled: 10/19/10 14:00

Acenaphthene EPA 8270m ND ----- 17.3 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 15:09 Acenaphthylene " ND ----- 17.3 " " " " " Anthracene " ND ----- 17.3 " " " " " Benzo (a) anthracene " ND ----- 17.3 " " " " " Benzo (a) pyrene " ND ----- 17.3 " " " " " Benzo (b) fluoranthene " ND ----- 17.3 " " " " " Benzo (ghi) perylene " ND ----- 17.3 " " " " " Benzo (k) fluoranthene " ND ----- 17.3 " " " " " Chrysene " ND ----- 17.3 " " " " "

Darrell Auvil, Project Manager

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Amended Report

Polynuclear Aromatic Compounds per EPA 8270M-SIM TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-04 (Fill WestN) Soil Sampled: 10/19/10 14:00

Dibenzo (a,h) anthracene EPA 8270m ND ----- 17.3 ug/kg dry 1x 10J0639 10/20/10 10:45 10/21/10 15:09 Fluoranthene " ND ----- 17.3 " " " " " Fluorene " ND ----- 17.3 " " " " " Indeno (1,2,3-cd) pyrene " ND ----- 17.3 " " " " " Naphthalene " ND ----- 17.3 " " " " " Phenanthrene " ND ----- 17.3 " " " " " Pyrene " ND ----- 17.3 " " " " "

Surrogate(s): Fluorene-d10 71.3% 24 - 125 % " " Pyrene-d10 78.2% 41 - 141 % " " Benzo (a) pyrene-d12 71.0% 38 - 143 % " "

Darrell Auvil, Project Manager

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Amended Report

Percent Dry Weight (Solids) per ASTM D2216-80 TestAmerica Portland

Analyte Method Result MDL* MRL Units Dil Batch Prepared Analyzed Notes

PTJ0588-01 (Fill South) Soil Sampled: 10/19/10 13:45

% Solids ASTM 78.3 ----- 0.0100 % by 1x 10J0655 10/20/10 10:31 10/22/10 07:15 D2216-80 Weight

PTJ0588-02 (Fill WestS) Soil Sampled: 10/19/10 13:50

% Solids ASTM 83.0 ----- 0.0100 % by 1x 10J0655 10/20/10 10:31 10/22/10 07:15 D2216-80 Weight

PTJ0588-03 (Fill North) Soil Sampled: 10/19/10 13:55

% Solids ASTM 77.9 ----- 0.0100 % by 1x 10J0655 10/20/10 10:31 10/22/10 07:15 D2216-80 Weight

PTJ0588-04 (Fill WestN) Soil Sampled: 10/19/10 14:00

% Solids ASTM 77.1 ----- 0.0100 % by 1x 10J0655 10/20/10 10:31 10/22/10 07:15 D2216-80 Weight

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Amended Report

Diesel and Heavy Range Hydrocarbons per NWTPH-Dx Method - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0637 Soil Preparation Method: EPA 3550 Fuels

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0637-BLK1) Extracted: 10/20/10 11:00 Diesel Range Organics NWTPH-Dx ND --- 12.5 mg/kg wet 1x ------10/20/10 12:45 Residual Range/Heavy Oil Organics " ND --- 25.0 " " ------"

Surrogate(s): 1-Chlorooctadecane Recovery: 88.0% Limits: 50-150% " 10/20/10 12:45

LCS (10J0637-BS1) Extracted: 10/20/10 11:00 Diesel Range Organics NWTPH-Dx 130 --- 12.5 mg/kg wet 1x -- 125 104% (50-150) -- -- 10/20/10 12:26 Residual Range/Heavy Oil Organics " 78.5 --- 25.0 " " -- 75.0 105% " -- -- "

Surrogate(s): 1-Chlorooctadecane Recovery: 97.2% Limits: 60-120% " 10/20/10 12:26

Duplicate (10J0637-DUP1) QC Source: PTJ0392-01 Extracted: 10/20/10 11:00 Diesel Range Organics NWTPH-Dx 1080 --- 270 mg/kg dry 20x 957 ------11.8% (40) 10/20/10 11:51 Residual Range/Heavy Oil Organics " 1790 --- 540 " " 1960 ------9.24% " "

Surrogate(s): 1-Chlorooctadecane Recovery: 109% Limits: 50-150% " 10/20/10 11:51

Duplicate (10J0637-DUP2) QC Source: PTJ0596-01 Extracted: 10/20/10 11:00 Diesel Range Organics NWTPH-Dx ND --- 16.4 mg/kg dry 1x ND ------NR (40) 10/20/10 23:23 Residual Range/Heavy Oil Organics " ND --- 32.9 " " ND ------NR " "

Surrogate(s): 1-Chlorooctadecane Recovery: 78.7% Limits: 50-150% " 10/20/10 23:23

Darrell Auvil, Project Manager

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Amended Report

Total Metals per EPA 6000/7000 Series Methods - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0648 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0648-BLK1) Extracted: 10/20/10 09:29 Lead EPA 6010B ND --- 4.81 mg/kg wet 1x ------10/21/10 17:14

LCS (10J0648-BS1) Extracted: 10/20/10 09:29 Lead EPA 6010B 47.6 --- 5.00 mg/kg wet 1x -- 50.0 95.2% (80-120) -- -- 10/21/10 17:20

Matrix Spike (10J0648-MS1) QC Source: PTJ0588-01 Extracted: 10/20/10 09:29 Lead EPA 6010B 271 --- 12.8 mg/kg dry 2x 116 63.8 244% (75-125) -- -- 10/21/10 18:00 M7

Matrix Spike Dup (10J0648-MSD1) QC Source: PTJ0588-01 Extracted: 10/20/10 09:29 Lead EPA 6010B 163 --- 12.8 mg/kg dry 2x 116 63.8 74.8% (75-125) 49.7% (40) 10/21/10 17:31 R2

QC Batch: 10K0059 Soil Preparation Method: EPA 3050

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10K0059-BLK1) Extracted: 11/02/10 11:20 Arsenic EPA 6020 ND --- 0.495 mg/kg wet 1x ------11/03/10 00:42

LCS (10K0059-BS1) Extracted: 11/02/10 11:20 Arsenic EPA 6020 48.4 --- 0.495 mg/kg wet 1x -- 49.5 97.7% (80-120) -- -- 11/03/10 00:46

Matrix Spike (10K0059-MS1) QC Source: PTJ0588-01 Extracted: 11/02/10 11:20 Arsenic EPA 6020 66.1 --- 0.626 mg/kg dry 1x 6.57 62.6 95.2% (75-125) -- -- 11/03/10 00:58

Matrix Spike Dup (10K0059-MSD1) QC Source: PTJ0588-01 Extracted: 11/02/10 11:20 Arsenic EPA 6020 70.8 --- 0.638 mg/kg dry 1x 6.57 63.8 101% (75-125) 6.78% (40) 11/03/10 01:02

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Amended Report

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0639 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Blank (10J0639-BLK1) Extracted: 10/20/10 10:45 1-Methylnaphthalene EPA 8270m ND --- 13.2 ug/kg wet 1x ------10/21/10 11:41 2-Methylnaphthalene " ND --- 13.2 " " ------" Acenaphthene " ND --- 13.2 " " ------" Acenaphthylene " ND --- 13.2 " " ------" Anthracene " ND --- 13.2 " " ------" Benzo (a) anthracene " ND --- 13.2 " " ------" Benzo (a) pyrene " ND --- 13.2 " " ------" Benzo (b) fluoranthene " ND --- 13.2 " " ------" Benzo (ghi) perylene " ND --- 13.2 " " ------" Benzo (k) fluoranthene " ND --- 13.2 " " ------" Chrysene " ND --- 13.2 " " ------" Dibenzo (a,h) anthracene " ND --- 13.2 " " ------" Fluoranthene " ND --- 13.2 " " ------" Fluorene " ND --- 13.2 " " ------" Indeno (1,2,3-cd) pyrene " ND --- 13.2 " " ------" Naphthalene " ND --- 13.2 " " ------" Phenanthrene " ND --- 13.2 " " ------" Pyrene " ND --- 13.2 " " ------"

Surrogate(s): Fluorene-d10 Recovery: 66.2% Limits: 24-125% " 10/21/10 11:41 Pyrene-d10 67.0% 41-141% " " Benzo (a) pyrene-d12 66.3% 38-143% " "

Surrogate(s): Fluorene-d10 Recovery: 82.9% Limits: 24-125% " 10/21/10 11:11 Pyrene-d10 82.3% 41-141% " " Benzo (a) pyrene-d12 83.3% 38-143% " "

Darrell Auvil, Project Manager

www.testamericainc.com Page 12 of 15 PORTLAND, OR 9405 S.W. NIMBUS AVENUE BEAVERTON, OR 97008-7132 ph: (503) 906.9200 fax: (503) 906.9210

Amended Report

Polynuclear Aromatic Compounds per EPA 8270M-SIM - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0639 Soil Preparation Method: EPA 3546

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Surrogate(s): Fluorene-d10 Recovery: 78.5% Limits: 24-125% " 10/21/10 10:12 Pyrene-d10 81.7% 41-141% " " Benzo (a) pyrene-d12 78.1% 38-143% " "

Surrogate(s): Fluorene-d10 Recovery: 85.3% Limits: 24-125% " 10/21/10 10:42 Pyrene-d10 88.5% 41-141% " " Benzo (a) pyrene-d12 84.9% 38-143% " "

Darrell Auvil, Project Manager

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Amended Report

Percent Dry Weight (Solids) per ASTM D2216-80 - Laboratory Quality Control Results TestAmerica Portland

QC Batch: 10J0655 Soil Preparation Method: Dry Weight

Analyte Method Result MDL* MRL Units Dil Source Spike % (Limits) % (Limits) Analyzed Notes Result Amt REC RPD

Duplicate (10J0655-DUP1) QC Source: PTJ0111-12 Extracted: 10/20/10 10:31 % Solids ASTM 86.4 --- 0.0100 % by Weight 1x 85.0 ------1.70% (20) 10/22/10 07:15 D2216-80

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Amended Report

Notes and Definitions

Report Specific Notes: M7 - The MS and/or MSD were above the acceptance limits. See Blank Spike (LCS). Q6 - Results in the diesel organics range are primarily due to overlap from a heavy oil range product. R2 - The RPD exceeded the acceptance limit.

Laboratory Reporting Conventions:

DET - Analyte DETECTED at or above the Reporting Limit. Qualitative Analyses only.

ND - Analyte NOT DETECTED at or above the reporting limit (MDL or MRL, as appropriate).

NR/NA - Not Reported / Not Available dry - Sample results reported on a Dry Weight Basis. Results and Reporting Limits have been corrected for Percent Dry Weight.

Reporting - Reporting limits (MDLs and MRLs) are adjusted based on variations in sample preparation amounts, analytical dilutions and Limits percent solids, where applicable.

Darrell Auvil, Project Manager

www.testamericainc.com Page 15 of 15 CERTIFICATION SUMMARY TestAmerica Portland

Method Matrix Oregon

ASTM D2216-80 Soil EPA 6010B Soil X EPA 6020 Soil X EPA 8270m Soil X NWTPH-Dx Soil X

Darrell Auvil, Project Manager

www.testamericainc.com Page 1 of 1

11/17/2010 Ms. Teresa Nowicki GRI 9725 Southwest Beaverton Hillsdale Highway Suite 140 Beaverton OR 97005

Project Name: BRC Project #: 5144 Workorder #: 1011214A

Dear Ms. Teresa Nowicki

The following report includes the data for the above referenced project for sample(s) received on 11/9/2010 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-15 are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Karen Lopez at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Karen Lopez Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 19 WORK ORDER #: 1011214A

Work Order Summary

CLIENT: Ms. Teresa Nowicki BILL TO: Ms. Teresa Nowicki GRI GRI 9725 Southwest Beaverton Hillsdale 9725 Southwest Beaverton Hillsdale Highway Highway Suite 140 Suite 140 Beaverton, OR 97005 PHONE: 503-641-3478 P.O. # 5144 FAX: 503-644-8034 PROJECT # 5144 BRC DATE RECEIVED: 11/09/2010 CONTACT: Karen Lopez DATE COMPLETED: 11/16/2010

RECEIPT FINAL FRACTION # NAME TEST VAC./PRES. PRESSURE 01A C 2 Modified TO-15 0.0 "Hg 5 psi 02A C 3 Modified TO-15 0.2 "Hg 5 psi 03A C 1 Modified TO-15 0.0 "Hg 5 psi 04A Lab Blank Modified TO-15 NA NA 05A CCV Modified TO-15 NA NA 06A LCS Modified TO-15 NA NA 06AA LCSD Modified TO-15 NA NA

CERTIFIED BY: DATE: 11/17/10 Laboratory Director Certfication numbers: CA NELAP - 02110CA, LA NELAP/LELAP- AI 30763, NY NELAP - 11291, UT NELAP - 9166389892, AZ Licensure AZ0719 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/09, Expiration date: 06/30/11 Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 19 LABORATORY NARRATIVE EPA Method TO-15 GRI Workorder# 1011214A

Three 6 Liter Summa Canister samples were received on November 09, 2010. The laboratory performed analysis via modified EPA Method TO-15 using GC/MS in the full scan mode.

This workorder was independently validated prior to submittal using 'USEPA National Functional Guidelines' as generally applied to the analysis of volatile organic compounds in air. A rules-based, logic driven, independent validation engine was employed to assess completeness, evaluate pass/fail of relevant project quality control requirements and verification of all quantified amounts.

Receiving Notes Despite the use of flow controllers for sample collection, the final canister vacuums for samples C 2 and C 1 were measured at ambient pressure in the field. These ambient pressure readings were confirmed by the laboratory upon sample receipt.

Analytical Notes There were no analytical discrepancies. Definition of Data Qualifying Flags Eight qualifiers may have been used on the data analysis sheets and indicates as follows: B - Compound present in laboratory blank greater than reporting limit (background subtraction not performed). J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the reporting limit. UJ- Non-detected compound associated with low bias in the CCV N - The identification is based on presumptive evidence.

File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 3 of 19 Summary of Detected Compounds MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

Client Sample ID: C 2 Lab ID#: 1011214A-01A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.67 0.85 3.3 4.2 Freon 11 0.67 14 3.8 81 Ethanol 2.7 5.5 5.0 10 Acetone 2.7 6.8 6.4 16 Hexane 0.67 0.70 2.4 2.4 2-Butanone (Methyl Ethyl Ketone) 0.67 1.2 2.0 3.6 Heptane 0.67 1.7 2.7 6.8 Toluene 0.67 130 2.5 480 Ethyl Benzene 0.67 3.6 2.9 16 m,p-Xylene 0.67 9.8 2.9 42 o-Xylene 0.67 2.6 2.9 11 4-Ethyltoluene 0.67 0.73 3.3 3.6

Client Sample ID: C 3 Lab ID#: 1011214A-02A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Ethanol 2.7 10 5.1 20 Acetone 2.7 5.5 6.4 13 Hexane 0.68 0.92 2.4 3.2 Benzene 0.68 1.1 2.2 3.6 Toluene 0.68 2.2 2.5 8.4 m,p-Xylene 0.68 0.97 2.9 4.2

Client Sample ID: C 1 Lab ID#: 1011214A-03A Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.67 2.2 3.3 11 Freon 11 0.67 110 3.8 640 Ethanol 2.7 10 5.0 19

Page 4 of 19 Summary of Detected Compounds MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

Client Sample ID: C 1 Lab ID#: 1011214A-03A Acetone 2.7 13 6.4 32 Carbon Disulfide 0.67 1.3 2.1 3.9 Hexane 0.67 5.2 2.4 18 2-Butanone (Methyl Ethyl Ketone) 0.67 0.98 2.0 2.9 Cyclohexane 0.67 4.2 2.3 14 Benzene 0.67 2.8 2.1 8.8 Heptane 0.67 3.2 2.7 13 Toluene 0.67 17 2.5 64 Ethyl Benzene 0.67 2.1 2.9 9.1 m,p-Xylene 0.67 6.8 2.9 30 o-Xylene 0.67 2.4 2.9 10 4-Ethyltoluene 0.67 1.5 3.3 7.3 1,2,4-Trimethylbenzene 0.67 1.6 3.3 7.7

Page 5 of 19 Client Sample ID: C 2 Lab ID#: 1011214A-01A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111507 Date of Collection: 11/5/10 1:00:00 PM Dil. Factor: 1.34 Date of Analysis: 11/15/10 01:29 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.67 0.85 3.3 4.2 Freon 114 0.67 Not Detected 4.7 Not Detected Chloromethane 2.7 Not Detected 5.5 Not Detected Vinyl Chloride 0.67 Not Detected 1.7 Not Detected 1,3-Butadiene 0.67 Not Detected 1.5 Not Detected Bromomethane 0.67 Not Detected 2.6 Not Detected Chloroethane 0.67 Not Detected 1.8 Not Detected Freon 11 0.67 14 3.8 81 Ethanol 2.7 5.5 5.0 10 Freon 113 0.67 Not Detected 5.1 Not Detected 1,1-Dichloroethene 0.67 Not Detected 2.6 Not Detected Acetone 2.7 6.8 6.4 16 2-Propanol 2.7 Not Detected 6.6 Not Detected Carbon Disulfide 0.67 Not Detected 2.1 Not Detected 3-Chloropropene 2.7 Not Detected 8.4 Not Detected Methylene Chloride 0.67 Not Detected 2.3 Not Detected Methyl tert-butyl ether 0.67 Not Detected 2.4 Not Detected trans-1,2-Dichloroethene 0.67 Not Detected 2.6 Not Detected Hexane 0.67 0.70 2.4 2.4 1,1-Dichloroethane 0.67 Not Detected 2.7 Not Detected 2-Butanone (Methyl Ethyl Ketone) 0.67 1.2 2.0 3.6 cis-1,2-Dichloroethene 0.67 Not Detected 2.6 Not Detected Tetrahydrofuran 0.67 Not Detected 2.0 Not Detected Chloroform 0.67 Not Detected 3.3 Not Detected 1,1,1-Trichloroethane 0.67 Not Detected 3.6 Not Detected Cyclohexane 0.67 Not Detected 2.3 Not Detected Carbon Tetrachloride 0.67 Not Detected 4.2 Not Detected 2,2,4-Trimethylpentane 0.67 Not Detected 3.1 Not Detected Benzene 0.67 Not Detected 2.1 Not Detected 1,2-Dichloroethane 0.67 Not Detected 2.7 Not Detected Heptane 0.67 1.7 2.7 6.8 Trichloroethene 0.67 Not Detected 3.6 Not Detected 1,2-Dichloropropane 0.67 Not Detected 3.1 Not Detected 1,4-Dioxane 2.7 Not Detected 9.6 Not Detected Bromodichloromethane 0.67 Not Detected 4.5 Not Detected cis-1,3-Dichloropropene 0.67 Not Detected 3.0 Not Detected 4-Methyl-2-pentanone 0.67 Not Detected 2.7 Not Detected Toluene 0.67 130 2.5 480 trans-1,3-Dichloropropene 0.67 Not Detected 3.0 Not Detected 1,1,2-Trichloroethane 0.67 Not Detected 3.6 Not Detected Tetrachloroethene 0.67 Not Detected 4.5 Not Detected

Page 6 of 19 Client Sample ID: C 2 Lab ID#: 1011214A-01A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 108 70-130 1,2-Dichloroethane-d4 99 70-130 4-Bromofluorobenzene 99 70-130

Page 7 of 19 Client Sample ID: C 3 Lab ID#: 1011214A-02A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111508 Date of Collection: 11/5/10 2:45:00 PM Dil. Factor: 1.35 Date of Analysis: 11/15/10 01:52 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.68 Not Detected 3.3 Not Detected Freon 114 0.68 Not Detected 4.7 Not Detected Chloromethane 2.7 Not Detected 5.6 Not Detected Vinyl Chloride 0.68 Not Detected 1.7 Not Detected 1,3-Butadiene 0.68 Not Detected 1.5 Not Detected Bromomethane 0.68 Not Detected 2.6 Not Detected Chloroethane 0.68 Not Detected 1.8 Not Detected Freon 11 0.68 Not Detected 3.8 Not Detected Ethanol 2.7 10 5.1 20 Freon 113 0.68 Not Detected 5.2 Not Detected 1,1-Dichloroethene 0.68 Not Detected 2.7 Not Detected Acetone 2.7 5.5 6.4 13 2-Propanol 2.7 Not Detected 6.6 Not Detected Carbon Disulfide 0.68 Not Detected 2.1 Not Detected 3-Chloropropene 2.7 Not Detected 8.4 Not Detected Methylene Chloride 0.68 Not Detected 2.3 Not Detected Methyl tert-butyl ether 0.68 Not Detected 2.4 Not Detected trans-1,2-Dichloroethene 0.68 Not Detected 2.7 Not Detected Hexane 0.68 0.92 2.4 3.2 1,1-Dichloroethane 0.68 Not Detected 2.7 Not Detected 2-Butanone (Methyl Ethyl Ketone) 0.68 Not Detected 2.0 Not Detected cis-1,2-Dichloroethene 0.68 Not Detected 2.7 Not Detected Tetrahydrofuran 0.68 Not Detected 2.0 Not Detected Chloroform 0.68 Not Detected 3.3 Not Detected 1,1,1-Trichloroethane 0.68 Not Detected 3.7 Not Detected Cyclohexane 0.68 Not Detected 2.3 Not Detected Carbon Tetrachloride 0.68 Not Detected 4.2 Not Detected 2,2,4-Trimethylpentane 0.68 Not Detected 3.2 Not Detected Benzene 0.68 1.1 2.2 3.6 1,2-Dichloroethane 0.68 Not Detected 2.7 Not Detected Heptane 0.68 Not Detected 2.8 Not Detected Trichloroethene 0.68 Not Detected 3.6 Not Detected 1,2-Dichloropropane 0.68 Not Detected 3.1 Not Detected 1,4-Dioxane 2.7 Not Detected 9.7 Not Detected Bromodichloromethane 0.68 Not Detected 4.5 Not Detected cis-1,3-Dichloropropene 0.68 Not Detected 3.1 Not Detected 4-Methyl-2-pentanone 0.68 Not Detected 2.8 Not Detected Toluene 0.68 2.2 2.5 8.4 trans-1,3-Dichloropropene 0.68 Not Detected 3.1 Not Detected 1,1,2-Trichloroethane 0.68 Not Detected 3.7 Not Detected Tetrachloroethene 0.68 Not Detected 4.6 Not Detected

Page 8 of 19 Client Sample ID: C 3 Lab ID#: 1011214A-02A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 102 70-130 1,2-Dichloroethane-d4 98 70-130 4-Bromofluorobenzene 96 70-130

Page 9 of 19 Client Sample ID: C 1 Lab ID#: 1011214A-03A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111509 Date of Collection: 11/5/10 3:40:00 PM Dil. Factor: 1.34 Date of Analysis: 11/15/10 02:15 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.67 2.2 3.3 11 Freon 114 0.67 Not Detected 4.7 Not Detected Chloromethane 2.7 Not Detected 5.5 Not Detected Vinyl Chloride 0.67 Not Detected 1.7 Not Detected 1,3-Butadiene 0.67 Not Detected 1.5 Not Detected Bromomethane 0.67 Not Detected 2.6 Not Detected Chloroethane 0.67 Not Detected 1.8 Not Detected Freon 11 0.67 110 3.8 640 Ethanol 2.7 10 5.0 19 Freon 113 0.67 Not Detected 5.1 Not Detected 1,1-Dichloroethene 0.67 Not Detected 2.6 Not Detected Acetone 2.7 13 6.4 32 2-Propanol 2.7 Not Detected 6.6 Not Detected Carbon Disulfide 0.67 1.3 2.1 3.9 3-Chloropropene 2.7 Not Detected 8.4 Not Detected Methylene Chloride 0.67 Not Detected 2.3 Not Detected Methyl tert-butyl ether 0.67 Not Detected 2.4 Not Detected trans-1,2-Dichloroethene 0.67 Not Detected 2.6 Not Detected Hexane 0.67 5.2 2.4 18 1,1-Dichloroethane 0.67 Not Detected 2.7 Not Detected 2-Butanone (Methyl Ethyl Ketone) 0.67 0.98 2.0 2.9 cis-1,2-Dichloroethene 0.67 Not Detected 2.6 Not Detected Tetrahydrofuran 0.67 Not Detected 2.0 Not Detected Chloroform 0.67 Not Detected 3.3 Not Detected 1,1,1-Trichloroethane 0.67 Not Detected 3.6 Not Detected Cyclohexane 0.67 4.2 2.3 14 Carbon Tetrachloride 0.67 Not Detected 4.2 Not Detected 2,2,4-Trimethylpentane 0.67 Not Detected 3.1 Not Detected Benzene 0.67 2.8 2.1 8.8 1,2-Dichloroethane 0.67 Not Detected 2.7 Not Detected Heptane 0.67 3.2 2.7 13 Trichloroethene 0.67 Not Detected 3.6 Not Detected 1,2-Dichloropropane 0.67 Not Detected 3.1 Not Detected 1,4-Dioxane 2.7 Not Detected 9.6 Not Detected Bromodichloromethane 0.67 Not Detected 4.5 Not Detected cis-1,3-Dichloropropene 0.67 Not Detected 3.0 Not Detected 4-Methyl-2-pentanone 0.67 Not Detected 2.7 Not Detected Toluene 0.67 17 2.5 64 trans-1,3-Dichloropropene 0.67 Not Detected 3.0 Not Detected 1,1,2-Trichloroethane 0.67 Not Detected 3.6 Not Detected Tetrachloroethene 0.67 Not Detected 4.5 Not Detected

Page 10 of 19 Client Sample ID: C 1 Lab ID#: 1011214A-03A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

Container Type: 6 Liter Summa Canister Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 100 70-130 4-Bromofluorobenzene 98 70-130

Page 11 of 19 Client Sample ID: Lab Blank Lab ID#: 1011214A-04A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111506 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 12:20 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) Freon 12 0.50 Not Detected 2.5 Not Detected Freon 114 0.50 Not Detected 3.5 Not Detected Chloromethane 2.0 Not Detected 4.1 Not Detected Vinyl Chloride 0.50 Not Detected 1.3 Not Detected 1,3-Butadiene 0.50 Not Detected 1.1 Not Detected Bromomethane 0.50 Not Detected 1.9 Not Detected Chloroethane 0.50 Not Detected 1.3 Not Detected Freon 11 0.50 Not Detected 2.8 Not Detected Ethanol 2.0 Not Detected 3.8 Not Detected Freon 113 0.50 Not Detected 3.8 Not Detected 1,1-Dichloroethene 0.50 Not Detected 2.0 Not Detected Acetone 2.0 Not Detected 4.8 Not Detected 2-Propanol 2.0 Not Detected 4.9 Not Detected Carbon Disulfide 0.50 Not Detected 1.6 Not Detected 3-Chloropropene 2.0 Not Detected 6.3 Not Detected Methylene Chloride 0.50 Not Detected 1.7 Not Detected Methyl tert-butyl ether 0.50 Not Detected 1.8 Not Detected trans-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Hexane 0.50 Not Detected 1.8 Not Detected 1,1-Dichloroethane 0.50 Not Detected 2.0 Not Detected 2-Butanone (Methyl Ethyl Ketone) 0.50 Not Detected 1.5 Not Detected cis-1,2-Dichloroethene 0.50 Not Detected 2.0 Not Detected Tetrahydrofuran 0.50 Not Detected 1.5 Not Detected Chloroform 0.50 Not Detected 2.4 Not Detected 1,1,1-Trichloroethane 0.50 Not Detected 2.7 Not Detected Cyclohexane 0.50 Not Detected 1.7 Not Detected Carbon Tetrachloride 0.50 Not Detected 3.1 Not Detected 2,2,4-Trimethylpentane 0.50 Not Detected 2.3 Not Detected Benzene 0.50 Not Detected 1.6 Not Detected 1,2-Dichloroethane 0.50 Not Detected 2.0 Not Detected Heptane 0.50 Not Detected 2.0 Not Detected Trichloroethene 0.50 Not Detected 2.7 Not Detected 1,2-Dichloropropane 0.50 Not Detected 2.3 Not Detected 1,4-Dioxane 2.0 Not Detected 7.2 Not Detected Bromodichloromethane 0.50 Not Detected 3.4 Not Detected cis-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 4-Methyl-2-pentanone 0.50 Not Detected 2.0 Not Detected Toluene 0.50 Not Detected 1.9 Not Detected trans-1,3-Dichloropropene 0.50 Not Detected 2.3 Not Detected 1,1,2-Trichloroethane 0.50 Not Detected 2.7 Not Detected Tetrachloroethene 0.50 Not Detected 3.4 Not Detected

Page 12 of 19 Client Sample ID: Lab Blank Lab ID#: 1011214A-04A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111506 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 12:20 PM Rpt. Limit Amount Rpt. Limit Amount Compound (ppbv) (ppbv) (ug/m3) (ug/m3) 2-Hexanone 2.0 Not Detected 8.2 Not Detected Dibromochloromethane 0.50 Not Detected 4.2 Not Detected 1,2-Dibromoethane (EDB) 0.50 Not Detected 3.8 Not Detected Chlorobenzene 0.50 Not Detected 2.3 Not Detected Ethyl Benzene 0.50 Not Detected 2.2 Not Detected m,p-Xylene 0.50 Not Detected 2.2 Not Detected o-Xylene 0.50 Not Detected 2.2 Not Detected Styrene 0.50 Not Detected 2.1 Not Detected Bromoform 0.50 Not Detected 5.2 Not Detected Cumene 0.50 Not Detected 2.4 Not Detected 1,1,2,2-Tetrachloroethane 0.50 Not Detected 3.4 Not Detected Propylbenzene 0.50 Not Detected 2.4 Not Detected 4-Ethyltoluene 0.50 Not Detected 2.4 Not Detected 1,3,5-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,2,4-Trimethylbenzene 0.50 Not Detected 2.4 Not Detected 1,3-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,4-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected alpha-Chlorotoluene 0.50 Not Detected 2.6 Not Detected 1,2-Dichlorobenzene 0.50 Not Detected 3.0 Not Detected 1,2,4-Trichlorobenzene 2.0 Not Detected 15 Not Detected Hexachlorobutadiene 2.0 Not Detected 21 Not Detected

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 99 70-130 1,2-Dichloroethane-d4 93 70-130 4-Bromofluorobenzene 99 70-130

Page 13 of 19 Client Sample ID: CCV Lab ID#: 1011214A-05A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111502 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 09:33 AM

Compound %Recovery Freon 12 98 Freon 114 96 Chloromethane 90 Vinyl Chloride 94 1,3-Butadiene 95 Bromomethane 97 Chloroethane 90 Freon 11 98 Ethanol 92 Freon 113 98 1,1-Dichloroethene 96 Acetone 95 2-Propanol 106 Carbon Disulfide 88 3-Chloropropene 104 Methylene Chloride 89 Methyl tert-butyl ether 111 trans-1,2-Dichloroethene 100 Hexane 106 1,1-Dichloroethane 97 2-Butanone (Methyl Ethyl Ketone) 104 cis-1,2-Dichloroethene 106 Tetrahydrofuran 109 Chloroform 100 1,1,1-Trichloroethane 102 Cyclohexane 109 Carbon Tetrachloride 101 2,2,4-Trimethylpentane 116 Benzene 98 1,2-Dichloroethane 100 Heptane 114 Trichloroethene 101 1,2-Dichloropropane 103 1,4-Dioxane 103 Bromodichloromethane 98 cis-1,3-Dichloropropene 107 4-Methyl-2-pentanone 116 Toluene 103 trans-1,3-Dichloropropene 104 1,1,2-Trichloroethane 100 Tetrachloroethene 102

Page 14 of 19 Client Sample ID: CCV Lab ID#: 1011214A-05A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111502 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 09:33 AM

Compound %Recovery 2-Hexanone 120 Dibromochloromethane 97 1,2-Dibromoethane (EDB) 101 Chlorobenzene 101 Ethyl Benzene 110 m,p-Xylene 109 o-Xylene 112 Styrene 109 Bromoform 103 Cumene 110 1,1,2,2-Tetrachloroethane 95 Propylbenzene 106 4-Ethyltoluene 108 1,3,5-Trimethylbenzene 115 1,2,4-Trimethylbenzene 113 1,3-Dichlorobenzene 103 1,4-Dichlorobenzene 98 alpha-Chlorotoluene 106 1,2-Dichlorobenzene 101 1,2,4-Trichlorobenzene 102 Hexachlorobutadiene 103

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 104 70-130 1,2-Dichloroethane-d4 98 70-130 4-Bromofluorobenzene 102 70-130

Page 15 of 19 Client Sample ID: LCS Lab ID#: 1011214A-06A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111503 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 10:52 AM

Compound %Recovery Freon 12 95 Freon 114 92 Chloromethane 86 Vinyl Chloride 92 1,3-Butadiene 95 Bromomethane 94 Chloroethane 87 Freon 11 95 Ethanol 90 Freon 113 84 1,1-Dichloroethene 82 Acetone 87 2-Propanol 98 Carbon Disulfide 83 3-Chloropropene 97 Methylene Chloride 81 Methyl tert-butyl ether 106 trans-1,2-Dichloroethene 94 Hexane 102 1,1-Dichloroethane 89 2-Butanone (Methyl Ethyl Ketone) 100 cis-1,2-Dichloroethene 98 Tetrahydrofuran 104 Chloroform 92 1,1,1-Trichloroethane 94 Cyclohexane 103 Carbon Tetrachloride 94 2,2,4-Trimethylpentane 109 Benzene 93 1,2-Dichloroethane 92 Heptane 106 Trichloroethene 94 1,2-Dichloropropane 94 1,4-Dioxane 97 Bromodichloromethane 90 cis-1,3-Dichloropropene 100 4-Methyl-2-pentanone 107 Toluene 90 trans-1,3-Dichloropropene 94 1,1,2-Trichloroethane 91 Tetrachloroethene 91

Page 16 of 19 Client Sample ID: LCS Lab ID#: 1011214A-06A MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111503 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 10:52 AM

Compound %Recovery 2-Hexanone 107 Dibromochloromethane 91 1,2-Dibromoethane (EDB) 96 Chlorobenzene 93 Ethyl Benzene 101 m,p-Xylene 100 o-Xylene 103 Styrene 101 Bromoform 94 Cumene 99 1,1,2,2-Tetrachloroethane 89 Propylbenzene 95 4-Ethyltoluene 99 1,3,5-Trimethylbenzene 108 1,2,4-Trimethylbenzene 105 1,3-Dichlorobenzene 95 1,4-Dichlorobenzene 91 alpha-Chlorotoluene 97 1,2-Dichlorobenzene 93 1,2,4-Trichlorobenzene 90 Hexachlorobutadiene 94

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 102 70-130 1,2-Dichloroethane-d4 99 70-130 4-Bromofluorobenzene 102 70-130

Page 17 of 19 Client Sample ID: LCSD Lab ID#: 1011214A-06AA MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111504 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 11:09 AM

Compound %Recovery Freon 12 97 Freon 114 94 Chloromethane 87 Vinyl Chloride 93 1,3-Butadiene 93 Bromomethane 94 Chloroethane 90 Freon 11 96 Ethanol 94 Freon 113 86 1,1-Dichloroethene 83 Acetone 87 2-Propanol 100 Carbon Disulfide 84 3-Chloropropene 96 Methylene Chloride 80 Methyl tert-butyl ether 107 trans-1,2-Dichloroethene 94 Hexane 104 1,1-Dichloroethane 89 2-Butanone (Methyl Ethyl Ketone) 100 cis-1,2-Dichloroethene 102 Tetrahydrofuran 106 Chloroform 94 1,1,1-Trichloroethane 96 Cyclohexane 104 Carbon Tetrachloride 97 2,2,4-Trimethylpentane 112 Benzene 91 1,2-Dichloroethane 92 Heptane 105 Trichloroethene 94 1,2-Dichloropropane 94 1,4-Dioxane 97 Bromodichloromethane 90 cis-1,3-Dichloropropene 100 4-Methyl-2-pentanone 106 Toluene 90 trans-1,3-Dichloropropene 94 1,1,2-Trichloroethane 90 Tetrachloroethene 93

Page 18 of 19 Client Sample ID: LCSD Lab ID#: 1011214A-06AA MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

File Name: p111504 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/15/10 11:09 AM

Compound %Recovery 2-Hexanone 106 Dibromochloromethane 90 1,2-Dibromoethane (EDB) 96 Chlorobenzene 92 Ethyl Benzene 103 m,p-Xylene 101 o-Xylene 103 Styrene 102 Bromoform 95 Cumene 99 1,1,2,2-Tetrachloroethane 89 Propylbenzene 96 4-Ethyltoluene 101 1,3,5-Trimethylbenzene 110 1,2,4-Trimethylbenzene 104 1,3-Dichlorobenzene 96 1,4-Dichlorobenzene 93 alpha-Chlorotoluene 96 1,2-Dichlorobenzene 94 1,2,4-Trichlorobenzene 95 Hexachlorobutadiene 98

Container Type: NA - Not Applicable Method Surrogates %Recovery Limits Toluene-d8 101 70-130 1,2-Dichloroethane-d4 100 70-130 4-Bromofluorobenzene 101 70-130

Page 19 of 19 11/22/2010 Ms. Teresa Nowicki GRI 9725 Southwest Beaverton Hillsdale Highway Suite 140 Beaverton OR 97005

Project Name: BRC Project #: 5144 Workorder #: 1011214B

Dear Ms. Teresa Nowicki

The following report includes the data for the above referenced project for sample(s) received on 11/9/2010 at Air Toxics Ltd.

The data and associated QC analyzed by Modified ASTM D-1946 are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative. Thank you for choosing Air Toxics Ltd. for your air analysis needs. Air Toxics Ltd. is committed to providing accurate data of the highest quality. Please feel free to contact the Project Manager: Karen Lopez at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Karen Lopez Project Manager

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 .FAX (916) 985-1020 Hours 6:30 A.M to 5:30 PST Page 1 of 11 WORK ORDER #: 1011214B

Work Order Summary

RECEIPT FINAL FRACTION # NAME TEST VAC./PRES. PRESSURE 01A C 2 Modified ASTM D-1946 0.0 "Hg 5 psi 02A C 3 Modified ASTM D-1946 0.2 "Hg 5 psi 03A C 1 Modified ASTM D-1946 0.0 "Hg 5 psi 04A Lab Blank Modified ASTM D-1946 NA NA 05A LCS Modified ASTM D-1946 NA NA 05AA LCSD Modified ASTM D-1946 NA NA

CERTIFIED BY: DATE: 11/22/10 Laboratory Director Certfication numbers: CA NELAP - 02110CA, LA NELAP/LELAP- AI 30763, NY NELAP - 11291, UT NELAP - 9166389892, AZ Licensure AZ0719 Name of Accrediting Agency: NELAP/Florida Department of Health, Scope of Application: Clean Air Act, Accreditation number: E87680, Effective date: 07/01/09, Expiration date: 06/30/11 Air Toxics Ltd. certifies that the test results contained in this report meet all requirements of the NELAC standards This report shall not be reproduced, except in full, without the written approval of Air Toxics Ltd. 180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630 (916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020 Page 2 of 11 Laboratory Services Since 1989

LABORATORY NARRATIVE Modified ASTM D-1946 GRI Workorder# 1011214B

Three 6 Liter Summa Canister samples were received on November 09, 2010. The laboratory performed analysis via Modified ASTM Method D-1946 for Helium in air using GC/TCD. The method involves direct injection of 1.0 mL of sample.

Method modifications taken to run these samples are summarized in the table below. Specific project requirements may over-ride the ATL modifications. Requirement ASTM D-1946 ATL Modifications Calibration A single point A 3-point calibration curve is performed. Quantitation is calibration is based on a daily calibration standard which may or may performed using a not resemble the composition of the associated samples. reference standard closely matching the composition of the unknown. Reference Standard The composition of any The standards used by ATL are blended to a >/= 95% reference standard accuracy. must be known to within 0.01 mol % for any component. Sample Injection Volume Components whose The sample container is connected directly to a fixed concentrations are in volume sample loop of 1.0 mL on the GC. Linear range excess of 5 % should is defined by the calibration curve. Bags are loaded by not be analyzed by vacuum. using sample volumes greater than 0.5 mL. Normalization Normalize the mole Results are not normalized. The sum of the reported percent values by values can differ from 100% by as much as 15%, either multiplying each value due to analytical variability or an unusual sample matrix. by 100 and dividing by the sum of the original values. The sum of the original values should not differ from 100% by more than 1.0%. Precision Precision requirements Duplicates should agree within 25% RPD for detections established at each > 5 X's the RL. concentration level.

Page 3 of 11 Laboratory Services Since 1989

Analytical Notes There were no analytical discrepancies.

Definition of Data Qualifying Flags Seven qualifiers may have been used on the data analysis sheets and indicate as follows: B - Compound present in laboratory blank greater than reporting limit. J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the detection limit. M - Reported value may be biased due to apparent matrix interferences. File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector r1-File was requantified for the purpose of reissue

Page 4 of 11 Summary of Detected Compounds NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

Client Sample ID: C 2 Lab ID#: 1011214B-01A Rpt. Limit Amount Compound (%) (%) Helium 0.067 0.30

Client Sample ID: C 3 Lab ID#: 1011214B-02A No Detections Were Found.

Client Sample ID: C 1 Lab ID#: 1011214B-03A No Detections Were Found.

Page 5 of 11 Client Sample ID: C 2 Lab ID#: 1011214B-01A NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111119 Date of Collection: 11/5/10 1:00:00 PM Dil. Factor: 1.34 Date of Analysis: 11/11/10 11:45 AM Rpt. Limit Amount Compound (%) (%) Helium 0.067 0.30

Container Type: 6 Liter Summa Canister

Page 6 of 11 Client Sample ID: C 3 Lab ID#: 1011214B-02A NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111120 Date of Collection: 11/5/10 2:45:00 PM Dil. Factor: 1.35 Date of Analysis: 11/11/10 12:01 PM Rpt. Limit Amount Compound (%) (%) Helium 0.068 Not Detected

Container Type: 6 Liter Summa Canister

Page 7 of 11 Client Sample ID: C 1 Lab ID#: 1011214B-03A NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111121 Date of Collection: 11/5/10 3:40:00 PM Dil. Factor: 1.34 Date of Analysis: 11/11/10 12:11 PM Rpt. Limit Amount Compound (%) (%) Helium 0.067 Not Detected

Container Type: 6 Liter Summa Canister

Page 8 of 11 Client Sample ID: Lab Blank Lab ID#: 1011214B-04A NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111103 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/11/10 08:00 AM Rpt. Limit Amount Compound (%) (%) Helium 0.050 Not Detected

Container Type: NA - Not Applicable

Page 9 of 11 Client Sample ID: LCS Lab ID#: 1011214B-05A NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111102 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/11/10 07:41 AM

Compound %Recovery Helium 98

Container Type: NA - Not Applicable

Page 10 of 11 Client Sample ID: LCSD Lab ID#: 1011214B-05AA NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946

File Name: 9111122 Date of Collection: NA Dil. Factor: 1.00 Date of Analysis: 11/11/10 12:46 PM

Compound %Recovery Helium 98

Container Type: NA - Not Applicable

Page 11 of 11

APPENDIX E Well Survey/Beneficial Use Determination Documentation

October 22, 2010 5144 WATER SURVEY

Property Owner

Attention: Property Owner

SUBJECT: Groundwater Use Survey Regarding Former Burger King Restaurant Property 707 W Burnside Street Portland, Oregon

GRI is a consulting company working with the owner of the property located at 707 W Burnside Street in Portland, Oregon. Prior to development as a Burger King restaurant, the site was an auto repair shop and fueling station with underground storage tanks (USTs). Due to this history, groundwater in the area is impacted by contaminants. Because your property(s) located at ______is within 500 ft of this site, the Oregon Department of Environmental Quality (DEQ) has requested that we complete a survey of past, present, and planned beneficial use of the groundwater at your property.

Please complete the attached survey and return it to the address below by October 30, 2010.

GRI 9725 SW Beaverton-Hillsdale Highway Suite 140 Beaverton, OR 97005

Please contact Teresa Nowicki if you have any questions. Thank you for your assistance.

Sincerely,

George A. Freitag, CEG Teresa A. Nowicki, RG Associate Staff Geologist ([email protected])

Attached: Beneficial Water Use Survey

BENEFICIAL WATER USE SURVEY

Name:

Telephone Number:

Property Address: ______Portland, Oregon

HISTORIC

PROPERTY USE:  Residential  Commercial  Industrial  Agricultural  Recreational  Other:

WATER SOURCE:

 Public Water Supply  Community Well  On-Site Well  Surface Water  Other:

WATER USE:

 Drinking Water  Farm Crop Irrigation  Landscape Irrigation  Livestock  Vegetable Garden  Industrial Process  Heat Pump  Other:

CURRENT

PROPERTY USE:

 Residential  Commercial  Industrial  Agricultural  Recreational  Other:

WATER SOURCE:  Public Water Supply  Community Well  On-Site Well  Surface Water  Other:

WATER USE:  Drinking Water  Farm Crop Irrigation  Landscape Irrigation  Livestock  Vegetable Garden  Industrial Process  Heat Pump  Other:

PLANNED

PROPERTY USE:  Residential  Commercial  Industrial  Agricultural  Recreational  Other:

WATER SOURCE:  Public Water Supply  Community Well  On-Site Well  Surface Water  Other:

WATER USE:  Drinking Water  Farm Crop Irrigation  Landscape Irrigation  Livestock  Vegetable Garden  Industrial Process  Heat Pump  Other:

Additional Comments:

Please complete this survey and return it to the address below by October 30, 2010.

GRI 9725 SW Beaverton-Hillsdale Highway Suite 140 Beaverton, OR 97005

If you have any questions, please contact Teresa Nowicki at GRI, 503-641-3478, [email protected]

200 200

700 600

100

100 100

600

800 700

0 0

800 700 600 500 200 100 100 700

200

200 700

North

0 250 500 FT 500 FT RADIUS

PROJECT - SITE 707 W BURNSIDE STREET, PORTLAND, OREGON 97209

100 BLOCK NUMBER CENTRAL CITY CONCERN G R I BROADWAY RECOVERY CENTER SITE MAP FROM FILE BY HAHN AND ASSOCIATES, INC., DATED NOVEMBER 2009 WATER USE MAP

APR. 2011 JOB NO. 5144 APPENDIX E

APPENDIX F Site-Specific Health and Safety Plan

HEALTH AND SAFETY PLAN

GRI Project No. 5144 Date September 24, 2010 232 NW 6th Avenue Client Central City Concern Address Portland, OR 97209 Client/Site Contact Andy Morris, Walsh Const. Client/Site Phone No. 503-969-0407

Project Location 707 W Burnside Street, Portland, Oregon Project Objectives: Soil, groundwater and soil gas sampling using direct push probe, excavation observation and soil sampling.

Project Manager George Freitag, CEG

Plan Preparer Teresa Nowicki, RG

Site Health and Safety Officer Teresa Nowicki, RG

Hospital/Clinic Legacy Good Samaritan Phone No. 503-413-7711

Hospital Address 1015 NW 22nd Avenue, Portland, Oregon

Paramedic 911 Fire Dept. 911 Police Dept. 911

Emergency/Contingency Plan: Stop work in case of accident or injury. Assess the situation. Render first aid to injured party. Notify project manager. Seek medical attention, if necessary. Call 911 or transport injured person to hospital (see map). In case of evacuation, meet at site entrance on NW Broadway.

Eyewash X Fire Extinguisher X First Aid Kit X

Site Control Measures: Construction fencing

Personal Decontamination Procedures: Not applicable for this work

CHEMICAL HAZARDS AND ACTION LEVELS

Chemical/Compound Expected Water, Soil, Health Hazards Name or Air Concentrations (see Attachment A) Gasoline 10,000 ppm maximum 7, 8, 11, 16, 21

PAHs 1 ppm maximum Ca, 4, 8, 16

Lead 500 ppm maximum 1, 9, 15, 23

VOCs 1 ppm maximum Ca, 7, 8, 11, 16, 20, 21

F-1

PHYSICAL HAZARDS

Heat x Slip, Trip, Fall High Winds

Cold x Noise x Excavations/Trenches

x Rain Underground Hazards x Moving Equipment

x Fog Overhead Hazards Other:

x Traffic

PERSONAL PROTECTIVE EQUIPMENT R = Required A = As Needed

R Hard Hat R Safety Eyewear (Type)

R Safety boots A Respirator (Type)

R Orange Vest Filter Type

A Hearing Protection A Gloves (Latex)

Tyvek Coveralls Other

MONITORING EQUIPMENT

X Photoionization Detector (PID) Oxygen Meter Draeger Tube

Combustible Gas Passive Dosimeter

F-2 HEALTH AND SAFETY PLAN ATTACHMENT A

Chemical Health Effects Target Organs Acetone 4, 6, 8, 11, 16, 21 J, K Aldrin Ca, 2, 3, 7, 11, 15 D, G, I, K Benzene Ca, 1, 4, 8, 11, 15, 17, 18 C, D, E, J, K Carboryl 1, 3, 5, 13, 15, 22 D, J, K Chlordane 1, 3, 5, 15, 22 D, E, G, H, I, K Chloroform Ca, 7, 8, 11, 15 E, G, I, K Coal Tar Naphtha 4, 8, 16 E, J, K DBCP Ca, 8, 15, 16, 21, 22 D, G, I, K DDT Ca, 3, 7, 8, 22 D, G, I, K Dieldrin Ca, 2, 3, 7, 11, 15, 22 D, G, I, K Endrin 1, 3, 7, 15, 22 D, G Ethylbenzene 2, 4, 8, 11 D, E, J, K Ethylene Dibromide Ca, 4, 8, 17 E, G, I, J, K Heptachlor 3 D, G Hexane 4, 8, 10, 11, 12, 16 E, H, J, K Hydrogen Sulfide 2, 3, 7, 8, 9, 11, 17 E, J Lindane 3, 4, 8, 16 B, D, E, G, I, K Malathion 1, 5, 8, 13, 15, 22 B, D, G, J Methane 11, 12, 17, 24 D, H, J Methylene Chloride 8, 9, 12, 14, 21 D, E, J Methyl Ethyl Ketone 7, 8, 11, 16, 22 D, H Parathion 1, 3, 4, 5, 11, 13, 15, 19 B, D, E, J, K PCBs Ca, 4, 8 E, G, K Petroleum Distillates 7, 8, 11, 16, 21 D, E, J, K Phenol 3, 4, 8, 16, 21 G, I, K Tetrachloroethylene Ca, 7, 8, 11, 16, 20 D, E, G, I, J Toluene 4, 6, 11 D, G, I, K 1,1,1-Trichloroethane 4, 8, 11 D, E, K Tricholoethylene Ca, 4, 8, 11, 15, 22 D, G, I, J, K Vinyl Chloride Ca, 1 B, D, G, J Xylene 1, 5, 8, 15, 18, 21 B, D, E, G, I, K

Health Effects Target Organs 1. Abdominal Pain A. Bladder 2. Coma B. Blood 3. Convulsions C. Bone Marrow 4. Dermatitis D. Central Nervous System 5. Diarrhea E. Eyes 6. Dilated Pupils F. Heart 7. Dizziness G. Liver 8. Eye Irritation H. Lungs 9. Fatigue I. Kidneys 10. Giddiness J. Respiratory System 11. Headache K. Skin 12. Light Headed 13. Miosis (Pinpoint Pupils) 14. Narcosis 15. Nausea 16. Nose Irritation 17. Respiratory Irritant 18. Staggering Gait 19. Sweating 20. Tearing 21. Throat Irritation 22. Vertigo 23. Vomiting 24. Asphyxiation Ca. Carcinogen F-3 GENERAL SITE SAFETY PROCEDURES Soil, groundwater and soil gas sampling and observation of earthwork by any field personnel will be conducted using Level D Protection. Level D protection will include:

 Work clothes  Safety boots with steel toe  Hard hat  Safety Glasses  Latex gloves as needed  Ear protection as needed

Sampling activities involve the contractor using a direct push technology probe. Hearing protection will be used while probe is in operation. While probe is in operation, all workers will:

 Avoid pinch points on machine

 Avoid winches and other swinging equipment

Earthwork activities involves the contractor oftentimes using large equipment which has poor visibility and line of site when moving (forward, backwards, turning, or rotating). The following procedures will be used when working around the equipment:

 All workers will be aware of equipment activities in the general vicinity of work at all times.  All workers will avoid the immediate vicinity of the equipment and, if applicable, the swing radius, when the equipment is in use.

 Before approaching any equipment, all workers will make eye contact with equipment operator and wait until equipment has completely stopped and is safe to approach.

5144 HEALTH PLAN CHECKLIST (11-10)

F-4 TAILGATE SAFETY MEETING

Date: Time: GRI Project No.: 5144 Client:

Address:

Site Location:

Scope of Work:

Safety Topics Presented

Protective Clothing/Equipment:

Chemical Hazards:

Physical Hazards:

Special Equipment:

Other: Emergency Procedures:

Hospital: Ambulance Phone: Phone: Hospital Address and Route:

Signature of Site Health and Safety Officer: Date:

ON-SITE SAFETY MEETING ATTENDEES

Signature Name (Printed) Date

F-5 707 W Burnside St, Portland, OR 97209 to Legacy Good Samaritan Medic... http://maps.google.com/maps?f=d&source=s_d&saddr=707+W+Burnside...

Directions to Legacy Good Samaritan Medical Center 1015 NW 22nd Ave, Portland, OR 97210 - (503) 413-7711 1.4 mi – about 5 mins

1 of 2 10/29/2010 6:31 PM 707 W Burnside St, Portland, OR 97209 to Legacy Good Samaritan Medic... http://maps.google.com/maps?f=d&source=s_d&saddr=707+W+Burnside...

707 W Burnside St, Portland, OR 97209

1. Head west on W Burnside St toward NW 8th Ave go 0.1 mi total 0.1 mi 2. Turn right at NW 9th Ave go 0.5 mi About 3 mins total 0.6 mi 3. Turn left at NW Lovejoy St go 0.8 mi About 2 mins total 1.4 mi 4. Turn right at NW 22nd Ave go 144 ft Destination will be on the left total 1.4 mi Legacy Good Samaritan Medical Center 1015 NW 22nd Ave, Portland, OR 97210 - (503) 413-7711

These directions are for planning purposes only. You may find that construction projects, traffic, weather, or other events may cause conditions to differ from the map results, and you should plan your route accordingly. You must obey all signs or notices regarding your route. Map data ©2010 Google, Sanborn Directions weren't right? Please find your route on maps.google.com and click "Report a problem" at the bottom left.

2 of 2 10/29/2010 6:31 PM

APPENDIX G Disposal Receipts

ESB# 926

February 24, 2011 Broadway Recovery Center Dirt Disposal and Recycled Concrete Aggregate

Wilkens Trucking Dirt Disposal—493.58 tons Meadows Rock 100% Recycled Concrete—91.5 tons 1096 N Schmeer Rd Portland, OR 97217

Scappoose Sand & Gravel Dirt Disposal—3920.80 tons 33485 Columbia Rd. Scappoose, OR 97056

Portland Sand & Gravel Dirt Disposal—4212 tons 10717 SE Division St 100% Recycled Concrete—62.40 tons Portland, OR 97266

Fazio Landfill & Recycling Dirt Disposal—599.26 tons 8433 NE 13th Ave 100% Recycled Concrete—37.72 tons Portland, OR 97211

Cemex 100% Recycled Concrete—1665.88 tons 5225 N. Channel Ave Portland, OR 97217

Iron Horse 100% Recycled Concrete—3063.34 tons Carlies Yard 1201 NW Naito Parkway Portland, OR

Waste Management Contaminated Soil—652.20 tons Hillsboro Landfill 3205 SE Minter Bridge Rd Hillsboro, OR 97123

All of the above products are picked up or disposed of at the above sites.

APPENDIX H Buried Tank Removal Documentation (Soil Solutions, Inc.)

APPENDIX I Site Photographs

Site during demolition (9/14/2010) Photograph taken looking southwest.

Site during demolition (9/14/2010) Photograph taken looking northwest.

Broadway Recovery Clinic / Site Photographs I-1 Photographs taken September and October, 2010

Tank removed from beneath NW Broadway sidewalk (9/28/2010) Tank positioned in orientation in ground. Photograph taken looking southeast.

Leaking UST excavation (9/29/2010) Depth of excavation is 21 ft. Photograph taken looking north.

Broadway Recovery Clinic / Site Photographs I-2 Photographs taken September and October, 2010

Contaminated fill area (10/19/2010) After removal of initial 3 ft. Photograph taken looking northwest.

Overexcavation in area of contaminated fill (10/19/2010) Exposure of concrete slab at depth of 8 ft.

Broadway Recovery Clinic / Site Photographs I-3 Photographs taken September and October, 2010

East sidewall in contaminated fill area (10/19/2010) Photograph taken prior to removal of contaminated fill.

Broadway Recovery Clinic / Site Photographs I-4 Photographs taken September and October, 2010