Phase II Environmental Site Assessment Boys and Girls Club

Phase II

Environmental Site Assessment

Boys and Girls Club 9330 SE Harold Street

Portland, Oregon

October 1, 2010

Prepared for

Portland Development Commission Portland, Oregon

333 SW 5th Avenue, Suite 700 Portland, OR 97204 (503) 542-1080 TABLE OF CONTENTS

Page

INTRODUCTION 1

BACKGROUND 1

WORK PERFORMED 2

ANALYTICAL RESULTS 4

CONCLUSIONS AND RECOMMENDATIONS 5

USE OF THIS REPORT 6

REFERENCES 8

FIGURES

Figure Title

1 Vicinity Map 2 Anomalies and Subsurface Investigation Locations

TABLES

Table Title

1 Summary of Geophysical Anomaly Exploration 2 Test Pit Analytical Results 3 Soil Boring Analytical Results

APPENDICES

Appendix Title

A Photograph Log B Boring Logs and Geotechnical Hole Reports C Laboratory Analytical Reports

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES ii INTRODUCTION

This report summarizes the findings of a focused Phase II Environmental Site Assessment (ESA) conducted for the Lents Boys and Girls Club of Portland located at 9330 SE Harold Street in Portland, Oregon (subject property, Figure 1). The focused Phase II ESA was conducted by Landau Associates for the Portland Development Commission (PDC), based on the statement of work outlined in our scope of work dated July 28, 2010. This report summarizes the field activities conducted during the Phase II ESA and discusses the investigation findings and results. Conclusions based on the findings and recommendations for further action, as appropriate, are also included.

BACKGROUND

The Phase I ESA performed by Landau Associates (Landau Associates 2010) revealed evidence of two recognized environmental conditions in connection with the subject property: • Between 1935 and 1970, a gasoline/service station was located on the northeast corner of SE Harold Street and SE 92nd Avenue, directly across SE Harold Street from the subject property. No information regarding the presence or absence of contamination or underground storage tanks (USTs) associated with the historic gasoline/service station was found. Borings along the northern property boundary, across SE Harold Street from the historic gasoline/service station property were recommended to determine that no contamination had impacted the subject property.

• Five anomalies were identified during a geophysical survey conducted by Earth Dynamics on the subject property (Figure 2). Each anomaly appeared to be due to the presence of discrete buried objects. Based on historical information, Anomaly D located in the eastern portion of the subject property was identified as a possible heating oil UST.

At the request of PDC, a limited geophysical survey of the subject property was conducted by Earth Dynamics using ground penetrating radar (GPR) and time-domain electromagnetic surveys. As part of the survey, GPR was used on the north side of the main building where a storm drainage plan from 2001 indicated that an Oil Tank Access point was located near the northwest corner of the gymnasium. The GPR survey identified a small anomaly; approximately 10 inches in diameter and approximately 18 inches below the sidewalk in this area, but the location did not correspond to the location of the former underground heating oil tank (HOT) based on available blueprints. Earth Dynamics interpreted the anomaly to be a buried piece of debris based on the size and shallow depth, and this area was not considered to be a recognized environmental condition. The purpose of the Phase II ESA was to evaluate the geophysical anomalies, and determine the presence or absence of contamination from the historic gasoline/service station to address the recognized environmental conditions identified in the Phase I ESA. In addition, while not a recognized

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 1 environmental condition, PDC asked Landau Associates to advance subsurface borings in the vicinity of the former underground HOT on the north side of the building along SE Harold Street to document soil quality and assess possible impacts from the former underground HOT. The details of the field activities and the results of the sampling are discussed below.

WORK PERFORMED

The Phase II ESA was conducted by a Landau Associates representative and was completed over the course of two days; one day of test pit explorations and one day of shallow direct-push borings. Below is a summary of the field activities.

Test Pits Landau Associates met a representative from C&W Grading at the project site to excavate test pits in the immediate vicinity of the geophysical anomalies (Figure 2) on August 4, 2010. A backhoe was used to excavate to the approximate depth of each anomaly. A summary of the geophysical anomalies, coordinates, and exploration findings can be found in Table 1. A photograph log of the anomalies and test pits has been included as Appendix A. All anomalies were explored and a test pit excavated with the exception of Anomaly C. Anomaly C was not explored for three reasons: 1) children were present on a playground in close proximity to the anomaly, thereby limiting access with an excavator, 2) there was a concern that excavation would damage the stormwater drainage system unnecessarily, and 3) upon closer inspection Anomaly C was determined to be a part of the stormwater drainage system from the roof of the Boys and Girls Club. Based on these observations, it was decided that Anomaly C’s function did not represent an environmental concern for the property. Observations from excavations from the other anomalies are discussed below. Anomaly A is located in the parking lot near the northeast corner of the former Lents little league concession stand was located, approximately 48 feet (ft) south of NE Harold Street, and 75 ft west of the Boys and Girls Club. Below the 4-inch layer of asphalt was an additional 6-inch layer of concrete. The test pit was excavated to a depth of approximately 4 ft below ground surface (BGS) exposing what appeared to be native sandy gravel. Earth Dynamics described the anomaly as approximately 1 ft BGS (Landau Associates 2010), which could have been attributed to rebar in the concrete found immediately beneath that asphalt. No evidence of an anomaly related to a recognized environmental condition was found. Samples were collected from the four side walls and bottom of the test pit and submitted to the lab to be held for composite and further analysis. PDC requested that these samples not be analyzed. Anomaly B is located near second base of the northern most baseball diamond, and approximately 100 ft southwest of the southwestern corner of the recreation center. A metal covered

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 2 wooden fire door was found approximately 2.5 ft BGS amongst bricks, old mortar, and ash. Beneath the 3-ft by 7-ft door is a 10-inch layer of blue-colored ash. Below the ash is a concrete slab with 38-inch square scoring marks. Sample TP-B Ash was collected from the ash/soil mixture (predominantly ash) and submitted for polyaromatic hydrocarbons (PAHs), Resource Conservation and Recovery Act (RCRA) metals, and toxicity characteristic leaching procedure (TCLP) lead analyses. Anomaly D is located on the eastern property boundary (north of the southeast baseball diamond. A hollow metal surface was found 3 ft BGS. The metal surface was cleared to reveal a tank 8 ft long oriented north to south, 3.5 ft wide, and 3.5 ft deep. A fill port on the south end of the top of the tank was accessed and revealed the presence of approximately 6.5 inches of clear product in the tank with a strong petroleum odor resembling kerosene. No soil staining or odor was observed in the soil around the tank. A bent pipe on the north end of the top of the tank may have been the connective piping from the tank to a historic building. Samples TP-D North and TP-D South were collected from approximately 6 inches below the bottom of the tank on end, north and south respectively. Samples were submitted for total petroleum hydrocarbon (TPH) analysis by method NWTPH-HCID. Within the Anomaly D test pit a broken piece of iron pipe was found on the south side of the excavation. The pipe was approximately 3 ft long and did not appear to connect to the tank or anything beyond the edges of the test pit. The pipe was located approximately 3 ft BGS and oriented east to west. Anomaly E is located between first base and the pitcher’s mound of the southeast baseball diamond. The excavation started near first base and uncovered a 4-inch iron pipe approximately 2 ft BGS oriented west to southwest. The eastern end of the pipe is buried in concrete. To the west, approximately 15 ft from the beginning of the trench, the pipe connects to an 8-inch concrete pipe that extends to a depth of approximately 5 ft BGS. The pipe terminates at a dry well approximately 14 ft deep from its opening and is lined with red bricks (see photograph on page A-4 of Appendix A). A hand auger was used to collect a sediment sample from the bottom of the dry well with the consistency of soft, brown silt. The sample collected from the bottom of the dry well was submitted for RCRA metals and TPH-HCID analyses.

Shallow Direct-Push Borings Five shallow direct-push borings were advanced to depths ranging between 13 and 15 ft BGS along the northern portion of the property boundary (Figure 2) on August 23, 2010. Drilling services were provided by Cascade Drilling LLP (Cascade Drilling) of Portland, Oregon. Direct-push boring locations B-1 through B-4 are located on the north side of the parking lot in the northwest corner of the property, across from the former service station located on SE Harold Street. Direct-push boring location B-5 is located in the sidewalk north of the northwest corner of the gymnasium

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 3 in the vicinity of the former underground HOT. The drilling in the vicinity of the former underground HOT was very limited due to the number of utilities present along the west, south and east sides of the former underground HOT. It was noted there was strong interference encountered in this area during utility locating, not allowing for an accurate utility locate. Field observations also suggest that a void appears to be present under the sidewalk in the area of the former underground HOT based on reverberation and a hollow sound when a foot as stamped upon the ground. Continuous soil core samples from each boring were observed and field screened for contamination using visual, olfactory, photoionization detector techniques, and sheen testing. Evidence of contamination was not observed at any boring locations during field screening activities. The soil cores were logged in accordance with the Unified Soil Classification System. A detailed log was prepared for each boring and is included as Appendix B along with the geotechnical hole reports. The geology encountered included sandy silts underlain by sands and gravels. Saturated conditions were encountered in borings B-1, B-2, B-3, and B-4 between 13 and 14 ft BGS. Temporary PVC screens were placed in the open boreholes in order to attempt collection of a groundwater sample. However, water did not enter into the borehole and groundwater samples were not collected. One soil sample was collected at the completion depth from each of the five borings, which ranged in depth from 13 to 15 ft BGS. The soil sample collected from boring B-5 was located approximately 2 ft off the northeast corner of the tank. All soil boring samples were submitted for TPH analysis by Method NWTPH-HCID.

ANALYTICAL RESULTS

All samples were placed into laboratory-supplied containers, packed in ice, and submitted to Apex Laboratories located in Tigard, Oregon for analysis. A summary of the analytical results can be found in Tables 2 and 3. The laboratory analytical reports are included as Appendix C. Samples were analyzed from the three test pits locations associated with Anomalies B, D, and E (Table 2). Results are summarized below: • A sample of the ash-like material was collected from Anomaly B and analyzed for PAHs, RCRA metals, and TCLP lead. There were detections of twelve PAHs, three metals (barium, chromium, and lead), and TCLP lead found in the Anomaly B sample. As this sample was collected from material above the native soils and represents a characterization of a product or source material (i.e., the ash itself), it would be inappropriate to compare these results against Oregon Department of Environmental Quality’s (DEQ’s) Risk-Based Concentrations (RBCs). It would be more appropriate to use these analytical results to evaluate disposal options.

• Two soil samples were collected from the test pit associated with Anomaly D. Samples were collected from either end of the observed UST and analyzed for TPH by Method

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 4 NWTPH-HCID. There were no detections in either soil sample from this location indicating that the UST is intact.

• One sediment sample was collected from the bottom of the dry well discovered in during excavation of Anomaly E. The sample was submitted for analysis of TPH by Method NWTPH-HCID, and for RCRA metals by EPA Method 6020. There were detections of TPH (oil-range organics) and six metals (arsenic, barium, chromium, lead, mercury, and silver). The detection of oil-range organics at a concentration of 425 mg/kg is far below the respective DEQ residential direct contact RBC of 9,800 mg/kg. Detections of arsenic at a concentration 17.6 mg/kg is above the DEQ residential direct contact RBC of 0.39 mg/kg. In addition, total chromium was detection at 51.2 mg/kg, below the trivalent chromium DEQ residential direct contact RBC of >100,000 mg/kg, but just above the hexavalent chromium DEQ residential direct contact RBC of 38 mg/kg. None of the other metal detections was above RBCs.

The five soil samples collected from the shallow direct-push borings were analyzed for TPH by Method NWTPH-HCID. There were no detections of TPH in any of the direct-push boring soil samples (Table 3).

CONCLUSIONS AND RECOMMENDATIONS

The Phase II ESA investigated five anomalies (A, B, C, D, and E). A summary of each anomaly, findings, and recommendations follow. • Nothing of environmental significance was identified in association with Anomaly A as the detection of the anomaly during the geophysical survey was likely due to the presence of rebar in concrete.

• The test pit excavation at Anomaly B revealed a fire door and an ash-like material. The sample collected from the test pit at the Anomaly B location was of the ash-like material and does not represent the surrounding soils. There were detections of twelve PAHs, three metals (barium, chromium, and lead), and TCLP lead. Based on field observation, it is unlikely that the surrounding soils are significantly impacted, as the ash-like material was located on top of a concrete slab. The analytical results from the sample may be used to identify appropriate disposal options for the material.

Landau Associates recommends removal of the ash-like material and debris from the excavated area, along with the collection of post-excavation samples for analysis by EPA Method 8270 for PAHs, and RCRA metals for confirmatory purposes.

• Anomaly C was not explored for three reasons: 1) children were present on a playground in close proximity to the anomaly, thereby limiting access with an excavator, 2) there was a concern that excavation would damage the stormwater drainage system unnecessarily, and 3) upon closer inspection Anomaly C was determined to be a part of the stormwater drainage system from the roof of the Boys and Girls Club. Based on these observations, it was decided that Anomaly C’s function did not represent an environmental concern for the property.

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 5 • The test pit excavation at Anomaly D revealed the presence of a UST. Two soil samples were collected from either end of the UST and submitted for TPH analysis. There were no visible stains or odors observed in the surrounding soils and no TPH detected. Approximately 6.5 inches of clear product in the UST with a strong petroleum odor resembling kerosene was present.

Landau Associates recommends that the UST be properly decommissioned per current Oregon Administrative Rule (OAR Chapter 340, Division 122) by either removal or decommissioning in-place. It is most common to decommission tanks by removal, as specific conditions must be met to leave the tank in place, including filling the tank with inert sand or gravel.

• The test pit excavation at Anomaly E revealed sub-grade piping and a 14-ft deep, brick-lined dry well. A soil sample from the bottom of the dry well had detections of TPH (oil-range organics) below DEQ residential direct-contact RBCs. Of the six metals detected, only arsenic and total chromium were detected above their respective RBCs. Similar to the ash- like sample collected from Anomaly B, the results of this sample is representative of the sediment in the dry well as opposed to the surrounding soils. These analytical results may be used to evaluate disposal options in the event the dry well is removed.

Landau Associates recommends removal of the drywell, sediments, and associated piping from the excavated area, along with the collection of post-excavation samples for analysis by NWTPH-HCID and RCRA metals for confirmatory purposes.

• Five shallow direct-push borings were advanced in order to determine the presence or absence of possible contamination from the historic gasoline/service station located across SE Harold Street and from the former underground HOT off the northeast portion of the recreation building. One soil sample was collected at the completion depth from each of the five borings, which ranged in depth from 13 to 15 ft BGS and analyzed for TPH. The results of all five soil samples analyzed for TPH were nondetect. Field observations made during the investigation noted that a void appears to be present under the sidewalk in the area of the former underground HOT, indicating that the former underground HOT is likely still in place.

Landau Associates recommends additional research regarding the history and closure of this underground HOT prior to intrusive work. The Phase I ESA indicated that the UST was decommissioned; however, field observations do not correlate with this assessment. If decommissioning was not performed, or is incomplete, Landau Associates recommends that the underground HOT be properly decommissioned per current regulations (OAR Chapter 340, Division 177) either by removal or decommissioning in-place.

USE OF THIS REPORT

This report has been prepared for the exclusive use of PDC for specific application to the evaluation of soil conditions around the Lents Boys and Girls Club of Portland located at 9330 SE Harold Street in Portland, Oregon. No other party is entitled to rely on the information, conclusions, and recommendations included in this document without the express written consent of PDC and Landau

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REFERENCES

Landau Associates. 2010. Phase I Environmental Site Assessment, Boys and Girls Club, 9330 SE Harold Street, Portland, Oregon. Prepared for PDC. July 23.

10/1/10 I:\PROJECTS\1095\006\020\FILERM\R\FINAL PHASE II ESA\PHASE II ESA_RPT_FINAL.DOCX LANDAU ASSOCIATES 8 Cherry Park Mill Park Mount Tabor Park Harrison Park

60th Division

Division Clinton Park

Kelly Butte Park

112th

Eastport Plaza Shopping Center Ed Benedict Park Essex Park Kern Park

122nd Earl Boyles Park Holgate Laurelwood Park Gilbert Heights Park Foster Holgate

Lents Park Subject Property Raymond Park Portland Bloomington Park

Mt Scott Park

72nd Woodstock Foster Beggars Tick Wildlife Refuge

Foster

Brentwood Park Glenwood Park Leach Botanical Garden

213 205

Flavel

Flavel Park

62nd Mount Scott

Harney Park

Happy Valley

MilwaukieFlavel Alberta

Bell Johnson Creek Tacoma

Subject Portland Property Salem 0 0.5 1

Eugene Bend Miles O r e g o n

Medford Klamath Falls Data Source: ESRI 2006

Figure Y:\Projects\1095006\Mapdocs\Fig1.mxd 6/9/2010 Y:\Projects\1095006\Mapdocs\Fig1.mxd Boys and Girls Club Portland Development Commission Vicinity Map Portland, Oregon 1 Former Service Station

SE HAROLD ST Former B-4 B-3 B-5 B-2 B-1 Underground UST Anomaly A Concrete Slab

Residences Former Gym Concession Recreation Stand

SE 92ND AVE Center

Playground

Anomaly C Roof Drainage Pipe, Not Explored Anomaly B

Fire Door and Ash MAX Light Rail Line

1-205 Bike Path

Anomaly D UST with Approx. 6-inches of Product

Anomaly E Approx. Dry Well Location

Legend

Direct-Push Boring Location Note 1. Black and white reproduction of this color Location of Possible UICs 0 80 160 original may reduce its effectiveness and lead to incorrect interpretation. Geophysical Anomaly and Test Pit Location Scale in Feet Subject Property Boundary

Data Source: Google Earth Imagery; City of Portland GIS; Earth Dynamics

Figure Y:\Projects\1095006\Mapdocs\Fig2-ProposedLocations.mxd 10/1/2010 NAD 10/1/2010 North 1983 Oregon 3601 StatePlane Feet FIPS Y:\Projects\1095006\Mapdocs\Fig2-ProposedLocations.mxd Boys and Girls Club Portland Development Commission Anomalies and Subsurface Portland, Oregon Investigation Locations 2 TABLE 1 Page 1 of 1 SUMMARY OF GEOPHYSICAL ANOMALY EXPLORATION 9330 SE HAROLD STREET PHASE II SOIL INVESTIGATION PORTLAND, OREGON

Coordinates (DD) Samples Anomaly Description Field Observations Analyses Comments Latitude Collected Longitude

Strong GPR reflection about 1 Excavation in the parking lot revealed a None recommended. Soil samples were collected from each 45.48263 concrete slab beneath the asphalt at a depth Samples were held at A ft below the asphalt surface TP-A side wall and bottom of the excavation. -122.58034 of 1 ft below grade. No other materials or the laboratory for objects were found. potential analyses.

Pipe-like anomaly 3 to 4 ft Excavation revealed the presence of what Soil samples were collected of the ash- 45.48220 PAHs, Metals, and B deep. Appears to be oriented appeared to be a fire door and ashy soils TP-B Ash like material. -122.58024 TCLP Lead north to south, but does not consistent with remnants of a fire. extend more than 10 ft.

Not explored with GPR. 6- The decision not to explore this anomaly inch diameter cast iron pipe was made based on limited access and the 45.48232 on surface. close proximity of children playing nearby at C -122.56987 the Boys and Girls Club. Upon further None collected. None recommended. inspection, the presence of the 6-inch cast iron pipe is likely related to a stormwater drainage system at the Anomaly C location.

An UST was found as indicated by the GPR data indicates that this Samples were collected from each end GPR/EM survey at a depth of 3 ft below anomaly is likely an UST. of the UST in accordance with HOT ground surface. The tank is 8-ft long and 3 Top of the object is regulations. No sample of the product 45.48185 ½ ft wide and deep. There is approximately TP-D North D approximately 3 ft below TPH-HCID within the tank was collected to reduce -122.57112 6 inches of clear product in the tank with a TP-D South ground surface. the potential for cross contamination of strong petroleum odor resembling kerosene. other samples. No staining was observed on the outside of the tank.

Pipe-like anomaly appears to Excavation along a cast iron pipe lead to a A sample was collected from the 45.48164 be 3 to 4 feet deep, oriented concrete pipe and what appeared to be a bottom of the dry well using a hand E TP-E TPH-HCID and Metals -122.57095 east to west, but does not brick-lined dry well that extends to a depth of auger. The soil retrieved was soft, appear to extend more than 14 ft below ground surface. brown silt. 10 ft.

Notes: ft = feet DD = decimal degrees UST = underground storage tank TPH-HCID = total petroleum hydrocarbon – hydrocarbon identification PAHs = polyaromatic hydrocarbons TCLP = toxicity characteristic leaching procedure

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TP-B Ash TP-D North TP-D South TP-E 2.5 ft BGS 6.5 ft BGS 6.5 ft BGS 19 ft BGS A10H071-01 A10H071-04 A10H071-05 A10H071-02 8/4/2010 8/4/2010 8/4/2010 8/4/2010

Hydrocarbon Identification (HCID) Method NWTPH (mg/kg)

Gasoline-Range Organics NA 21.3 U 21.1 U 43.8 U Diesel-Range Organics NA 53.3 U 52.8 U 109 U Oil-Range Organics NA 107 U 106 U 425

Polyaromatic Hydrocarbons Method EPA 8270D SIM (mg/kg)

Acenaphthene 9.8 U NA NA NA Acenapthylene 24.9 NA NA NA Anthracene 12.4 NA NA NA Benz(a)anthracene 37.3 NA NA NA Benzo(a)pyrene 54.6 NA NA NA Benzo(b+k)fluoranthene(s) 87.5 NA NA NA Benzo(g,h,i,)perylene 70.6 NA NA NA Chrysene 53.5 NA NA NA Dibenz(a,h)anthracene 13.6 NA NA NA Fluoranthene 85.3 NA NA NA Fluorene 9.8 U NA NA NA Indeno(1,2,3-cd)pyrene 67.7 NA NA NA Naphthalene 19.5 U NA NA NA Phenanthrene 56.8 NA NA NA Pyrene 86.5 NA NA NA

Total Metals Method EPA 6020 (mg/kg)

Arsenic 2.35 U NA NA 17.6 Barium 183 NA NA 621 Cadmium 1.17 U NA NA 2.38 U Chromium 4.69 NA NA 51.2 Lead 90.5 NA NA 262 Mercury 0.0939 U NA NA 3.72 Selenium 2.35 U NA NA 4.77 U Silver 1.17 U NA NA 11.7

TCLP Metals Method EPA 6020 (mg/kg)

Lead 0.197 NA NA NA

mg/kg = milligrams per kilogram ft BGS = feet below ground surface U = Indicates the compound was not detected at the reported concentration. NA = Not Analyzed Bold = Detected compound TCLP = Toxicity Characteristic Leaching Procedure

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B-1 B-2 B-3 B-4 B-5 14 ft BGS 13 ft BGS 15 ft BGS 15 ft BGS 13 ft BGS A10H338-01 A10H338-02 A10H338-03 A10H338-04 A10H338-05 8/23/2010 8/23/2010 8/23/2010 8/23/2010 8/23/2010 Hydrocarbon Identification (HCID) Method NWTPH (mg/kg)

Gasoline-Range Organics 20.5 U 23.3 U 22.1 U 21.4 U 20.8 U Diesel-Range Organics 51.1 U 58.3 U 55.3 U 53.5 U 52.1 U Oil-Range Organics 102 U 117 U 111 U 107 U 104 U

mg/kg = milligrams per kilogram ft BGS = feet below ground surface U = Indicates the compound was not detected at the reported concentration.

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APPENDIX A

Photograph Log

Anomaly A. Test pit located in the parking lot near the Lents Anomaly B. Test pit with fire door. little league concession stand. A layer of concrete under the asphalt is thought to have been the source of the anomaly. Appendix A Appendix 10/1/10 Boys and Girls Club Figure Portland Development Commission Site Photographs Portland, Oregon A-1 10/1/10 Appendix A fire door. fire the off chipped material the of flakes black and the photo the of side left on the visible are Anomaly B. The ash layer below the fire door. fire belowthe B. layer The Anomalyash visible in the test pit. test the in visible moved top door the to beingpile.B. The the of Anomalyfire stock Portland Development Development Portland Boys and Girls Club Boysand Girls Portland, Oregon Portland, Commission The edges where the door was removed removed was door the where edges The Site Photographs The ash layer is is layer ash The A Figure - 2 10/1/10 Appendix A the tank and analyzed for TPH for andanalyzed the tank of end each from collected were samples exposed, tank underground The D. Anomaly Anomaly C. No excavation or samples collected. samples or excavation No C. Anomaly Portland Development Development Portland Boys and Girls Club Boysand Girls Portland, Oregon Portland, Commission - HCID. Site Photographs A Figure - 3 10/1/10 Appendix A top to bottom. to top drywell. the of inside The E. Anomaly drywell. pipe connected aconcrete to pipe ended E. The that Anomalyiron cast in a14- Portland Development Development Portland The soil at the bottom of the drywell was a soft silt. soft a was drywell the of bottom the at soil The Boys and Girls Club Boysand Girls Portland, Oregon Portland, Commission The sides appeared to be lined with red brick from from appeared brick red withsides belinedThe to Site Photographs foot deep foot A Figure - 4 10/1/10 Appendix A Anomaly E. The broken concrete elbow at the top of the drywell. the of top the at elbow concrete broken The E. Anomaly Portland Development Development Portland Boys and Girls Club Boysand Girls Portland, Oregon Portland, Commission Site Photographs A Figure - 5

APPENDIX B

Boring Logs and Geotechnical Hole Reports

Soil Classification System USCS MAJOR GRAPHIC LETTER TYPICAL DIVISIONS SYMBOL SYMBOL(1) DESCRIPTIONS (2)(3) GRAVEL AND CLEAN GRAVEL GW Well-graded gravel; gravel/sand mixture(s); little or no fines GRAVELLY SOIL (Little or no fines) GP Poorly graded gravel; gravel/sand mixture(s); little or no fines (More than 50% of GRAVEL WITH FINES GM Silty gravel; gravel/sand/silt mixture(s) coarse fraction retained (Appreciable amount of on No. 4 sieve) fines) GC Clayey gravel; gravel/sand/clay mixture(s) SAND AND CLEAN SAND SW Well-graded sand; gravelly sand; little or no fines SANDY SOIL (Little or no fines) SP Poorly graded sand; gravelly sand; little or no fines (More than 50% of SAND WITH FINES Silty sand; sand/silt mixture(s) coarse fraction passed SM

(More than 50% of material is (Appreciable amount of COARSE-GRAINED SOIL COARSE-GRAINED larger than No. 200 sieve size) through No. 4 sieve) fines) SC Clayey sand; sand/clay mixture(s) Inorganic silt and very fine sand; rock flour; silty or clayey fine SILT AND CLAY ML sand or clayey silt with slight plasticity Inorganic clay of low to medium plasticity; gravelly clay; sandy CL clay; silty clay; lean clay (Liquid limit less than 50) OL Organic silt; organic, silty clay of low plasticity Inorganic silt; micaceous or diatomaceous fine sand SILT AND CLAY MH CH Inorganic clay of high plasticity; fat clay (More than 50% of No. 200 sieve size) (Liquid limit greater than 50) material is smaller than

FINE-GRAINED SOIL OH Organic clay of medium to high plasticity; organic silt HIGHLY ORGANIC SOIL PT Peat; humus; swamp soil with high organic content

GRAPHIC LETTER OTHER MATERIALS SYMBOL SYMBOL TYPICAL DESCRIPTIONS PAVEMENT AC or PC Asphalt concrete pavement or Portland cement pavement ROCK RK Rock (See Rock Classification) WOOD WD Wood, lumber, wood chips DEBRIS DB Construction debris, garbage Notes: 1. USCS letter symbols correspond to symbols used by the Unified Soil Classification System and ASTM classification methods. Dual letter symbols (e.g., SP-SM for sand or gravel) indicate soil with an estimated 5-15% fines. Multiple letter symbols (e.g., ML/CL) indicate borderline or multiple soil classifications. 2. Soil descriptions are based on the general approach presented in the Standard Practice for Description and Identification of Soils (Visual-Manual Procedure), outlined in ASTM D 2488. Where laboratory index testing has been conducted, soil classifications are based on the Standard Test Method for Classification of Soils for Engineering Purposes, as outlined in ASTM D 2487. 3. Soil description terminology is based on visual estimates (in the absence of laboratory test data) of the percentages of each soil type and is defined as follows: Primary Constituent: > 50% - "GRAVEL," "SAND," "SILT," "CLAY," etc. Secondary Constituents: > 30% and <_ 50% - "very gravelly," "very sandy," "very silty," etc. > 15% and <_ 30% - "gravelly," "sandy," "silty," etc. Additional Constituents: > 5% and <_ 15% - "with gravel," "with sand," "with silt," etc. <_ 5% - "with trace gravel," "with trace sand," "with trace silt," etc., or not noted. 4. Soil density or consistency descriptions are based on judgement using a combination of sampler penetration blow counts, drilling or excavating conditions, field tests, and laboratory tests, as appropriate. Drilling and Sampling Key Field and Lab Test Data SAMPLER TYPE SAMPLE NUMBER & INTERVAL Code Description Code Description a 3.25-inch O.D., 2.42-inch I.D. Split Spoon PP = 1.0 Pocket Penetrometer, tsf b 2.00-inch O.D., 1.50-inch I.D. Split Spoon Sample Identification Number TV = 0.5 Torvane, tsf c Shelby Tube PID = 100 Photoionization Detector VOC screening, ppm d Grab Sample Recovery Depth Interval W = 10 Moisture Content, % e Single-Tube Core Barrel D = 120 Dry Density, pcf 1 Sample Depth Interval f Double-Tube Core Barrel -200 = 60 Material smaller than No. 200 sieve, % g 2.50-inch O.D., 2.00-inch I.D. WSDOT Portion of Sample Retained GS Grain Size - See separate figure for data h 3.00-inch O.D., 2.375-inch I.D. Mod. California for Archive or Analysis AL Atterberg Limits - See separate figure for data i Other - See text if applicable GT Other Geotechnical Testing 1 300-lb Hammer, 30-inch Drop CA Chemical Analysis 2 140-lb Hammer, 30-inch Drop 3 Pushed Groundwater 4 Vibrocore (Rotosonic/Geoprobe) Approximate water level at time of drilling (ATD) 5 Other - See text if applicable Approximate water level at time other than ATD 9/15/10 I:\MODELING\GINT\PROJECTS\1095006.020.GPJ SOIL CLASS SHEET SOIL CLASS 9/15/10 I:\MODELING\GINT\PROJECTS\1095006.020.GPJ Boys and Girls Club Figure Portland Development Commission Soil Classification System and Key Portland, Oregon B-1 B-1

SAMPLE DATASOIL PROFILE GROUNDWATER

TM Drilling Method: Geoprobe

Ground Elevation (ft):

Drilled By: Cascade Drilling Inc. Depth (ft) Sample Number & Interval Sampler Type Blows/Foot Test Data Symbol Graphic USCS Symbol Water Level 0 AC Asphalt Base coarse gravel 0.0 ML Brown-red, SILT with fine sand (medium stiff, damp) 2 S-1 d3 0.0

4 0.0

GP/ Brown-gray, silty, sandy, fine GRAVEL GM (medium dense, moist) 6

S-2 d3 0.0

SP Brown-gray, gravelly SAND, with trace silt 10 (dense, moist)

12 0.0

S-3 d3 14 ATD Wet 0.0

Boring Completed 08/23/10 Total Depth of Boring = 15.0 ft. 16

20 Notes: 1. Stratigraphic contacts are based on field interpretations and are approximate. 2. Reference to the text of this report is necessary for a proper understanding of subsurface conditions. 3. Refer to "Soil Classification System and Key" figure for explanation of graphics and symbols. 1095006.02 9/15/10 I:\MODELING\GINT\PROJECTS\1095006.020.GPJ SOIL BORING LOG SOIL BORING 1095006.02 9/15/10 I:\MODELING\GINT\PROJECTS\1095006.020.GPJ Boys and Girls Club Figure Portland Development Commission Log of Boring B-1 Portland, Oregon B-2 B-2

SAMPLE DATASOIL PROFILE GROUNDWATER

TM Drilling Method: Geoprobe

Ground Elevation (ft):

Drilled By: Cascade Drilling Inc. Depth (ft) Sample Number & Interval Sampler Type Blows/Foot Test Data Symbol Graphic USCS Symbol Water Level 0 AC Asphalt Base coarse gravel ML Brown-red, fine sandy SILT (medium stiff, damp) 2 0.0 S-1 d3

4 0.0

0.0 6

SM Brown-red, silty, fine SAND (loose, damp)

8 S-2 d3 0.0

SP Brown-gray, gravelly SAND, with trace silt; 10 fine gravels, fine to medium sands (dense, moist)

0.0 12

S-3 0.0 ATD Wet 14

Boring Completed 08/23/10 Total Depth of Boring = 15.0 ft. 16

SAMPLE DATASOIL PROFILE GROUNDWATER

TM Drilling Method: Geoprobe

Ground Elevation (ft):

S-1 d3 0.0

4 0.0

0.0 8 S-2 d3 GP/ Brown-gray, silty, sandy, fine to coarse 0.0 GM GRAVEL (medium dense, moist)

12 0.0

S-3 d3 ATD Wet

14 0.0

Boring Completed 08/23/10 Total Depth of Boring = 15.0 ft. 16

SAMPLE DATASOIL PROFILE GROUNDWATER

TM Drilling Method: Geoprobe

Ground Elevation (ft):

Drilled By: Cascade Drilling Inc. Depth (ft) Sample Number & Interval Sampler Type Blows/Foot Test Data Symbol Graphic USCS Symbol 0 AC Asphalt Base coarse gravel Groundwater not encountered. ML Brown-red, fine sandy SILT (medium stiff, damp) 2 0.0 S-1 d3

4 0.0

0.0 6

0.0

8 S-2 d3

GP/ Brown-gray, silty, sandy, fine to medium 0.0 GM GRAVEL; fine to coarse sands (medium dense, damp)

0.0 12

S-3 d3 0.0

14 0.0

Boring Completed 08/23/10 Total Depth of Boring = 15.0 ft. 16

SAMPLE DATASOIL PROFILE GROUNDWATER

TM Drilling Method: Geoprobe

Ground Elevation (ft):

Drilled By: Cascade Drilling Inc. Depth (ft) Sample Number & Interval Sampler Type Blows/Foot Test Data Symbol Graphic USCS Symbol 0 AC Asphalt Base coarse gravel Groundwater not encountered.

ML Brown-red, sandy SILT (soft, damp)

4 S-1 d3 0.0

6 GP/ Brown-gray, silty, sandy, fine to coarse GM GRAVEL (medium dense, moist)

0.0 8 0.0 S-2 d3 0.0

12 0.0

S-3 d3 14 0.0

Boring Completed 08/23/10 Total Depth of Boring = 15.0 ft. 16

APPENDIX C

Laboratory Analytical Reports

12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Thursday, August 26, 2010

Heather Nielsen Landau Associates 333 SW 5th Ave. Suite 700 Portland, OR 97204

RE: PDC / 1095006.020/021

Enclosed are the results of analyses for work order A10H071, which was received by the laboratory on 8/5/2010 at 10:45:00AM.

Thank you for using Apex Labs. We appreciate your business and strive to provide the highest quality services to the environmental industry.

If you have any questions concerning this report or the services we offer, please feel free to contact me by email at: [email protected], or by phone at 503-718-2323.

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 1 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL REPORT FOR SAMPLES

SAMPLE INFORMATION

Sample ID Laboratory ID Matrix Date Sampled Date Received TP-B Ash A10H071-01 Soil 08/04/10 12:30 08/05/10 10:45 TP-E A10H071-02 Soil 08/04/10 14:50 08/05/10 10:45 TP-D North A10H071-04 Soil 08/04/10 18:30 08/05/10 10:45 TP-D South A10H071-05 Soil 08/04/10 19:00 08/05/10 10:45

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 2 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL CASE NARRATIVE

Work Order: A10H071

--NWTPH-HCID--

Although results for NWTPH-HCID are normally reported as detect/non-detect, this report contains rough quantifications based on a one point calibration curve for further evaluation of petroleum hydrocarbon detections.

Allison Greiner Project Manager 8-6-10

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 3 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL SAMPLE RESULTS

Hydrocarbon Identification (HCID) Screen by NWTPH

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes TP-E (A10H071-02) Matrix: Soil Batch: 1008096 Gasoline Range Organics ND --- 43.8 mg/kg dry 1 08/06/10 02:14 NWTPH-HCID Diesel Range Organics ND --- 109 " " " " Oil Range Organics 425 --- 219 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 107 % Limits: 50-150 % " " "

TP-D North (A10H071-04) Matrix: Soil Batch: 1008096 Gasoline Range Organics ND --- 21.3 mg/kg dry 1 08/06/10 01:24 NWTPH-HCID Diesel Range Organics ND --- 53.3 " " " " Oil Range Organics ND --- 107 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 95 % Limits: 50-150 % " " "

TP-D South (A10H071-05) Matrix: Soil Batch: 1008096 Gasoline Range Organics ND --- 21.1 mg/kg dry 1 08/06/10 02:39 NWTPH-HCID Diesel Range Organics ND --- 52.8 " " " " Oil Range Organics ND --- 106 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 103 % Limits: 50-150 % " " "

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 4 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL SAMPLE RESULTS

Polyaromatic Hydrocarbons (PAHs) by EPA 8270D SIM

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes TP-B Ash (A10H071-01) Matrix: Soil Batch: 1008350 Acenaphthene ND --- 9.80 ug/kg dry 1 08/20/10 04:51 EPA 8270D (SIM) Acenaphthylene 24.9 --- 9.80 " " " " Anthracene 12.4 --- 9.80 " " " " Benz(a)anthracene 37.3 --- 9.80 " " " " Benzo(a)pyrene 54.6 --- 9.80 " " " " Benzo(b+k)fluoranthene(s) 87.5 --- 19.7 " " " " Q-26 Benzo(g,h,i)perylene 70.6 --- 9.80 " " " " Chrysene 53.5 --- 9.80 " " " " Dibenz(a,h)anthracene 13.6 --- 9.80 " " " " Fluoranthene 85.3 --- 9.80 " " " " Fluorene ND --- 9.80 " " " " Indeno(1,2,3-cd)pyrene 67.7 --- 9.80 " " " " Naphthalene ND --- 19.5 " " " " Phenanthrene 56.8 --- 9.80 " " " " Pyrene 86.5 --- 9.80 " " " "

Surrogate: Nitrobenzene-d5 (Surr) Recovery: 95 % Limits: 35-120 % " " " 2-Fluorobiphenyl (Surr) 99 % Limits: 45-120 % " " " p-Terphenyl-d14 (Surr) 101 % Limits: 30-120 % " " "

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 5 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL SAMPLE RESULTS

Total Metals by EPA 6020 (ICPMS)

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes TP-B Ash (A10H071-01) Matrix: Soil Batch: 1008333 Arsenic ND --- 2.35 mg/kg dry 10 08/17/10 16:05 EPA 6020 Barium 183 --- 1.17 " " " " Cadmium ND --- 1.17 " " " " Chromium 4.69 --- 2.35 " " " " Lead 90.5 --- 1.17 " " " " Mercury ND --- 0.0939 " " " " Selenium ND --- 2.35 " " " " Silver ND --- 1.17 " " " " TP-E (A10H071-02) Matrix: Soil Batch: 1008105 Arsenic 17.6 --- 4.77 mg/kg dry 10 08/06/10 16:31 EPA 6020 Barium 621 --- 2.38 " " " " Cadmium ND --- 2.38 " " " " Chromium 51.2 --- 4.77 " " " " Lead 262 --- 2.38 " " " " Mercury 3.72 --- 0.191 " " " " Selenium ND --- 4.77 " " " " Silver 11.7 --- 2.38 " " " "

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 6 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL SAMPLE RESULTS

TCLP Metals by EPA 6020 (ICPMS)

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes TP-B Ash (A10H071-01) Matrix: Soil Batch: 1008104 Lead 0.197 --- 0.0500 mg/L 5 08/09/10 16:56 EPA 1311/6020

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 7 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

ANALYTICAL SAMPLE RESULTS

Percent Dry Weight by D2216

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes TP-B Ash (A10H071-01) Matrix: Soil Batch: 1008330 % Solids 85.9 --- 1.00 % by Weight 1 08/18/10 09:52 Apex SOP TP-E (A10H071-02) Matrix: Soil Batch: 1008085 % Solids 42.7 --- 1.00 % by Weight 1 08/06/10 09:16 Apex SOP TP-D North (A10H071-04) Matrix: Soil Batch: 1008085 % Solids 92.8 --- 1.00 % by Weight 1 08/06/10 09:16 Apex SOP TP-D South (A10H071-05) Matrix: Soil Batch: 1008085 % Solids 89.6 --- 1.00 % by Weight 1 08/06/10 09:16 Apex SOP

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 8 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Hydrocarbon Identification (HCID) Screen by NWTPH

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008096 - EPA 3546 (Fuels) Soil

Blank (1008096-BLK1) Prepared: 08/05/10 16:49 Analyzed: 08/06/10 00:59 NWTPH-HCID Gasoline Range Organics ND --- 20.0 mg/kg wet 1 ------Diesel Range Organics ND --- 50.0 " " ------Oil Range Organics ND --- 100 " " ------Surr: o-Terphenyl (Surr) Recovery: 104 % Limits: 50-150 % Dilution: 1x

Duplicate (1008096-DUP1) Prepared: 08/05/10 16:49 Analyzed: 08/06/10 01:49

QC Source Sample: TP-D North (A10H071-04) NWTPH-HCID Gasoline Range Organics ND --- 20.7 mg/kg dry 1 --- ND ------25% Diesel Range Organics ND --- 51.7 " " --- ND ------25% Oil Range Organics ND --- 103 " " --- ND ------25% Surr: o-Terphenyl (Surr) Recovery: 92 % Limits: 50-150 % Dilution: 1x

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 9 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Polyaromatic Hydrocarbons (PAHs) by EPA 8270D SIM

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008350 - EPA 3546 Soil

Blank (1008350-BLK1) Prepared: 08/18/10 07:29 Analyzed: 08/20/10 03:03 EPA 8270D (SIM) Acenaphthene ND --- 6.67 ug/kg wet 1 ------Acenaphthylene ND --- 6.67 " " ------Anthracene ND --- 6.67 " " ------Benz(a)anthracene ND --- 6.67 " " ------Benzo(a)pyrene ND --- 6.67 " " ------Benzo(b)fluoranthene ND --- 6.67 " " ------Benzo(k)fluoranthene ND --- 6.67 " " ------Benzo(b+k)fluoranthene(s) ND --- 13.4 " " ------Benzo(g,h,i)perylene ND --- 6.67 " " ------Chrysene ND --- 6.67 " " ------Dibenz(a,h)anthracene ND --- 6.67 " " ------Fluoranthene ND --- 6.67 " " ------Fluorene ND --- 6.67 " " ------Indeno(1,2,3-cd)pyrene ND --- 6.67 " " ------Naphthalene ND --- 13.3 " " ------Phenanthrene ND --- 6.67 " " ------Pyrene ND --- 6.67 " " ------Surr: Nitrobenzene-d5 (Surr) Recovery: 101 % Limits: 35-120 % Dilution: 1x 2-Fluorobiphenyl (Surr) 101 % 45-120 % " p-Terphenyl-d14 (Surr) 108 % 30-120 % "

LCS (1008350-BS1) Prepared: 08/18/10 07:29 Analyzed: 08/20/10 03:29 EPA 8270D (SIM) Acenaphthene 680 --- 6.67 ug/kg wet 1 667 --- 102 45-125% ------Acenaphthylene 669 --- 6.67 " " " --- 100 " ------Anthracene 706 --- 6.67 " " " --- 106 55-125% ------Benz(a)anthracene 643 --- 6.67 " " " --- 96 50-125% ------Benzo(a)pyrene 579 --- 6.67 " " " --- 87 " ------Benzo(b)fluoranthene 592 --- 6.67 " " " --- 89 45-125% ------Benzo(k)fluoranthene 581 --- 6.67 " " " --- 87 " ------Benzo(b+k)fluoranthene(s) 1170 --- 13.4 " " 1330 --- 88 " ------Benzo(g,h,i)perylene 655 --- 6.67 " " 667 --- 98 40-125% ------Chrysene 669 --- 6.67 " " " --- 100 55-125% ------Dibenz(a,h)anthracene 690 --- 6.67 " " " --- 103 40-125% ------

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 10 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Polyaromatic Hydrocarbons (PAHs) by EPA 8270D SIM

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008350 - EPA 3546 Soil

LCS (1008350-BS1) Prepared: 08/18/10 07:29 Analyzed: 08/20/10 03:29 Fluoranthene 706 --- 6.67 ug/kg wet " " --- 106 55-125% ------Fluorene 682 --- 6.67 " " " --- 102 50-125% ------Indeno(1,2,3-cd)pyrene 669 --- 6.67 " " " --- 100 40-125% ------Naphthalene 678 --- 13.3 " " " --- 102 " ------Phenanthrene 692 --- 6.67 " " " --- 104 50-125% ------Pyrene 716 --- 6.67 " " " --- 107 45-125% ------Surr: Nitrobenzene-d5 (Surr) Recovery: 100 % Limits: 35-120 % Dilution: 1x 2-Fluorobiphenyl (Surr) 99 % 45-120 % " p-Terphenyl-d14 (Surr) 107 % 30-120 % "

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 11 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Total Metals by EPA 6020 (ICPMS)

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008105 - EPA 3051A Soil

Blank (1008105-BLK1) Prepared: 08/06/10 10:37 Analyzed: 08/06/10 15:13 EPA 6020 Arsenic ND --- 2.00 mg/kg wet 10 ------Barium ND --- 1.00 " " ------Cadmium ND --- 1.00 " " ------Chromium ND --- 2.00 " " ------Lead ND --- 1.00 " " ------Mercury ND --- 0.0800 " " ------Selenium ND --- 2.00 " " ------Silver ND --- 1.00 " " ------

LCS (1008105-BS1) Prepared: 08/06/10 10:37 Analyzed: 08/06/10 15:16 EPA 6020 Arsenic 51.2 --- 2.00 mg/kg wet 10 50.0 --- 102 80-120% ------Barium 51.9 --- 1.00 " " " --- 104 " ------Cadmium 50.4 --- 1.00 " " " --- 101 " ------Chromium 49.5 --- 2.00 " " " --- 99 " ------Lead 48.6 --- 1.00 " " " --- 97 " ------Mercury 1.95 --- 0.0800 " " 2.00 --- 98 " ------Selenium 24.1 --- 2.00 " " 25.0 --- 96 " ------Silver 24.6 --- 1.00 " " " --- 99 " ------

Matrix Spike (1008105-MS2) Prepared: 08/06/10 10:37 Analyzed: 08/06/10 16:34

QC Source Sample: TP-E (A10H071-02) EPA 6020 Arsenic 148 --- 4.81 mg/kg dry 10 120 17.6 109 75-125% ------Barium 746 --- 2.40 " " " 621 104 " ------Cadmium 120 --- 2.40 " " " 1.93 98 " ------Chromium 177 --- 4.81 " " " 51.2 105 " ------Lead 386 --- 2.40 " " " 262 103 " ------Mercury 8.44 --- 0.192 " " 4.81 3.72 98 " ------Selenium 60.2 --- 4.81 " " 60.1 2.19 96 " ------Silver 70.5 --- 2.40 " " " 11.7 98 " ------

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 12 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Total Metals by EPA 6020 (ICPMS)

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008333 - EPA 3051A Soil

Blank (1008333-BLK1) Prepared: 08/17/10 10:55 Analyzed: 08/17/10 15:48 EPA 6020 Arsenic ND --- 2.00 mg/kg wet 10 ------Barium ND --- 1.00 " " ------Cadmium ND --- 1.00 " " ------Chromium ND --- 2.00 " " ------Lead ND --- 1.00 " " ------Mercury ND --- 0.0800 " " ------Selenium ND --- 2.00 " " ------Silver ND --- 1.00 " " ------

LCS (1008333-BS1) Prepared: 08/17/10 10:55 Analyzed: 08/17/10 15:51 EPA 6020 Arsenic 49.9 --- 2.00 mg/kg wet 10 50.0 --- 100 80-120% ------Barium 52.3 --- 1.00 " " " --- 105 " ------Cadmium 49.2 --- 1.00 " " " --- 98 " ------Chromium 49.1 --- 2.00 " " " --- 98 " ------Lead 48.5 --- 1.00 " " " --- 97 " ------Mercury 1.95 --- 0.0800 " " 2.00 --- 98 " ------Selenium 24.6 --- 2.00 " " 25.0 --- 98 " ------Silver 24.9 --- 1.00 " " " --- 99 " ------

Post Spike (1008333-PS1) Prepared: 08/18/10 11:17 Analyzed: 08/18/10 12:06

QC Source Sample: Post Spike (A10H224-30) EPA 6020 Barium 894 --- ug/L 5 500 349 109 80-120% --- Chromium 670 --- " " " 184 97 " ---

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 13 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

TCLP Metals by EPA 6020 (ICPMS)

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008104 - EPA 1311/3015 Soil

Blank (1008104-BLK1) Prepared: 08/06/10 10:12 Analyzed: 08/09/10 16:50 EPA 1311/6020 Lead ND --- 0.0500 mg/L 5 ------

LCS (1008104-BS1) Prepared: 08/06/10 10:12 Analyzed: 08/09/10 16:53 EPA 1311/6020 Lead 2.59 --- 0.0500 mg/L 5 2.50 --- 104 80-120% ------

Matrix Spike (1008104-MS1) Prepared: 08/06/10 10:12 Analyzed: 08/09/10 16:59

QC Source Sample: TP-B Ash (A10H071-01) EPA 1311/6020 Lead 2.72 --- 0.0500 mg/L 5 2.50 0.197 101 50-150% ------

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 14 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

QUALITY CONTROL (QC) SAMPLE RESULTS

Percent Dry Weight by D2216

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008085 - Dry Weight Soil

No Client related Batch QC samples analyzed for this batch. See notes page for more information.

Batch 1008330 - Dry Weight Soil

No Client related Batch QC samples analyzed for this batch. See notes page for more information.

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 15 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

SAMPLE PREPARATION INFORMATION

Hydrocarbon Identification (HCID) Screen by NWTPH

Prep: EPA 3546 (Fuels) Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008096 A10H071-02 Soil NWTPH-HCID 08/04/10 14:50 08/05/10 16:49 10.7g/10mL 10g/10mL 0.94 A10H071-04 Soil NWTPH-HCID 08/04/10 18:30 08/05/10 16:49 10.1g/10mL 10g/10mL 0.99 A10H071-05 Soil NWTPH-HCID 08/04/10 19:00 08/05/10 16:49 10.56g/10mL 10g/10mL 0.95

Polyaromatic Hydrocarbons (PAHs) by EPA 8270D SIM

Prep: EPA 3546 Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008350 A10H071-01 Soil EPA 8270D (SIM) 08/04/10 12:30 08/18/10 07:29 11.89g/5mL 15g/5mL 1.26

Total Metals by EPA 6020 (ICPMS)

Prep: EPA 3051A Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008105 A10H071-02 Soil EPA 6020 08/04/10 14:50 08/06/10 10:37 0.491g/50mL 0.5g/50mL 1.02 Batch: 1008333 A10H071-01 Soil EPA 6020 08/04/10 12:30 08/17/10 10:55 0.496g/50mL 0.5g/50mL 1.01

TCLP Metals by EPA 6020 (ICPMS)

Prep: EPA 1311/3015 Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008104 A10H071-01 Soil EPA 1311/6020 08/04/10 12:30 08/06/10 10:12 5mL/50mL 5mL/50mL 1.00

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 16 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

Notes and Definitions

Qualifiers:

Q-26 Peak separation for Benzo(b) and Benzo(k)fluoranthenes does not meet method specified criteria. Reported result includes the combined area of the two isomers and should be considered the total of Benzo(b+k)Fluoranthenes.

Notes and Conventions:

DET Analyte DETECTED ND Analyte NOT DETECTED at or above the reporting limit NR Not Reported dry Sample results reported on a dry weight basis. Results listed as 'wet' or without 'dry'designation are not dry weight corrected. RPD Relative Percent Difference MDL If MDL is not listed, data has been evaluated to the Method Reporting Limit only. WMSC Water Miscible Solvent Correction has been applied to Results and MRLs for volatiles soil samples per EPA 8000C. Batch Unless specifically requested, this report contains only results for Batch QC derived from client samples included in this report. All QC analyses were performed with the appropriate Batch QC (including Sample Duplicates, Matrix Spikes and/or Matrix Spike Duplicates) in order to meet or exceed method and regulatory requirements. Any exceptions to this will be qualified in this report. Complete Batch QC results are available upon request. In cases where there is insufficient sample provided for Sample Duplicates and/or Matrix Spikes, a Lab Control Sample Duplicate (LCS Dup) is analyzed to demonstrate accuracy and precision of the extraction and analysis.

Blank Apex assesses blank data for potential high bias down to a level equal to ½ the method reporting limit (MRL), except for conventional Policy chemistry and HCID analyses which are assessed only to the MRL. Sample results flagged with a B or B-02 qualifier are potentially biased high if they are less than ten times the level found in the blank for inorganic analyses or less than five times the level found in the blank for organic analyses. For accurate comparison of volatile results to the level found in the blank; water sample results should be divided by the dilution factor, and soil sample results should be divided by 1/50 of the sample dilution to account for the sample prep factor. Results qualified as reported below the MRL may include a potential high bias if associated with a B or B-02 qualified blank. B and B-02 qualifications are not applied to J qualified results reported below the MRL.

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 17 of 18 12232 S.W. Garden Place Apex Labs AMENDED REPORT Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: PDC 333 SW 5th Ave. Suite 700 Project Number: 1095006.020/021 Reported: Portland, OR 97204 Project Manager: Heather Nielsen 08/26/10 13:59

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 18 of 18 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Friday, August 27, 2010

Heidi Bullock Landau Associates 333 SW 5th Ave. Suite 700 Portland, OR 97204

RE: 9330 SE Harold / 1095006

Enclosed are the results of analyses for work order A10H338, which was received by the laboratory on 8/23/2010 at 3:50:00PM.

Thank you for using Apex Labs. We appreciate your business and strive to provide the highest quality services to the environmental industry.

If you have any questions concerning this report or the services we offer, please feel free to contact me by email at: [email protected], or by phone at 503-718-2323.

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 1 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

ANALYTICAL REPORT FOR SAMPLES

SAMPLE INFORMATION

Sample ID Laboratory ID Matrix Date Sampled Date Received B-1 (14) A10H338-01 Soil 08/23/10 09:00 08/23/10 15:50 B-2 (13) A10H338-02 Soil 08/23/10 09:30 08/23/10 15:50 B-3 (15) A10H338-03 Soil 08/23/10 10:00 08/23/10 15:50 B-4 (15) A10H338-04 Soil 08/23/10 10:20 08/23/10 15:50 B-5 (13) A10H338-05 Soil 08/23/10 11:30 08/23/10 15:50 RB01 A10H338-06 Water 08/23/10 13:00 08/23/10 15:50

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 2 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

ANALYTICAL CASE NARRATIVE

Work Order: A10H338

--NWTPH-HCID--

Allison Greiner Project Manager 8-27-10

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 3 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

ANALYTICAL SAMPLE RESULTS

Hydrocarbon Identification (HCID) Screen by NWTPH

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes B-1 (14) (A10H338-01) Matrix: Soil Batch: 1008472 Gasoline Range Organics ND --- 20.5 mg/kg dry 1 08/25/10 04:32 NWTPH-HCID Diesel Range Organics ND --- 51.1 " " " " Oil Range Organics ND --- 102 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 81 % Limits: 50-150 % " " "

B-2 (13) (A10H338-02) Matrix: Soil Batch: 1008472 Gasoline Range Organics ND --- 23.3 mg/kg dry 1 08/25/10 05:46 NWTPH-HCID Diesel Range Organics ND --- 58.3 " " " " Oil Range Organics ND --- 117 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 82 % Limits: 50-150 % " " "

B-3 (15) (A10H338-03) Matrix: Soil Batch: 1008472 Gasoline Range Organics ND --- 22.1 mg/kg dry 1 08/24/10 23:09 NWTPH-HCID Diesel Range Organics ND --- 55.3 " " " " Oil Range Organics ND --- 111 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 85 % Limits: 50-150 % " " "

B-4 (15) (A10H338-04) Matrix: Soil Batch: 1008472 Gasoline Range Organics ND --- 21.4 mg/kg dry 1 08/24/10 23:33 NWTPH-HCID Diesel Range Organics ND --- 53.5 " " " " Oil Range Organics ND --- 107 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 89 % Limits: 50-150 % " " "

B-5 (13) (A10H338-05) Matrix: Soil Batch: 1008472 Gasoline Range Organics ND --- 20.8 mg/kg dry 1 08/24/10 23:58 NWTPH-HCID Diesel Range Organics ND --- 52.1 " " " " Oil Range Organics ND --- 104 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 86 % Limits: 50-150 % " " "

RB01 (A10H338-06) Matrix: Water Batch: 1008487 Gasoline Range Organics ND --- 0.0939 mg/L 1 08/25/10 22:08 NWTPH-HCID Diesel Range Organics ND --- 0.235 " " " " Oil Range Organics ND --- 0.235 " " " "

Surrogate: o-Terphenyl (Surr) Recovery: 82 % Limits: 50-150 % " " "

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 4 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

ANALYTICAL SAMPLE RESULTS

Percent Dry Weight by D2216

Reporting Analyte Result MDL Limit Units Dilution Date Analyzed Method Notes B-1 (14) (A10H338-01) Matrix: Soil Batch: 1008475 % Solids 94.0 --- 1.00 % by Weight 1 08/25/10 09:23 Apex SOP B-2 (13) (A10H338-02) Matrix: Soil Batch: 1008475 % Solids 82.0 --- 1.00 % by Weight 1 08/25/10 09:23 Apex SOP B-3 (15) (A10H338-03) Matrix: Soil Batch: 1008475 % Solids 88.5 --- 1.00 % by Weight 1 08/25/10 09:23 Apex SOP B-4 (15) (A10H338-04) Matrix: Soil Batch: 1008475 % Solids 87.7 --- 1.00 % by Weight 1 08/25/10 09:23 Apex SOP B-5 (13) (A10H338-05) Matrix: Soil Batch: 1008475 % Solids 88.6 --- 1.00 % by Weight 1 08/25/10 09:23 Apex SOP

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 5 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

QUALITY CONTROL (QC) SAMPLE RESULTS

Hydrocarbon Identification (HCID) Screen by NWTPH

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008472 - EPA 3546 (Fuels) Soil

Blank (1008472-BLK1) Prepared: 08/24/10 11:13 Analyzed: 08/24/10 22:45 NWTPH-HCID Gasoline Range Organics ND --- 20.0 mg/kg wet 1 ------Diesel Range Organics ND --- 50.0 " " ------Oil Range Organics ND --- 100 " " ------Surr: o-Terphenyl (Surr) Recovery: 85 % Limits: 50-150 % Dilution: 1x

Duplicate (1008472-DUP1) Prepared: 08/24/10 11:13 Analyzed: 08/25/10 00:23

QC Source Sample: B-5 (13) (A10H338-05) NWTPH-HCID Gasoline Range Organics ND --- 21.9 mg/kg dry 1 --- ND ------30% Diesel Range Organics ND --- 54.8 " " --- ND ------30% Oil Range Organics ND --- 110 " " --- ND ------30% Surr: o-Terphenyl (Surr) Recovery: 88 % Limits: 50-150 % Dilution: 1x

Batch 1008487 - EPA 3510C (Fuels/Acid Ext.) Water

Blank (1008487-BLK1) Prepared: 08/25/10 09:19 Analyzed: 08/25/10 20:56 NWTPH-HCID Gasoline Range Organics ND --- 0.100 mg/L 1 ------Diesel Range Organics ND --- 0.250 " " ------Oil Range Organics ND --- 0.250 " " ------Surr: o-Terphenyl (Surr) Recovery: 78 % Limits: 50-150 % Dilution: 1x

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 6 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

QUALITY CONTROL (QC) SAMPLE RESULTS

Percent Dry Weight by D2216

Reporting Spike Source %REC RPD Analyte Result MDL Limit Units Dil. Amount Result %REC Limits RPD Limit Notes

Batch 1008475 - Dry Weight Soil

No Client related Batch QC samples analyzed for this batch. See notes page for more information.

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 7 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

SAMPLE PREPARATION INFORMATION

Hydrocarbon Identification (HCID) Screen by NWTPH

Prep: EPA 3510C (Fuels/Acid Ext.) Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008487 A10H338-06 Water NWTPH-HCID 08/23/10 13:00 08/25/10 09:19 1065mL/5mL 1000mL/5mL 0.94

Prep: EPA 3546 (Fuels) Sample Default RL Prep Lab Number Matrix Method Sampled Prepared Initial/Final Initial/Final Factor Batch: 1008472 A10H338-01 Soil NWTPH-HCID 08/23/10 09:00 08/24/10 11:13 10.4g/10mL 10g/10mL 0.96 A10H338-02 Soil NWTPH-HCID 08/23/10 09:30 08/24/10 11:13 10.45g/10mL 10g/10mL 0.96 A10H338-03 Soil NWTPH-HCID 08/23/10 10:00 08/24/10 11:13 10.22g/10mL 10g/10mL 0.98 A10H338-04 Soil NWTPH-HCID 08/23/10 10:20 08/24/10 11:13 10.65g/10mL 10g/10mL 0.94 A10H338-05 Soil NWTPH-HCID 08/23/10 11:30 08/24/10 11:13 10.84g/10mL 10g/10mL 0.92

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 8 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

Notes and Definitions

Qualifiers:

Notes and Conventions:

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 9 of 10 12232 S.W. Garden Place Apex Labs Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax

Landau Associates Project: 9330 SE Harold 333 SW 5th Ave. Suite 700 Project Number: 1095006 Reported: Portland, OR 97204 Project Manager: Heidi Bullock 08/27/10 11:42

Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety.

Allison Greiner, Project Manager Page 10 of 10