S202 Task 1 - Site Soil Background Survey and Aggregate Sampling Stockade Marina, California

Transcription

1 S0 Task - Site Soil Background Survey and Aggregate Sampling Stockade Marina, California Prepared for: 0 nd Ave, Suite A Marina, CA Prepared By: Vista Environmental Consulting Teagarden Street San Leandro, CA April, 0 Project No. 0

2 TABLE OF CONTENTS EXECUTIVE SUMMARY PAGE. INTRODUCTION. METHODOLOGY. RESULTS. RECOMMEATIONS FIGURES. SAMPLE LOCATION DRAWING APPEICES A. BUILDING DATA Background Soil and Aggregate Sampling (If Applicable) Summary Title Metals and PCBs Analytical Reports Asbestos Analytical Reports

3 EXECUTIVE SUMMARY Vista Environmental Consulting (Vista) performed background soil and aggregate sampling for Buildings 0,,,,,, and at the Stockade, Marina, California (Project Site). The purpose of the survey was to document background levels of Title Metals, asbestos and polychlorinated biphenyls (PCBs) in the soil around the buildings at the Project Site, to be used as a baseline for post remediation/demolition comparisons. Preliminary waste characterization sampling of the aggregate piles inside the building was also performed and tested for Title Metals, asbestos, and PCBs. The results of the sampling indicate the following: Soil Location 0 (0 S0) ( S0) ( S0 to S0) ( S0) ( S0) ( S0) ( S0) Depth Exceeds Residential ESLs for Title Metals? Exceeds Worker Exposure ESLs for Title Metals? Exceeds Disposal Levels or Needs Additional Analysis for Title Metals? Asbestos Detected? PCBs Detected? 0- No No No 0- No No No 0- Pending Pending Pending 0- No No No 0- No No No 0- No No No 0- No No No Aggregate Location - West Wing, Dining Room, North Side ( AGG0) - North Wing, East Side, South Pile ( AGG0) - North Wing, East Side, South Pile ( AGG0) Exceeds Disposal Levels or Needs Additional Analysis for Title Metals? Asbestos Detected? PCBs Detected? Pending No No No No No No No No i

4 Location - North Wing, East Side, North Pile ( AGG0) Exceeds Disposal Levels or Needs Additional Analysis for Title Metals? Asbestos Detected? PCBs Detected? Pending No No The Background Soil and Aggregate Sampling (If Applicable) Summary, Title Metals and PCBs Analytical Reports, and Asbestos Analytical Reports for each building can be found in Appendix A Building Data. The buildings are listed in numerical order. After completion of the Stockade hazardous materials remediation a series of soil samples should be collected and analyzed for Title Metals, asbestos and PCBs. A summary report should compare those test results to these soil background survey results. Results higher to the ones found here would require additional soil cleaning by the contractor. The contractor should also contact the waste disposal site(s) for specific waste characterization testing requirements of the aggregate and any soil spoils. Report prepared for the Company by: Christopher R. Burns Senior Project Manager CAC #-0 LRCIA # ii

5 FORA Stockade, Task April, 0 Background Soil and Aggregate Sampling Project No. 0.0 INTRODUCTION Vista Environmental Consulting (Vista) performed background soil and aggregate sampling for Buildings 0,,,,,, and at the Stockade, Marina, California (Project Site). The purpose of the survey was to document background levels of Title Metals, asbestos and polychlorinated biphenyls (PCBs) in the soil around the buildings at the Project Site, to be used as a baseline for post remediation/demolition comparisons. Preliminary waste characterization sampling of the aggregate piles inside the building was also performed and tested for Title Metals, asbestos, and PCBs..0 METHODOLOGY Vista performed the sampling on March, and April, 0. The asbestos sampling was performed by Christopher Burns, a State of California Division of Occupational Safety and Health (Cal/OSHA) Certified Asbestos Consultant (CAC) #-0. Soils were sampled for Title Metals and PCBs by Javier Rocha who is Hazardous Waste Operations and Emergency Response (HAZWOPER) trained. Vista collected, -point composite soil samples throughout the site taken from the top of soil within of the building footprint. The footprint of Building was covered with debris from the concrete company leasing the site. Building has no soil on the east side and Building has no soil on the south side where there were hardscape and debris piles. Vista also collected, -point composite aggregate samples from the interior of Building. Soil and aggregate samples were collected using a hand auger or scoop. Overlying vegetation was removed prior to soil boring and soil sample collection activities. Sampling staff used new nitrile gloves before commencing activities at each sampling location and a second set of new nitrile gloves was used prior to actual sample collection. Samples were then placed into sealed plastic bags or stainless steel tubes with Teflon film and plastic end caps to provide a seal. Each container was labeled with a unique name and the date of collection and placed into an icecooled chest. All sampling equipment was washed in a solution of phosphate-free laboratory detergent and water and then double-rinsed with water to prevent cross contamination between each sample. Chain-of-Custody forms were completed at the time of sampling and accompanied the samples to the laboratory. - -

6 FORA Stockade, Task April, 0 Background Soil and Aggregate Sampling Project No. 0 Soil samples were collected and analyzed for the following: CAM metals (Title ) by USEPA Method 0B and A; and Asbestos by USEPA Method EPA/00/R-/; and Polychlorinated Biphenyls by USEPA Method 0. Aggregate samples were collected and analyzed for the following: CAM metals (Title ) by USEPA Method 0B and A; and Soluble Threshold Limit Concentration (STLC) or Wet Test SW and Toxicity Characteristic Leaching Procedure (TCLP); and Asbestos by Air Resources Board's Method, Determination of Asbestos Content of Serpentine Aggregate and USEPA Method EPA/00/R-/; and Polychlorinated Biphenyls by USEPA Method 0. All soil and aggregate samples were analyzed for Title Metals and PCBs by Test America Laboratories, Inc. located at 0 Quarry Lane, Pleasanton, California All soil and aggregate samples were analyzed for asbestos by EMSL Analytical, Inc. (EMSL) located at McCormick St., San Leandro, California..0 RESULTS Soil Location 0 (0 S0) ( S0) ( S0 to S0) ( S0) ( S0) ( S0) ( S0) Depth Exceeds Residential ESLs for Title Metals? Exceeds Worker Exposure ESLs for Title Metals? Exceeds Disposal Levels or Needs Additional Analysis for Title Metals? Asbestos Detected? PCBs Detected? 0- No No No 0- No No No 0- Pending Pending Pending 0- No No No 0- No No No 0- No No No 0- No No No - -

7 FORA Stockade, Task April, 0 Background Soil and Aggregate Sampling Project No. 0 Aggregate Location - West Wing, Dining Room, North Side ( AGG0) - North Wing, East Side, South Pile ( AGG0) - North Wing, East Side, South Pile ( AGG0) - North Wing, East Side, North Pile ( AGG0) Exceeds Disposal Levels or Needs Additional Analysis for Title Metals? Asbestos Detected? PCBs Detected? Pending No No No No No No No No Pending No No The Background Soil and Aggregate Sampling (If Applicable) Summary, Title Metals and PCBs Analytical Reports, and Asbestos Analytical Reports for each building can be found in Appendix A Building Data. The buildings are listed in numerical order..0 RECOMMEATIONS After completion of the Stockade hazardous materials remediation a series of soil samples should be collected and analyzed for Title Metals, asbestos and PCBs. A summary report should compare those test results to these soil background survey results. Results higher to the ones found here would require additional soil cleaning by the contractor. The contractor should also contact the waste disposal site(s) for specific waste characterization testing requirements of the aggregate and any soil spoils. Respectfully Submitted, Vista Environmental Consulting Reviewed and Approved Christopher R. Burns Charles R. Bove Senior Project Manager Principal CAC #-0 CAC #-0 LRCIA # - -

8 FIGURE SAMPLE LOCATION DRAWING

9 Legend: Soil Aggegate VISTA ENVIRONMENTAL CONSULTING TEAGARDEN STREET SAN LEARO, CA --0 PROJECT TITLE SHEET TITLE SCALE: STOCKADE BACKGROU SOIL A AGGREGATE SAMPLING SAMPLE LOCATION DRAWING DRAWN BY: CHECKED BY: PROJECT No. DATE: DRAWING No. FIGURE

10 APPEIX A BUILDING DATA

11 BUILDING 0 The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

12 BUILDING 0 BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: 0 - S0, Depth: 0-", Location: -Point Composite, All Sides* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper. mg/kg.,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc 0 mg/kg 0,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No *Metals not listed were None Detected () TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper. mg/kg.,00 No No Lead mg/kg,000 No No Nickel. mg/kg.,000 No No Vanadium mg/kg,00 No No Zinc 0 mg/kg 0,000 No No Mercury 0.0 mg/kg No No

13 BUILDING 0 BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) 0-AS0 -Point Composite, All Sides PCBs Sample # Location Result (mg/kg) 0-S0 -Point Composite, All Sides

14 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA STOCKADE, TASK For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :0: PM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

15 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

16 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Qualifiers Metals Qualifier F Glossary Abbreviation Qualifier Description MS and/or MSD Recovery is outside acceptance limits. Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

17 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following samples required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: 0-SO (0--), (LCS 0-/-A), (MB 0-/-A). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 0B: The serial dilution performed for the following sample associated with batch 0- was outside control limits: (0--A--D SD ^) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

18 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Detection Summary TestAmerica Job ID: 0-- Client Sample ID: 0-SO Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper.. mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc 0. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

19 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: 0-SO Date Collected: 0// :0 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony F. mg/kg 0// :0 0// : Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper. Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc 0 MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// : 0// : Page of //0

20 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) SO LCS 0-/-A Lab Control Sample MB 0-/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

21 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL PCB- 0 ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0// :0 0// :0 Arsenic.0 mg/kg 0// :0 0// :0 Barium 0.0 mg/kg 0// :0 0// :0 Beryllium 0. mg/kg 0// :0 0// :0 Cadmium 0. mg/kg 0// :0 0// :0 Chromium 0.0 mg/kg 0// :0 0// :0 Cobalt 0.0 mg/kg 0// :0 0// :0 Copper. mg/kg 0// :0 0// :0 Lead 0.0 mg/kg 0// :0 0// :0 Molybdenum 0.0 mg/kg 0// :0 0// :0 Nickel 0.0 mg/kg 0// :0 0// :0 Selenium.0 mg/kg 0// :0 0// :0 Silver 0. mg/kg 0// :0 0// :0 Thallium 0.0 mg/kg 0// :0 0// :0 Vanadium 0.0 mg/kg 0// :0 0// :0 Zinc. mg/kg 0// :0 0// :0 Page of //0

22 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium 0.0. mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt mg/kg 0-0 Copper 0.0. mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg 0-0 Nickel mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0. mg/kg 0-0 Thallium 0.0. mg/kg 0-0 Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Lab Sample ID: 0-- MS Client Sample ID: 0-SO Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Sample Sample Spike MS MS %Rec. Result Qualifier Added Result Qualifier Unit D %Rec Antimony F.. F mg/kg - Arsenic.. mg/kg - Barium. 0. mg/kg - Beryllium.. mg/kg - Cadmium.. mg/kg - Chromium.. mg/kg - Cobalt... mg/kg - Copper... mg/kg - Lead.. mg/kg - Molybdenum.. mg/kg - Nickel... mg/kg - Selenium.. mg/kg - Silver.. mg/kg 0 - Thallium.. mg/kg - Vanadium.. mg/kg 0 - Zinc 0.. mg/kg - Limits Limits Lab Sample ID: 0-- MSD Client Sample ID: 0-SO Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Sample Sample Spike MSD MSD %Rec. RPD Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit Antimony F.. F mg/kg - 0 Arsenic.. mg/kg - 0 Barium.. mg/kg - 0 Beryllium.. mg/kg - 0 Page of //0

23 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: 0-- MSD Client Sample ID: 0-SO Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Sample Sample Spike MSD MSD %Rec. RPD Result Qualifier Added Result Qualifier Unit D %Rec Cadmium.. mg/kg - 0 Chromium..0 mg/kg - 0 Cobalt... mg/kg - 0 Copper...0 mg/kg - 0 Lead.. mg/kg - 0 Molybdenum.. mg/kg - 0 Nickel... mg/kg - 0 Selenium..0 mg/kg - 0 Silver.. mg/kg - 0 Thallium.. mg/kg - 0 Vanadium..0 mg/kg - 0 Zinc mg/kg - 0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL Mercury 0.0 mg/kg 0// : 0// : MDL Unit D Prepared Limits Analyzed RPD Limit Dil Fac Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

24 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid MB 0-/-A Method Blank Solid LCS 0-/-A Lab Control Sample Solid Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid 0 MB 0-/-A Method Blank Solid 0 LCS 0-/-A Lab Control Sample Solid 0 Metals Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid 00B MB 0-/-A Method Blank Solid 00B LCS 0-/-A Lab Control Sample Solid 00B 0-- MS 0-SO Solid 00B 0-- MSD 0-SO Solid 00B Analysis Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid 0B MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B 0-- MS 0-SO Solid 0B 0-- MSD 0-SO Solid 0B Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Page of //0

25 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Client Sample ID: 0-SO Lab Sample ID: 0-- Date Collected: 0// :0 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0// :0 RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// :0 JNG TAL PLS Analysis 0B 0// : CAM TAL PLS Prep A 0// : JNG TAL PLS Analysis A 00 0// : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

26 Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

27 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

28 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received SO Solid 0// :0 0// :0 Page of //0

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30 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

31 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 00 Customer ID: VEOK Customer PO: Project ID: Attention: Vista Environmental Consulting, Inc. Phone: () -0 Teagarden St San Leandro, CA Project: FORA 0/0, Task Fax: Received Date: 0//0 : PM Analysis Date: 0//0 Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous 0-AS pt Composite Brown Non-Fibrous Homogeneous Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz % Ca Carbonate % Gypsum % Non-fibrous (Other) Asbestos % Type None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 :: ASB_PLM_000_ Printed: //0 : PM Page of

32 OrderID: 00 Page Of

33 BUILDING The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

34 BUILDING BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, All Sides* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel mg/kg 0 No,000 No No Silver 0. mg/kg 0. 0 No,00 No,00 No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0. mg/kg 0. No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel mg/kg,000 No No Silver 0. mg/kg No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0. mg/kg 0. 0 No No *Metals not listed were None Detected ()

35 BUILDING BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -Point Composite, All Sides PCBs Sample # Location Result (mg/kg) -S0 -Point Composite, All Sides

36 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA STOCKADE, TASK For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 ::0 PM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

37 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

38 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

39 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following sample required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -SO (0--). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

40 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -SO Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel. mg/kg 0B Silver mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

41 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -SO Date Collected: 0// 0:0 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// :0 0// :0 PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// :0 0// :0 ug/kg 0// :0 0// :0 ug/kg 0// :0 0// :0 ug/kg 0// :0 0// :0 ug/kg 0// :0 0// :0 ug/kg 0// :0 0// :0 Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// :0 DCB Decachlorobiphenyl - 0// :0 0// :0 Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// :0 0// :0 Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel Selenium Silver 0. Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0 0. mg/kg 0// :0 0// :0 0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0 0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0 0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0. mg/kg 0// :0 0// :0 Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// : 0// : Page of //0

42 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -SO LCS 0-/-A Lab Control Sample MB 0-/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

43 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL PCB- 0 ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0// :0 0// :0 Arsenic.0 mg/kg 0// :0 0// :0 Barium 0.0 mg/kg 0// :0 0// :0 Beryllium 0. mg/kg 0// :0 0// :0 Cadmium 0. mg/kg 0// :0 0// :0 Chromium 0.0 mg/kg 0// :0 0// :0 Cobalt 0.0 mg/kg 0// :0 0// :0 Copper. mg/kg 0// :0 0// :0 Lead 0.0 mg/kg 0// :0 0// :0 Molybdenum 0.0 mg/kg 0// :0 0// :0 Nickel 0.0 mg/kg 0// :0 0// :0 Selenium.0 mg/kg 0// :0 0// :0 Silver 0. mg/kg 0// :0 0// :0 Thallium 0.0 mg/kg 0// :0 0// :0 Vanadium 0.0 mg/kg 0// :0 0// :0 Zinc. mg/kg 0// :0 0// :0 Page of //0

44 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium 0.0. mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt mg/kg 0-0 Copper 0.0. mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg 0-0 Nickel mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0. mg/kg 0-0 Thallium 0.0. mg/kg 0-0 Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL Mercury 0.0 mg/kg 0// : 0// : MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

45 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid MB 0-/-A Method Blank Solid LCS 0-/-A Lab Control Sample Solid Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-/-A Method Blank Solid 0 LCS 0-/-A Lab Control Sample Solid 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0 Metals Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 00B MB 0-/-A Method Blank Solid 00B LCS 0-/-A Lab Control Sample Solid 00B Analysis Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0B MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Page of //0

46 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Client Sample ID: -SO Lab Sample ID: 0-- Date Collected: 0// 0:0 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0// :0 RAC TAL PLS Batch Number Analysis // :0 JZT TAL PLS Prep 00B 0// :0 JNG TAL PLS Analysis 0B 0// :0 CAM TAL PLS Prep A 0// : JNG TAL PLS Analysis A 00 0// : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

47 Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

48 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

49 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -SO Solid 0// 0:0 0// :0 Page of //0

50 Page of //0

51 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

52 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 0 Customer ID: VEOK Customer PO: Project ID: Attention: Vista Environmental Consulting, Inc. Phone: () -0 Teagarden St San Leandro, CA Project: FORA /0, Task Fax: Received Date: 0//0 : PM Analysis Date: 0//0 Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous -AS pt Composite Brown Non-Fibrous Homogeneous Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz % Ca Carbonate % Gypsum % Non-fibrous (Other) Asbestos % Type None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 :: ASB_PLM_000_ Printed: //0 : PM Page of

53 OrderID: 0 Page Of

54 BUILDING The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

55 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Background Soil Sampling Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, North Wing, West Side* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Arsenic. mg/kg. 0.0 YES 0. YES 0. YES Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel mg/kg 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Arsenic. mg/kg. 00 No No Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel mg/kg,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

56 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, West Wing, North Side* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium. mg/kg. 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel. mg/kg.,000 No No Vanadium. mg/kg.,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

57 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, West Wing, West Side* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Cadmium 0. mg/kg 0. No 0 No No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel mg/kg 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Cadmium 0. mg/kg 0. 0 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel mg/kg,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

58 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, West Wing, South Side* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead. mg/kg. 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead. mg/kg.,000 No No Nickel. mg/kg.,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

59 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Title Metals Pending Laboratory Report Lab Result Sample: - S0, Depth: 0-", Location: -Point Composite, South Wing, West Side* Units Conversion to mg/kg ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? *Metals not listed were None Detected () Pending Laboratory Report TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC?

60 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Title Metals Pending Laboratory Report Lab Result Sample: - S0, Depth: 0-", Location: -Point Composite, South Wing, South Side* Units Conversion to mg/kg ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? *Metals not listed were None Detected () Pending Laboratory Report TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC?

61 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -AS0 -AS0 -AS0 -AS0 -AS0 -Point Composite, North Wing, West Side -Point Composite, West Wing, North Side -Point Composite, West Wing, West Side -Point Composite, West Wing, South Side -Point Composite, South Wing, West Side -Point Composite, South Wing, South Side Pending Results Pending Results PCBs Sample # Location Result (mg/kg) -S0 -S0 -S0 -S0 -S0 -S0 -Point Composite, North Wing, West Side -Point Composite, West Wing, North Side -Point Composite, West Wing, West Side -Point Composite, West Wing, South Side -Point Composite, South Wing, West Side -Point Composite, South Wing, South Side Pending Results Pending Results

62 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Aggregate Sampling Title Metals Sample: AGG0, Location: -Point Composite, West Wing, Dining Room, North Side* TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? STLC Lab Results (mg/l) STLC Level (mg/l) Exceed the Cal/Haz Level? TCLP Lab Results (mg/l) Exceed the RCRA Level? Arsenic. mg/kg. 00 No No NA No NA No Barium mg/kg,000 No No NA 0 No NA No Chromium mg/kg,00 No YES Pending No Pending No Cobalt. mg/kg.,000 No No NA 0 No NA NA Copper mg/kg,00 No No NA No NA NA Lead mg/kg,000 No No NA No NA No Molybdenum 0 mg/kg 0,00 No NA NA 0 No NA NA Nickel mg/kg,000 No No NA 0 No NA NA Vanadium mg/kg,00 No No NA No NA NA Zinc mg/kg,000 No No NA 0 No NA NA Mercury 0.0 mg/kg No No NA 0. No NA No Sample: AGG0, Location: -Point Composite, North Wing, East Side, South Pile* TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? STLC Lab Results (mg/l) STLC Level (mg/l) Exceed the Cal/Haz Level? TCLP Lab Results (mg/l) Exceed the RCRA Level? Antimony mg/kg 00 No No NA No NA NA Barium mg/kg,000 No No NA 0 No NA No Chromium mg/kg,00 No No NA No NA No Cobalt 0. mg/kg 0.,000 No No NA 0 No NA NA Lead mg/kg,000 No No NA No NA No Vanadium. mg/kg.,00 No No NA No NA NA Zinc mg/kg,000 No No NA 0 No NA NA Mercury 0.0 mg/kg No No NA 0. No NA No *Metals not listed were None Detected ()

63 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Sample: AGG0, Location: -Point Composite, North Wing, East Side, Central Pile * TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? STLC Lab Results (mg/l) STLC Level (mg/l) Exceed the Cal/Haz Level? TCLP Lab Results (mg/l) Exceed the RCRA Level? Barium mg/kg,000 No No NA 0 No NA No Chromium mg/kg,00 No No NA No NA No Cobalt mg/kg,000 No No NA 0 No NA NA Copper mg/kg,00 No No NA No NA NA Nickel. mg/kg.,000 No No NA 0 No NA NA Vanadium mg/kg,00 No No NA No NA NA Zinc mg/kg,000 No No NA 0 No NA NA Mercury 0.0 mg/kg No No NA 0. No NA No Sample: AGG0, Location: -Point Composite, North Wing, East Side, North Pile * TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? STLC Lab Results (mg/l) STLC Level (mg/l) Exceed the Cal/Haz Level? TCLP Lab Results (mg/l) Exceed the RCRA Level? Antimony. mg/kg. 00 No No NA No NA NA Arsenic mg/kg 00 No No NA No NA No Barium 00 mg/kg 00,000 No No NA 0 No NA No Chromium 0 mg/kg 0,00 No YES Pending No Pending No Cobalt mg/kg,000 No No NA 0 No NA NA Copper mg/kg,00 No No NA No NA NA Lead mg/kg,000 No YES Pending No Pending No Nickel 0 mg/kg 0,000 No No NA 0 No NA NA Vanadium mg/kg,00 No No NA No NA NA Zinc 0 mg/kg 0,000 No No NA 0 No NA NA Mercury 0. mg/kg 0. 0 No No NA 0. No NA No *Metals not listed were None Detected ()

64 BUILDING BACKGROU SOIL A AGGREGATE SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AGG0 -AGG0 -AGG0 -AGG0 -Point Composite, West Wing, Dining Room, North Side -Point Composite, North Wing, East Side, South Pile -Point Composite, North Wing, East Side, Central Pile -Point Composite, West Wing, South Side PCBs Sample # Location Result (mg/kg) -AGG0 -AGG0 -AGG0 -AGG0 -Point Composite, West Wing, Dining Room, North Side -Point Composite, North Wing, East Side, South Pile -Point Composite, North Wing, East Side, Central Pile -Point Composite, North Wing, East Side, North Pile

65 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA Stockade, Task For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :: PM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

66 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

67 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

68 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The samples were received on //0 :0 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following samples required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -AGG0 (0--), -AGG0 (0--), -AGG0 (0--), -AGG0 (0--), (LCS 0-00/-A) and (MB 0-00/-A). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 0B: The following samples was diluted due to the abundance of non-target analytes: -AGG0 (0--), -AGG0 (0--) and -AGG0 (0--). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

69 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -AGG0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Arsenic.. mg/kg 0B Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -AGG0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Antimony. mg/kg 0B Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt mg/kg 0B Lead. mg/kg 0B Vanadium.. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -AGG0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt 0. mg/kg 0B Copper. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -AGG0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Antimony.. mg/kg 0B Arsenic.0. mg/kg 0B Barium 00. mg/kg 0B Chromium 0. mg/kg 0B Cobalt 0.0 mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel 0. mg/kg 0B Vanadium. mg/kg 0B Zinc 0. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

70 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -AGG0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// : 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// : 0// : DCB Decachlorobiphenyl - 0// : 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// : 0// : Arsenic. Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0. mg/kg 0// : 0// : 0. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// :0 0// :0 Page of //0

71 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -AGG0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- 0 ug/kg 0// : 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// : 0// : DCB Decachlorobiphenyl 0-0// : 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// : 0// :00 Arsenic Barium Beryllium Cadmium Chromium Cobalt 0. Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium. Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00 0. mg/kg 0// : 0// :00 0. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00 0. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00 0. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00. mg/kg 0// : 0// :00 Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// :0 0// : Page of //0

72 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -AGG0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// : 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// : 0// : DCB Decachlorobiphenyl - 0// : 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// : 0// :0 Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0 0. mg/kg 0// : 0// :0 0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0 0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0 0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0. mg/kg 0// : 0// :0 Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// :0 0// : Page of //0

73 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -AGG0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// : 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : ug/kg 0// : 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// : 0// : DCB Decachlorobiphenyl - 0// : 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony.. mg/kg 0// : 0// : Arsenic.0 Barium 00 Beryllium Cadmium Chromium 0 Cobalt Copper Lead Molybdenum Nickel 0 Selenium Silver Thallium Vanadium Zinc 0 MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0. mg/kg 0// : 0// : 0. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0.0 mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// : 0. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// :. mg/kg 0// : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// :0 0// : Page of //0

74 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -AGG AGG AGG AGG0 LCS 0-00/-A Lab Control Sample MB 0-00/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

75 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-00/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: 00 MB MB Result Qualifier RL PCB- 0 ug/kg 0// : 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : 0 ug/kg 0// : 0// : MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0// : 0// : DCB Decachlorobiphenyl - 0// : 0// : Lab Sample ID: LCS 0-00/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: 00 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB-. ug/kg - PCB-0 ug/kg - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 000 Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0// : 0// 0:0 Arsenic.0 mg/kg 0// : 0// 0:0 Beryllium 0. mg/kg 0// : 0// 0:0 Cadmium 0. mg/kg 0// : 0// 0:0 Chromium 0.0 mg/kg 0// : 0// 0:0 Cobalt 0.0 mg/kg 0// : 0// 0:0 Copper. mg/kg 0// : 0// 0:0 Lead 0.0 mg/kg 0// : 0// 0:0 Molybdenum 0.0 mg/kg 0// : 0// 0:0 Nickel 0.0 mg/kg 0// : 0// 0:0 Selenium.0 mg/kg 0// : 0// 0:0 Silver 0. mg/kg 0// : 0// 0:0 Thallium 0.0 mg/kg 0// : 0// 0:0 Vanadium 0.0 mg/kg 0// : 0// 0:0 Zinc. mg/kg 0// : 0// 0:0 Page of //0

76 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: MB MB Result Qualifier RL Barium 0.0 mg/kg 0// : 0// : MDL Unit D Prepared Analyzed Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 000 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg Beryllium 0.0. mg/kg Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt 0.0. mg/kg 0-0 Copper 0.0. mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum mg/kg 0-0 Nickel 0.0. mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0.0 mg/kg 0-0 Thallium 0.0. mg/kg 0-0 Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Limits Dil Fac Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Barium 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury 0.0 mg/kg 0// :0 0// 0: Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

77 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid AGG0 Solid AGG0 Solid 0 00 MB 0-00/-A Method Blank Solid 0 00 LCS 0-00/-A Lab Control Sample Solid 0 00 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid 0 00 Prep Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid 0-- -AGG0 Solid 0-- -AGG0 Solid 0-- -AGG0 Solid MB 0-00/-A Method Blank Solid LCS 0-00/-A Lab Control Sample Solid Metals Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid 00B 0-- -AGG0 Solid 00B 0-- -AGG0 Solid 00B 0-- -AGG0 Solid 00B MB 0-/-A Method Blank Solid 00B LCS 0-/-A Lab Control Sample Solid 00B Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid A 0-- -AGG0 Solid A 0-- -AGG0 Solid A 0-- -AGG0 Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Analysis Batch: 000 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid 0B 0-- -AGG0 Solid 0B 0-- -AGG0 Solid 0B 0-- -AGG0 Solid 0B MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B Page of //0

78 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- Metals (Continued) Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid A 0-- -AGG0 Solid A 0-- -AGG0 Solid A 0-- -AGG0 Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -AGG0 Solid 0B Page of //0

79 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Client Sample ID: -AGG0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 00 0// : RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// : BRB TAL PLS Analysis 0B 000 0// : ASB TAL PLS Prep A 0// :0 JNG TAL PLS Analysis A 0 0// :0 OBI TAL PLS Client Sample ID: -AGG0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 00 0// : RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// : BRB TAL PLS Analysis 0B 000 0// :00 ASB TAL PLS Prep A 0// :0 JNG TAL PLS Analysis A 0 0// : OBI TAL PLS Lab Lab Client Sample ID: -AGG0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 00 0// : RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// : BRB TAL PLS Analysis 0B 000 0// :0 ASB TAL PLS Prep A 0// :0 JNG TAL PLS Analysis A 0 0// : OBI TAL PLS Lab Client Sample ID: -AGG0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 00 0// : RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// : BRB TAL PLS Analysis 0B 0 0// : ASB TAL PLS Prep 00B 0// : BRB TAL PLS Analysis 0B 000 0// : ASB TAL PLS Prep A 0// :0 JNG TAL PLS Lab Page of //0

80 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Client Sample ID: -AGG0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Analysis A 0 0// : OBI TAL PLS Batch Number Lab Laboratory References: EMSL = EMSL Analytical, Inc., McCormick St., San Leandro, CA TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

81 Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

82 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Crush & Grind General Sub Contract Method NONE EMSL Protocol References: NONE = NONE SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: EMSL = EMSL Analytical, Inc., McCormick St., San Leandro, CA TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

83 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -AGG0 Solid 0// 0:00 0// : AGG0 Solid 0// 0:00 0// : AGG0 Solid 0// 0:00 0// : AGG0 Solid 0// 0:00 0// :0 Page of //0

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85 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

86 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA Stockade, Task For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 ::0 AM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

87 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

88 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

89 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The samples were received on //0 :0 PM; the samples arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following samples required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -S0 (0--), -S0 (0--), -S0 (0--), -S0 (0--), (LCS 0-0/-A), (MB 0-0/-A), (0--A--I), (0--A--G MS) and (0--A--H MSD). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 0B: The post digestion spike % recovery for Cd, Co, Ni, Sb, Zn associated with batch 0-0 was outside of control limits. Method 0B: The following sample was diluted due to the abundance of non-target analytes: -S0 (0--). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

90 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Arsenic.. mg/kg 0B Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Vanadium.. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Cadmium mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead.. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

91 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// : Arsenic. Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ : 0/0/ : Page of //0

92 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// : Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium. Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ : 0/0/ : Page of //0

93 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// 0:0 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0/0/ : 0/0/ 0:00 PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0/0/ : 0/0/ 0:00 ug/kg 0/0/ : 0/0/ 0:00 ug/kg 0/0/ : 0/0/ 0:00 ug/kg 0/0/ : 0/0/ 0:00 ug/kg 0/0/ : 0/0/ 0:00 ug/kg 0/0/ : 0/0/ 0:00 Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0:00 DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0:00 Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// : Arsenic Barium Beryllium Cadmium 0. Chromium Cobalt. Copper Lead Molybdenum Nickel Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ : 0/0/ :0 Page of //0

94 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// 0:0 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: Prepared Analyzed Tetrachloro-m-xylene 0-0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// :0 Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper Lead. Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ : 0/0/ : Page of //0

95 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -S S S S0 0 LCS 0-0/-A Lab Control Sample MB 0-0/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

96 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL PCB- 0 ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg 0 - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0/0/ : 0// :0 Arsenic.0 mg/kg 0/0/ : 0// :0 Barium 0.0 mg/kg 0/0/ : 0// :0 Beryllium 0. mg/kg 0/0/ : 0// :0 Cadmium 0. mg/kg 0/0/ : 0// :0 Chromium 0.0 mg/kg 0/0/ : 0// :0 Cobalt 0.0 mg/kg 0/0/ : 0// :0 Copper. mg/kg 0/0/ : 0// :0 Lead 0.0 mg/kg 0/0/ : 0// :0 Molybdenum 0.0 mg/kg 0/0/ : 0// :0 Nickel 0.0 mg/kg 0/0/ : 0// :0 Selenium.0 mg/kg 0/0/ : 0// :0 Silver 0. mg/kg 0/0/ : 0// :0 Thallium 0.0 mg/kg 0/0/ : 0// :0 Vanadium 0.0 mg/kg 0/0/ : 0// :0 Zinc. mg/kg 0/0/ : 0// :0 Page of //0

97 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt 0.0. mg/kg 0-0 Copper mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg Nickel 0.0. mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0.0 mg/kg 0-0 Thallium mg/kg Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-00/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 00 MB MB Result Qualifier RL Mercury 0.0 mg/kg 0/0/ : 0/0/ : MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-00/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 00 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

98 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid S0 Solid S0 Solid S0 Solid 0 0 MB 0-0/-A Method Blank Solid 0 0 LCS 0-0/-A Lab Control Sample Solid 0 0 Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0-- -S0 Solid 0-- -S0 Solid 0-- -S0 Solid MB 0-0/-A Method Blank Solid LCS 0-0/-A Lab Control Sample Solid Metals Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 00B 0-- -S0 Solid 00B 0-- -S0 Solid 00B 0-- -S0 Solid 00B MB 0-0/-A Method Blank Solid 00B LCS 0-0/-A Lab Control Sample Solid 00B Prep Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A 0-- -S0 Solid A 0-- -S0 Solid A 0-- -S0 Solid A MB 0-00/-A Method Blank Solid A LCS 0-00/-A Lab Control Sample Solid A Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-0/-A Method Blank Solid 0B 0 LCS 0-0/-A Lab Control Sample Solid 0B 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0B S0 Solid 0B S0 Solid 0B S0 Solid 0B 0 Page of //0

99 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- Metals (Continued) Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A S0 Solid A S0 Solid A S0 Solid A 00 MB 0-00/-A Method Blank Solid A 00 LCS 0-00/-A Lab Control Sample Solid A 00 Page of //0

100 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0: DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// : ASB TAL PLS Prep A 00 0/0/ : BRB TAL PLS Analysis A 0 0/0/ : OBI TAL PLS Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0: DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// : ASB TAL PLS Prep A 00 0/0/ : BRB TAL PLS Analysis A 0 0/0/ : OBI TAL PLS Lab Lab Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// 0:0 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0:00 DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// : ASB TAL PLS Prep A 00 0/0/ : BRB TAL PLS Analysis A 0 0/0/ :0 OBI TAL PLS Lab Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// 0:0 Matrix: Solid Date Received: 0// :0 Prep Type Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0: DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// :0 ASB TAL PLS Prep A 00 0/0/ : BRB TAL PLS Analysis A 0 0/0/ : OBI TAL PLS Lab Page of //0

101 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

102 Accreditation/Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program EPA Region Identification Number Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

103 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

104 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -S0 Solid 0// 0:00 0// : S0 Solid 0// 0:00 0// : S0 Solid 0// 0:0 0// : S0 Solid 0// 0:0 0// :0 Page of //0

105 Page 0 of //0

106 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

107 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 00 Customer ID: VEOK Customer PO: Project ID: Attention: CHRIS BURNS Phone: () -0 Vista Environmental Consulting, Inc. Teagarden St Received Date: 0//0 :0 PM San Leandro, CA Analysis Date: 0//0 Project: FORA /0, Task Fax: Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous -AS pt Composite, North Wing, West Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep -AS pt Composite, West Wing, North Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep -AS pt Composite, West Wing, West Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep -AS pt Composite, West Wing, South Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz 0% Gypsum % Non-fibrous (Other) 0% Quartz 0% Gypsum % Non-fibrous (Other) 0% Quartz 0% Gypsum % Non-fibrous (Other) 0% Quartz 0% Gypsum % Non-fibrous (Other) Asbestos % Type None Detected None Detected None Detected None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 :: ASB_PLM_000_ Printed: //0 : PM Page of

108 OrderID: 00 Page Of

109 EMSL Analytical, Inc. McCormick Street San Leandro, CA Phone/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 0 Customer ID: VEOK Customer PO: Project ID: Attention: CHRIS BURNS Phone: () -0 Vista Environmental Consulting, Inc. Fax: Teagarden St Received: 0//0 : PM San Leandro, CA Analysis Date: 0/0/0 Project: FORA 0 Task Collected: Test Report: PLM Analysis of Bulk Samples for Asbestos via EPA 00/R-/ Method with CARB Prep (Milling) Level A for 0.% Target Analytical Sensitivity Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous % Type Asbestos -AGG Pt Composite, Dining Room Brown Non-Fibrous Homogeneous 0% Non-fibrous (Other) None Detected -AGG Pt Composite, Northwing South Brown Non-Fibrous Homogeneous 0% Non-fibrous (Other) None Detected -AGG Pt Composite, Northwing Central Brown Non-Fibrous Homogeneous 0% Non-fibrous (Other) None Detected -AGG Pt Composite, Northwing North Brown Non-Fibrous Homogeneous 0% Non-fibrous (Other) None Detected Analyst(s) Adam C. Fink () Matthew Batongbacal or other approved signatory This report relates only to the samples listed above and may not be reproduced except in full, without EMSL's written approval. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. EMSL is not responsible for sample collection activities or method limitations. Some samples may contain asbestos fibers below the resolution limit of PLM. EMSL recommends that samples reported as none detected or less than the limit of detection undergo additional analysis via TEM.Samples received in good condition unless otherwise noted. Samples analyzed by EMSL Analytical, Inc San Leandro, CA Report amended: 0/0/0 :0: Replaces initial report from: 0/0/0 0:: Reason Code: Client-Change to PO ASB_PLMPC_000_000 Printed //0 :0:0PM Page of

110 OrderID: 0 Page Of

111 BUILDING The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

112 BUILDING BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, North, East and West* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel. mg/kg.,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

113 BUILDING BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -Point Composite, North, East and West PCBs Sample # Location Result (mg/kg) -S0 -Point Composite, North, East and West

114 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA Stockade, Task For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :: AM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

115 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

116 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

117 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following samples required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -S0 (0--), (LCS 0-0/-A) and (MB 0-0/-A). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 0B: The post digestion spike % recovery for Cd, Co, Ni, Sb, Zn associated with batch 0-0 was outside of control limits. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

118 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

119 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// 0:00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- 0 ug/kg 0/0/ : 0/0/ 0:0 PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0/0/ : 0/0/ 0:0 0 ug/kg 0/0/ : 0/0/ 0:0 0 ug/kg 0/0/ : 0/0/ 0:0 0 ug/kg 0/0/ : 0/0/ 0:0 0 ug/kg 0/0/ : 0/0/ 0:0 0 ug/kg 0/0/ : 0/0/ 0:0 Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0:0 DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0:0 Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// : Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : 0. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// :. mg/kg 0/0/ : 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ :0 0/0/ : Page of //0

120 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -S0 LCS 0-0/-A Lab Control Sample MB 0-0/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

121 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL PCB- 0 ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg 0 - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0/0/ : 0// :0 Arsenic.0 mg/kg 0/0/ : 0// :0 Barium 0.0 mg/kg 0/0/ : 0// :0 Beryllium 0. mg/kg 0/0/ : 0// :0 Cadmium 0. mg/kg 0/0/ : 0// :0 Chromium 0.0 mg/kg 0/0/ : 0// :0 Cobalt 0.0 mg/kg 0/0/ : 0// :0 Copper. mg/kg 0/0/ : 0// :0 Lead 0.0 mg/kg 0/0/ : 0// :0 Molybdenum 0.0 mg/kg 0/0/ : 0// :0 Nickel 0.0 mg/kg 0/0/ : 0// :0 Selenium.0 mg/kg 0/0/ : 0// :0 Silver 0. mg/kg 0/0/ : 0// :0 Thallium 0.0 mg/kg 0/0/ : 0// :0 Vanadium 0.0 mg/kg 0/0/ : 0// :0 Zinc. mg/kg 0/0/ : 0// :0 Page of //0

122 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt 0.0. mg/kg 0-0 Copper mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg Nickel 0.0. mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0.0 mg/kg 0-0 Thallium mg/kg Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL Mercury 0.0 mg/kg 0/0/ :0 0/0/ :0 MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg Page of //0

123 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0 0 MB 0-0/-A Method Blank Solid 0 0 LCS 0-0/-A Lab Control Sample Solid 0 0 Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid MB 0-0/-A Method Blank Solid LCS 0-0/-A Lab Control Sample Solid Metals Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 00B MB 0-0/-A Method Blank Solid 00B LCS 0-0/-A Lab Control Sample Solid 00B Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A MB 0-0/-A Method Blank Solid A LCS 0-0/-A Lab Control Sample Solid A Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-0/-A Method Blank Solid 0B 0 LCS 0-0/-A Lab Control Sample Solid 0B 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0B 0 Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A 0 MB 0-0/-A Method Blank Solid A 0 LCS 0-0/-A Lab Control Sample Solid A 0 Page of //0

124 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// 0:00 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0:0 DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// : ASB TAL PLS Prep A 0 0/0/ :0 BRB TAL PLS Analysis A 0 0/0/ : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

125 Accreditation/Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program EPA Region Identification Number Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

126 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

127 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -S0 Solid 0// 0:00 0// :0 Page of //0

128 Page of //0

129 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

130 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 000 Customer ID: VEOK Customer PO: Project ID: Attention: CHRIS BURNS Phone: () -0 Vista Environmental Consulting, Inc. Teagarden St Received Date: 0//0 :0 PM San Leandro, CA Analysis Date: 0//0 Project: FORA -0, Task Fax: Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous -AS Point Composite (N, E, Wx) Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz 0% Gypsum % Non-fibrous (Other) Asbestos % Type None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 :: ASB_PLM_000_ Printed: //0 : PM Page of

131 OrderID: 000 Page Of

132 BUILDING The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

133 BUILDING BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, All Sides* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt mg/kg No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Silver 0. mg/kg 0. 0 No,00 No,00 No Vanadium mg/kg 0 No,00 No 0 No Zinc 0 mg/kg 0,000 No 0,000 No 0,000 No Mercury 0. mg/kg 0. No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt mg/kg,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel. mg/kg.,000 No No Silver 0. mg/kg No No Vanadium mg/kg,00 No No Zinc 0 mg/kg 0,000 No No Mercury 0. mg/kg 0. 0 No No *Metals not listed were None Detected ()

134 BUILDING BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -Point Composite, All Sides PCBs Sample # Location Result (mg/kg) -S0 -Point Composite, All Sides

135 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA STOCKADE, TASK For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :: PM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

136 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

137 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

138 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following sample required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -SO (0--). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

139 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -SO Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt mg/kg 0B Copper. mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Silver mg/kg 0B Vanadium. mg/kg 0B Zinc 0. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

140 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -SO Date Collected: 0// :00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : ug/kg 0// :0 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// :0 0// : Arsenic Barium Beryllium Cadmium Chromium Cobalt.0 Copper Lead Molybdenum Nickel. Selenium Silver 0. Thallium Vanadium Zinc 0 MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0.0 mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// : 0// : Page of //0

141 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -SO LCS 0-/-A Lab Control Sample MB 0-/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

142 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL PCB- 0 ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0// :0 0// :0 Arsenic.0 mg/kg 0// :0 0// :0 Barium 0.0 mg/kg 0// :0 0// :0 Beryllium 0. mg/kg 0// :0 0// :0 Cadmium 0. mg/kg 0// :0 0// :0 Chromium 0.0 mg/kg 0// :0 0// :0 Cobalt 0.0 mg/kg 0// :0 0// :0 Copper. mg/kg 0// :0 0// :0 Lead 0.0 mg/kg 0// :0 0// :0 Molybdenum 0.0 mg/kg 0// :0 0// :0 Nickel 0.0 mg/kg 0// :0 0// :0 Selenium.0 mg/kg 0// :0 0// :0 Silver 0. mg/kg 0// :0 0// :0 Thallium 0.0 mg/kg 0// :0 0// :0 Vanadium 0.0 mg/kg 0// :0 0// :0 Zinc. mg/kg 0// :0 0// :0 Page of //0

143 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium 0.0. mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt mg/kg 0-0 Copper 0.0. mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg 0-0 Nickel mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0. mg/kg 0-0 Thallium 0.0. mg/kg 0-0 Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL Mercury 0.0 mg/kg 0// : 0// : MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

144 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid MB 0-/-A Method Blank Solid LCS 0-/-A Lab Control Sample Solid Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-/-A Method Blank Solid 0 LCS 0-/-A Lab Control Sample Solid 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0 Metals Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 00B MB 0-/-A Method Blank Solid 00B LCS 0-/-A Lab Control Sample Solid 00B Analysis Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0B MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Page of //0

145 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Client Sample ID: -SO Lab Sample ID: 0-- Date Collected: 0// :00 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0// :0 RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// :0 JNG TAL PLS Analysis 0B 0// : CAM TAL PLS Prep A 0// : JNG TAL PLS Analysis A 00 0// : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

146 Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

147 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

148 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -SO Solid 0// :00 0// :0 Page of //0

149 Page of //0

150 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

151 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 0 Customer ID: VEOK Customer PO: Project ID: Attention: CHRIS BURNS Phone: () -0 Vista Environmental Consulting, Inc. Teagarden St Received Date: 0//0 : PM San Leandro, CA Analysis Date: 0//0 Project: FORA /0, Task Fax: Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous -AS pt Composite Brown Non-Fibrous Homogeneous Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz % Ca Carbonate % Gypsum % Non-fibrous (Other) Asbestos % Type None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 :: ASB_PLM_000_ Printed: //0 : PM Page of

152 OrderID: 0 Page Of

153 BUILDING BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, All Sides* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Arsenic. mg/kg. 0.0 YES 0. YES 0. YES Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper. mg/kg.,0 No,000 No,000 No Lead mg/kg 0 YES 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0. mg/kg 0. No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Arsenic. mg/kg. 00 No No Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper. mg/kg.,00 No No Lead mg/kg,000 No YES Nickel. mg/kg.,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0. mg/kg 0. 0 No No *Metals not listed were None Detected ()

154 BUILDING BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -Point Composite, All Sides PCBs Sample # Location Result (mg/kg) -S0 -Point Composite, All Sides

155 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA STOCKADE, TASK For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :0: PM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

156 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

157 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

158 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following sample required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -SO (0--). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

159 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -SO Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Arsenic..0 mg/kg 0B Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0.0 mg/kg 0B Copper.. mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc. mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

160 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -SO Date Collected: 0// :00 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- 0 ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0// :0 0// : Arsenic. Barium Beryllium Cadmium Chromium Cobalt. Copper. Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac.0 mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0.0 mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : 0.0 mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :.0 mg/kg 0// :0 0// : 0. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// :. mg/kg 0// :0 0// : Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0// : 0// : Page of //0

161 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -SO LCS 0-/-A Lab Control Sample MB 0-/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

162 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL PCB- 0 ug/kg 0// :0 0// : PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : 0 ug/kg 0// :0 0// : MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0// :0 0// : DCB Decachlorobiphenyl - 0// :0 0// : Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: Prep Batch: MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0// :0 0// :0 Arsenic.0 mg/kg 0// :0 0// :0 Barium 0.0 mg/kg 0// :0 0// :0 Beryllium 0. mg/kg 0// :0 0// :0 Cadmium 0. mg/kg 0// :0 0// :0 Chromium 0.0 mg/kg 0// :0 0// :0 Cobalt 0.0 mg/kg 0// :0 0// :0 Copper. mg/kg 0// :0 0// :0 Lead 0.0 mg/kg 0// :0 0// :0 Molybdenum 0.0 mg/kg 0// :0 0// :0 Nickel 0.0 mg/kg 0// :0 0// :0 Selenium.0 mg/kg 0// :0 0// :0 Silver 0. mg/kg 0// :0 0// :0 Thallium 0.0 mg/kg 0// :0 0// :0 Vanadium 0.0 mg/kg 0// :0 0// :0 Zinc. mg/kg 0// :0 0// :0 Page of //0

163 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium 0.0. mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt mg/kg 0-0 Copper 0.0. mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg 0-0 Nickel mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0. mg/kg 0-0 Thallium 0.0. mg/kg 0-0 Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: MB MB Result Qualifier RL Mercury 0.0 mg/kg 0// : 0// : MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 00 Prep Batch: Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg 0-0 Page of //0

164 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid MB 0-/-A Method Blank Solid LCS 0-/-A Lab Control Sample Solid Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-/-A Method Blank Solid 0 LCS 0-/-A Lab Control Sample Solid 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0 Metals Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Prep Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 00B MB 0-/-A Method Blank Solid 00B LCS 0-/-A Lab Control Sample Solid 00B Analysis Batch: Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid 0B MB 0-/-A Method Blank Solid 0B LCS 0-/-A Lab Control Sample Solid 0B Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -SO Solid A MB 0-/-A Method Blank Solid A LCS 0-/-A Lab Control Sample Solid A Page of //0

165 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Client Sample ID: -SO Lab Sample ID: 0-- Date Collected: 0// :00 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0// :0 RAC TAL PLS Batch Number Analysis // : JZT TAL PLS Prep 00B 0// :0 JNG TAL PLS Analysis 0B 0// : CAM TAL PLS Prep A 0// : JNG TAL PLS Analysis A 00 0// : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

166 Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA STOCKADE, TASK Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each certification below. Authority Program EPA Region Certification ID Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

167 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

168 Client: Vista Environmental Consulting, Inc Project/Site: FORA STOCKADE, TASK Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -SO Solid 0// :00 0// :0 Page of //0

169 Page of //0

170 Login Sample Receipt Checklist Client: Vista Environmental Consulting, Inc Job Number: 0-- Login Number: List Number: Creator: Arauz, Dennis Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey meter. The cooler's custody seal, if present, is intact. Sample custody seals, if present, are intact. The cooler or samples do not appear to have been compromised or tampered with. Samples were received on ice. Cooler Temperature is acceptable. Cooler Temperature is recorded. COC is present. COC is filled out in ink and legible. COC is filled out with all pertinent information. Is the Field Sampler's name present on COC? There are no discrepancies between the containers received and the COC. Samples are received within Holding Time (excluding tests with immediate HTs) Sample containers have legible labels. Containers are not broken or leaking. Sample collection date/times are provided. Appropriate sample containers are used. Sample bottles are completely filled. Sample Preservation Verified. There is sufficient vol. for all requested analyses, incl. any requested MS/MSDs Containers requiring zero headspace have no headspace or bubble is <mm (/"). Multiphasic samples are not present. Samples do not require splitting or compositing. Residual Chlorine Checked. N/A N/A N/A N/A N/A List Source: Page of //0

171 EMSL Analytical, Inc. McCormick Street San Leandro, CA Tel/Fax: () - / () -0 / sanleandrolab@emsl.com EMSL Order: 0 Customer ID: VEOK Customer PO: Project ID: Attention: CHRIS BURNS Phone: () -0 Vista Environmental Consulting, Inc. Teagarden St Received Date: 0//0 : PM San Leandro, CA Analysis Date: 0//0 Project: FORA /0, Task Fax: Collected Date: 0//0 Test Report: Asbestos Analysis of Bulk Materials via EPA 00/R-/ Method using Polarized Light Microscopy Non-Asbestos Sample Description Appearance % Fibrous % Non-Fibrous -AS pt Composite, Soil Brown Non-Fibrous Homogeneous % Cellulose Soil is a problem matrix. Other analytical options are recommended such as EPA 00 PLM/TEM with milling prep 0% Quartz % Gypsum 0% Matrix % Non-fibrous (Other) Asbestos % Type None Detected Analyst(s) Shane Heisser () Matthew Batongbacal or Other Approved Signatory EMSL maintains liability limited to cost of analysis. This report relates only to the samples reported and may not be reproduced, except in full, without written approval by EMSL. EMSL bears no responsibility for sample collection activities or analytical method limitations. Interpretation and use of test results are the responsibility of the client. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the federal government. Non-friable organically bound materials present a problem matrix and therefore EMSL recommends gravimetric reduction prior to analysis. Samples received in good condition unless otherwise noted. Estimated accuracy, precision and uncertainty data available upon request. Unless requested by the client, building materials manufactured with multiple layers (i.e. linoleum, wallboard, etc.) are reported as a single sample. Reporting limit is % Samples analyzed by EMSL Analytical, Inc San Leandro, CA NVLAP Lab Code -, WA C Initial report from: 0//0 ::00 ASB_PLM_000_ Printed: //0 : AM Page of

172 OrderID: 0 Page Of

173 BUILDING The information contained in these appendices are not stand alone documents and should not be separated from this report. For specific regulatory requirements regarding these materials please refer to the information provided in the Main Report.

174 BUILDING BACKGROU SOIL SAMPLING SUMMARY Title Metals Sample: - S0, Depth: 0-", Location: -Point Composite, All Sides* ESL for Shallow Soils Residential (mg/kg) Exceed the Residential ESL? ESL for Shallow Soils Commercial/Industrial (mg/kg) Exceed the Commercial ESL? ESL for Any Land Use, Construction Worker Shallow and Deep Soil Exposure (mg/kg) Exceed the Construction ESL? Lab Result Units Conversion to mg/kg Barium mg/kg,000 No 0,000 No,000 No Chromium (Based on VI) mg/kg 0. YES. YES. YES Cobalt. mg/kg. No 0 No No Copper mg/kg,0 No,000 No,000 No Lead mg/kg 0 No 0 No No Nickel. mg/kg. 0 No,000 No No Vanadium mg/kg 0 No,00 No 0 No Zinc mg/kg,000 No 0,000 No 0,000 No Mercury 0.0 mg/kg 0.0 No No No TTLC Lab Result Units Conversion to mg/kg TTLC Cal/Haz Level (mg/kg) Exceed the Cal/Haz Level? Need STLC? Barium mg/kg,000 No No Chromium mg/kg,00 No No Cobalt. mg/kg.,000 No No Copper mg/kg,00 No No Lead mg/kg,000 No No Nickel. mg/kg.,000 No No Vanadium mg/kg,00 No No Zinc mg/kg,000 No No Mercury 0.0 mg/kg No No *Metals not listed were None Detected ()

175 BUILDING BACKGROU SOIL SAMPLING SUMMARY Asbestos Sample # Location Result (% Wt) -AS0 -Point Composite, All Sides PCBs Sample # Location Result (mg/kg) -S0 -Point Composite, All Sides

176 ANALYTICAL REPORT TestAmerica Laboratories, Inc. 0 Quarry Lane Pleasanton, CA Tel: ()- TestAmerica Job ID: 0-- Client Project/Site: FORA Stockade, Task For: Vista Environmental Consulting, Inc Teagarden Street San Leandro, California Attn: Chris Burns Authorized for release by: //0 :: AM Dimple Sharma, Senior Project Manager ()- dimple.sharma@testamericainc.com This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory.

177 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Table of Contents TestAmerica Job ID: 0-- Cover Page Table of Contents Definitions/Glossary Case Narrative Detection Summary Client Sample Results Surrogate Summary QC Sample Results QC Association Summary Lab Chronicle Certification Summary Method Summary Sample Summary Chain of Custody Receipt Checklists Page of //0

178 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Glossary Abbreviation Definitions/Glossary These commonly used abbreviations may or may not be present in this report. Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL CNF DER Dil Fac DL, RA, RE, IN DLC MDA EDL MDC MDL ML NC PQL QC RER RL RPD TEF TEQ Contains Free Liquid Contains no Free Liquid Duplicate error ratio (normalized absolute difference) Dilution Factor Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample Decision level concentration Minimum detectable activity Estimated Detection Limit Minimum detectable concentration Method Detection Limit Minimum Level (Dioxin) Not Calculated Not detected at the reporting limit (or MDL or EDL if shown) Practical Quantitation Limit Quality Control Relative error ratio Reporting Limit or Requested Limit (Radiochemistry) Relative Percent Difference, a measure of the relative difference between two points Toxicity Equivalent Factor (Dioxin) Toxicity Equivalent Quotient (Dioxin) TestAmerica Job ID: 0-- Page of //0

179 Case Narrative Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Job ID: 0-- Laboratory: Narrative Comments No additional comments. Job Narrative 0-- Receipt The sample was received on //0 :0 PM; the sample arrived in good condition, properly preserved and, where required, on ice. The temperature of the cooler at receipt was.º C. GC Semi VOA Method 0: The following samples required a tetrabutylammonium sulfite (TBA) clean-up to reduce matrix interferences caused by sulfur: -S0 (0--), (LCS 0-0/-A) and (MB 0-0/-A). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 0B: The post digestion spike % recovery for Cd, Co, Ni, Sb, Zn associated with batch 0-0 was outside of control limits. Method 0B: The following sample was diluted due to the abundance of non-target analytes: -S0 (0--). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Page of //0

180 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Detection Summary TestAmerica Job ID: 0-- Client Sample ID: -S0 Lab Sample ID: 0-- Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium. mg/kg 0B Chromium. mg/kg 0B Cobalt. 0. mg/kg 0B Copper.0 mg/kg 0B Lead. mg/kg 0B Nickel.. mg/kg 0B Vanadium. mg/kg 0B Zinc.0 mg/kg 0B Mercury mg/kg A This Detection Summary does not include radiochemical test results. Page of //0

181 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Client Sample Results TestAmerica Job ID: 0-- Client Sample ID: -S0 Date Collected: 0// :0 Date Received: 0// :0 Lab Sample ID: 0-- Matrix: Solid Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Result Qualifier RL PCB- ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate %Recovery Qualifier Limits MDL Unit D Prepared Analyzed Dil Fac ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: ug/kg 0/0/ : 0/0/ 0: Prepared Analyzed Tetrachloro-m-xylene 0-0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Method: 0B - Metals (ICP) Result Qualifier RL Antimony. mg/kg 0/0/ : 0// :0 Arsenic Barium Beryllium Cadmium Chromium Cobalt. Copper Lead Molybdenum Nickel. Selenium Silver Thallium Vanadium Zinc MDL Unit D Prepared Analyzed Dil Fac Dil Fac. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0.0 mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0 0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0. mg/kg 0/0/ : 0// :0.0 mg/kg 0/0/ : 0// :0 Method: A - Mercury (CVAA) Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury mg/kg 0/0/ :0 0/0/ : Page of //0

182 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Surrogate Summary TestAmerica Job ID: 0-- Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Matrix: Solid Prep Type: Percent Surrogate Recovery (Acceptance Limits) TCX DCB Lab Sample ID Client Sample ID (-) (-) 0-- -S0 0 LCS 0-0/-A Lab Control Sample MB 0-0/-A Method Blank Surrogate Legend TCX = Tetrachloro-m-xylene DCB = DCB Decachlorobiphenyl Page of //0

183 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Sample Results Method: 0 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography TestAmerica Job ID: 0-- Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL PCB- 0 ug/kg 0/0/ : 0/0/ 0: PCB- PCB- PCB- PCB- PCB- PCB-0 Surrogate MDL Unit D Prepared Analyzed Dil Fac 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: 0 ug/kg 0/0/ : 0/0/ 0: MB %Recovery MB Qualifier Limits Prepared Analyzed Tetrachloro-m-xylene - 0/0/ : 0/0/ 0: DCB Decachlorobiphenyl - 0/0/ : 0/0/ 0: Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec PCB- ug/kg - PCB-0 ug/kg 0 - Surrogate LCS %Recovery LCS Qualifier Limits Tetrachloro-m-xylene - DCB Decachlorobiphenyl - Limits Dil Fac Method: 0B - Metals (ICP) Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony 0.0 mg/kg 0/0/ : 0// :0 Arsenic.0 mg/kg 0/0/ : 0// :0 Barium 0.0 mg/kg 0/0/ : 0// :0 Beryllium 0. mg/kg 0/0/ : 0// :0 Cadmium 0. mg/kg 0/0/ : 0// :0 Chromium 0.0 mg/kg 0/0/ : 0// :0 Cobalt 0.0 mg/kg 0/0/ : 0// :0 Copper. mg/kg 0/0/ : 0// :0 Lead 0.0 mg/kg 0/0/ : 0// :0 Molybdenum 0.0 mg/kg 0/0/ : 0// :0 Nickel 0.0 mg/kg 0/0/ : 0// :0 Selenium.0 mg/kg 0/0/ : 0// :0 Silver 0. mg/kg 0/0/ : 0// :0 Thallium 0.0 mg/kg 0/0/ : 0// :0 Vanadium 0.0 mg/kg 0/0/ : 0// :0 Zinc. mg/kg 0/0/ : 0// :0 Page of //0

184 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method: 0B - Metals (ICP) (Continued) QC Sample Results TestAmerica Job ID: 0-- Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Antimony 0.0. mg/kg 0-0 Arsenic 0.0. mg/kg 0-0 Barium mg/kg 0-0 Beryllium 0.0. mg/kg 0-0 Cadmium 0.0. mg/kg 0-0 Chromium 0.0. mg/kg 0-0 Cobalt 0.0. mg/kg 0-0 Copper mg/kg 0-0 Lead 0.0. mg/kg 0-0 Molybdenum 0.0. mg/kg Nickel 0.0. mg/kg 0-0 Selenium 0.0. mg/kg 0-0 Silver.0.0 mg/kg 0-0 Thallium mg/kg Vanadium 0.0. mg/kg 0-0 Zinc 0.0. mg/kg 0-0 Method: A - Mercury (CVAA) Lab Sample ID: MB 0-0/-A Client Sample ID: Method Blank Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 MB MB Result Qualifier RL Mercury 0.0 mg/kg 0/0/ :0 0/0/ :0 MDL Unit D Prepared Limits Analyzed Dil Fac Lab Sample ID: LCS 0-0/-A Client Sample ID: Lab Control Sample Matrix: Solid Prep Type: Analysis Batch: 0 Prep Batch: 0 Spike LCS LCS %Rec. Added Result Qualifier Unit D %Rec Limits Mercury mg/kg Page of //0

185 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task QC Association Summary TestAmerica Job ID: 0-- GC Semi VOA Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0 0 MB 0-0/-A Method Blank Solid 0 0 LCS 0-0/-A Lab Control Sample Solid 0 0 Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid MB 0-0/-A Method Blank Solid LCS 0-0/-A Lab Control Sample Solid Metals Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 00B MB 0-0/-A Method Blank Solid 00B LCS 0-0/-A Lab Control Sample Solid 00B Prep Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A MB 0-0/-A Method Blank Solid A LCS 0-0/-A Lab Control Sample Solid A Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch MB 0-0/-A Method Blank Solid 0B 0 LCS 0-0/-A Lab Control Sample Solid 0B 0 Analysis Batch: 00 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid 0B 0 Analysis Batch: 0 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 0-- -S0 Solid A 0 MB 0-0/-A Method Blank Solid A 0 LCS 0-0/-A Lab Control Sample Solid A 0 Page of //0

186 Lab Chronicle Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Client Sample ID: -S0 Lab Sample ID: 0-- Date Collected: 0// :0 Matrix: Solid Date Received: 0// :0 Prep Type Laboratory References: Batch Type Batch Method Run Dilution Factor Prepared or Analyzed Analyst Prep 0 0/0/ : TTC TAL PLS Batch Number Analysis 0 0 0/0/ 0: DCH TAL PLS Prep 00B 0 0/0/ : JNG TAL PLS Analysis 0B 00 0// :0 ASB TAL PLS Prep A 0 0/0/ :0 BRB TAL PLS Analysis A 0 0/0/ : OBI TAL PLS TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Lab Page of //0

187 Accreditation/Certification Summary Client: Vista Environmental Consulting, Inc TestAmerica Job ID: 0-- Project/Site: FORA Stockade, Task Laboratory: Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program EPA Region Identification Number Expiration Date California State Program 0-- Analysis Method Prep Method Matrix Page of //0

188 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Method Summary TestAmerica Job ID: 0-- Method Method Description Protocol Laboratory 0 Polychlorinated Biphenyls (PCBs) by Gas Chromatography SW TAL PLS 0B Metals (ICP) SW TAL PLS A Mercury (CVAA) SW TAL PLS Protocol References: SW = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November And Its Updates. Laboratory References: TAL PLS =, 0 Quarry Lane, Pleasanton, CA, TEL ()- Page of //0

189 Client: Vista Environmental Consulting, Inc Project/Site: FORA Stockade, Task Sample Summary TestAmerica Job ID: 0-- Lab Sample ID Client Sample ID Matrix Collected Received 0-- -S0 Solid 0// :0 0// :0 Page of //0

190 Page of //0