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HomeMy WebLinkAbout120014-SOILS Date: April 10, 2012 Project No.: 488-1-4 Prepared For: Mr. Kevin Crossman STUDIOS ARCHITECTURE 405 Howard Street San Francisco, California 94105 Re: Stockpile Soil Sampling Services Apple Results Way – Building 12 Lobby Results Way Cupertino, California Dear Mr. Crossman: We are pleased to present this letter summarizing the results of the stockpile soil samples collected at the Apple Results Way Building 12 Lobby. This work was performed in accordance with our agreement dated March 19, 2012. PROJECT BACKGROUND The project Site is located at Results Way in Cupertino, California. The Site is currently occupied by several attached one- to two-story concrete tilt-up commercial buildings. Building 12 is the northernmost building, and is elevat ed approximately 15 to 20 feet above the adjacent pavements to the north and east on what is presumed to be a graded pad. We understand that there is no basement level for Building 12. Along the northern perimeter, the fill pad extends a few feet beyond the wall and then slopes down to the parking lot. A site retaining wall is located at the northeast corner. The drive on the west side of the building slopes up to about the finished floor elevation of Building 12. Approximately 500 cubic yards of soil was generated during construction activities. Approximately 300 cubic yards will be reused on-Site and 200 cubic yards will require off-haul. SOIL SAMPLING On March 26 and 27, 2012 our field engineer met with the on-Site contractor (XL Construction) and identified the location of the stockpile. Random stockpile locations were selected and surface soils were screened for volatile hydrocarbons using a Mini-RAE 2000 Organic Vapor Meter (OVM); OVM readings appeared within range of typical background concentrations. Our field engineer selected two random stockpile locations and used hand sampling equipment to collect two discrete soil samples from the upper approximately 1 and 2 feet of soil. At each location three 5-gram Core N’ One™ capsules were collected following Department of Toxic Substances Control (DTSC) guidance for volatile hydrocarbon analysis. The samples were labeled with a unique identification number, placed in an ice-chilled cooler, and transported to a 488-1-4 Results Way Page 2 April 10, 2012 state certified analytical laboratory with chain of custody documentation. All sampling equipment was cleaned using a Liquinox solution prior to use at each sample point. The two discrete soil samples were analyzed for organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) (EPA Test Method 8081/8082), total California Assessment Manual (CAM) metals (EPA Test Method 6010B), soluble CAM 17 metals using Soluble Threshold Limit Concentration extraction techniq ues, hexavalent chromium, diesel (TPHd) and oil-range (TPHo) petroleum hydrocarbons (EPA Test Method 8015B) with a silica gel cleanup, and semi-volatile organic compounds (VOCs) (EPA Test Method 8270). The soil samples collected in the Core N’ One™ capsules were analyzed for gasoline-range petroleum hydrocarbons (TPHg) and VOCs (EPA Test Method 8260B). ANALYTICAL RESULTS Data summary tables, analytical data sheets, and chain of custody documentation are attached to this letter. The analytical results were compared to residential California Human Health Screening Levels (CHHSLs) developed by the California Environmental Protection Agency (CalEPA) (CalEPA, 2010). Additional screening levels were used to evaluate potential soil impacts for chemicals detected but for which CHHS Ls are not available. These screening levels include Regional Screening Levels (RSLs) and Environmental Screening Levels (ESLs) established by the U.S. EPA Region 9 (USEPA, 2009) and San Francisco Bay Regional Water Quality Control Board (RWQCB, 2008), respectively. ESLs were used in the event that both CHHSLs and RSLs are not established. CHHSLs, RSLs, and ESLs are used to screen properties for potential human health concerns where releases of chemicals to soil have occurred. Under most circumstances, the presence of a chemical in soil below the corresponding CHHSL, RSL, or ESL c an be assumed not to pose a significant risk to human health. A chemical exceeding the CHHSL, RSL, or ESL does not indicate that adverse impacts to human health are occurring or will occur but suggests that further evaluation of potential health concerns is warranted. A summary of the analytical results is provided below. OCPs including 4,4’-DDD, 4,4’-DDE, 4,4’-DDT, alpha-Chlordane, and gamma-Chlordane were detected in the soil samples; however, none of the detected concentrations exceeded their respective residential CHHSL. No other organochlorine pesticides were detected in the soil samples. TPHd was detected in 1 of 2 soil samples at 1.2 mg/kg. The residential ESL for TPHd is 83 mg/kg. No PCBs, hexavalent chromium, TPHg, TPHo, semi -VOCs, or VOCs were detected in the soil samples above their respective laboratory reporting limit. Total metal concentrations appeared within range of typical background concentrations (Scott, 1991). 488-1-4 Results Way Page 3 April 10, 2012 CONCLUSIONS AN RECOMMENDATIONS Laboratory analysis of the stockpiled soil samples detected low concentrations (e.g. less than environmental screening criteria) of 4,4’-DDD, 4,4’-DDE, 4,4’-DDT, alpha-chlordane, gamma- chlordane, and/or TPHd in the soil samples. No PCBs, hexavalent chromium, TPHg, TPHo, semi-VOCs, or VOCs were detected in the two soil samples above their respective laboratory reporting limits. Additionally, the detected metal concentrations appeared within range of typical background levels and/or less than their respective residential CHHSL. Based on the results, the stockpiled soil appears suitable for off-Site disposal at a Class II or III waste disposal facility or reuse. The selected receiving facility’s acceptance criteria should be obtained and compared to the data collected. We recommend this letter be provided to the facility or property owner that will receive the soil and that written approval to dispose of the soil be obtained. REFERENCES CalEPA, 2010. Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Properties, January 2005, updated September 23, 2010. Regional Water Quality Control Board, 2008. Screening For Environmental Concerns at Sites With Contaminated Soil and Groundwater (November 2007), San Francisco Bay Regional Water Quality Control Board, California EPA, http://www.waterboards.ca.gov/sanfranciscobay/esl.htm , updated May 2008. Scott, 1991. Background Metal Concentrations in Soils in Northern Santa Clara County, California. USEPA, 2009. Regional Screening Levels for Chemical Contaminants at Superfund Sites, USEPA Region 9, updated June 2011. LIMITATIONS This letter, an instrument of professional service, was prepared for the sole use of Studios Architecture and may not be reproduced or distributed without written authorization from Cornerstone. The chemical data presented in this report may change over time and are only valid for this time and location. Cornerstone ma kes no warranty, expressed or implied, except that our services have been performed in a ccordance with the environmental principles generally accepted at this time and location. 488-1-4 Results Way Page 4 April 10, 2012 CLOSING Should you have any questions regarding this letter, or if we may be of further service, please contact us at your convenience. Sincerely, Cornerstone Earth Group, Inc. Kurt M. Soenen Principal Engineer Attachments: Data Summary Tables Laboratory Data Sheets Copies: XL Construction (1 by email) Attn: Chad Hamilton Addressee (1 by email) 488-1-4 Results Way April 10, 2012 DATA SUMMARY TABLES Sample Location Sample ID Date Depth (feet) Barium Chromium Hexavalent Chromium Cobalt Copper Lead Mercury Nickel Vanadium Zinc SP - 1 S P - 1 ( 1 ' ) 3 / 2 6 / 2 0 1 2 1 11 0 (6 . 7 ) 57 < 2 . 0 14 (0 . 4 5 ) 34 6 . 1 0 . 1 7 45 (0 . 3 1 ) 70 (0.49)50 SP - 1 S P - 1 ( 2 ' ) 3 / 2 7 / 2 0 1 2 2 14 0 (5 . 8 ) 54 < 2 . 0 14 (0 . 3 5 ) 34 7 . 9 0 . 0 7 7 48 (0 . 3 6 ) 61 (0.25)55 5, 2 0 0 10 0 , 0 0 0 3 17 6 6 0 3 , 0 0 0 1 5 0 1 8 1 , 6 0 0 5 3 0 2 3 , 0 0 0 NE 3 0 . 5 t o 7 2 N E N E 23 . 8 t o 4 7 . 5 6 . 8 t o 1 6 . 1 NE 46 . 4 t o 1 0 1 NE 47.7 to 82.8 NE 1 7 0 N E N E 6 7 5 4 N E 1 4 5 N E 1 2 0 1 2 3 NE No t e s : Va l u e i n p a r e n t h e s i s i s S T L C c o n c e n t r a t i o n i n m g / L Re s i d e n t i a l C H H S L 1 Ta b l e 1 . A n a l y ti c a l R e s u l t s o f S e l e c t e d S t o c k p il e S o i l S a m p le s - M e t a l s (C o n c e n t r a t i o n s i n m g / k g ) Ca l i f o r n i a H u m a n H e a l t h S c r e e n i n g L e v e l ( C H H S L ) , C a l E P A - J a n u a r y 2 0 0 5 No o t h e r m e t a l s w e r e d e t e c t e d a b o v e t h e i r r e s p e c t i v e l a b o r a t o r y r e p o r t i n g l i m i t . Ba c k g r o u n d R a n g e 2 Ma x i m u m B a c k g r o u n d D e t e c t i o n 2 "B a c k g r o u n d M e t a l C o n c e n t r a t i o n s i n S o i l i n N o r t h e r S a n t a C l a r a C o u n t y , C a l i f o r n i a " C h r i s t i n a M . S c o t t , D e c e m b e r , 1 9 9 1 Va l u e i s C H H S L f o r C h r o m i u m I I I No t E s t a b l i s h e d Re s u l t s W a y 48 8 - 1 - 4 Sample Location Sample ID Date Depth (feet) 4,4´-DDD 4,4´-DDE 4,4´-DDT DDT Total alpha- Chlordane gamma- Chlordane TPHd PCBs VOCs TPHg TPHo SP - 1 S P - 1 ( 1 ' ) 3 / 2 6 / 2 0 1 2 1 < 0 . 0 0 2 0 . 0 0 4 7 0 . 0 0 2 7 0 . 0 0 7 4 < 0 . 0 0 2 < 0 . 0 0 2 < 1 . 0 N D N D < 0 . 1 9 < 5 0 SP - 1 S P - 1 ( 2 ' ) 3 / 2 7 / 2 0 1 2 2 0 . 0 0 3 3 0 . 0 2 1 0 . 0 0 5 5 0 . 0 2 9 8 0 . 0 0 3 9 0 . 0 0 2 9 1 . 2 N D N D < 0 . 2 2 < 5 0 2. 3 1 . 6 1 . 6 N E 0. 4 3 3 0. 4 3 3 83 2 Va r i a b l e V a r i a b l e N E N E 1 2 3 <ND NE N o t E s t a b l i s h e d CH H S L a n d R S L n o t e s t a b l i s h e d , v a l u e i s R e s i d e n t i a l E S L , R W Q C B , S a n F r a n c i s c o B a y R e g i o n - M a y 2 0 0 8 Va l u e i s R e s i d e n t i a l C H H S L f o r T e c h n i c a l C h l o r d a n e Re s i d e n t i a l C H H S L 1 Ta b l e 2 . A n a l y ti c a l R e s u l t s o f S e l e c t e d S t o c k p il e S o i l S a m p le s - O C P s / P C B s / T P H / V O C s (C o n c e n t r a t i o n s i n m g / k g ) Ca l i f o r n i a H u m a n H e a l t h S c r e e n i n g L e v e l ( C H H S L ) , C a l E P A - J a n u a r y 2 0 0 5 No t d e t e c t e d a t o r a b o v e l a b o r a t o r y r e p o r t i n g l i m i t No t d e t e c t e d Re s u l t s W a y 48 8 - 1 - 4 488-1-4 Results Way April 10, 2012 ANALYTICAL DATA SHEETS AND CHAIN OF CUSTODY DOCUMENTATION ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica San Francisco 1220 Quarry Lane Pleasanton, CA 94566 Tel: (925)484-1919 TestAmerica Job ID: 720-41168-1 Client Project/Site: Building 12 Lobby For: Cornerstone Earth Group 1259 Oakmead Parkway Sunnyvale, California 94085 Attn: Kurt Soenen Authorized for release by: 3/30/2012 5:07:27 PM Dimple Sharma Project Manager I dimple.sharma@testamericainc.com Designee for Afsaneh Salimpour Project Manager I afsaneh.salimpour@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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: Cornerstone Earth Group Project/Site: Building 12 Lobby TestAmerica Job ID: 720-41168-1 Page 2 of 38 TestAmerica San Francisco 3/30/2012 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Qualifiers GC/MS Semi VOA Qualifier Description *RPD of the LCS and LCSD exceeds the control limits Qualifier Metals Qualifier Description B Compound was found in the blank and sample. Qualifier 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 Abbreviation %R Percent Recovery CNF Contains no Free Liquid DL, RA, RE, IN Indicates a Dilution, Reanalysis, Re-extraction, or additional Initial metals/anion analysis of the sample EDL Estimated Detection Limit E PA United States Environmental Protection Agency MDL Method Detection Limit ML Minimum Level (Dioxin) ND Not detected at the reporting limit (or MD L or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RL Reporting Limit RPD Relative Percent Di fference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica San Francisco Page 3 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: Cornerstone Earth Group TestAmerica Job ID: 720-41168-1 Project/Site: Building 12 Lobby Job ID: 720-4 1168-1 Laboratory: TestAmerica San Francisco Narrative Job Narrative 720-4 1168 -1 Comments No additional comments. Receipt All samples were received in good condition within temperature requirements. GC/MS VO A No analytical or quality issues were noted. GC/MS Semi VO A Method 8270C: The laboratory control sample and the laboratory control sample duplicate (LCS/LCSD) for batch #110629 exceeded control limits for the following analyte(s): Benzoic acid. Benzoic acid has been identified as a poor performing analyte when analyzed using this method; therefore, re-extraction/re-analysis was not performed. Batch precision also exceeded control limits for these analyte(s). These results have been reported and qualified. No other analytical or quality issues were noted. HPLC Method 7199: The matrix sample has been determined to be reductive in nature No other analytical or quality issues were noted. GC Semi VO A No analytical or quality issues were noted. Metals Method 6010B: The leachate blank for stlc rotation batch 110434 contained Ba above the reporting limit (RL). The associated sample(s) contained detects for this analyte at concentrations greater than 10X the value found in the method blank; therefore, re-extraction and/or re-analysis of samples was not performed. No other analytical or quality issues were noted. General Chemistry No analytical or quality issues were noted. Organic Prep No analytical or quality issues were noted. TestAmerica San Francisco Page 4 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Detection Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Client Sample ID: SP-1 (1')Lab Sample ID: 720-4 1168-1 4,4'-DDT 2.7 RL 2.0 ug/Kg 8081A 1 MDL Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA 4,4'-DDE 8081A 4.7 2.0 ug/Kg 1 Total/NA Barium 6010B 110 1.9 mg/Kg 4 Total/NA Chromium 6010B 57 1.9 mg/Kg 4 Total/NA Cobalt 6010B 14 0.77 mg/Kg 4 Total/NA Copper 6010B 34 5.8 mg/Kg 4 Total/NA Lead 6010B 6.1 1.9 mg/Kg 4 Total/NA Nickel 6010B 45 1.9 mg/Kg 4 Total/NA Vanadium 6010B 70 1.9 mg/Kg 4 Total/NA Zinc 6010B 50 5.8 mg/Kg 4 Total/NA Barium 6010B 6.7 B 0.13 mg/L 2.5 STLC Citrate Cobalt 6010B 0.45 0.050 mg/L 2.5 STLC Citrate Nickel 6010B 0.31 0.25 mg/L 2.5 STLC Citrate Vanadium 6010B 0.49 0.25 mg/L 2.5 STLC Citrate Mercury 7471A 0.17 0.0097 mg/Kg 1 Total/NA TestAmerica San Francisco Page 5 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1168-1 Client Sample ID: SP-1 (1') Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS RL MDL Methyl tert-butyl ether ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 39 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Acetone ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Benzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Dichlorobromomethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Bromobenzene ND 16 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chlorobromomethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Bromoform ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Bromomethane ND 39 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 2-Butanone (MEK)ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 n-Butylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 sec-Butylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 tert-Butylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Carbon disulfide ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Carbon tetrachloride ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chlorobenzene ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chloroform ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chloromethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 2-Chlorotoluene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 4-Chlorotoluene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Chlorodibromomethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2-Dichlorobenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,3-Dichlorobenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,4-Dichlorobenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,3-Dichloropropane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1-Dichloropropene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2-Dibromo-3-Chloropropane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Ethylene Dibromide ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Dibromomethane ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Dichlorodifluoromethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1-Dichloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2-Dichloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1-Dichloroethene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 cis-1,2-Dichloroethene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 trans-1,2-Dichloroethene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2-Dichloropropane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 cis-1,3-Dichloropropene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 trans-1,3-Dichloropropene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Ethylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Hexachlorobutadiene ND 39 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 2-Hexanone ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Isopropylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 4-Isopropyltoluene ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Methylene Chloride ND 39 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 4-Methyl-2-pentanone (MIBK)ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Naphthalene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 N-Propylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Styrene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1,1,2-Tetrachloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1,2,2-Tetrachloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Tetrachloroethene ND TestAmerica San Francisco Page 6 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1168-1 Client Sample ID: SP-1 (1') Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) RL MDL Toluene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2,3-Trichlorobenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2,4-Trichlorobenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1,1-Trichloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1,2-Trichloroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Trichloroethene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Trichlorofluoromethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2,3-Trichloropropane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,2,4-Trimethylbenzene ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 1,3,5-Trimethylbenzene ND 39 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Vinyl acetate ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Vinyl chloride ND 7.8 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Xylenes, Total ND 3.9 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 2,2-Dichloropropane ND 190 ug/Kg 03/27/12 09:15 03/27/12 11:44 1 Gasoline Range Organics (GRO) -C5-C12 ND 4-Bromofluorobenzene 93 45 -131 03/27/12 09:15 03/27/12 11:44 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery 1,2-Dichloroethane-d4 (Surr)98 03/27/12 09:15 03/27/12 11:44 1 60 -140 Toluene-d8 (Surr)96 03/27/12 09:15 03/27/12 11:44 1 58 -140 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) RL MDL Phenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Bis(2-chloroethyl)ether ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Chlorophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 1,3-Dichlorobenzene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 1,4-Dichlorobenzene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzyl alcohol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 1,2-Dichlorobenzene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Methylphenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Methylphenol, 3 & 4 ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 N-Nitrosodi-n-propylamine ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Hexachloroethane ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Nitrobenzene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Isophorone ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Nitrophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4-Dimethylphenol ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Bis(2-chloroethoxy)methane ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4-Dichlorophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 1,2,4-Trichlorobenzene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Naphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Chloroaniline ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Hexachlorobutadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Chloro-3-methylphenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Methylnaphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Hexachlorocyclopentadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4,6-Trichlorophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4,5-Trichlorophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Chloronaphthalene ND TestAmerica San Francisco Page 7 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1168-1 Client Sample ID: SP-1 (1') Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) RL MDL 2-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Dimethyl phthalate ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Acenaphthylene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 3-Nitroaniline ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Acenaphthene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4-Dinitrophenol ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Nitrophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Dibenzofuran ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,4-Dinitrotoluene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2,6-Dinitrotoluene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Diethyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Chlorophenyl phenyl ether ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Fluorene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 2-Methyl-4,6-dinitrophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 N-Nitrosodiphenylamine ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 4-Bromophenyl phenyl ether ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Hexachlorobenzene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Pentachlorophenol ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Phenanthrene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Anthracene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Di-n-butyl phthalate ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Fluoranthene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Pyrene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Butyl benzyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 3,3'-Dichlorobenzidine ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzo[a]anthracene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Bis(2-ethylhexyl) phthalate ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Chrysene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Di-n-octyl phthalate ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzo[b]fluoranthene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzo[a]pyrene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzo[k]fluoranthene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Indeno[1,2,3-cd]pyrene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzo[g,h,i]perylene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Benzoic acid ND * 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Azobenzene ND 0.067 mg/Kg 03/29/12 07:18 03/29/12 19:09 1 Dibenz(a,h)anthracene ND Nitrobenzene-d5 76 21 -98 03/29/12 07:18 03/29/12 19:09 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery 2-Fluorobiphenyl 84 03/29/12 07:18 03/29/12 19:09 1 30 -112 Terphenyl-d14 80 03/29/12 07:18 03/29/12 19:09 1 32 -117 2-Fluorophenol 71 03/29/12 07:18 03/29/12 19:09 1 28 -98 Phenol-d5 77 03/29/12 07:18 03/29/12 19:09 1 23 -101 2,4,6-Tribromophenol 90 03/29/12 07:18 03/29/12 19:09 1 37 -114 Method: 8015B - Diesel Range Organics (DRO) (GC) - Silica Gel Cleanup RL MDL Diesel Range Organics [C10-C28]ND 1.0 mg/Kg 03/27/12 13:07 03/28/12 22:32 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 50 mg/Kg 03/27/12 13:07 03/28/12 22:32 1 Motor Oil Range Organics [C24-C36]ND TestAmerica San Francisco Page 8 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1168-1 Client Sample ID: SP-1 (1') Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Capric Acid (Surr)0.04 0 -1 03/27/12 13:07 03/28/12 22:32 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery p-Terphenyl 72 03/27/12 13:07 03/28/12 22:32 1 38 -148 Method: 8081 A - Organochlorine Pesticides (GC) RL MDL Aldrin ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Dieldrin ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endrin aldehyde ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endrin ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endrin ketone ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Heptachlor ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Heptachlor epoxide ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 4,4'-DDT 2.7 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 4,4'-DDE 4.7 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 4,4'-DDD ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endosulfan I ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endosulfan II ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 alpha-BHC ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 beta-BHC ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 gamma-BHC (Lindane)ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 delta-BHC ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Endosulfan sulfate ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Methoxychlor ND 40 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Toxaphene ND 40 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 Chlordane (technical)ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 alpha-Chlordane ND 2.0 ug/Kg 03/28/12 13:17 03/29/12 19:57 1 gamma-Chlordane ND Tetrachloro-m-xylene 59 34 -110 03/28/12 13:17 03/29/12 19:57 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery DCB Decachlorobiphenyl 68 03/28/12 13:17 03/29/12 19:57 1 21 -136 Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography RL MDL PCB-1016 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1221 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1232 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1242 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1248 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1254 ND 50 ug/Kg 03/27/12 13:17 03/28/12 22:46 1 PCB-1260 ND Tetrachloro-m-xylene 83 32 -112 03/27/12 13:17 03/28/12 22:46 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery DCB Decachlorobiphenyl 86 03/27/12 13:17 03/28/12 22:46 1 2 -122 Method: 7199 - Chromium, Hexavalent (IC) RL MDL Cr (VI)ND 2.0 mg/Kg 03/28/12 16:04 03/28/12 20:36 10 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier Method: 6010B - Metals (ICP) RL MDL Antimony ND 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier TestAmerica San Francisco Page 9 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1168-1 Client Sample ID: SP-1 (1') Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Method: 6010B - Metals (ICP) (Continued) RL MDL Arsenic ND 3.8 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Barium 110 0.38 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Beryllium ND 0.48 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Cadmium ND 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Chromium 57 0.77 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Cobalt 14 5.8 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Copper 34 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Lead 6.1 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Molybdenum ND 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Nickel 45 3.8 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Selenium ND 0.96 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Silver ND 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Thallium ND 1.9 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Vanadium 70 5.8 mg/Kg 03/26/12 19:50 03/27/12 18:31 4 Zinc 50 Method: 6010B - Metals (ICP) - STLC Citrate RL MDL Antimony ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Arsenic ND 0.13 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Barium 6.7 B 0.050 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Beryllium ND 0.050 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Cadmium ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Chromium ND 0.050 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Cobalt 0.45 0.50 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Copper ND 0.13 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Lead ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Molybdenum ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Nickel 0.31 0.50 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Selenium ND 0.13 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Silver ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Thallium ND 0.25 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Vanadium 0.49 0.50 mg/L 03/29/12 10:25 03/29/12 21:19 2.5 Zinc ND Method: 7471 A - Mercury (CVAA) RL MDL Mercury 0.17 0.0097 mg/Kg 03/28/12 18:52 03/29/12 21:02 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier TestAmerica San Francisco Page 10 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS Client Sample ID: Method Blank Lab Sample ID: MB 720-110482/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 RL MDL Methyl tert-butyl ether ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 50 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Acetone ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Benzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Dichlorobromomethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Bromobenzene ND 20 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chlorobromomethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Bromoform ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Bromomethane ND 50 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 2-Butanone (MEK) ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 n-Butylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 sec-Butylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 tert-Butylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Carbon disulfide ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Carbon tetrachloride ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chlorobenzene ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chloroform ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chloromethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 2-Chlorotoluene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 4-Chlorotoluene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Chlorodibromomethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2-Dichlorobenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,3-Dichlorobenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,4-Dichlorobenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,3-Dichloropropane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1-Dichloropropene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2-Dibromo-3-Chloropropane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Ethylene Dibromide ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Dibromomethane ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Dichlorodifluoromethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1-Dichloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2-Dichloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1-Dichloroethene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 cis-1,2-Dichloroethene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 trans-1,2-Dichloroethene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2-Dichloropropane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 cis-1,3-Dichloropropene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 trans-1,3-Dichloropropene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Ethylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Hexachlorobutadiene ND 50 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 2-Hexanone ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Isopropylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 4-Isopropyltoluene ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Methylene Chloride ND 50 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 4-Methyl-2-pentanone (MIBK) ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Naphthalene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 N-Propylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Styrene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1,1,2-Tetrachloroethane TestAmerica San Francisco Page 11 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110482/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 RL MDL 1,1,2,2-Tetrachloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Tetrachloroethene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Toluene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2,3-Trichlorobenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2,4-Trichlorobenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1,1-Trichloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1,2-Trichloroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Trichloroethene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Trichlorofluoromethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2,3-Trichloropropane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,2,4-Trimethylbenzene ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 1,3,5-Trimethylbenzene ND 50 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Vinyl acetate ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Vinyl chloride ND 10 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Xylenes, Total ND 5.0 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 2,2-Dichloropropane ND 250 ug/Kg 03/27/12 08:00 03/27/12 09:09 1 Gasoline Range Organics (GRO) -C5-C12 4-Bromofluorobenzene 91 45 -131 03/27/12 09:09 1 MB MB Surrogate 03/27/12 08:00 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 93 03/27/12 08:00 03/27/12 09:09 1 1,2-Dichloroethane-d4 (Surr)60 -140 94 03/27/12 08:00 03/27/12 09:09 1 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110482/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Methyl tert-butyl ether 50.0 45.6 ug/Kg 91 70 -144 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Acetone 250 155 ug/Kg 62 30 -162 Benzene 50.0 46.0 ug/Kg 92 70 -130 Dichlorobromomethane 50.0 45.6 ug/Kg 91 70 -131 Bromobenzene 50.0 46.4 ug/Kg 93 70 -130 Chlorobromomethane 50.0 50.4 ug/Kg 101 70 -130 Bromoform 50.0 49.0 ug/Kg 98 59 -158 Bromomethane 50.0 38.2 ug/Kg 76 59 -132 2-Butanone (MEK)250 201 ug/Kg 81 60 -150 n-Butylbenzene 50.0 49.0 ug/Kg 98 70 -142 sec-Butylbenzene 50.0 47.6 ug/Kg 95 70 -136 tert-Butylbenzene 50.0 47.2 ug/Kg 94 70 -130 Carbon disulfide 50.0 45.6 ug/Kg 91 60 -140 Carbon tetrachloride 50.0 46.6 ug/Kg 93 70 -138 Chlorobenzene 50.0 45.8 ug/Kg 92 70 -130 Chloroethane 50.0 40.8 ug/Kg 82 65 -130 Chloroform 50.0 44.8 ug/Kg 90 77 -127 Chloromethane 50.0 38.4 ug/Kg 77 55 -140 2-Chlorotoluene 50.0 46.4 ug/Kg 93 70 -138 4-Chlorotoluene 50.0 45.4 ug/Kg 91 70 -136 TestAmerica San Francisco Page 12 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110482/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Chlorodibromomethane 50.0 46.4 ug/Kg 93 70 -146 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 1,2-Dichlorobenzene 50.0 46.6 ug/Kg 93 70 -130 1,3-Dichlorobenzene 50.0 46.6 ug/Kg 93 70 -131 1,4-Dichlorobenzene 50.0 47.2 ug/Kg 94 70 -130 1,3-Dichloropropane 50.0 47.8 ug/Kg 96 70 -140 1,1-Dichloropropene 50.0 47.4 ug/Kg 95 70 -130 1,2-Dibromo-3-Chloropropane 50.0 48.4 ug/Kg 97 60 -145 Ethylene Dibromide 50.0 49.6 ug/Kg 99 70 -140 Dibromomethane 50.0 48.2 ug/Kg 96 70 -139 Dichlorodifluoromethane 50.0 31.8 ug/Kg 64 37 -158 1,1-Dichloroethane 50.0 45.8 ug/Kg 92 70 -130 1,2-Dichloroethane 50.0 44.0 ug/Kg 88 70 -130 1,1-Dichloroethene 50.0 44.4 ug/Kg 89 76 -122 cis-1,2-Dichloroethene 50.0 52.0 ug/Kg 104 70 -138 trans-1,2-Dichloroethene 50.0 39.2 ug/Kg 78 67 -130 1,2-Dichloropropane 50.0 46.2 ug/Kg 92 73 -127 cis-1,3-Dichloropropene 50.0 47.0 ug/Kg 94 68 -147 trans-1,3-Dichloropropene 50.0 48.6 ug/Kg 97 70 -136 Ethylbenzene 50.0 45.8 ug/Kg 92 80 -137 Hexachlorobutadiene 50.0 52.6 ug/Kg 105 70 -132 2-Hexanone 250 213 ug/Kg 85 60 -161 Isopropylbenzene 50.0 48.2 ug/Kg 96 88 -128 4-Isopropyltoluene 50.0 50.6 ug/Kg 101 70 -133 Methylene Chloride 50.0 45.2 ug/Kg 90 70 -134 4-Methyl-2-pentanone (MIBK)250 240 ug/Kg 96 60 -160 Naphthalene 50.0 51.4 ug/Kg 103 60 -147 N-Propylbenzene 50.0 45.4 ug/Kg 91 70 -130 Styrene 50.0 48.2 ug/Kg 96 70 -130 1,1,1,2-Tetrachloroethane 50.0 46.0 ug/Kg 92 70 -130 1,1,2,2-Tetrachloroethane 50.0 47.0 ug/Kg 94 70 -146 Tetrachloroethene 50.0 47.6 ug/Kg 95 70 -132 Toluene 50.0 46.0 ug/Kg 92 80 -128 1,2,3-Trichlorobenzene 50.0 48.4 ug/Kg 97 60 -140 1,2,4-Trichlorobenzene 50.0 51.0 ug/Kg 102 60 -140 1,1,1-Trichloroethane 50.0 47.4 ug/Kg 95 70 -130 1,1,2-Trichloroethane 50.0 47.8 ug/Kg 96 70 -130 Trichloroethene 50.0 47.6 ug/Kg 95 70 -133 Trichlorofluoromethane 50.0 39.4 ug/Kg 79 60 -140 1,2,3-Trichloropropane 50.0 48.8 ug/Kg 98 70 -146 1,1,2-Trichloro -1,2,2-trifluoroetha ne 50.0 53.0 ug/Kg 106 60 -140 1,2,4-Trimethylbenzene 50.0 46.0 ug/Kg 92 70 -130 1,3,5-Trimethylbenzene 50.0 46.4 ug/Kg 93 70 -131 Vinyl acetate 50.0 67.4 ug/Kg 135 38 -176 Vinyl chloride 50.0 38.8 ug/Kg 78 58 -125 m-Xylene & p-Xylene 100 93.6 ug/Kg 94 70 -146 o-Xylene 50.0 47.0 ug/Kg 94 70 -140 2,2-Dichloropropane 50.0 51.4 ug/Kg 103 70 -162 TestAmerica San Francisco Page 13 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110482/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 4-Bromofluorobenzene 45 -131 Surrogate 95 LCS LCS Qualifier Limits %Recovery 89 1,2-Dichloroethane-d4 (Surr)60 -140 96 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110482/4-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Gasoline Range Organics (GRO) -C5-C12 1000 897 ug/Kg 90 61 -128 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene 45 -131 Surrogate 94 LCS LCS Qualifier Limits %Recovery 91 1,2-Dichloroethane-d4 (Surr)60 -140 96 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110482/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Methyl tert-butyl ether 50.0 48.8 ug/Kg 98 70 -144 7 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Acetone 250 181 ug/Kg 72 30 -162 15 30 Benzene 50.0 47.0 ug/Kg 94 70 -130 2 20 Dichlorobromomethane 50.0 47.8 ug/Kg 96 70 -131 5 20 Bromobenzene 50.0 47.0 ug/Kg 94 70 -130 1 20 Chlorobromomethane 50.0 51.8 ug/Kg 104 70 -130 3 20 Bromoform 50.0 51.2 ug/Kg 102 59 -158 4 20 Bromomethane 50.0 38.8 ug/Kg 78 59 -132 2 20 2-Butanone (MEK)250 223 ug/Kg 89 60 -150 10 20 n-Butylbenzene 50.0 49.4 ug/Kg 99 70 -142 1 20 sec-Butylbenzene 50.0 47.4 ug/Kg 95 70 -136 0 20 tert-Butylbenzene 50.0 47.2 ug/Kg 94 70 -130 0 20 Carbon disulfide 50.0 45.4 ug/Kg 91 60 -140 0 20 Carbon tetrachloride 50.0 46.2 ug/Kg 92 70 -138 1 20 Chlorobenzene 50.0 45.8 ug/Kg 92 70 -130 0 20 Chloroethane 50.0 41.2 ug/Kg 82 65 -130 1 20 Chloroform 50.0 45.4 ug/Kg 91 77 -127 1 20 Chloromethane 50.0 39.0 ug/Kg 78 55 -140 2 20 2-Chlorotoluene 50.0 46.2 ug/Kg 92 70 -138 0 20 4-Chlorotoluene 50.0 45.4 ug/Kg 91 70 -136 0 20 Chlorodibromomethane 50.0 48.6 ug/Kg 97 70 -146 5 20 1,2-Dichlorobenzene 50.0 47.6 ug/Kg 95 70 -130 2 20 1,3-Dichlorobenzene 50.0 47.4 ug/Kg 95 70 -131 2 20 1,4-Dichlorobenzene 50.0 47.0 ug/Kg 94 70 -130 0 20 1,3-Dichloropropane 50.0 49.0 ug/Kg 98 70 -140 2 20 1,1-Dichloropropene 50.0 47.6 ug/Kg 95 70 -130 0 20 1,2-Dibromo-3-Chloropropane 50.0 54.4 ug/Kg 109 60 -145 12 20 TestAmerica San Francisco Page 14 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110482/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Ethylene Dibromide 50.0 52.2 ug/Kg 104 70 -140 5 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Dibromomethane 50.0 50.4 ug/Kg 101 70 -139 4 20 Dichlorodifluoromethane 50.0 32.0 ug/Kg 64 37 -158 1 20 1,1-Dichloroethane 50.0 46.8 ug/Kg 94 70 -130 2 20 1,2-Dichloroethane 50.0 45.4 ug/Kg 91 70 -130 3 20 1,1-Dichloroethene 50.0 44.8 ug/Kg 90 76 -122 1 20 cis-1,2-Dichloroethene 50.0 53.2 ug/Kg 106 70 -138 2 20 trans-1,2-Dichloroethene 50.0 39.2 ug/Kg 78 67 -130 0 20 1,2-Dichloropropane 50.0 47.0 ug/Kg 94 73 -127 2 20 cis-1,3-Dichloropropene 50.0 48.6 ug/Kg 97 68 -147 3 20 trans-1,3-Dichloropropene 50.0 51.0 ug/Kg 102 70 -136 5 20 Ethylbenzene 50.0 45.6 ug/Kg 91 80 -137 0 20 Hexachlorobutadiene 50.0 53.2 ug/Kg 106 70 -132 1 20 2-Hexanone 250 234 ug/Kg 94 60 -161 9 20 Isopropylbenzene 50.0 48.2 ug/Kg 96 88 -128 0 20 4-Isopropyltoluene 50.0 50.8 ug/Kg 102 70 -133 0 20 Methylene Chloride 50.0 47.2 ug/Kg 94 70 -134 4 20 4-Methyl-2-pentanone (MIBK)250 260 ug/Kg 104 60 -160 8 20 Naphthalene 50.0 55.0 ug/Kg 110 60 -147 7 20 N-Propylbenzene 50.0 45.2 ug/Kg 90 70 -130 0 20 Styrene 50.0 48.4 ug/Kg 97 70 -130 0 20 1,1,1,2-Tetrachloroethane 50.0 46.4 ug/Kg 93 70 -130 1 20 1,1,2,2-Tetrachloroethane 50.0 50.0 ug/Kg 100 70 -146 6 20 Tetrachloroethene 50.0 48.0 ug/Kg 96 70 -132 1 20 Toluene 50.0 45.8 ug/Kg 92 80 -128 0 20 1,2,3-Trichlorobenzene 50.0 50.6 ug/Kg 101 60 -140 4 20 1,2,4-Trichlorobenzene 50.0 51.6 ug/Kg 103 60 -140 1 20 1,1,1-Trichloroethane 50.0 47.4 ug/Kg 95 70 -130 0 20 1,1,2-Trichloroethane 50.0 50.6 ug/Kg 101 70 -130 6 20 Trichloroethene 50.0 48.0 ug/Kg 96 70 -133 1 20 Trichlorofluoromethane 50.0 39.8 ug/Kg 80 60 -140 1 20 1,2,3-Trichloropropane 50.0 51.4 ug/Kg 103 70 -146 5 20 1,1,2-Trichloro -1,2,2-trifluoroetha ne 50.0 52.8 ug/Kg 106 60 -140 0 20 1,2,4-Trimethylbenzene 50.0 46.2 ug/Kg 92 70 -130 0 20 1,3,5-Trimethylbenzene 50.0 46.6 ug/Kg 93 70 -131 0 20 Vinyl acetate 50.0 72.4 ug/Kg 145 38 -176 7 20 Vinyl chloride 50.0 39.6 ug/Kg 79 58 -125 2 20 m-Xylene & p-Xylene 100 93.2 ug/Kg 93 70 -146 0 20 o-Xylene 50.0 47.0 ug/Kg 94 70 -140 0 20 2,2-Dichloropropane 50.0 52.0 ug/Kg 104 70 -162 1 20 4-Bromofluorobenzene 45 -131 Surrogate 97 LCSD LCSD Qualifier Limits %Recovery 92 1,2-Dichloroethane-d4 (Surr)60 -140 96 Toluene-d8 (Surr)58 -140 TestAmerica San Francisco Page 15 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110482/5-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110463 Prep Batch: 110482 Gasoline Range Organics (GRO) -C5-C12 1000 921 ug/Kg 92 61 -128 3 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit 4-Bromofluorobenzene 45 -131 Surrogate 94 LCSD LCSD Qualifier Limits %Recovery 93 1,2-Dichloroethane-d4 (Surr)60 -140 97 Toluene-d8 (Surr)58 -140 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) Client Sample ID: Method Blank Lab Sample ID: MB 720-110629/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 RL MDL Phenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-chloroethyl)ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Chlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,3-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,4-Dichlorobenzene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzyl alcohol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,2-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Methylphenol, 3 & 4 ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 N-Nitrosodi-n-propylamine ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachloroethane ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Nitrobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Isophorone ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Nitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dimethylphenol ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-chloroethoxy)methane ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,2,4-Trichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Naphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chloroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorobutadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chloro-3-methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methylnaphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorocyclopentadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4,6-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4,5-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Chloronaphthalene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Nitroaniline ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Dimethyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Acenaphthylene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 3-Nitroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Acenaphthene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dinitrophenol ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Nitrophenol TestAmerica San Francisco Page 16 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110629/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 RL MDL Dibenzofuran ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dinitrotoluene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,6-Dinitrotoluene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Diethyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chlorophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Fluorene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methyl-4,6-dinitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 N-Nitrosodiphenylamine ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Bromophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorobenzene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Pentachlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Phenanthrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Anthracene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Di-n-butyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Pyrene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Butyl benzyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 3,3'-Dichlorobenzidine ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[a]anthracene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-ethylhexyl) phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Chrysene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Di-n-octyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[b]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[a]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[k]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Indeno[1,2,3-cd]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[g,h,i]perylene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzoic acid ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Azobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Dibenz(a,h)anthracene Nitrobenzene-d5 76 21 -98 03/29/12 18:46 1 MB MB Surrogate 03/29/12 07:18 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 83 03/29/12 07:18 03/29/12 18:46 1 2-Fluorobiphenyl 30 -112 80 03/29/12 07:18 03/29/12 18:46 1 Terphenyl-d14 32 -117 73 03/29/12 07:18 03/29/12 18:46 1 2-Fluorophenol 28 -98 76 03/29/12 07:18 03/29/12 18:46 1 Phenol-d5 23 -101 82 03/29/12 07:18 03/29/12 18:46 1 2,4,6-Tribromophenol 37 -114 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Phenol 1.64 1.34 mg/Kg 82 48 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Bis(2-chloroethyl)ether 1.64 1.49 mg/Kg 90 45 -115 2-Chlorophenol 1.64 1.28 mg/Kg 78 48 -115 TestAmerica San Francisco Page 17 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 1,3-Dichlorobenzene 1.64 1.24 mg/Kg 76 41 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 1,4-Dichlorobenzene 1.64 1.18 mg/Kg 72 40 -115 Benzyl alcohol 1.64 1.27 mg/Kg 77 54 -115 1,2-Dichlorobenzene 1.64 1.23 mg/Kg 75 44 -115 2-Methylphenol 1.64 1.30 mg/Kg 79 54 -115 Methylphenol, 3 & 4 3.29 2.11 mg/Kg 64 42 -115 N-Nitrosodi-n-propylamine 1.64 1.23 mg/Kg 75 46 -115 Hexachloroethane 1.64 1.19 mg/Kg 73 44 -115 Nitrobenzene 1.64 1.29 mg/Kg 79 48 -115 Isophorone 1.64 1.27 mg/Kg 77 54 -115 2-Nitrophenol 1.64 1.40 mg/Kg 85 48 -115 2,4-Dimethylphenol 1.64 1.28 mg/Kg 78 52 -115 Bis(2-chloroethoxy)methane 1.64 1.28 mg/Kg 78 46 -115 2,4-Dichlorophenol 1.64 1.37 mg/Kg 83 49 -100 1,2,4-Trichlorobenzene 1.64 1.29 mg/Kg 79 47 -115 Naphthalene 1.64 1.27 mg/Kg 77 44 -115 4-Chloroaniline 1.64 1.02 mg/Kg 62 30 -115 Hexachlorobutadiene 1.64 1.31 mg/Kg 80 44 -115 4-Chloro-3-methylphenol 1.64 1.45 mg/Kg 88 58 -115 2-Methylnaphthalene 1.64 1.29 mg/Kg 78 49 -115 Hexachlorocyclopentadiene 1.64 1.48 mg/Kg 90 42 -132 2,4,6-Trichlorophenol 1.64 1.40 mg/Kg 85 45 -115 2,4,5-Trichlorophenol 1.64 1.42 mg/Kg 86 48 -115 2-Chloronaphthalene 1.64 1.34 mg/Kg 82 52 -115 2-Nitroaniline 1.64 1.60 mg/Kg 97 54 -115 Dimethyl phthalate 1.64 1.45 mg/Kg 88 64 -119 Acenaphthylene 1.64 1.45 mg/Kg 88 61 -129 3-Nitroaniline 1.64 1.23 mg/Kg 75 50 -115 Acenaphthene 1.64 1.35 mg/Kg 82 50 -115 2,4-Dinitrophenol 1.64 0.753 mg/Kg 46 21 -115 4-Nitrophenol 1.64 1.67 mg/Kg 101 54 -125 Dibenzofuran 1.64 1.39 mg/Kg 85 55 -115 2,4-Dinitrotoluene 1.64 1.67 mg/Kg 101 57 -115 2,6-Dinitrotoluene 1.64 1.57 mg/Kg 96 54 -119 Diethyl phthalate 1.64 1.54 mg/Kg 93 49 -117 4-Chlorophenyl phenyl ether 1.64 1.44 mg/Kg 88 57 -115 Fluorene 1.64 1.39 mg/Kg 85 54 -115 4-Nitroaniline 1.64 1.54 mg/Kg 94 59 -115 2-Methyl-4,6-dinitrophenol 1.64 1.53 mg/Kg 93 48 -115 N-Nitrosodiphenylamine 1.64 1.45 mg/Kg 88 56 -115 4-Bromophenyl phenyl ether 1.64 1.48 mg/Kg 90 53 -115 Hexachlorobenzene 1.64 1.52 mg/Kg 92 55 -115 Pentachlorophenol 1.64 1.45 mg/Kg 88 35 -115 Phenanthrene 1.64 1.46 mg/Kg 89 54 -115 Anthracene 1.64 1.50 mg/Kg 91 55 -115 Di-n-butyl phthalate 1.64 1.47 mg/Kg 90 55 -115 Fluoranthene 1.64 1.58 mg/Kg 96 54 -115 Pyrene 1.64 1.43 mg/Kg 87 48 -115 TestAmerica San Francisco Page 18 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Butyl benzyl phthalate 1.64 1.55 mg/Kg 94 53 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 3,3'-Dichlorobenzidine 1.64 1.19 mg/Kg 73 42 -115 Benzo[a]anthracene 1.64 1.58 mg/Kg 96 55 -115 Bis(2-ethylhexyl) phthalate 1.64 1.50 mg/Kg 91 53 -115 Chrysene 1.64 1.51 mg/Kg 92 58 -115 Di-n-octyl phthalate 1.64 1.68 mg/Kg 102 53 -115 Benzo[b]fluoranthene 1.64 1.55 mg/Kg 94 56 -115 Benzo[a]pyrene 1.64 1.47 mg/Kg 90 55 -115 Benzo[k]fluoranthene 1.64 1.44 mg/Kg 88 57 -115 Indeno[1,2,3-cd]pyrene 1.64 1.57 mg/Kg 96 56 -115 Benzo[g,h,i]perylene 1.64 1.61 mg/Kg 98 56 -115 Benzoic acid 1.64 0.753 mg/Kg 46 10 -115 Azobenzene 1.64 1.37 mg/Kg 83 52 -115 Dibenz(a,h)anthracene 1.64 1.58 mg/Kg 96 58 -115 Nitrobenzene-d5 21 -98 Surrogate 79 LCS LCS Qualifier Limits %Recovery 80 2-Fluorobiphenyl 30 -112 92 Terphenyl-d14 32 -117 78 2-Fluorophenol 28 -98 80 Phenol-d5 23 -101 95 2,4,6-Tribromophenol 37 -114 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Phenol 1.67 1.34 mg/Kg 80 48 -115 0 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Bis(2-chloroethyl)ether 1.67 1.43 mg/Kg 86 45 -115 4 35 2-Chlorophenol 1.67 1.27 mg/Kg 76 48 -115 1 35 1,3-Dichlorobenzene 1.67 1.17 mg/Kg 70 41 -115 6 35 1,4-Dichlorobenzene 1.67 1.21 mg/Kg 73 40 -115 2 35 Benzyl alcohol 1.67 1.27 mg/Kg 76 54 -115 0 35 1,2-Dichlorobenzene 1.67 1.21 mg/Kg 73 44 -115 2 35 2-Methylphenol 1.67 1.32 mg/Kg 79 54 -115 1 35 Methylphenol, 3 & 4 3.33 2.14 mg/Kg 64 42 -115 2 35 N-Nitrosodi-n-propylamine 1.67 1.23 mg/Kg 74 46 -115 1 35 Hexachloroethane 1.67 1.17 mg/Kg 70 44 -115 2 35 Nitrobenzene 1.67 1.27 mg/Kg 76 48 -115 2 35 Isophorone 1.67 1.29 mg/Kg 77 54 -115 2 35 2-Nitrophenol 1.67 1.40 mg/Kg 84 48 -115 0 35 2,4-Dimethylphenol 1.67 1.29 mg/Kg 77 52 -115 1 35 Bis(2-chloroethoxy)methane 1.67 1.28 mg/Kg 77 46 -115 0 35 2,4-Dichlorophenol 1.67 1.40 mg/Kg 84 49 -100 2 35 1,2,4-Trichlorobenzene 1.67 1.29 mg/Kg 77 47 -115 1 35 Naphthalene 1.67 1.26 mg/Kg 76 44 -115 1 35 4-Chloroaniline 1.67 1.03 mg/Kg 62 30 -115 1 35 TestAmerica San Francisco Page 19 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Hexachlorobutadiene 1.67 1.29 mg/Kg 77 44 -115 2 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit 4-Chloro-3-methylphenol 1.67 1.49 mg/Kg 89 58 -115 3 35 2-Methylnaphthalene 1.67 1.30 mg/Kg 78 49 -115 1 35 Hexachlorocyclopentadiene 1.67 1.49 mg/Kg 89 42 -132 0 35 2,4,6-Trichlorophenol 1.67 1.41 mg/Kg 85 45 -115 1 35 2,4,5-Trichlorophenol 1.67 1.45 mg/Kg 87 48 -115 2 35 2-Chloronaphthalene 1.67 1.39 mg/Kg 83 52 -115 3 35 2-Nitroaniline 1.67 1.62 mg/Kg 97 54 -115 1 35 Dimethyl phthalate 1.67 1.49 mg/Kg 90 64 -119 3 35 Acenaphthylene 1.67 1.49 mg/Kg 89 61 -129 2 35 3-Nitroaniline 1.67 1.24 mg/Kg 75 50 -115 1 35 Acenaphthene 1.67 1.39 mg/Kg 83 50 -115 3 35 2,4-Dinitrophenol 1.67 0.553 mg/Kg 33 21 -115 31 35 4-Nitrophenol 1.67 1.70 mg/Kg 102 54 -125 2 35 Dibenzofuran 1.67 1.42 mg/Kg 85 55 -115 2 35 2,4-Dinitrotoluene 1.67 1.68 mg/Kg 101 57 -115 1 35 2,6-Dinitrotoluene 1.67 1.60 mg/Kg 96 54 -119 2 35 Diethyl phthalate 1.67 1.58 mg/Kg 95 49 -117 3 35 4-Chlorophenyl phenyl ether 1.67 1.47 mg/Kg 88 57 -115 2 35 Fluorene 1.67 1.44 mg/Kg 86 54 -115 3 35 4-Nitroaniline 1.67 1.57 mg/Kg 94 59 -115 2 35 2-Methyl-4,6-dinitrophenol 1.67 1.42 mg/Kg 85 48 -115 7 35 N-Nitrosodiphenylamine 1.67 1.47 mg/Kg 88 56 -115 1 35 4-Bromophenyl phenyl ether 1.67 1.49 mg/Kg 90 53 -115 1 35 Hexachlorobenzene 1.67 1.53 mg/Kg 92 55 -115 1 35 Pentachlorophenol 1.67 1.41 mg/Kg 85 35 -115 3 35 Phenanthrene 1.67 1.43 mg/Kg 86 54 -115 2 35 Anthracene 1.67 1.55 mg/Kg 93 55 -115 3 35 Di-n-butyl phthalate 1.67 1.47 mg/Kg 88 55 -115 1 35 Fluoranthene 1.67 1.59 mg/Kg 96 54 -115 1 35 Pyrene 1.67 1.48 mg/Kg 89 48 -115 3 35 Butyl benzyl phthalate 1.67 1.60 mg/Kg 96 53 -115 3 35 3,3'-Dichlorobenzidine 1.67 1.22 mg/Kg 73 42 -115 2 35 Benzo[a]anthracene 1.67 1.60 mg/Kg 96 55 -115 1 35 Bis(2-ethylhexyl) phthalate 1.67 1.52 mg/Kg 91 53 -115 1 35 Chrysene 1.67 1.57 mg/Kg 94 58 -115 4 35 Di-n-octyl phthalate 1.67 1.71 mg/Kg 103 53 -115 2 35 Benzo[b]fluoranthene 1.67 1.47 mg/Kg 88 56 -115 6 35 Benzo[a]pyrene 1.67 1.51 mg/Kg 91 55 -115 2 35 Benzo[k]fluoranthene 1.67 1.64 mg/Kg 99 57 -115 13 35 Indeno[1,2,3-cd]pyrene 1.67 1.62 mg/Kg 97 56 -115 3 35 Benzo[g,h,i]perylene 1.67 1.66 mg/Kg 100 56 -115 3 35 Benzoic acid 1.67 0.516 *mg/Kg 31 10 -115 37 35 Azobenzene 1.67 1.37 mg/Kg 82 52 -115 0 35 Dibenz(a,h)anthracene 1.67 1.64 mg/Kg 98 58 -115 3 35 Nitrobenzene-d5 21 -98 Surrogate 78 LCSD LCSD Qualifier Limits %Recovery TestAmerica San Francisco Page 20 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 2-Fluorobiphenyl 30 -112 Surrogate 81 LCSD LCSD Qualifier Limits %Recovery 93 Terphenyl-d14 32 -117 75 2-Fluorophenol 28 -98 78 Phenol-d5 23 -101 95 2,4,6-Tribromophenol 37 -114 Method: 8015B - Diesel Range Organics (DRO) (GC) Client Sample ID: Method Blank Lab Sample ID: MB 720-110496/1-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110549 Prep Batch: 110496 RL MDL Diesel Range Organics [C10-C28]ND 1.0 mg/Kg 03/27/12 13:07 03/28/12 22:32 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 50 mg/Kg 03/27/12 13:07 03/28/12 22:32 1 Motor Oil Range Organics [C24-C36] Capric Acid (Surr)0.07 0 -1 03/28/12 22:32 1 MB MB Surrogate 03/27/12 13:07 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 84 03/27/12 13:07 03/28/12 22:32 1 p-Terphenyl 38 -148 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110496/2-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110549 Prep Batch: 110496 Diesel Range Organics [C10-C28] 83.0 80.3 mg/Kg 97 36 -112 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits p-Terphenyl 38 -148 Surrogate 127 LCS LCS Qualifier Limits %Recovery Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110496/3-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110549 Prep Batch: 110496 Diesel Range Organics [C10-C28] 83.0 76.1 mg/Kg 92 36 -112 5 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit p-Terphenyl 38 -148 Surrogate 122 LCSD LCSD Qualifier Limits %Recovery TestAmerica San Francisco Page 21 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8081 A - Organochlorine Pesticides (GC) Client Sample ID: Method Blank Lab Sample ID: MB 720-110573/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 RL MDL Aldrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Dieldrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin aldehyde ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin ketone ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Heptachlor ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Heptachlor epoxide ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDT ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDE ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDD ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan I ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan II ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 alpha-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 beta-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 gamma-BHC (Lindane) ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 delta-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan sulfate ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Methoxychlor ND 39 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Toxaphene ND 39 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Chlordane (technical) ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 alpha-Chlordane ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 gamma-Chlordane Tetrachloro-m-xylene 72 34 -110 03/29/12 18:02 1 MB MB Surrogate 03/28/12 13:17 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 90 03/28/12 13:17 03/29/12 18:02 1 DCB Decachlorobiphenyl 21 -136 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110573/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Aldrin 16.4 11.2 ug/Kg 68 54 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Dieldrin 16.4 14.0 ug/Kg 86 59 -120 Endrin aldehyde 16.4 14.8 ug/Kg 90 40 -120 Endrin 16.4 14.2 ug/Kg 87 53 -120 Endrin ketone 16.4 15.9 ug/Kg 97 40 -120 Heptachlor 16.4 11.9 ug/Kg 73 54 -120 Heptachlor epoxide 16.4 13.7 ug/Kg 84 40 -120 4,4'-DDT 16.4 13.3 ug/Kg 81 51 -120 4,4'-DDE 16.4 14.3 ug/Kg 87 40 -120 4,4'-DDD 16.4 15.1 ug/Kg 92 40 -120 Endosulfan I 16.4 14.0 ug/Kg 86 40 -120 Endosulfan II 16.4 15.1 ug/Kg 92 40 -120 alpha-BHC 16.4 10.6 ug/Kg 65 40 -120 beta-BHC 16.4 14.5 ug/Kg 89 40 -120 gamma-BHC (Lindane)16.4 11.9 ug/Kg 73 50 -96 delta-BHC 16.4 12.8 ug/Kg 78 40 -120 Endosulfan sulfate 16.4 15.7 ug/Kg 96 40 -120 TestAmerica San Francisco Page 22 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8081 A - Organochlorine Pesticides (GC) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110573/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Methoxychlor 16.4 18.9 ug/Kg 115 40 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits alpha-Chlordane 16.4 14.2 ug/Kg 87 40 -120 gamma-Chlordane 16.4 14.0 ug/Kg 86 40 -120 Tetrachloro-m-xylene 34 -110 Surrogate 69 LCS LCS Qualifier Limits %Recovery 87 DCB Decachlorobiphenyl 21 -136 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110573/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Aldrin 16.4 12.7 ug/Kg 77 54 -120 12 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Dieldrin 16.4 15.2 ug/Kg 92 59 -120 8 20 Endrin aldehyde 16.4 16.3 ug/Kg 99 40 -120 9 20 Endrin 16.4 15.4 ug/Kg 94 53 -120 8 20 Endrin ketone 16.4 17.5 ug/Kg 107 40 -120 10 20 Heptachlor 16.4 13.3 ug/Kg 81 54 -120 11 20 Heptachlor epoxide 16.4 14.9 ug/Kg 91 40 -120 8 20 4,4'-DDT 16.4 14.3 ug/Kg 87 51 -120 8 20 4,4'-DDE 16.4 15.5 ug/Kg 94 40 -120 8 20 4,4'-DDD 16.4 16.3 ug/Kg 99 40 -120 8 20 Endosulfan I 16.4 15.3 ug/Kg 93 40 -120 9 20 Endosulfan II 16.4 16.3 ug/Kg 99 40 -120 8 35 alpha-BHC 16.4 11.8 ug/Kg 72 40 -120 10 20 beta-BHC 16.4 15.6 ug/Kg 95 40 -120 7 20 gamma-BHC (Lindane)16.4 13.2 ug/Kg 80 50 -96 10 20 delta-BHC 16.4 13.8 ug/Kg 84 40 -120 8 20 Endosulfan sulfate 16.4 17.0 ug/Kg 103 40 -120 8 20 Methoxychlor 16.4 18.7 ug/Kg 114 40 -120 1 20 alpha-Chlordane 16.4 15.4 ug/Kg 94 40 -120 8 20 gamma-Chlordane 16.4 15.2 ug/Kg 92 40 -120 8 20 Tetrachloro-m-xylene 34 -110 Surrogate 76 LCSD LCSD Qualifier Limits %Recovery 96 DCB Decachlorobiphenyl 21 -136 Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Client Sample ID: Method Blank Lab Sample ID: MB 720-110487/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110468 Prep Batch: 110487 RL MDL PCB-1016 ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 PCB-1221 ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 PCB-1232 ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 PCB-1242 TestAmerica San Francisco Page 23 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110487/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110468 Prep Batch: 110487 RL MDL PCB-1248 ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 PCB-1254 ND 49 ug/Kg 03/27/12 12:16 03/27/12 21:29 1 PCB-1260 Tetrachloro-m-xylene 80 32 -112 03/27/12 21:29 1 MB MB Surrogate 03/27/12 12:16 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 85 03/27/12 12:16 03/27/12 21:29 1 DCB Decachlorobiphenyl 2 -122 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110487/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110468 Prep Batch: 110487 PCB-1016 133 114 ug/Kg 86 65 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits PCB-1260 133 118 ug/Kg 89 65 -120 Tetrachloro-m-xylene 32 -112 Surrogate 80 LCS LCS Qualifier Limits %Recovery 83 DCB Decachlorobiphenyl 2 -122 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110487/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110468 Prep Batch: 110487 PCB-1016 129 112 ug/Kg 87 65 -120 2 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit PCB-1260 129 118 ug/Kg 91 65 -120 1 20 Tetrachloro-m-xylene 32 -112 Surrogate 83 LCSD LCSD Qualifier Limits %Recovery 88 DCB Decachlorobiphenyl 2 -122 Method: 7199 - Chromium, Hexavalent (IC) Client Sample ID: Method Blank Lab Sample ID: MB 440-16109/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 16147 Prep Batch: 16109 RL MDL Cr (VI)ND 2.0 mg/Kg 03/28/12 16:04 03/28/12 17:49 10 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier Client Sample ID: Lab Control Sample Lab Sample ID: LCS 440-16109/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 16147 Prep Batch: 16109 Cr (VI)16.0 15.6 mg/Kg 98 65 -110 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits TestAmerica San Francisco Page 24 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) Client Sample ID: Method Blank Lab Sample ID: MB 720-110443/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110529 Prep Batch: 110443 RL MDL Antimony ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 1.0 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Arsenic ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Barium ND 0.10 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Beryllium ND 0.13 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Cadmium ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Chromium ND 0.20 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Cobalt ND 1.5 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Copper ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Lead ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Molybdenum ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Nickel ND 1.0 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Selenium ND 0.25 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Silver ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Thallium ND 0.50 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Vanadium ND 1.5 mg/Kg 03/26/12 19:50 03/27/12 16:29 1 Zinc Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110443/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110529 Prep Batch: 110443 Antimony 50.0 46.1 mg/Kg 92 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 50.0 46.5 mg/Kg 93 80 -120 Barium 50.0 49.5 mg/Kg 99 80 -120 Beryllium 50.0 50.2 mg/Kg 100 80 -120 Cadmium 50.0 48.4 mg/Kg 97 80 -120 Chromium 50.0 48.5 mg/Kg 97 80 -120 Cobalt 50.0 48.0 mg/Kg 96 80 -120 Copper 50.0 48.1 mg/Kg 96 80 -120 Lead 50.0 48.8 mg/Kg 98 80 -120 Molybdenum 50.0 48.5 mg/Kg 97 80 -120 Nickel 50.0 48.6 mg/Kg 97 80 -120 Selenium 50.0 46.9 mg/Kg 94 80 -120 Silver 25.0 23.1 mg/Kg 93 80 -120 Thallium 50.0 48.7 mg/Kg 97 80 -120 Vanadium 50.0 49.0 mg/Kg 98 80 -120 Zinc 50.0 46.8 mg/Kg 94 80 -120 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110443/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110529 Prep Batch: 110443 Antimony 50.0 47.1 mg/Kg 94 80 -120 2 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Arsenic 50.0 47.4 mg/Kg 95 80 -120 2 20 Barium 50.0 47.4 mg/Kg 95 80 -120 4 20 Beryllium 50.0 48.0 mg/Kg 96 80 -120 5 20 Cadmium 50.0 48.7 mg/Kg 97 80 -120 1 20 Chromium 50.0 48.9 mg/Kg 98 80 -120 1 20 TestAmerica San Francisco Page 25 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110443/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110529 Prep Batch: 110443 Cobalt 50.0 48.8 mg/Kg 98 80 -120 2 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Copper 50.0 48.5 mg/Kg 97 80 -120 1 20 Lead 50.0 49.3 mg/Kg 99 80 -120 1 20 Molybdenum 50.0 49.2 mg/Kg 98 80 -120 1 20 Nickel 50.0 49.2 mg/Kg 98 80 -120 1 20 Selenium 50.0 47.6 mg/Kg 95 80 -120 1 20 Silver 25.0 23.3 mg/Kg 93 80 -120 1 20 Thallium 50.0 49.2 mg/Kg 98 80 -120 1 20 Vanadium 50.0 49.0 mg/Kg 98 80 -120 0 20 Zinc 50.0 47.7 mg/Kg 95 80 -120 2 20 Client Sample ID: Lab Control Sample Lab Sample ID: LCSSRM 720-110443/25-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110529 Prep Batch: 110443 Antimony 105 59.0 mg/Kg 56 11 -101 Analyte LCSSRM LCSSRM D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 79.4 74.6 mg/Kg 94 69 -119 Barium 391 334 mg/Kg 86 61 -117 Beryllium 304 273 mg/Kg 90 56 -102 Cadmium 48.3 42.3 mg/Kg 88 67 -118 Chromium 171 155 mg/Kg 91 67 -121 Cobalt 59.2 54.8 mg/Kg 92 64 -133 Copper 327 298 mg/Kg 91 68 -126 Lead 181 159 mg/Kg 88 62 -113 Molybdenum 156 145 mg/Kg 93 62 -128 Nickel 76.0 67.7 mg/Kg 89 65 -117 Selenium 76.9 68.1 mg/Kg 89 63 -126 Silver 29.1 26.5 mg/Kg 91 51 -130 Thallium 192 168 mg/Kg 88 64 -124 Vanadium 213 200 mg/Kg 94 67 -123 Zinc 256 233 mg/Kg 91 62 -110 Client Sample ID: Method Blank Lab Sample ID: MB 720-110650/1-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110738 Prep Batch: 110650 RL MDL Antimony ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Arsenic ND 0.0050 mg/L 03/29/12 10:25 03/29/12 20:07 1 Barium ND 0.0020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Beryllium ND 0.0020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Cadmium ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Chromium ND 0.0020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Cobalt ND 0.020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Copper ND 0.0050 mg/L 03/29/12 10:25 03/29/12 20:07 1 Lead ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Molybdenum ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Nickel ND 0.020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Selenium TestAmerica San Francisco Page 26 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110650/1-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110738 Prep Batch: 110650 RL MDL Silver ND 0.0050 mg/L 03/29/12 10:25 03/29/12 20:07 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Thallium ND 0.010 mg/L 03/29/12 10:25 03/29/12 20:07 1 Vanadium ND 0.020 mg/L 03/29/12 10:25 03/29/12 20:07 1 Zinc Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110650/2-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110738 Prep Batch: 110650 Antimony 1.00 0.982 mg/L 98 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 1.00 0.980 mg/L 98 80 -120 Barium 1.00 1.01 mg/L 101 80 -120 Beryllium 1.00 0.992 mg/L 99 80 -120 Cadmium 1.00 1.00 mg/L 100 80 -120 Chromium 1.00 1.01 mg/L 101 80 -120 Cobalt 1.00 1.01 mg/L 101 80 -120 Copper 1.00 1.00 mg/L 100 80 -120 Lead 1.00 1.01 mg/L 101 80 -120 Molybdenum 1.00 0.968 mg/L 97 80 -120 Nickel 1.00 1.01 mg/L 101 80 -120 Selenium 1.00 0.984 mg/L 98 80 -120 Silver 0.500 0.493 mg/L 99 80 -120 Thallium 1.00 1.01 mg/L 101 80 -120 Vanadium 1.00 0.983 mg/L 98 80 -120 Zinc 1.00 1.01 mg/L 101 80 -120 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110650/3-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110738 Prep Batch: 110650 Antimony 1.00 1.01 mg/L 101 80 -120 3 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Arsenic 1.00 1.01 mg/L 101 80 -120 3 20 Barium 1.00 1.03 mg/L 103 80 -120 2 20 Beryllium 1.00 1.01 mg/L 101 80 -120 2 20 Cadmium 1.00 1.03 mg/L 103 80 -120 3 20 Chromium 1.00 1.04 mg/L 104 80 -120 3 20 Cobalt 1.00 1.04 mg/L 104 80 -120 3 20 Copper 1.00 1.03 mg/L 103 80 -120 3 20 Lead 1.00 1.04 mg/L 104 80 -120 3 20 Molybdenum 1.00 1.00 mg/L 100 80 -120 3 20 Nickel 1.00 1.03 mg/L 103 80 -120 3 20 Selenium 1.00 1.01 mg/L 101 80 -120 3 20 Silver 0.500 0.510 mg/L 102 80 -120 3 20 Thallium 1.00 1.04 mg/L 104 80 -120 3 20 Vanadium 1.00 1.01 mg/L 101 80 -120 3 20 Zinc 1.00 1.04 mg/L 104 80 -120 3 20 TestAmerica San Francisco Page 27 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Method Blank Lab Sample ID: LB4 720-110434/1-C LB4 Matrix: Solid Prep Type: STLC Citrate Analysis Batch: 110738 Prep Batch: 110650 RL MDL Antimony ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 LB4 LB4 Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Arsenic 0.178 0.13 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Barium ND 0.050 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Beryllium ND 0.050 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Cadmium ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Chromium ND 0.050 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Cobalt ND 0.50 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Copper ND 0.13 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Lead ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Molybdenum ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Nickel ND 0.50 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Selenium ND 0.13 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Silver ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Thallium ND 0.25 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Vanadium ND 0.50 mg/L 03/29/12 10:25 03/29/12 20:42 2.5 Zinc Method: 7471 A - Mercury (CVAA) Client Sample ID: Method Blank Lab Sample ID: MB 720-110613/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 RL MDL Mercury ND 0.010 mg/Kg 03/28/12 18:52 03/29/12 20:32 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110613/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 Mercury 0.833 0.817 mg/Kg 98 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110613/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 Mercury 0.833 0.815 mg/Kg 98 80 -120 0 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit TestAmerica San Francisco Page 28 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby GC/MS VOA Analysis Batch: 110463 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260B/CA_LUFT MS 110482 720-4 1168-1 SP-1 (1')Total/NA Solid 8260B/CA_LUFT MS 110482 LCS 720-110482/2-A Lab Control Sample Total/NA Solid 8260B/CA_LUFT MS 110482 LCS 720-110482/4-A Lab Control Sample Total/NA Solid 8260B/CA_LUFT MS 110482 LCSD 720-110482/3-A Lab Control Sample Dup Total/NA Solid 8260B/CA_LUFT MS 110482 LCSD 720-110482/5-A Lab Control Sample Dup Total/NA Solid 8260B/CA_LUFT MS 110482 MB 720-110482/1-A Method Blank Total/NA Prep Batch: 110482 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035 720-4 1168-1 SP-1 (1')Total/NA Solid 5035 LCS 720-110482/2-A Lab Control Sample Total/NA Solid 5035 LCS 720-110482/4-A Lab Control Sample Total/NA Solid 5035 LCSD 720-110482/3-A Lab Control Sample Dup Total/NA Solid 5035 LCSD 720-110482/5-A Lab Control Sample Dup Total/NA Solid 5035 MB 720-110482/1-A Method Blank Total/NA GC/MS Semi VOA Prep Batch: 110629 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1168-1 SP-1 (1')Total/NA Solid 3546 LCS 720-110629/2-A Lab Control Sample Total/NA Solid 3546 LCSD 720-110629/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110629/1-A Method Blank Total/NA Analysis Batch: 110647 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8270C 110629 720-4 1168-1 SP-1 (1')Total/NA Solid 8270C 110629 LCS 720-110629/2-A Lab Control Sample Total/NA Solid 8270C 110629 LCSD 720-110629/3-A Lab Control Sample Dup Total/NA Solid 8270C 110629 MB 720-110629/1-A Method Blank Total/NA GC Semi VOA Analysis Batch: 110468 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8082 110487 LCS 720-110487/2-A Lab Control Sample Total/NA Solid 8082 110487 LCSD 720-110487/3-A Lab Control Sample Dup Total/NA Solid 8082 110487 MB 720-110487/1-A Method Blank Total/NA Prep Batch: 110487 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1168-1 SP-1 (1')Total/NA Solid 3546 LCS 720-110487/2-A Lab Control Sample Total/NA Solid 3546 LCSD 720-110487/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110487/1-A Method Blank Total/NA TestAmerica San Francisco Page 29 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby GC Semi VO A (Continued) Prep Batch: 110496 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1168-1 SP-1 (1')Silica Gel Cleanup Solid 3546 LCS 720-110496/2-A Lab Control Sample Silica Gel Cleanup Solid 3546 LCSD 720-110496/3-A Lab Control Sample Dup Silica Gel Cleanup Solid 3546 MB 720-110496/1-A Method Blank Silica Gel Cleanup Analysis Batch: 110548 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8015B 110496 720-4 1168-1 SP-1 (1')Silica Gel Cleanup Analysis Batch: 110549 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8015B 110496 LCS 720-110496/2-A Lab Control Sample Silica Gel Cleanup Solid 8015B 110496 LCSD 720-110496/3-A Lab Control Sample Dup Silica Gel Cleanup Solid 8015B 110496 MB 720-110496/1-A Method Blank Silica Gel Cleanup Prep Batch: 110573 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1168-1 SP-1 (1')Total/NA Solid 3546 LCS 720-110573/2-A Lab Control Sample Total/NA Solid 3546 LCSD 720-110573/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110573/1-A Method Blank Total/NA Analysis Batch: 110582 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8082 110487 720-4 1168-1 SP-1 (1')Total/NA Analysis Batch: 110658 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8081A 110573 720-4 1168-1 SP-1 (1')Total/NA Solid 8081A 110573 LCS 720-110573/2-A Lab Control Sample Total/NA Solid 8081A 110573 LCSD 720-110573/3-A Lab Control Sample Dup Total/NA Solid 8081A 110573 MB 720-110573/1-A Method Blank Total/NA HPLC/IC Prep Batch: 16109 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3060A 720-4 1168-1 SP-1 (1')Total/NA Solid 3060A LCS 440-16109/2-A Lab Control Sample Total/NA Solid 3060A MB 440-16109/1-A Method Blank Total/NA Analysis Batch: 16147 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7199 16109 720-4 1168-1 SP-1 (1')Total/NA Solid 7199 16109 LCS 440-16109/2-A Lab Control Sample Total/NA Solid 7199 16109 MB 440-16109/1-A Method Blank Total/NA Metals Leach Batch: 110434 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid C A WET Citrate 720-4 1168-1 SP-1 (1')STLC Citrate TestAmerica San Francisco Page 30 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Metals (Continued) Leach Batch: 110434 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid C A WET Citrate LB4 720-110434/1-C LB4 Method Blank STLC Citrate Prep Batch: 110443 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3050B 720-4 1168-1 SP-1 (1')Total/NA Solid 3050B LCS 720-110443/2-A Lab Control Sample Total/NA Solid 3050B LCSD 720-110443/3-A Lab Control Sample Dup Total/NA Solid 3050B LCSSRM 720-110443/25-A Lab Control Sample Total/NA Solid 3050B MB 720-110443/1-A Method Blank Total/NA Analysis Batch: 110529 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110443 720-4 1168-1 SP-1 (1')Total/NA Solid 6010B 110443 LCS 720-110443/2-A Lab Control Sample Total/NA Solid 6010B 110443 LCSD 720-110443/3-A Lab Control Sample Dup Total/NA Solid 6010B 110443 LCSSRM 720-110443/25-A Lab Control Sample Total/NA Solid 6010B 110443 MB 720-110443/1-A Method Blank Total/NA Prep Batch: 110613 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471A 720-4 1168-1 SP-1 (1')Total/NA Solid 7471A LCS 720-110613/2-A Lab Control Sample Total/NA Solid 7471A LCSD 720-110613/3-A Lab Control Sample Dup Total/NA Solid 7471A MB 720-110613/1-A Method Blank Total/NA Prep Batch: 110650 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3005A 110434 720-4 1168-1 SP-1 (1')STLC Citrate Solid 3005A 110434 LB4 720-110434/1-C LB4 Method Blank STLC Citrate Solid 3005A LCS 720-110650/2-A Lab Control Sample Total Recoverable Solid 3005A LCSD 720-110650/3-A Lab Control Sample Dup Total Recoverable Solid 3005A MB 720-110650/1-A Method Blank Total Recoverable Analysis Batch: 110710 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471A 110613 720-4 1168-1 SP-1 (1')Total/NA Solid 7471A 110613 LCS 720-110613/2-A Lab Control Sample Total/NA Solid 7471A 110613 LCSD 720-110613/3-A Lab Control Sample Dup Total/NA Solid 7471A 110613 MB 720-110613/1-A Method Blank Total/NA Analysis Batch: 110738 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110650 720-4 1168-1 SP-1 (1')STLC Citrate Solid 6010B 110650 LB4 720-110434/1-C LB4 Method Blank STLC Citrate Solid 6010B 110650 LCS 720-110650/2-A Lab Control Sample Total Recoverable Solid 6010B 110650 LCSD 720-110650/3-A Lab Control Sample Dup Total Recoverable Solid 6010B 110650 MB 720-110650/1-A Method Blank Total Recoverable TestAmerica San Francisco Page 31 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: Cornerstone Earth Group TestAmerica Job ID: 720-41168-1 Project/Site: Building 12 Lobby Client Sample ID: SP-1 (1')Lab Sample ID: 720-4 1168-1 Matrix: Solid Date Collected: 03/26/12 13:20 Date Received: 03/26/12 18:50 Prep 5035 03/27/12 09:15 DH 110482 TAL SF Type Batch Batch Method Prep Type Lab Analyst Run Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 8260B/CA_LUFTMS 1 110463 03/27/12 11:44 AC TAL SF Total/NA Prep 3546 110629 03/29/12 07:18 NP TAL SF Total/NA Analysis 8270C 1 110647 03/29/12 19:09 ML TAL SF Total/NA Prep 3546 110496 03/27/12 13:07 AM TAL SF Silica Gel Cleanup Analysis 8015B 1 110548 03/28/12 22:32 WR TAL SF Silica Gel Cleanup Prep 3546 110487 03/27/12 13:17 AM TAL SF Total/NA Analysis 8082 1 110582 03/28/12 22:46 WR TAL SF Total/NA Prep 3546 110573 03/28/12 13:17 NP TAL SF Total/NA Analysis 8081A 1 110658 03/29/12 19:57 WR TAL SF Total/NA Prep 3060A 16109 03/28/12 16:04 SL TAL IRV Total/NA Analysis 7199 10 16147 03/28/12 20:36 SL TAL IRV Total/NA Prep 3050B 110443 03/26/12 19:50 CDT TAL SF Total/NA Analysis 6010B 4 110529 03/27/12 18:31 BA TAL SF Total/NA Prep 7471A 110613 03/28/12 18:52 CDT TAL SF Total/NA Analysis 7471A 1 110710 03/29/12 21:02 SK TAL SF Total/NA Leach C A WET Citrate 110434 03/27/12 00:44 SK TAL SF STLC Citrate Prep 3005A 110650 03/29/12 10:25 EFH TAL SF STLC Citrate Analysis 6010B 2.5 110738 03/29/12 21:19 BA TAL SF STLC Citrate Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SF = TestAmerica San Francisco, 1220 Quarry Lane, Pleasanton, CA 94566, TEL (925)484-1919 TestAmerica San Francisco Page 32 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Certification Summary Client: Cornerstone Earth Group TestAmerica Job ID: 720-41168-1 Project/Site: Building 12 Lobby Laboratory Authority Program E PA Region Certification ID TestAmerica San Francisco 2496 State Program California 9 TestAmerica Irvine AZ0671 State Program Arizona 9 TestAmerica Irvine 10256 L A Cty Sanitation Districts California 9 TestAmerica Irvine 1108CA NELAC California 9 TestAmerica Irvine 2706 State Program California 9 TestAmerica Irvine Cert. No. 10.001r State Program Guam 9 TestAmerica Irvine N/A State Program Hawaii 9 TestAmerica Irvine CA015312007A State Program Nevada 9 TestAmerica Irvine N/A State Program New Mexico 6 TestAmerica Irvine MP0002 State Program Northern Mariana Islands 9 TestAmerica Irvine 4005 NELAC Oregon 10 TestAmerica Irvine P330-09-00080 Federal USDA Accreditation may not be o ffered or required for all methods and analytes reported in this package . Please contact your project manager for the laboratory's current list of certified methods and analytes. TestAmerica San Francisco Page 33 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method Method Description Laboratory Protocol SW846 8260B/CA_LUFTM S 8260B / C A LUFT MS TAL SF SW846 8270C Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS)TAL SF SW846 8015B Diesel Range Organics (DRO) (GC)TAL SF SW846 8081A Organochlorine Pesticides (GC)TAL SF SW846 8082 Polychlorinated Biphenyls (PCBs) by Gas Chromatography TAL SF SW846 7199 Chromium, Hexavalent (IC)TAL IRV SW846 6010B Metals (ICP)TAL SF SW846 7471A Mercury (C VAA)TAL SF Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SF = TestAmerica San Francisco, 1220 Quarry Lane, Pleasanton, CA 94566, TEL (925)484-1919 TestAmerica San Francisco Page 34 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary TestAmerica Job ID: 720-41168-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID Client Sample ID Received Collected Matrix 720-4 1168-1 SP-1 (1')Solid 03/26/12 13:20 03/26/12 18:50 TestAmerica San Francisco Page 35 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 36 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Login Sample Receipt Checklist Client: Cornerstone Earth Group Job Number: 720-4 1168 -1 Login Number: 4 1168 Question Answer Comment Creator: Apostol, Anita List Source: TestAmerica San Francisco List Number: 1 N/A Radioactivity either was not measured or, if measured, is at or below background N/A The cooler's custody seal, if present, is intact. True The cooler or samples do not appear to have been compromised or tampered with. True Samples were received on ice. True Cooler Temperature is acceptable . True Cooler Temperature is recorded . True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the sample IDs on the containers and the COC. True Samples are received within Holding Time . True Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. N/A Sample Preservation Verified . True There is su fficient vol . for all requested analyses, incl. any requested MS/MSDs True VO A sample vials do not have headspace or bubble is <6mm (1/4") in diameter. True Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. TestAmerica San Francisco Page 37 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Login Sample Receipt Checklist Client: Cornerstone Earth Group Job Number: 720-4 1168 -1 Login Number: 4 1168 Question Answer Comment Creator: Perez, Angel List Source: TestAmerica Irvine List Creation: 03/28/12 01:18 PM List Number: 1 N/A Radioactivity either was not measured or, if measured, is at or below background True The cooler's custody seal, if present, is intact. True The cooler or samples do not appear to have been compromised or tampered with. True Samples were received on ice. True Cooler Temperature is acceptable . True Cooler Temperature is recorded . True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. N/A Is the Field Sampler's name present on COC? True There are no discrepancies between the sample IDs on the containers and the COC. True Samples are received within Holding Time . True Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. N/A Sample Preservation Verified . True There is su fficient vol . for all requested analyses, incl. any requested MS/MSDs N/A VO A sample vials do not have headspace or bubble is <6mm (1/4") in diameter. True Multiphasic samples are not present. N/A Samples do not require splitting or compositing. N/A Residual Chlorine Checked. TestAmerica San Francisco Page 38 of 38 3/30/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ANALYTICAL REPORT TestAmerica Laboratories, Inc. TestAmerica San Francisco 1220 Quarry Lane Pleasanton, CA 94566 Tel: (925)484-1919 TestAmerica Job ID: 720-41196-1 Client Project/Site: Building 12 Lobby For: Cornerstone Earth Group 1259 Oakmead Parkway Sunnyvale, California 94085 Attn: Kurt Soenen Authorized for release by: 4/4/2012 9:58:09 AM Afsaneh Salimpour Project Manager I afsaneh.salimpour@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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: Cornerstone Earth Group Project/Site: Building 12 Lobby TestAmerica Job ID: 720-41196-1 Page 2 of 40 TestAmerica San Francisco 4/4/2012 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Qualifiers GC/MS Semi VOA Qualifier Description *RPD of the LCS and LCSD exceeds the control limits Qualifier GC Semi VOA Qualifier Description X Surrogate is outside control limits Qualifier Metals Qualifier Description B Compound was found in the blank and sample. Qualifier 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 Abbreviation %R Percent Recovery CNF Contains no Free Liquid DL, RA, RE, IN Indicates a Dilution, Reanalysis, Re-extraction, or additional Initial metals/anion analysis of the sample EDL Estimated Detection Limit E PA United States Environmental Protection Agency MDL Method Detection Limit ML Minimum Level (Dioxin) ND Not detected at the reporting limit (or MD L or EDL if shown) PQL Practical Quantitation Limit QC Quality Control RL Reporting Limit RPD Relative Percent Di fference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TestAmerica San Francisco Page 3 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: Cornerstone Earth Group TestAmerica Job ID: 720-41196-1 Project/Site: Building 12 Lobby Job ID: 720-4 1196-1 Laboratory: TestAmerica San Francisco Narrative Job Narrative 720-4 1196 -1 Comments No additional comments. Receipt All samples were received in good condition within temperature requirements. GC/MS VO A No analytical or quality issues were noted. GC/MS Semi VO A Method(s) 8270C: The laboratory control sample and the laboratory control sample duplicate (LCS/LCSD) for batch #110629 exceeded control limits for the following analyte(s): Benzoic acid. Benzoic acid has been identified as a poor performing analyte when analyzed using this method; therefore, re-extraction/re-analysis was not performed. Batch precision also exceeded control limits for these analyte(s). These results have been reported and qualified. No other analytical or quality issues were noted. HPLC No analytical or quality issues were noted. GC Semi VO A Method(s) 8081A: Surrogate recovery for the following sample(s) was outside control limits: SP-1 (2') (720-4 1196 -1). Evidence of matrix interference is present; therefore, re-extraction and/or re-analysis was not performed. No other analytical or quality issues were noted. Metals Method(s) 6010B: The leachate blank for stlc rotation batch 110790 contained Ba above the reporting limit (RL). The associated sample(s) contained detects for this analyte at concentrations greater than 10X the value found in the method blank; therefore, re-extraction and/or re-analysis of samples was not performed. No other analytical or quality issues were noted. General Chemistry No analytical or quality issues were noted. Organic Prep No analytical or quality issues were noted. TestAmerica San Francisco Page 4 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Detection Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Client Sample ID: SP-1 (2')Lab Sample ID: 720-4 1196-1 Diesel Range Organics [C10-C28]1.2 RL 1.0 mg/Kg 8015B 1 MDL Analyte Result Qualifier Unit Dil Fac D Method Prep Type Silica Gel Cleanup 4,4'-DDT 8081A 5.5 2.0 ug/Kg 1 Total/NA 4,4'-DDE 8081A 21 2.0 ug/Kg 1 Total/NA 4,4'-DDD 8081A 3.3 2.0 ug/Kg 1 Total/NA alpha-Chlordane 8081A 3.9 2.0 ug/Kg 1 Total/NA gamma-Chlordane 8081A 2.9 2.0 ug/Kg 1 Total/NA Barium 6010B 140 1.9 mg/Kg 4 Total/NA Chromium 6010B 54 1.9 mg/Kg 4 Total/NA Cobalt 6010B 14 0.77 mg/Kg 4 Total/NA Copper 6010B 34 5.8 mg/Kg 4 Total/NA Lead 6010B 7.9 1.9 mg/Kg 4 Total/NA Nickel 6010B 48 1.9 mg/Kg 4 Total/NA Vanadium 6010B 61 1.9 mg/Kg 4 Total/NA Zinc 6010B 55 5.8 mg/Kg 4 Total/NA Barium 6010B 5.8 B 0.13 mg/L 2.5 STLC Citrate Cobalt 6010B 0.35 0.050 mg/L 2.5 STLC Citrate Nickel 6010B 0.36 0.25 mg/L 2.5 STLC Citrate Vanadium 6010B 0.38 0.25 mg/L 2.5 STLC Citrate Mercury 7471A 0.077 0.0095 mg/Kg 1 Total/NA TestAmerica San Francisco Page 5 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1196-1 Client Sample ID: SP-1 (2') Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS RL MDL Methyl tert-butyl ether ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 43 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Acetone ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Benzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Dichlorobromomethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Bromobenzene ND 17 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chlorobromomethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Bromoform ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Bromomethane ND 43 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 2-Butanone (MEK)ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 n-Butylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 sec-Butylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 tert-Butylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Carbon disulfide ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Carbon tetrachloride ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chlorobenzene ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chloroform ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chloromethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 2-Chlorotoluene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 4-Chlorotoluene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Chlorodibromomethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2-Dichlorobenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,3-Dichlorobenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,4-Dichlorobenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,3-Dichloropropane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1-Dichloropropene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2-Dibromo-3-Chloropropane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Ethylene Dibromide ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Dibromomethane ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Dichlorodifluoromethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1-Dichloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2-Dichloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1-Dichloroethene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 cis-1,2-Dichloroethene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 trans-1,2-Dichloroethene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2-Dichloropropane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 cis-1,3-Dichloropropene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 trans-1,3-Dichloropropene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Ethylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Hexachlorobutadiene ND 43 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 2-Hexanone ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Isopropylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 4-Isopropyltoluene ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Methylene Chloride ND 43 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 4-Methyl-2-pentanone (MIBK)ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Naphthalene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 N-Propylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Styrene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1,1,2-Tetrachloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1,2,2-Tetrachloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Tetrachloroethene ND TestAmerica San Francisco Page 6 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1196-1 Client Sample ID: SP-1 (2') Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) RL MDL Toluene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2,3-Trichlorobenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2,4-Trichlorobenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1,1-Trichloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1,2-Trichloroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Trichloroethene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Trichlorofluoromethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2,3-Trichloropropane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,2,4-Trimethylbenzene ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 1,3,5-Trimethylbenzene ND 43 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Vinyl acetate ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Vinyl chloride ND 8.7 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Xylenes, Total ND 4.3 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 2,2-Dichloropropane ND 220 ug/Kg 03/28/12 07:30 03/28/12 15:41 1 Gasoline Range Organics (GRO) -C5-C12 ND 4-Bromofluorobenzene 85 45 -131 03/28/12 07:30 03/28/12 15:41 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery 1,2-Dichloroethane-d4 (Surr)97 03/28/12 07:30 03/28/12 15:41 1 60 -140 Toluene-d8 (Surr)93 03/28/12 07:30 03/28/12 15:41 1 58 -140 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) RL MDL Phenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Bis(2-chloroethyl)ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Chlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 1,3-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 1,4-Dichlorobenzene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzyl alcohol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 1,2-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Methylphenol, 3 & 4 ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 N-Nitrosodi-n-propylamine ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Hexachloroethane ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Nitrobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Isophorone ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Nitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4-Dimethylphenol ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Bis(2-chloroethoxy)methane ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4-Dichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 1,2,4-Trichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Naphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Chloroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Hexachlorobutadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Chloro-3-methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Methylnaphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Hexachlorocyclopentadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4,6-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4,5-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Chloronaphthalene ND TestAmerica San Francisco Page 7 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1196-1 Client Sample ID: SP-1 (2') Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) RL MDL 2-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Dimethyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Acenaphthylene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 3-Nitroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Acenaphthene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4-Dinitrophenol ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Nitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Dibenzofuran ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,4-Dinitrotoluene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2,6-Dinitrotoluene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Diethyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Chlorophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Fluorene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 2-Methyl-4,6-dinitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 N-Nitrosodiphenylamine ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 4-Bromophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Hexachlorobenzene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Pentachlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Phenanthrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Anthracene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Di-n-butyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Pyrene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Butyl benzyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 3,3'-Dichlorobenzidine ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzo[a]anthracene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Bis(2-ethylhexyl) phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Chrysene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Di-n-octyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzo[b]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzo[a]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzo[k]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Indeno[1,2,3-cd]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzo[g,h,i]perylene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Benzoic acid ND * 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Azobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 22:45 1 Dibenz(a,h)anthracene ND Nitrobenzene-d5 73 21 -98 03/29/12 07:18 03/29/12 22:45 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery 2-Fluorobiphenyl 83 03/29/12 07:18 03/29/12 22:45 1 30 -112 Terphenyl-d14 82 03/29/12 07:18 03/29/12 22:45 1 32 -117 2-Fluorophenol 67 03/29/12 07:18 03/29/12 22:45 1 28 -98 Phenol-d5 73 03/29/12 07:18 03/29/12 22:45 1 23 -101 2,4,6-Tribromophenol 90 03/29/12 07:18 03/29/12 22:45 1 37 -114 Method: 8015B - Diesel Range Organics (DRO) (GC) - Silica Gel Cleanup RL MDL Diesel Range Organics [C10-C28]1.2 1.0 mg/Kg 03/29/12 17:18 03/30/12 13:44 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 50 mg/Kg 03/29/12 17:18 03/30/12 13:44 1 Motor Oil Range Organics [C24-C36]ND TestAmerica San Francisco Page 8 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1196-1 Client Sample ID: SP-1 (2') Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Capric Acid (Surr)0.01 0 -1 03/29/12 17:18 03/30/12 13:44 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery p-Terphenyl 71 03/29/12 17:18 03/30/12 13:44 1 38 -148 Method: 8081 A - Organochlorine Pesticides (GC) RL MDL Aldrin ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Dieldrin ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endrin aldehyde ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endrin ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endrin ketone ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Heptachlor ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Heptachlor epoxide ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 4,4'-DDT 5.5 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 4,4'-DDE 21 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 4,4'-DDD 3.3 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endosulfan I ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endosulfan II ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 alpha-BHC ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 beta-BHC ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 gamma-BHC (Lindane)ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 delta-BHC ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Endosulfan sulfate ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Methoxychlor ND 40 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Toxaphene ND 40 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 Chlordane (technical)ND 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 alpha-Chlordane 3.9 2.0 ug/Kg 03/28/12 13:17 04/01/12 03:39 1 gamma-Chlordane 2.9 Tetrachloro-m-xylene 101 34 -110 03/28/12 13:17 04/01/12 03:39 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery DCB Decachlorobiphenyl 173 X 03/28/12 13:17 04/01/12 03:39 1 21 -136 Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography RL MDL PCB-1016 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1221 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1232 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1242 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1248 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1254 ND 50 ug/Kg 03/28/12 13:25 03/30/12 18:12 1 PCB-1260 ND Tetrachloro-m-xylene 62 32 -112 03/28/12 13:25 03/30/12 18:12 1 Surrogate Dil Fac Analyzed Prepared Qualifier Limits %Recovery DCB Decachlorobiphenyl 76 03/28/12 13:25 03/30/12 18:12 1 2 -122 Method: 7199 - Chromium, Hexavalent (IC) RL MDL Cr (VI)ND 2.0 mg/Kg 03/29/12 21:15 03/30/12 20:32 10 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier Method: 6010B - Metals (ICP) RL MDL Antimony ND 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier TestAmerica San Francisco Page 9 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID: 720-4 1196-1 Client Sample ID: SP-1 (2') Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Method: 6010B - Metals (ICP) (Continued) RL MDL Arsenic ND 3.8 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 1.9 mg/Kg 03/29/12 13:08 03/31/12 16:05 4 Barium 140 0.38 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Beryllium ND 0.48 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Cadmium ND 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Chromium 54 0.77 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Cobalt 14 5.8 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Copper 34 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Lead 7.9 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Molybdenum ND 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Nickel 48 3.8 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Selenium ND 0.96 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Silver ND 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Thallium ND 1.9 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Vanadium 61 5.8 mg/Kg 03/29/12 13:08 03/30/12 20:52 4 Zinc 55 Method: 6010B - Metals (ICP) - STLC Citrate RL MDL Antimony ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Arsenic ND 0.13 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Barium 5.8 B 0.050 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Beryllium ND 0.050 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Cadmium ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Chromium ND 0.050 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Cobalt 0.35 0.50 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Copper ND 0.13 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Lead ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Molybdenum ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Nickel 0.36 0.50 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Selenium ND 0.13 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Silver ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Thallium ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Vanadium 0.38 0.50 mg/L 04/02/12 08:26 04/02/12 18:46 2.5 Zinc ND Method: 7471 A - Mercury (CVAA) RL MDL Mercury 0.077 0.0095 mg/Kg 03/28/12 18:52 03/29/12 21:04 1 Analyte Dil Fac Analyzed Prepared Unit D Result Qualifier TestAmerica San Francisco Page 10 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS Client Sample ID: Method Blank Lab Sample ID: MB 720-110579/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 RL MDL Methyl tert-butyl ether ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 50 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Acetone ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Benzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Dichlorobromomethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Bromobenzene ND 20 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chlorobromomethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Bromoform ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Bromomethane ND 50 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 2-Butanone (MEK) ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 n-Butylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 sec-Butylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 tert-Butylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Carbon disulfide ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Carbon tetrachloride ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chlorobenzene ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chloroform ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chloromethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 2-Chlorotoluene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 4-Chlorotoluene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Chlorodibromomethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2-Dichlorobenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,3-Dichlorobenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,4-Dichlorobenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,3-Dichloropropane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1-Dichloropropene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2-Dibromo-3-Chloropropane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Ethylene Dibromide ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Dibromomethane ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Dichlorodifluoromethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1-Dichloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2-Dichloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1-Dichloroethene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 cis-1,2-Dichloroethene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 trans-1,2-Dichloroethene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2-Dichloropropane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 cis-1,3-Dichloropropene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 trans-1,3-Dichloropropene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Ethylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Hexachlorobutadiene ND 50 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 2-Hexanone ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Isopropylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 4-Isopropyltoluene ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Methylene Chloride ND 50 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 4-Methyl-2-pentanone (MIBK) ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Naphthalene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 N-Propylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Styrene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1,1,2-Tetrachloroethane TestAmerica San Francisco Page 11 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110579/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 RL MDL 1,1,2,2-Tetrachloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Tetrachloroethene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Toluene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2,3-Trichlorobenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2,4-Trichlorobenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1,1-Trichloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1,2-Trichloroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Trichloroethene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Trichlorofluoromethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2,3-Trichloropropane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,1,2-Trichloro-1,2,2-trifluoroethane ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,2,4-Trimethylbenzene ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 1,3,5-Trimethylbenzene ND 50 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Vinyl acetate ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Vinyl chloride ND 10 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Xylenes, Total ND 5.0 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 2,2-Dichloropropane ND 250 ug/Kg 03/28/12 07:30 03/28/12 12:07 1 Gasoline Range Organics (GRO) -C5-C12 4-Bromofluorobenzene 94 45 -131 03/28/12 12:07 1 MB MB Surrogate 03/28/12 07:30 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 91 03/28/12 07:30 03/28/12 12:07 1 1,2-Dichloroethane-d4 (Surr)60 -140 96 03/28/12 07:30 03/28/12 12:07 1 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110579/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Methyl tert-butyl ether 50.0 53.0 ug/Kg 106 70 -144 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Acetone 250 161 ug/Kg 65 30 -162 Benzene 50.0 54.6 ug/Kg 109 70 -130 Dichlorobromomethane 50.0 53.8 ug/Kg 108 70 -131 Bromobenzene 50.0 55.6 ug/Kg 111 70 -130 Chlorobromomethane 50.0 58.6 ug/Kg 117 70 -130 Bromoform 50.0 55.0 ug/Kg 110 59 -158 Bromomethane 50.0 44.4 ug/Kg 89 59 -132 2-Butanone (MEK)250 226 ug/Kg 90 60 -150 n-Butylbenzene 50.0 58.0 ug/Kg 116 70 -142 sec-Butylbenzene 50.0 56.8 ug/Kg 114 70 -136 tert-Butylbenzene 50.0 57.0 ug/Kg 114 70 -130 Carbon disulfide 50.0 53.0 ug/Kg 106 60 -140 Carbon tetrachloride 50.0 52.4 ug/Kg 105 70 -138 Chlorobenzene 50.0 53.4 ug/Kg 107 70 -130 Chloroethane 50.0 47.4 ug/Kg 95 65 -130 Chloroform 50.0 52.2 ug/Kg 104 77 -127 Chloromethane 50.0 44.6 ug/Kg 89 55 -140 2-Chlorotoluene 50.0 55.8 ug/Kg 112 70 -138 4-Chlorotoluene 50.0 54.0 ug/Kg 108 70 -136 TestAmerica San Francisco Page 12 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110579/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Chlorodibromomethane 50.0 53.8 ug/Kg 108 70 -146 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 1,2-Dichlorobenzene 50.0 55.8 ug/Kg 112 70 -130 1,3-Dichlorobenzene 50.0 55.8 ug/Kg 112 70 -131 1,4-Dichlorobenzene 50.0 55.4 ug/Kg 111 70 -130 1,3-Dichloropropane 50.0 55.8 ug/Kg 112 70 -140 1,1-Dichloropropene 50.0 55.0 ug/Kg 110 70 -130 1,2-Dibromo-3-Chloropropane 50.0 59.8 ug/Kg 120 60 -145 Ethylene Dibromide 50.0 57.0 ug/Kg 114 70 -140 Dibromomethane 50.0 56.2 ug/Kg 112 70 -139 Dichlorodifluoromethane 50.0 34.0 ug/Kg 68 37 -158 1,1-Dichloroethane 50.0 54.0 ug/Kg 108 70 -130 1,2-Dichloroethane 50.0 50.0 ug/Kg 100 70 -130 1,1-Dichloroethene 50.0 51.4 ug/Kg 103 76 -122 cis-1,2-Dichloroethene 50.0 61.4 ug/Kg 123 70 -138 trans-1,2-Dichloroethene 50.0 45.4 ug/Kg 91 67 -130 1,2-Dichloropropane 50.0 54.6 ug/Kg 109 73 -127 cis-1,3-Dichloropropene 50.0 55.2 ug/Kg 110 68 -147 trans-1,3-Dichloropropene 50.0 56.0 ug/Kg 112 70 -136 Ethylbenzene 50.0 53.2 ug/Kg 106 80 -137 Hexachlorobutadiene 50.0 62.0 ug/Kg 124 70 -132 2-Hexanone 250 237 ug/Kg 95 60 -161 Isopropylbenzene 50.0 55.8 ug/Kg 112 88 -128 4-Isopropyltoluene 50.0 59.6 ug/Kg 119 70 -133 Methylene Chloride 50.0 54.6 ug/Kg 109 70 -134 4-Methyl-2-pentanone (MIBK)250 271 ug/Kg 108 60 -160 Naphthalene 50.0 62.0 ug/Kg 124 60 -147 N-Propylbenzene 50.0 54.4 ug/Kg 109 70 -130 Styrene 50.0 55.4 ug/Kg 111 70 -130 1,1,1,2-Tetrachloroethane 50.0 53.8 ug/Kg 108 70 -130 1,1,2,2-Tetrachloroethane 50.0 57.4 ug/Kg 115 70 -146 Tetrachloroethene 50.0 54.4 ug/Kg 109 70 -132 Toluene 50.0 54.4 ug/Kg 109 80 -128 1,2,3-Trichlorobenzene 50.0 57.6 ug/Kg 115 60 -140 1,2,4-Trichlorobenzene 50.0 57.8 ug/Kg 116 60 -140 1,1,1-Trichloroethane 50.0 54.0 ug/Kg 108 70 -130 1,1,2-Trichloroethane 50.0 56.0 ug/Kg 112 70 -130 Trichloroethene 50.0 55.4 ug/Kg 111 70 -133 Trichlorofluoromethane 50.0 44.6 ug/Kg 89 60 -140 1,2,3-Trichloropropane 50.0 57.2 ug/Kg 114 70 -146 1,1,2-Trichloro -1,2,2-trifluoroetha ne 50.0 58.8 ug/Kg 118 60 -140 1,2,4-Trimethylbenzene 50.0 54.6 ug/Kg 109 70 -130 1,3,5-Trimethylbenzene 50.0 55.4 ug/Kg 111 70 -131 Vinyl acetate 50.0 77.8 ug/Kg 156 38 -176 Vinyl chloride 50.0 44.6 ug/Kg 89 58 -125 m-Xylene & p-Xylene 100 108 ug/Kg 108 70 -146 o-Xylene 50.0 54.6 ug/Kg 109 70 -140 2,2-Dichloropropane 50.0 59.6 ug/Kg 119 70 -162 TestAmerica San Francisco Page 13 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110579/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 4-Bromofluorobenzene 45 -131 Surrogate 93 LCS LCS Qualifier Limits %Recovery 86 1,2-Dichloroethane-d4 (Surr)60 -140 96 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110579/4-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Gasoline Range Organics (GRO) -C5-C12 1000 1010 ug/Kg 101 61 -128 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 4-Bromofluorobenzene 45 -131 Surrogate 95 LCS LCS Qualifier Limits %Recovery 93 1,2-Dichloroethane-d4 (Surr)60 -140 97 Toluene-d8 (Surr)58 -140 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110579/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Methyl tert-butyl ether 50.0 53.0 ug/Kg 106 70 -144 0 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Acetone 250 155 ug/Kg 62 30 -162 4 30 Benzene 50.0 55.8 ug/Kg 112 70 -130 2 20 Dichlorobromomethane 50.0 53.4 ug/Kg 107 70 -131 1 20 Bromobenzene 50.0 56.2 ug/Kg 112 70 -130 1 20 Chlorobromomethane 50.0 59.0 ug/Kg 118 70 -130 1 20 Bromoform 50.0 54.4 ug/Kg 109 59 -158 1 20 Bromomethane 50.0 47.0 ug/Kg 94 59 -132 6 20 2-Butanone (MEK)250 220 ug/Kg 88 60 -150 3 20 n-Butylbenzene 50.0 59.0 ug/Kg 118 70 -142 2 20 sec-Butylbenzene 50.0 58.2 ug/Kg 116 70 -136 2 20 tert-Butylbenzene 50.0 58.4 ug/Kg 117 70 -130 2 20 Carbon disulfide 50.0 54.6 ug/Kg 109 60 -140 3 20 Carbon tetrachloride 50.0 53.4 ug/Kg 107 70 -138 2 20 Chlorobenzene 50.0 54.0 ug/Kg 108 70 -130 1 20 Chloroethane 50.0 48.8 ug/Kg 98 65 -130 3 20 Chloroform 50.0 53.2 ug/Kg 106 77 -127 2 20 Chloromethane 50.0 46.6 ug/Kg 93 55 -140 4 20 2-Chlorotoluene 50.0 56.8 ug/Kg 114 70 -138 2 20 4-Chlorotoluene 50.0 55.0 ug/Kg 110 70 -136 2 20 Chlorodibromomethane 50.0 52.4 ug/Kg 105 70 -146 3 20 1,2-Dichlorobenzene 50.0 55.6 ug/Kg 111 70 -130 0 20 1,3-Dichlorobenzene 50.0 55.6 ug/Kg 111 70 -131 0 20 1,4-Dichlorobenzene 50.0 55.8 ug/Kg 112 70 -130 1 20 1,3-Dichloropropane 50.0 54.2 ug/Kg 108 70 -140 3 20 1,1-Dichloropropene 50.0 55.6 ug/Kg 111 70 -130 1 20 1,2-Dibromo-3-Chloropropane 50.0 57.2 ug/Kg 114 60 -145 4 20 TestAmerica San Francisco Page 14 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110579/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Ethylene Dibromide 50.0 56.4 ug/Kg 113 70 -140 1 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Dibromomethane 50.0 56.0 ug/Kg 112 70 -139 0 20 Dichlorodifluoromethane 50.0 35.6 ug/Kg 71 37 -158 5 20 1,1-Dichloroethane 50.0 54.8 ug/Kg 110 70 -130 1 20 1,2-Dichloroethane 50.0 49.6 ug/Kg 99 70 -130 1 20 1,1-Dichloroethene 50.0 54.0 ug/Kg 108 76 -122 5 20 cis-1,2-Dichloroethene 50.0 62.2 ug/Kg 124 70 -138 1 20 trans-1,2-Dichloroethene 50.0 46.4 ug/Kg 93 67 -130 2 20 1,2-Dichloropropane 50.0 55.4 ug/Kg 111 73 -127 1 20 cis-1,3-Dichloropropene 50.0 55.2 ug/Kg 110 68 -147 0 20 trans-1,3-Dichloropropene 50.0 55.8 ug/Kg 112 70 -136 0 20 Ethylbenzene 50.0 54.2 ug/Kg 108 80 -137 2 20 Hexachlorobutadiene 50.0 62.2 ug/Kg 124 70 -132 0 20 2-Hexanone 250 228 ug/Kg 91 60 -161 4 20 Isopropylbenzene 50.0 56.8 ug/Kg 114 88 -128 2 20 4-Isopropyltoluene 50.0 60.0 ug/Kg 120 70 -133 1 20 Methylene Chloride 50.0 56.2 ug/Kg 112 70 -134 3 20 4-Methyl-2-pentanone (MIBK)250 261 ug/Kg 104 60 -160 4 20 Naphthalene 50.0 59.8 ug/Kg 120 60 -147 4 20 N-Propylbenzene 50.0 55.8 ug/Kg 112 70 -130 3 20 Styrene 50.0 56.4 ug/Kg 113 70 -130 2 20 1,1,1,2-Tetrachloroethane 50.0 54.4 ug/Kg 109 70 -130 1 20 1,1,2,2-Tetrachloroethane 50.0 56.8 ug/Kg 114 70 -146 1 20 Tetrachloroethene 50.0 55.2 ug/Kg 110 70 -132 1 20 Toluene 50.0 54.6 ug/Kg 109 80 -128 0 20 1,2,3-Trichlorobenzene 50.0 56.6 ug/Kg 113 60 -140 2 20 1,2,4-Trichlorobenzene 50.0 58.0 ug/Kg 116 60 -140 0 20 1,1,1-Trichloroethane 50.0 55.0 ug/Kg 110 70 -130 2 20 1,1,2-Trichloroethane 50.0 56.0 ug/Kg 112 70 -130 0 20 Trichloroethene 50.0 55.8 ug/Kg 112 70 -133 1 20 Trichlorofluoromethane 50.0 46.8 ug/Kg 94 60 -140 5 20 1,2,3-Trichloropropane 50.0 56.2 ug/Kg 112 70 -146 2 20 1,1,2-Trichloro -1,2,2-trifluoroetha ne 50.0 62.0 ug/Kg 124 60 -140 5 20 1,2,4-Trimethylbenzene 50.0 55.4 ug/Kg 111 70 -130 1 20 1,3,5-Trimethylbenzene 50.0 57.0 ug/Kg 114 70 -131 3 20 Vinyl acetate 50.0 75.8 ug/Kg 152 38 -176 3 20 Vinyl chloride 50.0 46.8 ug/Kg 94 58 -125 5 20 m-Xylene & p-Xylene 100 110 ug/Kg 110 70 -146 2 20 o-Xylene 50.0 55.6 ug/Kg 111 70 -140 2 20 2,2-Dichloropropane 50.0 59.6 ug/Kg 119 70 -162 0 20 4-Bromofluorobenzene 45 -131 Surrogate 93 LCSD LCSD Qualifier Limits %Recovery 85 1,2-Dichloroethane-d4 (Surr)60 -140 95 Toluene-d8 (Surr)58 -140 TestAmerica San Francisco Page 15 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8260B/CA_LUFTMS - 8260B / C A LUFT MS (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110579/5-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110544 Prep Batch: 110579 Gasoline Range Organics (GRO) -C5-C12 1000 1010 ug/Kg 101 61 -128 0 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit 4-Bromofluorobenzene 45 -131 Surrogate 98 LCSD LCSD Qualifier Limits %Recovery 96 1,2-Dichloroethane-d4 (Surr)60 -140 99 Toluene-d8 (Surr)58 -140 Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) Client Sample ID: Method Blank Lab Sample ID: MB 720-110629/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 RL MDL Phenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-chloroethyl)ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Chlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,3-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,4-Dichlorobenzene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzyl alcohol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,2-Dichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Methylphenol, 3 & 4 ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 N-Nitrosodi-n-propylamine ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachloroethane ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Nitrobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Isophorone ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Nitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dimethylphenol ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-chloroethoxy)methane ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 1,2,4-Trichlorobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Naphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chloroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorobutadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chloro-3-methylphenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methylnaphthalene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorocyclopentadiene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4,6-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4,5-Trichlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Chloronaphthalene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Nitroaniline ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Dimethyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Acenaphthylene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 3-Nitroaniline ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Acenaphthene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dinitrophenol ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Nitrophenol TestAmerica San Francisco Page 16 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110629/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 RL MDL Dibenzofuran ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,4-Dinitrotoluene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2,6-Dinitrotoluene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Diethyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Chlorophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Fluorene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Nitroaniline ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 2-Methyl-4,6-dinitrophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 N-Nitrosodiphenylamine ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 4-Bromophenyl phenyl ether ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Hexachlorobenzene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Pentachlorophenol ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Phenanthrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Anthracene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Di-n-butyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Pyrene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Butyl benzyl phthalate ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 3,3'-Dichlorobenzidine ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[a]anthracene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Bis(2-ethylhexyl) phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Chrysene ND 0.17 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Di-n-octyl phthalate ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[b]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[a]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[k]fluoranthene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Indeno[1,2,3-cd]pyrene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzo[g,h,i]perylene ND 0.33 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Benzoic acid ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Azobenzene ND 0.066 mg/Kg 03/29/12 07:18 03/29/12 18:46 1 Dibenz(a,h)anthracene Nitrobenzene-d5 76 21 -98 03/29/12 18:46 1 MB MB Surrogate 03/29/12 07:18 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 83 03/29/12 07:18 03/29/12 18:46 1 2-Fluorobiphenyl 30 -112 80 03/29/12 07:18 03/29/12 18:46 1 Terphenyl-d14 32 -117 73 03/29/12 07:18 03/29/12 18:46 1 2-Fluorophenol 28 -98 76 03/29/12 07:18 03/29/12 18:46 1 Phenol-d5 23 -101 82 03/29/12 07:18 03/29/12 18:46 1 2,4,6-Tribromophenol 37 -114 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Phenol 1.64 1.34 mg/Kg 82 48 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Bis(2-chloroethyl)ether 1.64 1.49 mg/Kg 90 45 -115 2-Chlorophenol 1.64 1.28 mg/Kg 78 48 -115 TestAmerica San Francisco Page 17 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 1,3-Dichlorobenzene 1.64 1.24 mg/Kg 76 41 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 1,4-Dichlorobenzene 1.64 1.18 mg/Kg 72 40 -115 Benzyl alcohol 1.64 1.27 mg/Kg 77 54 -115 1,2-Dichlorobenzene 1.64 1.23 mg/Kg 75 44 -115 2-Methylphenol 1.64 1.30 mg/Kg 79 54 -115 Methylphenol, 3 & 4 3.29 2.11 mg/Kg 64 42 -115 N-Nitrosodi-n-propylamine 1.64 1.23 mg/Kg 75 46 -115 Hexachloroethane 1.64 1.19 mg/Kg 73 44 -115 Nitrobenzene 1.64 1.29 mg/Kg 79 48 -115 Isophorone 1.64 1.27 mg/Kg 77 54 -115 2-Nitrophenol 1.64 1.40 mg/Kg 85 48 -115 2,4-Dimethylphenol 1.64 1.28 mg/Kg 78 52 -115 Bis(2-chloroethoxy)methane 1.64 1.28 mg/Kg 78 46 -115 2,4-Dichlorophenol 1.64 1.37 mg/Kg 83 49 -100 1,2,4-Trichlorobenzene 1.64 1.29 mg/Kg 79 47 -115 Naphthalene 1.64 1.27 mg/Kg 77 44 -115 4-Chloroaniline 1.64 1.02 mg/Kg 62 30 -115 Hexachlorobutadiene 1.64 1.31 mg/Kg 80 44 -115 4-Chloro-3-methylphenol 1.64 1.45 mg/Kg 88 58 -115 2-Methylnaphthalene 1.64 1.29 mg/Kg 78 49 -115 Hexachlorocyclopentadiene 1.64 1.48 mg/Kg 90 42 -132 2,4,6-Trichlorophenol 1.64 1.40 mg/Kg 85 45 -115 2,4,5-Trichlorophenol 1.64 1.42 mg/Kg 86 48 -115 2-Chloronaphthalene 1.64 1.34 mg/Kg 82 52 -115 2-Nitroaniline 1.64 1.60 mg/Kg 97 54 -115 Dimethyl phthalate 1.64 1.45 mg/Kg 88 64 -119 Acenaphthylene 1.64 1.45 mg/Kg 88 61 -129 3-Nitroaniline 1.64 1.23 mg/Kg 75 50 -115 Acenaphthene 1.64 1.35 mg/Kg 82 50 -115 2,4-Dinitrophenol 1.64 0.753 mg/Kg 46 21 -115 4-Nitrophenol 1.64 1.67 mg/Kg 101 54 -125 Dibenzofuran 1.64 1.39 mg/Kg 85 55 -115 2,4-Dinitrotoluene 1.64 1.67 mg/Kg 101 57 -115 2,6-Dinitrotoluene 1.64 1.57 mg/Kg 96 54 -119 Diethyl phthalate 1.64 1.54 mg/Kg 93 49 -117 4-Chlorophenyl phenyl ether 1.64 1.44 mg/Kg 88 57 -115 Fluorene 1.64 1.39 mg/Kg 85 54 -115 4-Nitroaniline 1.64 1.54 mg/Kg 94 59 -115 2-Methyl-4,6-dinitrophenol 1.64 1.53 mg/Kg 93 48 -115 N-Nitrosodiphenylamine 1.64 1.45 mg/Kg 88 56 -115 4-Bromophenyl phenyl ether 1.64 1.48 mg/Kg 90 53 -115 Hexachlorobenzene 1.64 1.52 mg/Kg 92 55 -115 Pentachlorophenol 1.64 1.45 mg/Kg 88 35 -115 Phenanthrene 1.64 1.46 mg/Kg 89 54 -115 Anthracene 1.64 1.50 mg/Kg 91 55 -115 Di-n-butyl phthalate 1.64 1.47 mg/Kg 90 55 -115 Fluoranthene 1.64 1.58 mg/Kg 96 54 -115 Pyrene 1.64 1.43 mg/Kg 87 48 -115 TestAmerica San Francisco Page 18 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110629/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Butyl benzyl phthalate 1.64 1.55 mg/Kg 94 53 -115 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits 3,3'-Dichlorobenzidine 1.64 1.19 mg/Kg 73 42 -115 Benzo[a]anthracene 1.64 1.58 mg/Kg 96 55 -115 Bis(2-ethylhexyl) phthalate 1.64 1.50 mg/Kg 91 53 -115 Chrysene 1.64 1.51 mg/Kg 92 58 -115 Di-n-octyl phthalate 1.64 1.68 mg/Kg 102 53 -115 Benzo[b]fluoranthene 1.64 1.55 mg/Kg 94 56 -115 Benzo[a]pyrene 1.64 1.47 mg/Kg 90 55 -115 Benzo[k]fluoranthene 1.64 1.44 mg/Kg 88 57 -115 Indeno[1,2,3-cd]pyrene 1.64 1.57 mg/Kg 96 56 -115 Benzo[g,h,i]perylene 1.64 1.61 mg/Kg 98 56 -115 Benzoic acid 1.64 0.753 mg/Kg 46 10 -115 Azobenzene 1.64 1.37 mg/Kg 83 52 -115 Dibenz(a,h)anthracene 1.64 1.58 mg/Kg 96 58 -115 Nitrobenzene-d5 21 -98 Surrogate 79 LCS LCS Qualifier Limits %Recovery 80 2-Fluorobiphenyl 30 -112 92 Terphenyl-d14 32 -117 78 2-Fluorophenol 28 -98 80 Phenol-d5 23 -101 95 2,4,6-Tribromophenol 37 -114 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Phenol 1.67 1.34 mg/Kg 80 48 -115 0 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Bis(2-chloroethyl)ether 1.67 1.43 mg/Kg 86 45 -115 4 35 2-Chlorophenol 1.67 1.27 mg/Kg 76 48 -115 1 35 1,3-Dichlorobenzene 1.67 1.17 mg/Kg 70 41 -115 6 35 1,4-Dichlorobenzene 1.67 1.21 mg/Kg 73 40 -115 2 35 Benzyl alcohol 1.67 1.27 mg/Kg 76 54 -115 0 35 1,2-Dichlorobenzene 1.67 1.21 mg/Kg 73 44 -115 2 35 2-Methylphenol 1.67 1.32 mg/Kg 79 54 -115 1 35 Methylphenol, 3 & 4 3.33 2.14 mg/Kg 64 42 -115 2 35 N-Nitrosodi-n-propylamine 1.67 1.23 mg/Kg 74 46 -115 1 35 Hexachloroethane 1.67 1.17 mg/Kg 70 44 -115 2 35 Nitrobenzene 1.67 1.27 mg/Kg 76 48 -115 2 35 Isophorone 1.67 1.29 mg/Kg 77 54 -115 2 35 2-Nitrophenol 1.67 1.40 mg/Kg 84 48 -115 0 35 2,4-Dimethylphenol 1.67 1.29 mg/Kg 77 52 -115 1 35 Bis(2-chloroethoxy)methane 1.67 1.28 mg/Kg 77 46 -115 0 35 2,4-Dichlorophenol 1.67 1.40 mg/Kg 84 49 -100 2 35 1,2,4-Trichlorobenzene 1.67 1.29 mg/Kg 77 47 -115 1 35 Naphthalene 1.67 1.26 mg/Kg 76 44 -115 1 35 4-Chloroaniline 1.67 1.03 mg/Kg 62 30 -115 1 35 TestAmerica San Francisco Page 19 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 Hexachlorobutadiene 1.67 1.29 mg/Kg 77 44 -115 2 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit 4-Chloro-3-methylphenol 1.67 1.49 mg/Kg 89 58 -115 3 35 2-Methylnaphthalene 1.67 1.30 mg/Kg 78 49 -115 1 35 Hexachlorocyclopentadiene 1.67 1.49 mg/Kg 89 42 -132 0 35 2,4,6-Trichlorophenol 1.67 1.41 mg/Kg 85 45 -115 1 35 2,4,5-Trichlorophenol 1.67 1.45 mg/Kg 87 48 -115 2 35 2-Chloronaphthalene 1.67 1.39 mg/Kg 83 52 -115 3 35 2-Nitroaniline 1.67 1.62 mg/Kg 97 54 -115 1 35 Dimethyl phthalate 1.67 1.49 mg/Kg 90 64 -119 3 35 Acenaphthylene 1.67 1.49 mg/Kg 89 61 -129 2 35 3-Nitroaniline 1.67 1.24 mg/Kg 75 50 -115 1 35 Acenaphthene 1.67 1.39 mg/Kg 83 50 -115 3 35 2,4-Dinitrophenol 1.67 0.553 mg/Kg 33 21 -115 31 35 4-Nitrophenol 1.67 1.70 mg/Kg 102 54 -125 2 35 Dibenzofuran 1.67 1.42 mg/Kg 85 55 -115 2 35 2,4-Dinitrotoluene 1.67 1.68 mg/Kg 101 57 -115 1 35 2,6-Dinitrotoluene 1.67 1.60 mg/Kg 96 54 -119 2 35 Diethyl phthalate 1.67 1.58 mg/Kg 95 49 -117 3 35 4-Chlorophenyl phenyl ether 1.67 1.47 mg/Kg 88 57 -115 2 35 Fluorene 1.67 1.44 mg/Kg 86 54 -115 3 35 4-Nitroaniline 1.67 1.57 mg/Kg 94 59 -115 2 35 2-Methyl-4,6-dinitrophenol 1.67 1.42 mg/Kg 85 48 -115 7 35 N-Nitrosodiphenylamine 1.67 1.47 mg/Kg 88 56 -115 1 35 4-Bromophenyl phenyl ether 1.67 1.49 mg/Kg 90 53 -115 1 35 Hexachlorobenzene 1.67 1.53 mg/Kg 92 55 -115 1 35 Pentachlorophenol 1.67 1.41 mg/Kg 85 35 -115 3 35 Phenanthrene 1.67 1.43 mg/Kg 86 54 -115 2 35 Anthracene 1.67 1.55 mg/Kg 93 55 -115 3 35 Di-n-butyl phthalate 1.67 1.47 mg/Kg 88 55 -115 1 35 Fluoranthene 1.67 1.59 mg/Kg 96 54 -115 1 35 Pyrene 1.67 1.48 mg/Kg 89 48 -115 3 35 Butyl benzyl phthalate 1.67 1.60 mg/Kg 96 53 -115 3 35 3,3'-Dichlorobenzidine 1.67 1.22 mg/Kg 73 42 -115 2 35 Benzo[a]anthracene 1.67 1.60 mg/Kg 96 55 -115 1 35 Bis(2-ethylhexyl) phthalate 1.67 1.52 mg/Kg 91 53 -115 1 35 Chrysene 1.67 1.57 mg/Kg 94 58 -115 4 35 Di-n-octyl phthalate 1.67 1.71 mg/Kg 103 53 -115 2 35 Benzo[b]fluoranthene 1.67 1.47 mg/Kg 88 56 -115 6 35 Benzo[a]pyrene 1.67 1.51 mg/Kg 91 55 -115 2 35 Benzo[k]fluoranthene 1.67 1.64 mg/Kg 99 57 -115 13 35 Indeno[1,2,3-cd]pyrene 1.67 1.62 mg/Kg 97 56 -115 3 35 Benzo[g,h,i]perylene 1.67 1.66 mg/Kg 100 56 -115 3 35 Benzoic acid 1.67 0.516 *mg/Kg 31 10 -115 37 35 Azobenzene 1.67 1.37 mg/Kg 82 52 -115 0 35 Dibenz(a,h)anthracene 1.67 1.64 mg/Kg 98 58 -115 3 35 Nitrobenzene-d5 21 -98 Surrogate 78 LCSD LCSD Qualifier Limits %Recovery TestAmerica San Francisco Page 20 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8270C - Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS) (Continued) Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110629/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110647 Prep Batch: 110629 2-Fluorobiphenyl 30 -112 Surrogate 81 LCSD LCSD Qualifier Limits %Recovery 93 Terphenyl-d14 32 -117 75 2-Fluorophenol 28 -98 78 Phenol-d5 23 -101 95 2,4,6-Tribromophenol 37 -114 Method: 8015B - Diesel Range Organics (DRO) (GC) Client Sample ID: Method Blank Lab Sample ID: MB 720-110695/1-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110717 Prep Batch: 110695 RL MDL Diesel Range Organics [C10-C28]ND 0.99 mg/Kg 03/29/12 17:18 03/30/12 11:18 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 50 mg/Kg 03/29/12 17:18 03/30/12 11:18 1 Motor Oil Range Organics [C24-C36] Capric Acid (Surr)0.001 0 -1 03/30/12 11:18 1 MB MB Surrogate 03/29/12 17:18 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 86 03/29/12 17:18 03/30/12 11:18 1 p-Terphenyl 38 -148 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110695/2-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110717 Prep Batch: 110695 Diesel Range Organics [C10-C28] 82.7 85.5 mg/Kg 103 36 -112 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits p-Terphenyl 38 -148 Surrogate 126 LCS LCS Qualifier Limits %Recovery Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110695/3-A Matrix: Solid Prep Type: Silica Gel Cleanup Analysis Batch: 110717 Prep Batch: 110695 Diesel Range Organics [C10-C28] 82.2 75.8 mg/Kg 92 36 -112 12 35 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit p-Terphenyl 38 -148 Surrogate 114 LCSD LCSD Qualifier Limits %Recovery TestAmerica San Francisco Page 21 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8081 A - Organochlorine Pesticides (GC) Client Sample ID: Method Blank Lab Sample ID: MB 720-110573/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 RL MDL Aldrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Dieldrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin aldehyde ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endrin ketone ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Heptachlor ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Heptachlor epoxide ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDT ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDE ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 4,4'-DDD ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan I ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan II ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 alpha-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 beta-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 gamma-BHC (Lindane) ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 delta-BHC ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Endosulfan sulfate ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Methoxychlor ND 39 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Toxaphene ND 39 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 Chlordane (technical) ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 alpha-Chlordane ND 1.9 ug/Kg 03/28/12 13:17 03/29/12 18:02 1 gamma-Chlordane Tetrachloro-m-xylene 72 34 -110 03/29/12 18:02 1 MB MB Surrogate 03/28/12 13:17 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 90 03/28/12 13:17 03/29/12 18:02 1 DCB Decachlorobiphenyl 21 -136 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110573/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Aldrin 16.4 11.2 ug/Kg 68 54 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Dieldrin 16.4 14.0 ug/Kg 86 59 -120 Endrin aldehyde 16.4 14.8 ug/Kg 90 40 -120 Endrin 16.4 14.2 ug/Kg 87 53 -120 Endrin ketone 16.4 15.9 ug/Kg 97 40 -120 Heptachlor 16.4 11.9 ug/Kg 73 54 -120 Heptachlor epoxide 16.4 13.7 ug/Kg 84 40 -120 4,4'-DDT 16.4 13.3 ug/Kg 81 51 -120 4,4'-DDE 16.4 14.3 ug/Kg 87 40 -120 4,4'-DDD 16.4 15.1 ug/Kg 92 40 -120 Endosulfan I 16.4 14.0 ug/Kg 86 40 -120 Endosulfan II 16.4 15.1 ug/Kg 92 40 -120 alpha-BHC 16.4 10.6 ug/Kg 65 40 -120 beta-BHC 16.4 14.5 ug/Kg 89 40 -120 gamma-BHC (Lindane)16.4 11.9 ug/Kg 73 50 -96 delta-BHC 16.4 12.8 ug/Kg 78 40 -120 Endosulfan sulfate 16.4 15.7 ug/Kg 96 40 -120 TestAmerica San Francisco Page 22 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8081 A - Organochlorine Pesticides (GC) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110573/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Methoxychlor 16.4 18.9 ug/Kg 115 40 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits alpha-Chlordane 16.4 14.2 ug/Kg 87 40 -120 gamma-Chlordane 16.4 14.0 ug/Kg 86 40 -120 Tetrachloro-m-xylene 34 -110 Surrogate 69 LCS LCS Qualifier Limits %Recovery 87 DCB Decachlorobiphenyl 21 -136 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110573/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110658 Prep Batch: 110573 Aldrin 16.4 12.7 ug/Kg 77 54 -120 12 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Dieldrin 16.4 15.2 ug/Kg 92 59 -120 8 20 Endrin aldehyde 16.4 16.3 ug/Kg 99 40 -120 9 20 Endrin 16.4 15.4 ug/Kg 94 53 -120 8 20 Endrin ketone 16.4 17.5 ug/Kg 107 40 -120 10 20 Heptachlor 16.4 13.3 ug/Kg 81 54 -120 11 20 Heptachlor epoxide 16.4 14.9 ug/Kg 91 40 -120 8 20 4,4'-DDT 16.4 14.3 ug/Kg 87 51 -120 8 20 4,4'-DDE 16.4 15.5 ug/Kg 94 40 -120 8 20 4,4'-DDD 16.4 16.3 ug/Kg 99 40 -120 8 20 Endosulfan I 16.4 15.3 ug/Kg 93 40 -120 9 20 Endosulfan II 16.4 16.3 ug/Kg 99 40 -120 8 35 alpha-BHC 16.4 11.8 ug/Kg 72 40 -120 10 20 beta-BHC 16.4 15.6 ug/Kg 95 40 -120 7 20 gamma-BHC (Lindane)16.4 13.2 ug/Kg 80 50 -96 10 20 delta-BHC 16.4 13.8 ug/Kg 84 40 -120 8 20 Endosulfan sulfate 16.4 17.0 ug/Kg 103 40 -120 8 20 Methoxychlor 16.4 18.7 ug/Kg 114 40 -120 1 20 alpha-Chlordane 16.4 15.4 ug/Kg 94 40 -120 8 20 gamma-Chlordane 16.4 15.2 ug/Kg 92 40 -120 8 20 Tetrachloro-m-xylene 34 -110 Surrogate 76 LCSD LCSD Qualifier Limits %Recovery 96 DCB Decachlorobiphenyl 21 -136 Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography Client Sample ID: Method Blank Lab Sample ID: MB 720-110574/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 RL MDL PCB-1016 ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 PCB-1221 ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 PCB-1232 ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 PCB-1242 TestAmerica San Francisco Page 23 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography (Continued) Client Sample ID: Method Blank Lab Sample ID: MB 720-110574/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 RL MDL PCB-1248 ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 PCB-1254 ND 48 ug/Kg 03/28/12 13:25 03/30/12 18:46 1 PCB-1260 Tetrachloro-m-xylene 69 32 -112 03/30/12 18:46 1 MB MB Surrogate 03/28/12 13:25 Dil Fac Prepared Analyzed Qualifier Limits %Recovery 87 03/28/12 13:25 03/30/12 18:46 1 DCB Decachlorobiphenyl 2 -122 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110574/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 PCB-1016 133 100 ug/Kg 75 65 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits PCB-1260 133 109 ug/Kg 83 65 -120 Tetrachloro-m-xylene 32 -112 Surrogate 66 LCS LCS Qualifier Limits %Recovery 81 DCB Decachlorobiphenyl 2 -122 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110574/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 PCB-1016 133 104 ug/Kg 78 65 -120 4 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit PCB-1260 133 113 ug/Kg 85 65 -120 3 20 Tetrachloro-m-xylene 32 -112 Surrogate 72 LCSD LCSD Qualifier Limits %Recovery 83 DCB Decachlorobiphenyl 2 -122 Client Sample ID: SP-1 (2')Lab Sample ID: 720-4 1196-1 MS Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 PCB-1016 ND 130 102 ug/Kg 79 69 -120 Analyte MS MS D Unit Result Qualifier %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits PCB-1260 ND 130 111 ug/Kg 85 73 -114 Tetrachloro-m-xylene 32 -112 Surrogate 70 MS MS Qualifier Limits %Recovery 78 DCB Decachlorobiphenyl 2 -122 TestAmerica San Francisco Page 24 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography (Continued) Client Sample ID: SP-1 (2')Lab Sample ID: 720-4 1196-1 MSD Matrix: Solid Prep Type: Total/NA Analysis Batch: 110763 Prep Batch: 110574 PCB-1016 ND 132 102 ug/Kg 77 69 -120 1 20 Analyte RPD MSD MSD D Unit Result Qualifier RPD %Rec Spike Added Sample Result Sample Qualifier %Rec. Limits Limit PCB-1260 ND 132 109 ug/Kg 82 73 -114 2 20 Tetrachloro-m-xylene 32 -112 Surrogate 70 MSD MSD Qualifier Limits %Recovery 76 DCB Decachlorobiphenyl 2 -122 Method: 7199 - Chromium, Hexavalent (IC) Client Sample ID: Method Blank Lab Sample ID: MB 440-16480/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 16630 Prep Batch: 16480 RL MDL Cr (VI)ND 2.0 mg/Kg 03/29/12 21:15 03/30/12 15:58 10 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier Client Sample ID: Lab Control Sample Lab Sample ID: LCS 440-16480/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 16630 Prep Batch: 16480 Cr (VI)16.0 13.1 mg/Kg 82 65 -110 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Method: 6010B - Metals (ICP) Client Sample ID: Method Blank Lab Sample ID: MB 720-110657/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110799 Prep Batch: 110657 RL MDL Antimony ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 1.0 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Arsenic ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Barium ND 0.10 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Beryllium ND 0.13 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Cadmium ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Chromium ND 0.20 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Cobalt ND 1.5 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Copper ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Lead ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Molybdenum ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Nickel ND 1.0 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Selenium ND 0.25 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Silver ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Thallium ND 0.50 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Vanadium ND 1.5 mg/Kg 03/29/12 13:08 03/30/12 18:55 1 Zinc TestAmerica San Francisco Page 25 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110657/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110799 Prep Batch: 110657 Antimony 50.0 47.3 mg/Kg 95 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 50.0 47.9 mg/Kg 96 80 -120 Barium 50.0 50.0 mg/Kg 100 80 -120 Beryllium 50.0 48.4 mg/Kg 97 80 -120 Cadmium 50.0 49.0 mg/Kg 98 80 -120 Chromium 50.0 48.9 mg/Kg 98 80 -120 Cobalt 50.0 49.6 mg/Kg 99 80 -120 Copper 50.0 49.4 mg/Kg 99 80 -120 Lead 50.0 49.7 mg/Kg 99 80 -120 Molybdenum 50.0 49.2 mg/Kg 98 80 -120 Nickel 50.0 49.4 mg/Kg 99 80 -120 Selenium 50.0 47.5 mg/Kg 95 80 -120 Silver 25.0 24.2 mg/Kg 97 80 -120 Thallium 50.0 49.5 mg/Kg 99 80 -120 Vanadium 50.0 48.7 mg/Kg 97 80 -120 Zinc 50.0 48.8 mg/Kg 98 80 -120 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110657/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110799 Prep Batch: 110657 Antimony 50.0 47.5 mg/Kg 95 80 -120 0 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Arsenic 50.0 48.6 mg/Kg 97 80 -120 1 20 Barium 50.0 50.7 mg/Kg 101 80 -120 1 20 Beryllium 50.0 49.0 mg/Kg 98 80 -120 1 20 Cadmium 50.0 49.1 mg/Kg 98 80 -120 0 20 Chromium 50.0 49.5 mg/Kg 99 80 -120 1 20 Cobalt 50.0 50.1 mg/Kg 100 80 -120 1 20 Copper 50.0 49.9 mg/Kg 100 80 -120 1 20 Lead 50.0 50.0 mg/Kg 100 80 -120 1 20 Molybdenum 50.0 49.7 mg/Kg 99 80 -120 1 20 Nickel 50.0 49.7 mg/Kg 99 80 -120 1 20 Selenium 50.0 48.0 mg/Kg 96 80 -120 1 20 Silver 25.0 24.3 mg/Kg 97 80 -120 1 20 Thallium 50.0 49.9 mg/Kg 100 80 -120 1 20 Vanadium 50.0 49.4 mg/Kg 99 80 -120 2 20 Zinc 50.0 49.3 mg/Kg 99 80 -120 1 20 Client Sample ID: Lab Control Sample Lab Sample ID: LCSSRM 720-110657/25-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110799 Prep Batch: 110657 Antimony 105 52.3 mg/Kg 50 11 -101 Analyte LCSSRM LCSSRM D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 79.4 75.8 mg/Kg 95 69 -119 Beryllium 304 301 mg/Kg 99 56 -102 Cadmium 48.3 41.4 mg/Kg 86 67 -118 Chromium 171 164 mg/Kg 96 67 -121 Cobalt 59.2 56.7 mg/Kg 96 64 -133 TestAmerica San Francisco Page 26 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCSSRM 720-110657/25-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110799 Prep Batch: 110657 Copper 327 316 mg/Kg 96 68 -126 Analyte LCSSRM LCSSRM D Unit Result Qualifier %Rec Spike Added %Rec. Limits Lead 181 161 mg/Kg 89 62 -113 Molybdenum 156 144 mg/Kg 92 62 -128 Nickel 76.0 67.8 mg/Kg 89 65 -117 Selenium 76.9 69.8 mg/Kg 91 63 -126 Silver 29.1 27.1 mg/Kg 93 51 -130 Thallium 192 171 mg/Kg 89 64 -124 Vanadium 213 216 mg/Kg 101 67 -123 Zinc 256 240 mg/Kg 94 62 -110 Client Sample ID: Lab Control Sample Lab Sample ID: LCSSRM 720-110657/25-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110815 Prep Batch: 110657 Barium 391 357 mg/Kg 91 61 -117 Analyte LCSSRM LCSSRM D Unit Result Qualifier %Rec Spike Added %Rec. Limits Client Sample ID: Method Blank Lab Sample ID: MB 720-110831/1-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110878 Prep Batch: 110831 RL MDL Antimony ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Arsenic ND 0.0050 mg/L 04/02/12 08:26 04/02/12 16:56 1 Barium ND 0.0020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Beryllium ND 0.0020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Cadmium ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Chromium ND 0.0020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Cobalt ND 0.020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Copper ND 0.0050 mg/L 04/02/12 08:26 04/02/12 16:56 1 Lead ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Molybdenum ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Nickel ND 0.020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Selenium ND 0.0050 mg/L 04/02/12 08:26 04/02/12 16:56 1 Silver ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Thallium ND 0.010 mg/L 04/02/12 08:26 04/02/12 16:56 1 Vanadium ND 0.020 mg/L 04/02/12 08:26 04/02/12 16:56 1 Zinc Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110831/2-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110878 Prep Batch: 110831 Antimony 1.00 1.02 mg/L 102 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Arsenic 1.00 1.02 mg/L 102 80 -120 Barium 1.00 1.05 mg/L 105 80 -120 Beryllium 1.00 1.04 mg/L 104 80 -120 Cadmium 1.00 1.03 mg/L 103 80 -120 Chromium 1.00 1.04 mg/L 104 80 -120 TestAmerica San Francisco Page 27 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110831/2-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110878 Prep Batch: 110831 Cobalt 1.00 1.05 mg/L 105 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Copper 1.00 1.03 mg/L 103 80 -120 Lead 1.00 1.05 mg/L 105 80 -120 Molybdenum 1.00 1.02 mg/L 102 80 -120 Nickel 1.00 1.05 mg/L 105 80 -120 Selenium 1.00 1.03 mg/L 103 80 -120 Silver 0.500 0.516 mg/L 103 80 -120 Thallium 1.00 1.05 mg/L 105 80 -120 Vanadium 1.00 1.03 mg/L 103 80 -120 Zinc 1.00 1.04 mg/L 104 80 -120 Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110831/3-A Matrix: Solid Prep Type: Total Recoverable Analysis Batch: 110878 Prep Batch: 110831 Antimony 1.00 1.03 mg/L 103 80 -120 1 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit Arsenic 1.00 1.04 mg/L 104 80 -120 1 20 Barium 1.00 1.03 mg/L 103 80 -120 2 20 Beryllium 1.00 1.02 mg/L 102 80 -120 1 20 Cadmium 1.00 1.04 mg/L 104 80 -120 0 20 Chromium 1.00 1.03 mg/L 103 80 -120 1 20 Cobalt 1.00 1.05 mg/L 105 80 -120 1 20 Copper 1.00 1.03 mg/L 103 80 -120 1 20 Lead 1.00 1.05 mg/L 105 80 -120 0 20 Molybdenum 1.00 1.03 mg/L 103 80 -120 1 20 Nickel 1.00 1.05 mg/L 105 80 -120 0 20 Selenium 1.00 1.04 mg/L 104 80 -120 1 20 Silver 0.500 0.516 mg/L 103 80 -120 0 20 Thallium 1.00 1.05 mg/L 105 80 -120 0 20 Vanadium 1.00 1.01 mg/L 101 80 -120 1 20 Zinc 1.00 1.05 mg/L 105 80 -120 1 20 Client Sample ID: Method Blank Lab Sample ID: LB4 720-110790/1-B LB4 Matrix: Solid Prep Type: STLC Citrate Analysis Batch: 110886 Prep Batch: 110831 RL MDL Antimony ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 LB4 LB4 Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Arsenic 0.273 0.13 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Barium ND 0.050 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Beryllium ND 0.050 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Cadmium ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Chromium ND 0.050 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Cobalt ND 0.50 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Copper ND 0.13 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Lead ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Molybdenum ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Nickel ND 0.50 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Selenium TestAmerica San Francisco Page 28 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method: 6010B - Metals (ICP) (Continued) Client Sample ID: Method Blank Lab Sample ID: LB4 720-110790/1-B LB4 Matrix: Solid Prep Type: STLC Citrate Analysis Batch: 110886 Prep Batch: 110831 RL MDL Silver ND 0.13 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 LB4 LB4 Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Thallium ND 0.25 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Vanadium ND 0.50 mg/L 04/02/12 08:26 04/02/12 18:19 2.5 Zinc Method: 7471 A - Mercury (CVAA) Client Sample ID: Method Blank Lab Sample ID: MB 720-110613/1-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 RL MDL Mercury ND 0.010 mg/Kg 03/28/12 18:52 03/29/12 20:32 1 MB MB Analyte Dil Fac Analyzed Prepared D Unit Result Qualifier Client Sample ID: Lab Control Sample Lab Sample ID: LCS 720-110613/2-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 Mercury 0.833 0.817 mg/Kg 98 80 -120 Analyte LCS LCS D Unit Result Qualifier %Rec Spike Added %Rec. Limits Client Sample ID: Lab Control Sample Dup Lab Sample ID: LCSD 720-110613/3-A Matrix: Solid Prep Type: Total/NA Analysis Batch: 110710 Prep Batch: 110613 Mercury 0.833 0.815 mg/Kg 98 80 -120 0 20 Analyte RPD LCSD LCSD D Unit Result Qualifier RPD %Rec Spike Added %Rec. Limits Limit TestAmerica San Francisco Page 29 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby GC/MS VOA Analysis Batch: 110544 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8260B/CA_LUFT MS 110579 720-4 1196-1 SP-1 (2')Total/NA Solid 8260B/CA_LUFT MS 110579 LCS 720-110579/2-A Lab Control Sample Total/NA Solid 8260B/CA_LUFT MS 110579 LCS 720-110579/4-A Lab Control Sample Total/NA Solid 8260B/CA_LUFT MS 110579 LCSD 720-110579/3-A Lab Control Sample Dup Total/NA Solid 8260B/CA_LUFT MS 110579 LCSD 720-110579/5-A Lab Control Sample Dup Total/NA Solid 8260B/CA_LUFT MS 110579 MB 720-110579/1-A Method Blank Total/NA Prep Batch: 110579 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 5035 720-4 1196-1 SP-1 (2')Total/NA Solid 5035 LCS 720-110579/2-A Lab Control Sample Total/NA Solid 5035 LCS 720-110579/4-A Lab Control Sample Total/NA Solid 5035 LCSD 720-110579/3-A Lab Control Sample Dup Total/NA Solid 5035 LCSD 720-110579/5-A Lab Control Sample Dup Total/NA Solid 5035 MB 720-110579/1-A Method Blank Total/NA GC/MS Semi VOA Prep Batch: 110629 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1196-1 SP-1 (2')Total/NA Solid 3546 LCS 720-110629/2-A Lab Control Sample Total/NA Solid 3546 LCSD 720-110629/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110629/1-A Method Blank Total/NA Analysis Batch: 110647 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8270C 110629 720-4 1196-1 SP-1 (2')Total/NA Solid 8270C 110629 LCS 720-110629/2-A Lab Control Sample Total/NA Solid 8270C 110629 LCSD 720-110629/3-A Lab Control Sample Dup Total/NA Solid 8270C 110629 MB 720-110629/1-A Method Blank Total/NA GC Semi VOA Prep Batch: 110573 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1196-1 SP-1 (2')Total/NA Solid 3546 LCS 720-110573/2-A Lab Control Sample Total/NA Solid 3546 LCSD 720-110573/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110573/1-A Method Blank Total/NA Prep Batch: 110574 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1196-1 SP-1 (2')Total/NA Solid 3546 720-4 1196-1 MS SP-1 (2')Total/NA Solid 3546 720-4 1196-1 MSD SP-1 (2')Total/NA Solid 3546 LCS 720-110574/2-A Lab Control Sample Total/NA TestAmerica San Francisco Page 30 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby GC Semi VO A (Continued) Prep Batch: 110574 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 LCSD 720-110574/3-A Lab Control Sample Dup Total/NA Solid 3546 MB 720-110574/1-A Method Blank Total/NA Analysis Batch: 110658 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8081A 110573 LCS 720-110573/2-A Lab Control Sample Total/NA Solid 8081A 110573 LCSD 720-110573/3-A Lab Control Sample Dup Total/NA Solid 8081A 110573 MB 720-110573/1-A Method Blank Total/NA Prep Batch: 110695 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3546 720-4 1196-1 SP-1 (2')Silica Gel Cleanup Solid 3546 LCS 720-110695/2-A Lab Control Sample Silica Gel Cleanup Solid 3546 LCSD 720-110695/3-A Lab Control Sample Dup Silica Gel Cleanup Solid 3546 MB 720-110695/1-A Method Blank Silica Gel Cleanup Analysis Batch: 110717 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8015B 110695 720-4 1196-1 SP-1 (2')Silica Gel Cleanup Solid 8015B 110695 LCS 720-110695/2-A Lab Control Sample Silica Gel Cleanup Solid 8015B 110695 LCSD 720-110695/3-A Lab Control Sample Dup Silica Gel Cleanup Solid 8015B 110695 MB 720-110695/1-A Method Blank Silica Gel Cleanup Analysis Batch: 110763 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8082 110574 720-4 1196-1 SP-1 (2')Total/NA Solid 8082 110574 720-4 1196-1 MS SP-1 (2')Total/NA Solid 8082 110574 720-4 1196-1 MSD SP-1 (2')Total/NA Solid 8082 110574 LCS 720-110574/2-A Lab Control Sample Total/NA Solid 8082 110574 LCSD 720-110574/3-A Lab Control Sample Dup Total/NA Solid 8082 110574 MB 720-110574/1-A Method Blank Total/NA Analysis Batch: 110816 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 8081A 110573 720-4 1196-1 SP-1 (2')Total/NA HPLC/IC Prep Batch: 16480 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3060A 720-4 1196-1 SP-1 (2')Total/NA Solid 3060A LCS 440-16480/2-A Lab Control Sample Total/NA Solid 3060A MB 440-16480/1-A Method Blank Total/NA Analysis Batch: 16630 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7199 16480 720-4 1196-1 SP-1 (2')Total/NA Solid 7199 16480 LCS 440-16480/2-A Lab Control Sample Total/NA Solid 7199 16480 MB 440-16480/1-A Method Blank Total/NA TestAmerica San Francisco Page 31 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Metals Prep Batch: 110613 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471A 720-4 1196-1 SP-1 (2')Total/NA Solid 7471A LCS 720-110613/2-A Lab Control Sample Total/NA Solid 7471A LCSD 720-110613/3-A Lab Control Sample Dup Total/NA Solid 7471A MB 720-110613/1-A Method Blank Total/NA Prep Batch: 110657 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3050B 720-4 1196-1 SP-1 (2')Total/NA Solid 3050B LCS 720-110657/2-A Lab Control Sample Total/NA Solid 3050B LCSD 720-110657/3-A Lab Control Sample Dup Total/NA Solid 3050B LCSSRM 720-110657/25-A Lab Control Sample Total/NA Solid 3050B MB 720-110657/1-A Method Blank Total/NA Analysis Batch: 110710 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 7471A 110613 720-4 1196-1 SP-1 (2')Total/NA Solid 7471A 110613 LCS 720-110613/2-A Lab Control Sample Total/NA Solid 7471A 110613 LCSD 720-110613/3-A Lab Control Sample Dup Total/NA Solid 7471A 110613 MB 720-110613/1-A Method Blank Total/NA Leach Batch: 110790 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid C A WET Citrate 720-4 1196-1 SP-1 (2')STLC Citrate Solid C A WET Citrate LB4 720-110790/1-B LB4 Method Blank STLC Citrate Analysis Batch: 110799 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110657 720-4 1196-1 SP-1 (2')Total/NA Solid 6010B 110657 LCS 720-110657/2-A Lab Control Sample Total/NA Solid 6010B 110657 LCSD 720-110657/3-A Lab Control Sample Dup Total/NA Solid 6010B 110657 LCSSRM 720-110657/25-A Lab Control Sample Total/NA Solid 6010B 110657 MB 720-110657/1-A Method Blank Total/NA Analysis Batch: 110815 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110657 720-4 1196-1 SP-1 (2')Total/NA Solid 6010B 110657 LCSSRM 720-110657/25-A Lab Control Sample Total/NA Prep Batch: 110831 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 3005A 110790 720-4 1196-1 SP-1 (2')STLC Citrate Solid 3005A 110790 LB4 720-110790/1-B LB4 Method Blank STLC Citrate Solid 3005A LCS 720-110831/2-A Lab Control Sample Total Recoverable Solid 3005A LCSD 720-110831/3-A Lab Control Sample Dup Total Recoverable Solid 3005A MB 720-110831/1-A Method Blank Total Recoverable Analysis Batch: 110878 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110831 LCS 720-110831/2-A Lab Control Sample Total Recoverable Solid 6010B 110831 LCSD 720-110831/3-A Lab Control Sample Dup Total Recoverable Solid 6010B 110831 MB 720-110831/1-A Method Blank Total Recoverable TestAmerica San Francisco Page 32 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Metals (Continued) Analysis Batch: 110886 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Solid 6010B 110831 720-4 1196-1 SP-1 (2')STLC Citrate Solid 6010B 110831 LB4 720-110790/1-B LB4 Method Blank STLC Citrate TestAmerica San Francisco Page 33 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: Cornerstone Earth Group TestAmerica Job ID: 720-41196-1 Project/Site: Building 12 Lobby Client Sample ID: SP-1 (2')Lab Sample ID: 720-4 1196-1 Matrix: Solid Date Collected: 03/27/12 15:00 Date Received: 03/27/12 18:55 Prep 5035 03/28/12 07:30 AC 110579 TAL SF Type Batch Batch Method Prep Type Lab Analyst Run Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 8260B/CA_LUFTMS 1 110544 03/28/12 15:41 LL TAL SF Total/NA Prep 3546 110629 03/29/12 07:18 NP TAL SF Total/NA Analysis 8270C 1 110647 03/29/12 22:45 ML TAL SF Total/NA Prep 3546 110695 03/29/12 17:18 AM TAL SF Silica Gel Cleanup Analysis 8015B 1 110717 03/30/12 13:44 JZ TAL SF Silica Gel Cleanup Prep 3546 110574 03/28/12 13:25 NP TAL SF Total/NA Analysis 8082 1 110763 03/30/12 18:12 WR TAL SF Total/NA Prep 3546 110573 03/28/12 13:17 NP TAL SF Total/NA Analysis 8081A 1 110816 04/01/12 03:39 WR TAL SF Total/NA Prep 3060A 16480 03/29/12 21:15 SL TAL IRV Total/NA Analysis 7199 10 16630 03/30/12 20:32 SL TAL IRV Total/NA Prep 7471A 110613 03/28/12 18:52 CDT TAL SF Total/NA Analysis 7471A 1 110710 03/29/12 21:04 SK TAL SF Total/NA Prep 3050B 110657 03/29/12 13:08 JR TAL SF Total/NA Analysis 6010B 4 110799 03/30/12 20:52 BA TAL SF Total/NA Analysis 6010B 4 110815 03/31/12 16:05 BA TAL SF Total/NA Leach C A WET Citrate 110790 03/31/12 00:37 SK TAL SF STLC Citrate Prep 3005A 110831 04/02/12 08:26 JR TAL SF STLC Citrate Analysis 6010B 2.5 110886 04/02/12 18:46 BA TAL SF STLC Citrate Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SF = TestAmerica San Francisco, 1220 Quarry Lane, Pleasanton, CA 94566, TEL (925)484-1919 TestAmerica San Francisco Page 34 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Certification Summary Client: Cornerstone Earth Group TestAmerica Job ID: 720-41196-1 Project/Site: Building 12 Lobby Laboratory Authority Program E PA Region Certification ID TestAmerica San Francisco 2496 State Program California 9 TestAmerica Irvine AZ0671 State Program Arizona 9 TestAmerica Irvine 10256 L A Cty Sanitation Districts California 9 TestAmerica Irvine 1108CA NELAC California 9 TestAmerica Irvine 2706 State Program California 9 TestAmerica Irvine Cert. No. 10.001r State Program Guam 9 TestAmerica Irvine N/A State Program Hawaii 9 TestAmerica Irvine CA015312007A State Program Nevada 9 TestAmerica Irvine N/A State Program New Mexico 6 TestAmerica Irvine MP0002 State Program Northern Mariana Islands 9 TestAmerica Irvine 4005 NELAC Oregon 10 TestAmerica Irvine P330-09-00080 Federal USDA Accreditation may not be o ffered or required for all methods and analytes reported in this package . Please contact your project manager for the laboratory's current list of certified methods and analytes. TestAmerica San Francisco Page 35 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Method Method Description Laboratory Protocol SW846 8260B/CA_LUFTM S 8260B / C A LUFT MS TAL SF SW846 8270C Semivolatile Compounds by Gas Chromatography/Mass Spectrometry (GC/MS)TAL SF SW846 8015B Diesel Range Organics (DRO) (GC)TAL SF SW846 8081A Organochlorine Pesticides (GC)TAL SF SW846 8082 Polychlorinated Biphenyls (PCBs) by Gas Chromatography TAL SF SW846 7199 Chromium, Hexavalent (IC)TAL IRV SW846 6010B Metals (ICP)TAL SF SW846 7471A Mercury (C VAA)TAL SF Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: TAL IRV = TestAmerica Irvine, 17461 Derian Ave, Suite 100, Irvine, CA 92614-5817, TEL (949)261-1022 TAL SF = TestAmerica San Francisco, 1220 Quarry Lane, Pleasanton, CA 94566, TEL (925)484-1919 TestAmerica San Francisco Page 36 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary TestAmerica Job ID: 720-41196-1 Client: Cornerstone Earth Group Project/Site: Building 12 Lobby Lab Sample ID Client Sample ID Received Collected Matrix 720-4 1196-1 SP-1 (2')Solid 03/27/12 15:00 03/27/12 18:55 TestAmerica San Francisco Page 37 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 38 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Login Sample Receipt Checklist Client: Cornerstone Earth Group Job Number: 720-4 1196 -1 Login Number: 4 1196 Question Answer Comment Creator: Thomas, Bryan List Source: TestAmerica San Francisco List Number: 1 N/A Radioactivity either was not measured or, if measured, is at or below background N/A The cooler's custody seal, if present, is intact. True The cooler or samples do not appear to have been compromised or tampered with. True Samples were received on ice. True Cooler Temperature is acceptable . True Cooler Temperature is recorded . True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the sample IDs on the containers and the COC. True Samples are received within Holding Time . True Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. N/A Sample Preservation Verified . True There is su fficient vol . for all requested analyses, incl. any requested MS/MSDs True VO A sample vials do not have headspace or bubble is <6mm (1/4") in diameter. True Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. TestAmerica San Francisco Page 39 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Login Sample Receipt Checklist Client: Cornerstone Earth Group Job Number: 720-4 1196 -1 Login Number: 4 1196 Question Answer Comment Creator: Kim, Will List Source: TestAmerica Irvine List Creation: 03/29/12 12:12 PM List Number: 1 N/A Radioactivity either was not measured or, if measured, is at or below background N/A The cooler's custody seal, if present, is intact. True The cooler or samples do not appear to have been compromised or tampered with. True Samples were received on ice. True Cooler Temperature is acceptable . True Cooler Temperature is recorded . True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. N/A Is the Field Sampler's name present on COC? True There are no discrepancies between the sample IDs on the containers and the COC. True Samples are received within Holding Time . True Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified . True There is su fficient vol . for all requested analyses, incl. any requested MS/MSDs N/A VO A sample vials do not have headspace or bubble is <6mm (1/4") in diameter. True Multiphasic samples are not present. True Samples do not require splitting or compositing. N/A Residual Chlorine Checked. TestAmerica San Francisco Page 40 of 40 4/4/2012 1 2 3 4 5 6 7 8 9 10 11 12 13 14