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J00-0STgT0s United States Environmental Protection Agency <br /> Region 9 Laboratory <br /> °2 1337 S.46th Street, Building 201, Richmond, CA 94804 <br /> 44 PRo'�'�' Phone:(510)412-2300 Fax:(510)412-2302 <br /> Project Manager: Carolyn Douglas Brownfields and Site Assessment Section SDG: 11021B <br /> Project Number: R11B03 75 Hawthorne Street Reported: 03/09/1109:04 <br /> Project: El Concilio Site#2 2011 TBA San Francisco CA,94105 <br /> Quality Control <br /> Qualifiers/ Quantitation Spike Source %REC RPD RPD <br /> Analyte Result CommentsLimit Units Level Result %REC Limits Limit <br /> Batch BIA0091-5035 TPHG-TPH-Purgeable Prepared:01/21/11 Analyzed:01/25/11 <br /> Purgeable Petroleum Hydrocarbons by EPA Method 8015C-Quality Control <br /> Matrix Spike(B1A0091-MS1) Source:1101029-21 <br /> TPH as Gasoline 43.7 5 mg/kg 46.5 ND 94 72-108 20 <br /> dry <br /> Surrogate:a,a,a-Tris luorotoluene 10.2 11.6 87 75-119 <br /> Matrix Spike Dup(B1A0091-MSD1) Source:1101029-21 <br /> TPH as Gasoline 43.6 5.3 mg/kg 50.0 ND 87 72-108 7 20 <br /> dry <br /> Surrogate:a,a,a-Tris luorotoluene 10.4 12.5 84 75-119 <br /> Batch BIA0104-5035 TPHG-TPH-Purgeable Prepared:01/25/11 Analyzed:01/26/11 <br /> Purgeable Petroleum Hydrocarbons by EPA Method 8015C-Quality Control <br /> Blank(B1A0104-BLK1) <br /> TPH as Gasoline ND U 5 mg/kg <br /> wet <br /> Surrogate:a,a,a-Triiluorotoluene 11.4 12.5 91 75-119 <br /> LCS(B1A0104-BS1) <br /> TPH as Gasoline 48.4 5 mg/kg 50.0 97 56-136 200 <br /> wet <br /> Surrogate:a,a,a-Tris luorotoluene 11.1 12.5 89 75-119 <br /> Batch BlAO105-3545A ASE/PFE-TPH-Extractable Prepared:01/25/11 Analyzed:01/31/11 <br /> Extractable Petroleum Hydrocarbons by EPA Method 8015B-Quality Control <br /> Blank(B1A0105-BLK1) <br /> TPH-Diesel Range Organics ND U 5 mg/kg <br /> wet <br /> TPH-Oil Range Organics ND U 20 " <br /> Surrogate:Hexacosane 4.94 5.08 97 41-148 <br /> LCS(B1A0105-BSI) <br /> TPH-Diesel Range Organics 43.1 5 mg/kg 50.8 85 59-110 200 <br /> wet <br /> Surrogate:Hexacosane 5.10 5.08 100 41-148 <br /> Batch BIA0108-3545A ASE/PFE-TPH-Extractable Prepared:01/26/11 Analyzed:02/01/11 <br /> Extractable Petroleum Hydrocarbons by EPA Method 8015B-Quality Control <br /> Blank(B1A0108-BLKI) <br /> TPH-Diesel Range Organics ND U 5 mg/kg <br /> wet <br /> TPH-Oil Range Organics ND U 20 " <br /> Surrogate:Hexacosane 4.61 5.00 92 41-148 <br /> 1101029 FINAL 03 09 11 0904 Page 10 of 13 <br />