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J00-0SrgT0s 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 BlAO108-3545A ASE/PFE-TPH-Extractable Prepared:01/26/11 Analyzed:02/01/11 <br /> Extractable Petroleum Hydrocarbons by EPA Method 8015B-Quality Control <br /> LCS(B1A0108-BS1) <br /> TPH-Diesel Range Organics 42 5 mg/kg 50.0 84 59-110 200 <br /> wet <br /> Surrogate:Hexacosane 4.77 5.00 95 41-148 <br /> Matrix Spike(B1A0108-MS1) Source:1101029-21 <br /> TPH-Diesel Range Organics 30.3 5.7 mg/kg 57.4 ND 53 20-153 50 <br /> dry <br /> Surrogate:Hexacosane 3.40 5.74 59 41-148 <br /> Matrix Spike(B1A0108-MS2) Source:1101029-08 <br /> TPH-Diesel Range Organics 31.9 6.4 mg/kg 64.6 ND 49 20-153 50 <br /> dry <br /> Surrogate:Hexacosane 3.47 6.46 54 41-148 <br /> Matrix Spike Dup(B1A0108-MSD1) Source:1101029-21 <br /> TPH-Diesel Range Organics 26 5.7 mg/kg 57.4 ND 45 20-153 15 50 <br /> dry <br /> Surrogate:Hexacosane 2.80 5.74 49 41-148 <br /> Matrix Spike Dup(B1A0108-MSD2) Source:1101029-08 <br /> TPH-Diesel Range Organics 36.8 6.4 mg/kg 64.7 ND 57 20-153 14 50 <br /> dry <br /> Surrogate:Hexacosane 4.07 6.47 63 41-148 <br /> Batch BlB0003-Solids,Dry Weight(Prep)-Solids,Dry Prepared:02/01/11 Analyzed:02/02/11 <br /> Weight Conventional Chemistry Parameters by APHA/EPA Methods-Quality Control <br /> Blank(B1B0003-BLKl) <br /> %Solids ND U 1 % <br /> Blank(B1B0003-BLK2) <br /> %Solids ND U 1 % <br /> Duplicate(B1B0003-DUPl) Source:1101029-02 <br /> %Solids 82 1 % 83 0.8 20 <br /> Duplicate(B1B0003-DUP2) Source:1101029-12 <br /> %Solids 80 1 % 80 0.2 20 <br /> Batch BlB0004-3545A ASE/PFE-TPH-Extractable Prepared:02/03/11 Analyzed:02/08/11 <br /> Extractable Petroleum Hydrocarbons by EPA Method 8015B-Quality Control <br /> Blank(B1B0004-BLKl) <br /> TPH-Diesel Range Organics ND U 5 mg/kg <br /> wet <br /> TPH-Oil Range Organics ND U 20 " <br /> Surrogate:Hexacosane 5.25 5.00 105 41-148 <br /> 1101029 FINAL 03 09 11 0904 Page 11 of 13 <br />