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J00-0SNIO, 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 Comments Units Level Result %REC Limits Limit <br /> Limit <br /> Batch Bl B0004-3545A ASE/PFE-TPH-Extractable Prepared:02/03/11 Analyzed:02/08/11 <br /> Extractable Petroleum Hydrocarbons by EPA Method 8015B-Quality Control <br /> LCS(B1B0004-BSI) <br /> TPH-Diesel Range Organics 43.1 5 mg/kg 50.0 86 59-110 200 <br /> wet <br /> Surrogate:Hexacosane 5.11 5.00 102 41-148 <br /> Matrix Spike(B1B0004-MSl) Source:1101029-12RE1 <br /> TPH-Diesel Range Organics 65.3 9.3 mg/kg 93.3 ND 70 20-153 50 <br /> dry <br /> Surrogate:Hexacosane 7.43 9.33 80 41-148 <br /> Matrix Spike Dup(BIB0004-MSD1) Source:1101029-12RE1 <br /> TPH-Diesel Range Organics 59.5 9.4 mg/kg 93.9 ND 63 20-153 9 50 <br /> dry <br /> Surrogate:Hexacosane 6.95 9.39 74 41-148 <br /> 1101029 FINAL 03 09 11 0904 Page 12 of 13 <br />