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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 CommentsLimit Units Level Result %REC Limits Limit <br /> Batch BIA0090-5035 TPHG-TPH-Purgeable Prepared:01/21/11 Analyzed:01/24/11 <br /> Purgeable Petroleum Hydrocarbons by EPA Method 8015C-Quality Control <br /> Blank(B1A0090-BLK1) <br /> TPH as Gasoline ND U 5 mg/kg <br /> wet <br /> Surrogate:a,a,a-Triiluorotoluene 10.6 12.5 85 75-119 <br /> LCS(B1A0090-BS1) <br /> TPH as Gasoline 45.3 5 mg/kg 50.0 91 56-136 200 <br /> wet <br /> Surrogate:a,a,a-Tris luorotoluene 10.5 12.5 84 75-119 <br /> Matrix Spike(B1A0090-MS1) Source:1101029-08 <br /> TPH as Gasoline 55.9 6.3 mg/kg 56.4 ND 99 72-108 20 <br /> dry <br /> Surrogate:a,a,a-Tris luorotoluene 13.3 14.1 94 75-119 <br /> Matrix Spike(B1A0090-MS2) Source:1101029-12 <br /> TPH as Gasoline 53.4 5.8 mg/kg 52.3 ND 102 72-108 20 <br /> dry <br /> Surrogate:a,a,a-Triiluorotoluene 12.6 13.1 97 75-119 <br /> Matrix Spike Dup(B1A0090-MSD1) Source:1101029-08 <br /> TPH as Gasoline 52.9 6.1 mg/kg 54.5 ND 97 72-108 2 20 <br /> dry <br /> Surrogate:a,a,a-Triiluorotoluene 12.3 13.6 90 75-119 <br /> Matrix Spike Dup(BIA0090-MSD2) Source:1101029-12 <br /> TPH as Gasoline 54.6 6.4 mg/kg 57.7 ND 95 72-108 8 20 <br /> dry <br /> Surrogate:a,a,a-Triiluorotoluene 12.8 14.4 88 75-119 <br /> Batch BlAO091-5035 TPHG-TPH-Purgeable Prepared:01/21/11 Analyzed:01/24/11 <br /> Purgeable Petroleum Hydrocarbons by EPA Method 8015C-Quality Control <br /> Blank(B1A0091-BLKI) <br /> TPH as Gasoline ND U 5 mg/kg <br /> wet <br /> Surrogate:a,a,a-Triiluorotoluene 10.2 12.5 82 75-119 <br /> LCS(B1A0091-BSI) <br /> TPH as Gasoline 45.6 5 mg/kg 50.0 91 56-136 200 <br /> wet <br /> Surrogate:a,a,a-Trifluorotoluene 10.7 12.5 86 75-119 <br /> Matrix Spike(BIA0091-MS1) Source:1101029-21 <br /> 1101029 FINAL 03 09 11 0904 Page 9 of 13 <br />