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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: 11021C <br /> Project Number: R11B03 75 Hawthorne Street Reported: 03/09/1109:18 <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 BlAO110-5030 P&T TPH-G-TPH-Purgeable Prepared&Analyzed:01/27/11 <br /> Purgeable Petroleum Hydrocarbons by EPA Method 8015C-Quality Control <br /> Blank(B1A0110-BLK1) <br /> TPH as Gasoline ND U 50 ug/L <br /> Surrogate:a,a,a-Tris luorotoluene 110 125 88 76-121 <br /> LCS(B1A0110-BSI) <br /> TPH as Gasoline 508 50 ug/L 500 102 75-114 200 <br /> Surrogate:a,a,a-Tris luorotoluene 126 125 101 76-121 <br /> Matrix Spike(B1A0110-MS1) Source:1101039-07 <br /> TPH as Gasoline 595 50 ug/L 500 117 96 71-114 11 <br /> Surrogate:a,a,a-Tris luorotoluene 124 125 99 76-121 <br /> Matrix Spike Dup(B1A0110-MSDI) Source:1101039-07 <br /> TPH as Gasoline 620 50 ug/L 500 117 101 71-114 4 11 <br /> Surrogate:a,a,a-Tris luorotoluene 117 125 93 76-121 <br /> 1101030,1101039 FINAL 03 09 11 0918 Page 6 of 7 <br />