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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: 02/22/11 13:18 <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 BlA0098-5035 VOA Solid-VOCs,solids,medium Prepared:01/25/11 Analyzed:01/26/11 <br /> level Volatile Organic Compounds by EPA Method 8260C-Quality Control <br /> Matrix Spike Dup(B1A0098-MSD1) Source:1101029-08 <br /> 1,2-Dichlorobenzene 3,250 330 2980 ND 109 76-116 2 20 <br /> 1,2-Dibromo-3-chloropropane 13,100 1,300 2980 ND 441 42-161 7 20 <br /> Surrogate:1,2-Dichloroethane-d4 1350 1120 120 33-172 <br /> Surrogate:Toluene-d8 1200 1110 107 54-174 <br /> Surrogate:4-Bromofluorobenzene 1270 1120 113 32-170 <br /> Surrogate:1,2-Dichlorobenzene-d4 1290 1120 115 33-174 <br /> 1101029 FINAL 02 22 11 1318 Page 14 of 15 <br />