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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: RI IB03 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&Analyzed:01/25/11 <br /> level Volatile Organic Compounds by EPA Method 8260C-Quality Control <br /> Blank(B1A0098-BLKl) <br /> Dichlorodifluoromethane ND U 250 ug/kg <br /> wet <br /> Chloromethane ND U 250 " <br /> Vinyl chloride ND U 250 " <br /> Bromomethane ND U 250 " <br /> Chloroethane ND U 250 " <br /> Trichlorofluoromethane ND U 250 " <br /> 1,1-Dichloroethene ND U 250 " <br /> 1,1,2-Trichloro-1,2,2-trifluoroethane ND U 250 " <br /> Acetone ND U 2,000 " <br /> Carbon disulfide ND U 250 " <br /> Dichloromethane ND U 250 " <br /> trans-1,2-Dichloroethene ND U 250 " <br /> tert-Butyl methyl ether(MTBE) ND U 1,000 " <br /> 1,1-Dichloroethane ND U 250 " <br /> Ethyl tert-butyl ether ND U 1,000 " <br /> cis-1,2-Dichloroethene ND U 250 " <br /> 2-Butanone(MEK) ND U 2,000 " <br /> Chloroform ND U 250 " <br /> 1,1,1-Trichloroethane ND U 250 " <br /> Carbon tetrachloride ND U 250 " <br /> 1,1-Dichloropropene ND U 250 " <br /> Benzene ND U 250 " <br /> 1,2-Dichloroethane ND U 250 " <br /> tert-Amyl methyl ether ND U 1,000 " <br /> Trichloroethene ND U 250 " <br /> 1,2-Dichloropropane ND U 250 " <br /> Bromodichloromethane ND U 250 " <br /> cis-1,3-Dichloropropene ND U 250 " <br /> 4-Methyl-2-pentanone(MIBK) ND U 2,000 " <br /> Toluene ND U 250 " <br /> trans-1,3-Dichloropropene ND U 250 " <br /> 1,1,2-Trichloroethane ND U 250 " <br /> Tetrachloroethene ND U 250 " <br /> 1,3-Dichloropropane ND U 250 " <br /> 2-Hexanone ND U 2,000 " <br /> Chlorodibromomethane ND U 250 " <br /> 1,2-Dibromoethane(EDB) ND U 250 " <br /> Chlorobenzene ND U 250 " <br /> Ethylbenzene ND U 250 " <br /> m&p-Xylene ND U 500 " <br /> o-Xylene ND U 250 " <br /> 1101029 FINAL 02 22 11 1318 Page 9 of 15 <br />