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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 BlAO098-5035 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 /> Styrene ND U 250 "
<br /> Bromoform ND C3,J,U 250 "
<br /> 1,1,2,2-Tetrachloroethane ND U 250 "
<br /> 1,2,3-Trichloropropane ND U 250 "
<br /> 1,3-Dichlorobenzene ND U 250 "
<br /> 1,4-Dichlorobenzene ND U 250 "
<br /> 1,2-Dichlorobenzene ND U 250 "
<br /> 1,2-Dibromo-3-chloropropane ND C3,J,U 1,000 "
<br /> Surrogate:1,2-Dichloroethane-d4 1280 1250 103 33-172
<br /> Surrogate:Toluene-d8 1210 1250 96 54-174
<br /> Surrogate:4-Bromofluorobenzene 1230 1250 99 32-170
<br /> Surrogate:1,1-Dichlorobenzene-d4 1250 1250 100 33-174
<br /> LCS(B1A0098-BSI)
<br /> Dichlorodifluoromethane 2,480 250 ug/kg 2500 99 10-194 200
<br /> wet
<br /> Chloromethane 2,820 250 2500 113 46-132 200
<br /> Vinyl chloride 2,850 250 2500 114 65-129 200
<br /> Bromomethane 3,080 250 2500 123 10-186 200
<br /> Chloroethane 2,850 250 2500 114 10-190 200
<br /> Trichlorofluoromethane 2,810 250 2500 112 58-140 200
<br /> 1,1-Dichloroethene 2,740 250 2500 109 57-141 200
<br /> 1,1,2-Trichloro-1,2,2-trifluoroethane 2,620 250 2500 105 59-153 200
<br /> Acetone 21,700 2,000 20000 108 29-180 200
<br /> Dichloromethane 2,850 250 2500 114 62-126 200
<br /> trans-1,2-Dichloroethene 3,000 250 2500 120 66-127 200
<br /> tert-Butyl methyl ether(MTBE) 11,700 1,000 10000 117 73-130 200
<br /> 1,1-Dichloroethane 2,930 250 2500 117 68-123 200
<br /> cis-1,2-Dichloroethene 2,970 250 2500 119 69-127 200
<br /> 2-Butanone(MEK) 23,000 2,000 20000 115 51-161 200
<br /> Chloroform 2,950 250 2500 118 69-123 200
<br /> 1,1,1-Trichloroethane 2,780 250 2500 111 82-118 200
<br /> Carbon tetrachloride 2,820 250 2500 113 80-125 200
<br /> 1,1-Dichloropropene 2,820 250 2500 113 78-125 200
<br /> Benzene 2,680 250 2500 107 79-116 200
<br /> 1,2-Dichloroethane 2,620 250 2500 105 75-120 200
<br /> Trichloroethene 2,620 250 2500 105 78-118 200
<br /> 1,2-Dichloropropane 2,670 250 2500 107 79-119 200
<br /> Bromodichloromethane 2,800 250 2500 112 79-117 200
<br /> cis-1,3-Dichloropropene 2,890 250 2500 116 82-126 200
<br /> 4-Methyl-2-pentanone(MIBK) 19,400 2,000 20000 97 76-135 200
<br /> 1101029 FINAL 02 22 11 1318 Page 10 of 15
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