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I <br /> CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paiamount CA 90723-3146 <br /> • <br /> Cf <br /> Telephone (562) 272-2700 Fay (562) 272-2789 <br /> QA/QC Report <br /> Method 82606 <br /> Matrix Water <br /> Date Analyzed 12/30/04 <br /> Date Extracted 12/30/04 <br /> Perimeters Conc u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 44 50 86 88 70-130 20 2 <br /> Benzene 47 47 50 94 94 70-130 20 0 <br /> Trichloroethene 49 51 50 98 102 70-130 20 4 <br /> Toluene 48 51 50 96 102 70-130 20 6 <br /> Chlorobenzene 52 55 50 104 110 70-130 20 6 <br /> m, -X lenes 98 103 100 98 103 70-130 20 5 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND u /L 05 <br /> Trichloroethene ND ug/L 05 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u /L 0 5 <br /> m,p-X lenes ND u /L 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u IL 05 <br /> Eth (benzene ND u /L 05 <br /> o-X lene ND u /L 06 <br /> Ethanol ND ug/L 50 <br /> Methanol ND u /L 100 <br /> I <br /> i <br /> TOTALLY DEDICAI-I-D 170 CUSTOMER SATISFACTION <br />