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CALTECH Environmental Laboratories <br />' <br /> 7T81.4Rosecrans Avenue Paramount CA 90723-3146 <br /> hone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br />' Method 82608 <br />' Matrix Water <br /> Date Analyzed 4/12/05 <br />' Date Extracted 4112/05 <br />' Perimeters Conc u /L Spike Recove % Control Limits RPD <br /> LCS. LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 43 50 86 86 70-130 20 0 <br />' Benzene 46 47 50 92 94 70-130 20 2 <br /> Trichloroethene 47 48 50 94 96 70-130 20 2 <br /> Toluene 49 52 50 98 104 70-130 20 6 <br />' Chlorobenzene 51 55 50 101 110 70-130 20 9 <br /> m, -X lenes 92 98 100 92 98 70-130 20 6 <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 u /L 05 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND u /L 05 <br /> m, -Xylenes ND u /L 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPS ND u /L 1 <br /> ETBE ND ug/L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 05 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br />' Ethanol ND u /L 50 <br /> Methanol ND u /L 1000 <br /> I <br /> TOTALLY DEDICATF,I) rO CUSTOMER SATISFACTION <br />