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CALTECH Environmental Laboratories <br />! 68Rosecrans Avenue Pa[an1011llt CA 90723-3146 <br /> • O Tele14 phone (562) 272-2700 fax (562) 272-2789 <br />! QA/QC Report <br />! Method 82608 <br />! Matrix Water <br /> Date Analyzed 3/9/05 <br />! Date Extracted 319/05 <br /> Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 42 43 50 84 86 70-130 20 2 <br /> Benzene 44 46 50 88 92 70-130 20 4 <br /> Trichloroethene 45 47 50 90 94 70-130 20 4 <br /> Toluene 41 43 50 82 86 70-130 20 4 <br /> Chlorobenzene 43 47 50 86 94 70-130 1 20 8 <br /> m, -X lenes 88 94 100 88 1 94 70-130 1 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 a /L 05 <br /> Chlorobenzene ND u /L 05 <br /> I m,p-X lenes ND u /L 06 <br /> MTBE ND u /L 1 <br /> TBA N D 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 /L 05 <br /> Eth (benzene ND u /L 05 <br /> I o-X lane ND u /L 06 <br /> TCE= ND ug/L 1 <br /> PCE ND u IL 1 <br /> • <br /> I <br /> TOTALLY DE-DIC ArED I'0 CUSTOMER SATISFACTION <br />