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CALTECH Environmental Laboratories <br />! 6814 Rosecrans Avenue, PalamolInt CA 90723-3146 <br /> Telephone (562) 272-2700 Fav (562) 272-2789 <br />! QA/QC Report <br />! Method 8260B <br />! Matrix Water <br /> Date Analyzed 12/7104 <br />! Date Extracted 12/7/04 <br />! Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 50 50 96 100 70-130 20 4 <br />! Benzene 44 42 50 88 84 70-130 20 4 <br /> Trichloroethene 53 56 50 106 112 70-130 20 6 <br /> Toluene 47 48 50 94 96 70-130 20 2 <br />! Chlorobenzene 48 50 50 96 100 70-130 20 4 <br /> m, -X lenes 94 97 100 94 97 70-130 20 3 <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-Dchloroethene ND u /L 1 <br />! Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u IL 0 5 <br />! m,p-X lenes ND u2/1- 0 6 <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-Dchloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X leve ND u /L 0 6 <br />! Ethanol ND u /L 50 <br /> Methanol ND u IL 1000 <br /> TONALLY DI=DICAI LD TO CUS�[OR�II✓R SATISFACTION <br />