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I <br /> CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> . O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> I QA/QC Report <br /> IMethod 8260E <br /> IMatrix Water <br /> Date Analyzed 12/26/04 <br /> EDate Extracted 12/26/04 <br /> I Perimeters Conic u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 42 50 86 84 70-130 20 2 <br /> Benzene 43 41 50 86 82 70-130 20 4 <br /> Trichloroethene 47 46 50 94 92 70-130 20 2 <br /> Toluene 48 45 50 96 90 70-130 20 6 <br /> Chlorobenzene 55 53 50 110 106 70-130 20 4 <br /> m, -X lenes 107 101 100 107 101 70-130 20 5 <br /> I 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 ug/L 0 5 <br /> m,p-X lenes ND u /L 0 6 <br /> MTBE 1 ND u /L 1 <br /> TBA ND u /L 10 <br /> I DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND ug/L_ 1 <br /> 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br /> I Ethanol ND ug/L 50 <br /> Methanol ND ug/L 100 <br /> I <br /> TOTALI Y D1=DICATLD TO CUSTOMER SATISFACTION <br />