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i <br /> CALTECH Environmental Laboratories <br /> . O 6814 Rosecrans Avenue, Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 12/17/04 <br /> Date Extracted 12/17/04 <br /> Perimeters Conc u /L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 49 49 50 98 98 70-130 20 0 <br /> Benzene 52 51 50 104 102 70-130 20 2 <br /> Tnchloroethene 53 50 50 106 100 70-130 20 6 <br /> Toluene 56 54 50 112 108 70-130 20 4 <br /> Chlorobenzene 1 55 51 50 110 102 70-130 20 2 <br /> m, -X lenes 1 111 107 100 111 107 70-130 20 4 <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 a /L 05 <br /> Trichloroethene ND u /L 05 <br /> Toluene ND u L 05 <br /> Chlorobenzene ND u /L 05 <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 /> ETRE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 0 5 <br /> Eth (benzene NO u /L 05 <br /> o-X lene ND u /L 06 <br /> Ethanol ND a /L 50 <br /> Methanol ND u /L 1000 <br /> TOTAL( Y DEDICAH-D FO CUSTOMER SATISFACTION <br />