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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> . O Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 3/16/05 <br /> Date Extracted 3/16/05 <br />' Perimeters Cone u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 47 46 50 94 92 70-130 20 2 <br />' Benzene 50 48 50 100 96 70-130 20 4 <br /> Trichloroethene 52 50 50 102 100 70-130 20 2 <br /> Toluene 50 48 50 100 96 70-130 20 4 <br />' Chlorobenzene 54 51 50 108 102 70-130 20 6 <br /> m, -X lenes 104 97 100 104 97 70-130 20 7 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br />' RPD Relative Percent Difference of LCS and LCSD <br />' Perimeters Method Unds Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND ug/L 0 5 <br />' m,p-X lenes ND u /L 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-Dichforoethane ND u /L 05 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u IL 05 <br /> o-X lene ND u /L 0 6 <br /> TCE ND u /L 1 <br /> PCE ND I u /L 1 <br /> r <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />