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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Paramount CA 90723-3 146 <br /> . O Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br /> Matrix Water <br /> Date Analyzed 3/10/05 <br />' Date Extracted 3/10/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 45 47 50 90 94 70-130 20 4 <br />' Benzene 48 48 50 96 96 70-130 20 0 <br /> Trichloroethene 50 52 50 100 104 70-130 20 4 <br /> Toluene 48 49 50 96 98 70-130 20 2 <br /> Chlorobenzene 54 55 50 108 1 110 70-130 20 2 <br /> m, -X lenes 103 1 108 100 103 108 70-130 1 20 5 <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 u IL 05 <br /> Chlorobenzene ND ug/L_ 05 <br /> m, -Xylenes ND u /L 06 <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-Dichloroethane ND u /L 05 <br /> EDB ND u /L 05 <br /> Eth lbenzene ND u /L 05 <br /> o-X lene ND ug/L 06 <br /> TCE ND u /L 1 <br /> PCE ND ug/L 1 <br /> • <br /> TOTALLY DEDICATED LO CUS1 OMLR SATISFACTION <br />