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I <br /> CALTECH Environmental Laboratories <br /> I6814 Rosecrans Avenue Pai an1o«nt CA 90723-3146 <br /> Telephone (562) 272-2700 Fa• (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 12/21/04 <br />' Date Extracted 12/21/04 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 44 42 50 88 84 70-130 20 4 <br />' Benzene 53 52 50 106 104 70-130 20 2 <br /> Trichloroethene 46 47 50 92 94 70-130 20 2 <br /> Toluene 42 44 50 84 88 70-130 20 4 <br /> Chlorobenzene 45 47 50 90 94 70-130 1 20 4 <br />' m, -X lenes 96 94 100 96 94 70-130 1 20 2 <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 0 5 <br />' Trichloroethene ND u /L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND u /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-Dchloroethane 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 />' TCE ND u /L 0 5 <br /> PCE ND u /L 0 5 <br />' TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />