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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Palan1011111 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 4/6105 <br />' Date Extracted 4/6/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 45 50 86 90 70-130 20 4 <br />' Benzene 46 48 50 92 96 70-130 20 4 <br /> Trichloroethene 45 48 50 90 96 70-130 20 6 <br /> Toluene 44 47 50 88 94 70-130 20 6 <br />' Chlorobenzene 47 47 50 94 1 94 70-130 20 0 <br /> m, Xylenes 85 89 100 85 1 89 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 /> I Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u /L 0 5 <br /> m, -X Ienes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA 1 ND u /L 10 <br /> DIPE ND u /L 1 <br />■ <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND a /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 ug/L 1 <br /> PCE ND u /L 1 <br /> I <br /> TOTALLY DEDICATED FO CUSTOMER SATISFACTION <br />