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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Parajnot�nt CA 90723-3146 <br /> r• <br /> KY <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 4/18/05 <br />' Date Extracted 4/18/05 <br />' Perimeters Conc u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 45 48 50 90 96 70-130 20 6 <br />' Benzene 48 52 50 96 104 70-130 20 8 <br /> Trichloroethene 48 52 50 96 104 70-130 20 8 <br /> Toluene 51 54 50 102 108 70-130 20 6 <br /> Chlorobenzene 50 53 50 100 106 70-130 20 6 <br />' m, -X lenes 109 1 118 100 109 118 1 70-130 20 8 <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 1 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u /L 0 5 4 <br /> t rn,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-Dichloroethane 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 />' TOTALLY DEDICATED rO CUSTOMER SATISFACTION <br />