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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue ParanlOU"t CA 90723-3 146 <br /> Telephone (562) 272-2700 lax (562) 272-2789 <br /> QA/QC Report <br />' <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 912103 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limas RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethara' 41 40 50 82 80 60-140 2 Benzene M 49 49 50 98 98 60-140 0 <br /> Trichloroethene 47 49 50 94 98 60-140 4 <br /> Toluene 43 46 50 96 92 60-140 4 <br /> Chlorobenzene 1 48 51 50 96 102 60-140 6 <br /> m, -X lenes 1 100 110 100 100 111 60-140 10 <br /> li <br /> LCS Laboratory Control Standard <br /> 1 LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Lrrnits RPD <br /> 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br />' m,p-X lanes 0 70-130 <br /> 1 <br />' TOTAI LY DEDICAI LD TO CUSTOMER Sr,,TISFACTION <br />