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CALTECH Environmentai Laboratories <br /> 6814 Rosecrans Avenue PatanlOLltlt CA 90723-3146 O Telephone (562) 272-2700 Fay (562) 272-2789 <br /> r <br /> QA/QC Report <br /> I <br /> Method 8260B <br /> Matrix: Water <br />' Date Analyzed 9/30/04 <br /> Units u g/L <br />' Perimeters LCS LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> i 1,1-Dichloroethene 42 44 50 84 88 60-140 4 <br /> Benzene 47 48 50 94 96 60-140 2 <br /> Trichloroethene 49 51 50 98 102 60-140 4 <br /> i Toluene 48 50 50 96 100 60-140 4 <br /> Chlorobenzene 50 53 50 100 106 60-140 6 <br /> m, -X lenes 104 1l1 100 104 111 60-140 7 <br /> i • <br /> LCS Laboratory Control Standard <br /> iLCSD: Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br />' Perimeters Blank Limits RPD <br /> i,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, -X lenes 0 70-130 <br /> TOTALLY DEDICArLD TO CLJS1 OM LR SATISFACTION <br />