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I <br /> CALTECH Environmental Laboratories <br /> I 6814 Rosecrans Avenue Paiamount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> I <br /> QA/QC Report <br /> I <br /> Method 82606 <br /> rMatrix Water <br /> IDate Analyzed 10/28/04 <br /> Units ug/L <br /> IPerimeters LSC LCSD Spike LCS% LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 44 42 50 88 84 60-140 4 <br /> Benzene 46 45 50 92 90 60-140 2 <br /> Trichloroethene 49 47 50 98 94 60-140 4 <br /> Toluene 48 46 50 96 92 60-140 4 <br /> Chlorobenzene 47 44 50 94 88 60-140 6 <br /> M, -Xylenes 93 88 100 93 88 60-140 5 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Limits 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, -X lenes 0 70-130 <br /> TOTALLY DEDICA-I FD ro C usTOMER SATISFACTION <br />