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i <br /> CALTECH Environmental Laboratories <br /> . 6814 Rosecrans Avenue Paramount CA 90723-3 146 <br /> Telephone (562) 272-2 700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 82608 <br /> Matrix Water <br /> Date Analyzed 3/3/04 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 49 46 50 98 92 60-140 6 <br /> Benzene 49 45 50 98 90 60-140 8 <br /> Trichloroethene 44 42 50 88 84 60-140 4 <br /> Toluene 42 42 1 50 84 1 84 1 60-140 0 <br /> Chlorobenzene 48 47 1 50 96 94 60-140 2 <br /> m,p-X lenes 92 89 1 100 92 89 60-140 3 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Limas I 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 /> rn,p-X lenes 0 70-130 <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />