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CALTECH Environmental Laboratories <br /> O 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> l �fclephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 82608 <br /> Matrix Soil <br /> Date Analyzed 7/23/03 <br /> Units ug/Kg <br /> i <br /> Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec. Rec _ <br /> 1,1-Dichloroethene 42 40 50 84 80 60-140 5 <br /> Benzene 46 43 50 92 86 60-140 6 <br /> Trichloroethene 41 40 50 82 80 60-140 2 <br /> Toluene 46 45 50 92 90 60-140 <br /> Chlorobenzene 44 41 50 88 82 60-140 7 <br /> m, -X lenes 88 85 100 88 85 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 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,p-X lenes 0 70-130 <br /> TOTAI LY DEDIC A"I LD TO CUSI OMER SATISFACTION <br />