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CALTECH Environmental Laboratories <br /> 6814 Rosecrans A%enue Paiamouni CA 90723-3146 <br /> Telephone (562) 272-2700 fax (562) 272-'789 <br /> i <br /> I <br /> ' QA/QC Report <br /> Method 8260B <br /> Matrix Soil <br /> Date Analyzed 7/18/03 <br /> Units ug/Kg <br /> Perimeters LSC-2 LCSD-2 Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 48 52 50 96 104 60-140 8 <br /> Benzene 42 40 50 84 80 60-140 4 <br /> Trichloroethene 45 49 50 90 98 60-140 2 <br /> ' Toluene 46 48 50 92 96 60-140 4 <br /> Chlorobenzene 42 45 50 84 90 60-140 6 <br /> m, -X lens 81 85 100 81 85 60-140 4 <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 /> 1 <br />