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CALTECHEnvironmental Laboratories <br /> O6814 Rosecrans AvenLfe ParaMOUnt CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrrx Sol] <br /> Date Analyzed 5118104 <br /> Units ug/Kg <br /> Per,meters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Ree Rec _ <br /> 1,1-Dichloroethene 45 42 50 90 84 60-140 7 <br /> Benzene 48 45 50 96 90 60-140 6 <br /> Tr:cl-loroethene 1 48 43 50 96 86 60-140 10 <br /> Toluene 49 47 50 98 94 60-140 4 <br /> Chlorobenzene 46 44 50 92 88 60-140 4 <br /> m, -X lenes 108 96 100 108 96 60-140 11 <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 /> TOTALLY [)MIC ATl ) IOCUI OMLR SATISFACTION <br />