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CALTECH Environmental Laboratories <br /> I <br /> QA/QC Report <br /> Method 8260B <br /> IMatrix Water <br /> Date Analyzed 1128103 <br /> Units ug/L <br /> IPerimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec. <br /> 1,1-D-chloroethene 49 50 50 98 100 70-130 2 <br /> Benzene 47 48 50 94 96 70-130 2 <br /> Trichloroethene 48 54 50 96 108 70-130 10 <br /> ToiuPne 47 48 50 94 96 70130 2 <br /> Chlorobenzene 54 54 50 108 108 70-130 0 <br /> m,p-X lenes 112 115 100 112 115 70-130 3 <br /> I• <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> Perimeters i Blank Limits RPD <br /> I1,1-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 /> I <br /> • <br />