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CALTECH Environmental Laboratories <br /> QA/QC Report <br /> I <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 2/25/03 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS '/o LCSD% Limits RPD , <br /> Added Rec Rec <br />' 1,1-Dichloroethene y 49 55 50 98 110 70-130 12 <br /> Benzene 61 62 50 122 124 70-130 2 <br /> Trichloroethene _ 44 46 50 88 96 70-130 9 <br /> Toluene 41 41 50 82 82 70-130 0 <br />' Chlorobenzene 44 44 50 1 88 88 1 70-130 0 <br /> m, -X lenes 98 96 100 1 98 96 1 70-130 2 <br /> 1 � <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 />' MR-Xylenes lenes 0 70-130 <br /> 1 <br /> I <br /> [ <br />