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CALTECH Environmental Laboratories <br /> QA/QC Report <br /> Method 8260B <br />' Matrix Water <br /> Date Analyzed 2/24103 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limas RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 53 54 50 106 108 70-130 2 <br /> Benzene 44 41 50 88 82 70-130 4 <br /> Trichloroethene 50 51 50 100 102 70-130 2 <br />' Toluene 45 46 50 90 92 70-130 2 <br /> Chlorobenzene 53 56 50 106 112 70-130 6 <br /> m, -X lenes 128 126 100 128 126 70-130 2 <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> Perimeters Blank Limits RPD <br /> 1 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 /> I <br /> I <br />