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E <br /> CALTECH Environmental Laboratories E <br /> QA/QC Report <br /> E <br /> E Method 8260B <br /> Matrix Water <br /> EDate Analyzed 12/21/01 <br /> Units ug/L <br /> E <br /> Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 449 471 50 90 94 70-130 44 <br /> Trichloroethene 472 463 50 94 93 70-130 11 <br /> Chlorobenzene 50 51 6 50 100 103 70-130 3 <br /> Toluene 452 45 50 90 90 70-130 0 <br /> Benzene 467 47 3 50 93 1 95 70-130 22 <br /> E LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> E <br /> 1 <br /> E <br /> 1 <br /> E <br /> 1 <br /> 1 <br />