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1 <br /> CALTECH Environmental Laboratories <br /> '2, W _ <br /> QA/QC Report <br /> ' Method <br /> 826oB <br /> ' Matnx Water <br /> Date Analyzed 412103 <br /> ' Units ug/L <br /> ' Perimeters LSC LCSD I Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 42 40 50 84 80 60-140 4 <br /> Benzene 46 45 50 92 90 60-140 2 <br /> Trichloroethene 47 45 1 50 94 90 60-140 4 <br /> Toluene 42 41 50 84 82 60-140 2 <br /> ' Chlorobenzene 47 44 50 94 8$ 60-140 6 <br /> m,p-X lenes 108 106 100 108 106 60-140 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 /> m, -X lenes 0 70-130 <br /> ' ` 0 rAl 1 Y DI D! <br />