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1 <br /> CALTECH Environmental Laboratories <br /> QA/QC Report <br /> I <br /> Method 8260B <br />' Matrix Water <br /> Date Analyzed 1/17/03 <br /> Units ug/L <br />' Perimeters LSC LCSD I Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 61 58 50 122 116 70-130 5 <br /> Benzene 53 45 50 106 90 70-130 15 <br /> Trichloroethene 51 52 50 102 104 70-130 2 <br /> Toluene 52 54 50 102 108 70-130 6 <br /> Chlorobenzene 47 49 50 94 98 70-130 4 <br /> m, -X lenes 123 127 100 123 127 70-130 3 <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <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 /> I <br />