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CALTECH Environmental Laboratories <br /> QA/QC Report <br /> Method 8015M <br />' Matrix Water <br />' Date Analyzed 1/24/03 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Ree Rec <br />' Benzene 45 42 50 90 84 70-130 6 <br /> Toluene 43 41 50 86 82 70-130 4 <br /> Eftbenzene 41 38 50 82 76 70-130 7 <br />' <br /> Xylenes 137 128-----F-150 1 91 1 85 1 70-130 1 7 <br /> TPN - Gasoline 1033 1163 1 1000 103 1 116 60-140 13 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> I <br /> J A l ..1 <br />