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CALTECH Environmental Laboratories <br /> 68 i4 R:.,sec,zn, A' ens.;, <br /> QA/QC Report <br />' Method 8015M /8021 B <br />' Matrix Water <br /> Date Analyzed 12/11/01 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS% LCSD % Limits RPD <br /> Added Rec Rec <br /> Benzene 47 9 49 50 96 98 70-130 21 <br /> Toluene 472 486 50 94 97 70-130 32 <br /> Eth benzene 585 61 3 50 117 123 70-130 5 1 <br /> X lenes 133 162 1 150 89 108 70-130 21 <br /> TPH - Gasoline 516 450 1 500 103 90 60-140 13 <br />' LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br />' RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> 1 <br />