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CALTECH Environmental Laboratories <br /> QA/QC Report <br /> 1 <br /> Method 8015M /8021 B <br />' Matrix Water , <br /> Date Analyzed 12/4/02 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' Benzene _ 54 54 50 108 108 70-130 0 <br /> Tcluene 49 50 50 98 100 70-130 2 <br /> Etn benzene 45 1 46 50 90 92 70-130 2 <br /> X renes . 145—T---f41 150 97 94 70-130 3 <br />' TPH - Gasoline 1055 1 1035 1000 106 104 60-140 2 <br /> lie LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br />' RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> LL ° A 11 P_ D P <br />