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CALTECH Environmental Laboratories <br /> Posec- <br /> QA/QC Report <br /> ' Method: 8015M/8021 B <br /> ' Matrix: Water <br /> Date Analyzed: 9123/02 <br /> Units: ug/L <br /> ' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec. Rec. <br /> Benzene _ 48 44 96 88 92 70-130 4 <br /> ' Toluene _ 46 42 92 84 90 70-130 7 <br /> Eth benzene 47 42 94 84 88 70-130 5 <br /> X ienes 99 88 99 88 93 70-130 6 <br /> TPH - Gasoline 1023 1111 102 111 1035 60-140 9 <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 /> ' T0TAL'!_Y DE1)ICANTIāœ“D TCS CUSTONIER SATISFACTION <br />