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I <br /> CALTECH Environmental Laboratories <br /> %'-A 9072'1-5 146 <br /> 2-2-1 70" i a: 11562) 2/2-2789 <br />' QA/QC Report <br />' <br /> Method 8015M/8021 B <br />' Matrix Water <br /> Date Analyzed 7/23/04 <br />' Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> Benzene 40 41 50 80 82 60-140 2 <br />' Toluene 42 42 50 84 84 60-140 0 <br /> Eth benzene 44 44 50 88 88 60-140 0 <br />' Hlenes 132 136 150 88 91 60-140 3 <br /> H - Gasoline 1054 1090 1000 105 109 60-140 4 <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 />' F'OTAI LY DLDICATED To CUSTOMER SA'TISF'ACTION <br />