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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8015M/8021 B <br />' Matrix Water <br /> Date Analyzed 6118103 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> _ Added Ree Rec <br /> Benzene 47 49 50 94 98 70-130 4 <br /> Toluene 47 49 50 94 98 70-130 4 <br /> Eth benzene 47 48 50 94 96 70-130 2 <br /> Xylenes 144 152 1 150 96 1 101 1 70-130 5 <br /> TPH - Gasoline 1 1013 1010 1000 101 101 1 60-140 0 <br />'• LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br />' RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br />' TOTALLY DI DIC AFLI) TO CUS FOMER SATISFACTION <br />