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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue I'aia]llOUnl CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> I <br /> Method 8015M 18021 B <br /> Matrix Water <br />' Date Analyzed 7121104 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Ree Rec <br />' Benzene 44 45 50 88 90 60-140 2 <br /> Toluene 44 45 50 88 90 60-140 2 <br /> Eth benzene 40 42 50 80 84 60-140 4 <br />' <br /> Xylenes 130 133 150 87 1 89 60-140 2 <br /> TPH - Gasoline 1 955 982 1 1000 96 1 98 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 /> 1 <br /> 1 <br /> • <br /> IOIAL1 Y DI-DIC AMD TO CUSTOMER SATISFACTION <br />