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CALTECH Environmental Laboratories <br />' 68Rosecrans Avenue Paramount CA 90723-3146 <br /> O Tele14 mu <br /> phone (562) 272-2700 Fax (562) 272-2789 <br /> I <br /> QA/QC Report <br /> I <br /> Method 8015M /8021 B <br /> Matrix Water <br />' Date Analyzed 1/21/05 <br /> Date Extracted 1/21/05 <br />' Perimeters Cone u /L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br />' Benzene 47 48 50 94 96 70-130 20 2 <br /> Toluene 42 45 50 84 90 70-130 20 6 <br /> Eth benzene 45 47 50 90 94 70-130 20 4 <br />' <br /> Xylenes 92 99 100 92 99 70-130 20 7 <br /> TPH - Gasoline 991 1011 1000 99 1 101 70-130 20 2 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br />' Method Blank <br />' Perimeters Method Units Det <br /> Blank Limit <br />' MTBE ND u /L 05 <br /> Benzene ND u /L 05 <br /> Toluene ND u /L 05 <br /> Eth benzene ND ug/LLJ06 <br /> XvlpnPs ND uq/L 1 1 <br /> TPH - Gasoline 1 ND ug/L­-1 ug/L­-150 <br /> 1 <br /> I <br /> I <br /> TOTALLY DEDICALFD TO CUSTOMER SATISFACTION <br />