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CAL TECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> . O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QNQC Report <br /> Method 8015M /8021 B <br /> Matrix Water <br /> Date Analyzed 12/23/04 <br />' Date Extracted 12/23/04 <br /> Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> Benzene 40 42 50 80 84 70-130 20 4 <br /> Toluene 4142 50 82 84 70-130 20 2 <br /> Eth benzene 45 47 50 90 94 70-130 20 4 <br />' <br /> Xylenes 90 93 100 90 93 70-130 20 3 <br /> TPH - Gasoline 1027 1051 1000 103 105 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 /> 1 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 u /L 05 <br />' <br /> ,Xylenes ND ug/L 1 <br /> TPH - Gasoline ND a /L 50 <br /> I <br /> TOTALLY DEDICNFED -1 O CUS FOMER SATISI=AM ION <br />