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1 <br /> CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> 1 <br /> QA/QC Report <br /> 1 <br /> Method 8015M 18021 B <br /> 1 Matrix Water <br /> Date Analyzed 11/16/04 <br /> iDate Extracted 11/15/04 <br />' Perimeters Conc ug/L. Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br />' Benzene 49 50 50 98 100 70-130 20 2 <br /> Toluene 47 47 50 94 94 70-130 20 0 <br /> Eth benzene 46 47 50 92 94 70-130 20 2 <br />' <br /> Xylenes 97 97 100 94 97 70-130 20 3 <br /> TPH - Gasoline 1020 1030 1000 102 103 70-130 20 1 <br /> TPH Diesel 1930 2003 2000 97 100 70-130 20 3 <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 u /L 05 <br /> 1 <br /> Xylenes ND ug/L 1 <br /> TPH - Gasoline ND u /L 50 <br /> TPH - Diesel ND u /L 50 <br /> i <br /> 1 <br /> 1 <br /> i <br /> 1 <br /> TOTALLY DEDICNI-ED TO CUSTOMER SATIS>~AC-ION <br />