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1 <br /> CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> • O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> 1 <br /> QA/QC Report <br /> Method 8015M /8021 B <br /> Matrix. Water <br />' Date Analyzed 11/24/04 <br /> Date Extracted 11/24/04 <br />' Perimeters Conc u IL Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br />' Benzene 46 47 50 92 94 70-130 20 2 <br /> Toluene 48 48 50 96 98 70-130 20 2 <br /> Eth benzene 48 47 50 96 97 70-130 20 1 <br /> Xylenes 102 97 100 102 97 70-130 20 5 <br /> TPH - Gasoline 1061 1085 1000 1 106 109 1 70-130 1 20 3 <br /> lie <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 /> Xylenes ND u /L 1 <br /> TPH - Gasoline ND u /L 50 <br /> I <br /> I <br /> • <br /> I <br /> TOTALLY DEDICA-I IID TO CUSTOMER SATISFACTION <br />