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CALTECH Environmental Laboratories <br /> 6$14 Rosecrans Avenue Pai amount CA 90723-3146 <br /> • O Telephone (562) 272-2700 Fax (562) 272-2799 <br /> Q/VQC Report <br /> t <br /> Method 8015M /8021 B <br />' Matrix Water <br />' Date Analyzed 2/17/05 <br /> Date Extracted 2117/05 <br /> Perimeters Conc u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br />' Benzene 51 53 50 102 106 70-130 20 4 <br /> Toluene 46 49 50 92 98 70-130 20 6 <br /> Eth benzene 47 50 50 94 100 70-130 20 6 <br /> .Xylenes 97 104 100 97 104 70-130 20 7 <br /> TPH - Gasoline 1065 1099 1000 107 110 70-130 1 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 ug/L 0 5 <br /> Benzene ND u /L 05 <br /> Toluene ND u /L 05 <br /> Eth benzene ND u /L 05 <br /> r <br /> Xylenes ND ug/L 1 <br /> TPH - Gasoline ND u /L 50 <br /> r <br /> r <br /> • <br /> r <br /> TOTALLY DLDICAFLD TO CUSTOMER SATISFACTION <br />