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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue PararnOLlnt CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8260B <br /> Matrix Water <br /> Date Analyzed 1211/04 <br />' Date Extracted 1211104 <br />' Perimeters Cone u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 49 47 50 98 94 70-130 20 4 <br />' Benzene 50 50 50 100 100 70-130 20 0 <br /> Trichloroethene 52 49 50 102 98 70-130 20 4 <br /> Toluene 51 50 50 102 100 70-130 20 2 <br />' Chlorobenzene 50 49 1 50 100 98 70-130 20 2 <br /> m, -X lenes 101 1031 100 101 103 1 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 /> Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u IL 1 <br /> 1 Benzene ND u /L 05 <br /> Trichloroethene ND u IL 05 <br /> Toluene ND ug/L 05 <br /> Chlorobenzeno ND u IL 05 <br /> rn,p-X lenes ND u /L 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 05 <br /> Eth (benzene ND u /L 05 <br /> o-X leve ND u /L 06 <br /> TCE ND u /L 05 <br /> PCE ND ug/L 05 <br /> 1 <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />