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CALTECH Environmental Laboratories <br />' 68 t 4 Rosecrans Avenue Pai amount CA 90723-3 146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br /> Matrix Water <br /> Date Analyzed 12/2104 <br />' Date Extracted 12/2/04 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 41 41 50 82 82 70-130 20 0 <br />' Benzene 47 45 50 94 90 70-130 20 4 <br /> Trichloroethene 48 48 50 96 96 70-130 20 0 <br /> Toluene 51 50 50 102 100 70-130 20 2 <br /> Chlorobenzene 49 46 50 98 92 70-130 20 6 <br /> m, -X lenes 103 104 100 103 104 70-130 20 1 <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 /L 1 <br /> Benzene ND u IL 05 <br /> Trichloroethene ND u /L 05 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND ug/L 0 5 <br /> m, -X lenes ND ug/L 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND u /L 1 <br /> ETBE ND u IL 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND ug/L 0 6 <br /> TCE ND u /L 05 <br /> PCE ND ug/L 05 <br /> TO1-ALLY DEDICAI-ED ro CUSTOMER SATISFACTION <br />