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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Pai ajnou11t CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> ' Method 82606 <br /> ' Matrix Water <br /> Date Analyzed 116/05 <br /> ' Date Extracted 1/6/05 <br /> ' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 49 50 96 98 70-130 20 2 <br /> Benzene 48 50 1 50 96 100 70-130 20 4 <br /> Trichloroethene 47 49 50 94 98 70-130 20 4 <br /> Toluene 51 53 50 102 106 70-130 20 4 <br /> Chlorobenzene 53 51 50 106 102 70-130 20 4 <br /> m, -X lenes 1 101 98 100 101 1 98 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 /> ' Perimeters Method Units Det_ <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> ' Benzene ND u /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND ug/L 0 5 <br /> m,p-X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> ' DIPE ND ug/L 1 <br /> ETBE ND u /L i <br /> TAME ND ug/L 1 <br /> 1,2-D[chloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth lbenzene ND u /L 05 <br /> ' o-X lene ND ug/L 0 6 <br /> TCE ND u /L 1 <br /> PCE ND ug/L 1 <br /> 1 <br /> 1 <br /> TOTALLY DEDICArEt) TO CI)STONIf R SATISFACTION <br />