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CALTECH Environmental Laboratories <br /> 6814 Rosecrans AveI]ue <br /> relephone (562127)--71,0 <br /> ' <br /> QA/QC Report <br /> ' Method 8260B <br /> ' Matrix Water <br /> Date Analyzed 4/4/05 <br /> ' Date Extracted 4/4/05 <br /> ' Perimeters Conc u /L Spike Recove % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 46 50 50 92 100 70-130 20 8 <br /> ' Benzene 51 51 1 50 102 102 70-130 20 0 <br /> Trichloroethene 50 51 50 100 102 70-130 20 2 <br /> Toluene 49 49 50 98 98 70-130 20 0 <br /> ' Chlorobenzene 48 54 50 96 108 70-130 1 20 12 <br /> m, -X lenes 103 107 100 103 107 70-130 20 4 <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 u /L 0 5 <br /> ' Chlorobenzene ND u /L 0 5 <br /> m, -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 1 <br /> TAME ND u /L 1 <br /> ' 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 05 <br /> Eth lbenzene ND u /L 0 5 <br /> ' o-X lene ND u /L 0 6 <br /> TCE ND ug/L 1 <br /> PCE - - - - -ND -u /L-- --1-- - - - - -- - - -- - - - - - - <br /> 1 <br /> TOTA[.i.Y DI-JiICA � I [1 <br />