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i <br /> CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenuc Paian1011llt 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 1/17/05 <br /> IDate Extracted 1/17/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Ree RPD <br /> 1,1-Dichloroethene 46 45 50 92 90 70-130 20 2 <br /> Benzene 49 51 50 98 102 70-130 20 4 <br /> Trichloroethene 51 47 50 102 94 70-130 20 8 <br /> Toluene 1 44 42 50 88 84 70-130 20 4 <br /> Chlorobenzene 44 43 50 88 86 70-130 1 20 2 <br /> m, -X lenes 90 1 89 100 90 89 70-130 20 1 <br /> lie 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 05 <br />' Trichloroethene ND u /L 05 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND u /L 05 <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 /L 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND u /L 0 ,9 <br /> EDB ND u /L 05 <br /> Eth lbenzene ND u /L 05 <br /> o-X lene ND ug/L 06 <br /> TCE ND u /L 1 <br /> . PCE ND ug/L 1 <br />' rOTALLY DEDICATED 10 C USTOM ER SAV ISFACTION <br />