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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fa,, (�62) 272-2789 <br />' QA/ <br /> QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 12/17/04 <br />' Date Extracted 12/17/04 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 49 49 50 98 98 70-130 20 0 <br />' Benzene 52 51 50 104 102 70-130 20 2 <br /> Trichloroethene 53 50 50 106 100 70-130 20 6 <br /> Toluene 56 54 50 112 108 70-130 20 4 <br /> Chlorobenzene 55 51 50 110 102 70-130 20 2 <br /> m, -X lenes 111 107 100 111 107 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 /> Chlorabenzene ND u /L 0 5 <br /> m, -X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA NDu /L 10 <br />' DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND u IL 1 <br />' 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 0 5 <br /> Eth (benzene ND u IL 0 5 <br /> Xylene ND u IL 0 6 <br /> Ethanol ND u /L 50 <br /> Methanol ND u IL 1000 <br /> 1 <br /> TOTALLY DEDICATED 1-0 CUSTOMER SATISFACTION <br />