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CALTECH Environmental Laboratories <br /> 7111,4Rosecrans Avenue Pai anlOnn� CA 90723-3146 <br /> hone (562) 272-2700 Fa\ (562) 272-2789 <br />' QA/QC Report <br />' Method 82608 <br />' Matrix Water <br /> Date Analyzed 12/24/04 <br />' Date Extracted 12/24/04 <br /> Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 44 50 86 88 70-130 20 2 <br />' Benzene 43 47 50 86 94 70-130 20 9 <br /> Trichloroethene 52 56 50 104 112 70-130 20 8 <br /> Toluene 43 47 50 86 94 70-130 20 9 <br /> Chlorobenzene 52 56 50 104 1 112 70-130 20 8 <br />' m, -X lenes 97 98 100 97 1 98 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 /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 u /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 0 5 <br /> Eth lbenzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br />' Ethanol ND u /L 50 <br /> Methanol ND u /L 100 <br /> 1 <br />' TOTALI Y DEDIC ATF D TO C US]OMER SATISFACTION <br />