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CALTECH Environmental Laboratories <br />' 14 Rosecrans Avenue, Palan1011nt CA 90723-3146 <br /> O Telephone (562) 272-2700 <br /> 68Fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 2/18/05 <br />' Date Extracted 2/18/05 <br />' Perimeters Conc iu /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 40 41 50 80 1 82 70-130 20 2 <br />' Benzene 42 41 50 84 82 70-130 20 2 <br /> Trichloroethene 45 47 50 90 94 70-130 20 4 <br /> Toluene 43 46 50 86 92 70-130 20 6 <br /> Chlorobenzene 46 50 50 92 100 70-130 20 8 <br /> m -X lenes 90 97 100 90 97 70-130 20 7 <br />' LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard E)uplicate <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 ug/L. 0 5 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND u /L 05 <br /> I 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 a /L 1 <br /> TAME ND u /L 1 <br /> 1 2-Dichloroethane ND ij /L 05 <br /> EDB ND to /L 0 5 <br /> Eth (benzene ND u /L 05 <br /> o-X lene ND u /L 06 <br /> TCE ND ug/L 1 <br /> PCE ND a /L 1 <br /> I <br /> TOTALLY DEDICA"IIED 1,0 CUSTOMER SATISFACTIO1,4 <br />