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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 90723-3146 Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br /> IMethod 8260B <br />' Matrix Water <br /> Date Analyzed 11/22/04 <br /> Date Extracted 11/22/04 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 52 50 96 104 70-130 20 8 <br />' Benzene 52 56 50 104 112 70-130 20 8 <br /> Trichloroethene 51 54 50 102 108 70-130 20 6 <br /> Toluene 48 52 50 1 96 102 70-130 20 6 <br />' Chlorobenzene 52 53 50 104 106 70-13020 2 <br /> m, -X lenes 101 109 100 101 109 70-130 1 20 8 <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 05 <br /> Trichloroethene ND u /L 05 <br /> Toluene ND ug/L 05 <br /> Chlorobenzene ND ug/L 05 <br /> Im,p-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 u /L 1 <br />' 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u /L 05 <br /> Eth [benzene ND u /L 05 <br /> Io-X lene ND u /L 06 <br /> r <br /> TOTALLY DF-DICAFED TO CUSTOMER SATISFACTION <br />