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CALTECH Environmental Laboratories <br /> I 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 3/8/05 <br />' Date Extracted 3/8/05 <br />' Perimeters Cone u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 40 40 50 80 80 70-130 20 0 <br />' Benzene 49 47 50 98 94 70-130 20 4 <br /> Trichloroethene 44 47 50 88 94 70-130 20 6 <br /> Toluene 47 48 50 94 96 70-130 20 2 <br />' Chlorobenzene 48 51 50 96 102 70-130 20 6 <br /> m, -X lenes 88 95 100 88 95 70-130 20 7 <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 ug/L 05 <br /> Toluene ND ug/L 05 <br /> Chlorobenzene ND u /L 05 <br />' rn,p-X lenes ND u /L 06 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br />' DIPE ND u /L 1 <br /> ETBE ND ug/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 /> o-X lene ND u /L 06 <br />' TCE ND = /L 1 <br /> PCE ND u /L 1 <br /> I <br /> TOTALI Y DLDICA7FLD "C O CLJSTOMER SATISFACTION <br />