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CALTECH Environmental Laboratories <br />' O6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (]62) 272-2700 Fax (562) 272-2789 <br /> I <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 5/7/04 <br /> IUnits ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 42 46 50 84 92 60-140 10 <br />' Benzene 43 45 50 86 90 60-140 5 <br /> Trichloroethene 40 45 50 80 90 60-140 12 <br /> Toluene 44 j 49 50 88 98 60-140 11 <br />' Chlorobenzene 46 1 52 50 92 104 60-140 14 <br /> m, -X lenes 88 104 100 88 104 60-140 18 <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> Perimeters Blank Limits RPD <br />' 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br />' Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br />' m, -Xylenes 0 70-130 <br /> 1 <br /> 1 <br />' -I OTALErY DF t)[C ATTFD `[O CIJSTOMER SATISFACTION <br />