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CALTECH Environmental Laboratories <br /> O 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> ! Telephone {562) 277-2700 t'ax (562) 272-2789 <br /> QA/ r <br /> QC Report <br /> IMethod 8260B <br /> Matrix- Water <br /> Date Analyzed 4121104 <br /> IUnits ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 44 42 50 88 84 60-140 4 <br /> Benzene 48 46 50 96 92 60-140 4 <br /> Trichloroethene 47 47 50 94 94 60-140 0 <br /> Toluene 50 49 50 1 100 1 98 60-140 2 <br /> Chlorobenzene 51 47 1 50 1 102 94 60-140 8 <br /> m, -X lenes 102 96 100 1 102 96 60-140 6 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Limits RPD <br /> 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br /> I Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> m,p-Xylenes 0 70-130 <br /> I <br /> TOTAL LY DEDICAFED TO CUSTOMER SATISFACTION <br />