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CAL TECH Environmental Laboratories <br /> 3�:-4 A,1�11 <br /> C 6' i U_`, �r:` - <br /> 4 <br /> QA/QC Report <br /> Method: 8260B <br /> Matrix: Water <br /> Date Analyzed: 5/1/03 <br /> Units: ug/L <br /> Perimeters LSC LGSDJ Spike LCS % LCSD% Limits RPD <br /> Added Rec. Rec. <br /> 1,1-Dichforoethene 44 <br /> 43 50 88 86 60-140 2 <br /> Benzene 4.8 k47 50 96 94 60-140 4 <br /> Trichloroethene 49 Jl 48 50 98 96 60-140 4 <br /> Toluene 49 11.46 50 98 96 60-140 4 <br /> ,Uhlorobenzene 48 47 50 96 94 60-140 2 <br /> Im,2-Xylenes 96 88 _100 96 88 60-140 8 <br /> LCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> is <br /> I I <br /> Blank Limits <br /> Perimeters RPD <br /> YP <br /> L I — <br /> �j 1,1-Dichloroethene— 0 70-130 <br /> F Benzene 0 70-130 <br /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> rn,p-Xylenes 0 70130 <br /> L <br /> TOIk f LY ElF,D i <br />