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CALTECH Environmental Laboratories <br /> 1� 14��SaL F.i3� Av` <br /> TEIf Ph0 ( <br /> QA/QC Report <br />' Method <br /> 8260B <br /> Matrix Water <br /> Date Analyzed 12/29/03 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 48 49 50 86 98 60-140 2 <br /> Benzene 43 46 50 86 92 60-140 7 <br /> Trichloroethene 46 48 50 92 96 60-140 4 <br /> Toluene 47 50 50 94 100 60-140 6 <br />' Chlorobenzene 50 48 50 100 96 60-140 4 <br /> m, -X lenes 92 96 100 92 96 60-140 4 <br /> lie <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 />' Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> m,p-X lenes 0 70-130 <br /> 0 <br />' =(-)—I A[_I V Isl I� F{) C1,)S'T OMI-R SATISFACTION <br />