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i <br /> CALTECH Environmental Laboratories <br /> i6;i 14 Ro,ec,ans ^�cn to L A 90723-3 i 45 <br /> 27-'-c7ray t562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> IMatnx Water <br /> Date Analyzed 7/9/02 <br /> IUnits ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec. <br /> 1,1-Dichloroethene 52 51 50 104 102 70.130 2 <br />' Benzene 50 48 50 100 96 70-130 4 <br /> Trichloroethene 49 49 50 98 98 70-130 0 <br /> Toluene 45 46 50 90 92 70-130 2 <br />' Chlorobenzene 48 48 50 96 96 70-130 0 <br /> rn, -X lenes 96 92 100 96 92 70-130 4 <br /> lie <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 />' Tnchloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> n1, -X lenes 0 70-130 <br /> 1 <br /> • <br /> 1 1 OTALLY DL-DICATED TO CUSTOMER SATISFACTION <br />