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CALTECH Environmental Laboratories <br /> QA/QC Report <br /> 1 <br /> Method 8260E <br /> ' Matrix Water <br /> Date Analyzed 1/28/03 <br /> Units ug/L <br /> ' Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-DEchloroethene 49 50 50 98 100 T 70-130 2 <br /> Benzene 47 48 50 94 96 70-130 2 <br /> Trichloroethene 48 54 50 96 108 70-130 10 <br /> Toluene 47 48 50 94 96 70-130 2 <br /> Chlorobenzene 54 54 50 108 108 70-130 0 <br /> rn, -X lenes 112 115 100 112 115 70-130 3 <br /> LCS Laboratory Control Standard <br /> ' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> ti <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 /> Chforobenzene 0 70-130 <br /> ' m,p-X lenes 0 70-130 <br /> • <br />