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CALTECH Environmental Laboratories <br /> 681 h ,nr Pcr,,,is vi'ib C"�Se"dT1ounl CA )'072 -v i46 <br /> i a), (552) 272-2783 <br /> QA/QC Report <br /> Method 8260B <br /> ' Matrix Water <br /> 1 Date Analyzed 10/17/03 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> _ Added Rec Rec <br /> 1,1-Dichloroet'iene 48 43 50 96 86 60-140 10 <br /> Benzene 47 45 50 94 90 60-140 4 <br /> Trichloroethene 46 40 50 92 80 60-140 13 <br /> ' Toluene 55 50� 50 110 100 60-140 10 <br /> Chlorobenzene 59 56 50 118 112 60-140 6 <br /> rn, -X lenes 124 120 100 124 120 60-140 4 <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, -X lenes 0 70-130 <br /> 1 <br /> TC TALIA I)I.I-YICA1t I) To CUSTOMER SATISFACTION <br /> j i E Q I <br />