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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Parariou it CA 90723-3 146 <br /> Telephone (562) 272-2700 Fax 1562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 7/7/03 <br /> Units ug/L <br /> Perimeters LSC-1 LCSD-1 Spike LCS% LCSD % Limits RPD <br /> Added Rec. Rec. <br /> 1,1-Dichloroethene 58 56 50 116 112 60-140 4 <br /> Benzene 47 I 47 50 94 94 60-140 0 <br /> Trichloroethene 49 47 50 98 94 60-140 4 <br /> Toluene 49 1 47 50 98 94 60-14D 4 <br /> Chlorobenzene 41 41 50 82 82 60-140 0 <br /> m, -X lenes 99 91 100 99 91 60-140 a <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 /> TOTALLY DLDICAI LD FO Cl1S 1 OMER SATISFACTION <br />