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CALTECH Environmental Laboratories <br /> 768,1,4Rosecrans Avenue Paramount C4 90723-3146 <br /> • hone (562) 272-271 00 Fax (762) 272-27$9 <br /> 1 <br /> QA/QC Report <br /> Method 8260B <br /> IMatrix Water <br /> I Date Analyzed 7111103 <br /> Units ug/L <br /> IPerimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 44 42 _ 50 88 84 60-140 4 <br /> Benzene 46 43 50 92 86 60-140 6 <br /> Trichloroethene 52 49 50 104 98 60-140 6 <br /> Toluene 47 43 50 94 86 60-140 8 <br /> Chlorobenzene 49 48 50 98 96 60-140 2 <br /> m, -X lenes 100 98 100 100 98 60-140 2 <br /> LCS Laboratory Control Standard <br /> ILCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <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 /> Im, -X lenes 0 70-130 <br /> TOTALLY DFDICAI'LD 10 CUSTOMER SATISFACTION <br />