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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue, PalanlOUnt CA 90723-3146 Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> I <br /> Method 8260B <br />' Matrix Water <br />' Date Analyzed 10/18/04 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' 1,1-DichIoroethene 44 47 50 88 94 60-140 6 <br /> Benzene 45 45 50 90 90 60-140 0 <br /> Trichloroethene 44 48 50 88 96 60-140 8 <br />' Toluene 49 50 50 98 100 60-140 8 <br /> Chlorobenzene 54 56 50 108 112 60-140 4 <br /> m, -X lenes 108 111 100 108 111 60-140 1 3 <br /> 1 <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 /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> 1 m,p-X lenes 0 70-130 <br /> 1 <br /> 1 <br /> TOTALLY DEDICATED FOCUS I-OMER SATISFACTION <br />