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1 <br /> CALTECH Environmental Laboratories <br /> Ile Rosecrans Avenue, PanU[a �ont CA 90723-3146 <br /> 068 <br /> Tele14 phone (562) 272-2700 Fax (562) 272-2789 <br /> 1 <br /> QA/QC Report <br /> 1 <br /> Method 8260B <br /> Matrix Water <br />' Date Analyzed 10/14/04 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 49 51 50 98 102 60-140 4 <br /> Benzene 52 55 50 104 110 60-140 6 <br /> Trichloroethene 50 54 50 100 108 60-140 8 <br /> Toluene 50 53 50 100 106 60-140 6 <br /> Chlorobenzene 55 57 50 1 110 114 60-140 4 <br /> m, -X lenes 112 120 100 112 120 60-140 7 <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 /> TOTALLY DCDICAFED 10 CUSTOMER SATISFACI ION <br />