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CALTECH Environmental Laboratories <br />' O6814 Rosecrans Avenue, Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> 1 <br /> QA/QC Report <br />' Method <br /> 8260B <br />' Matrix Water <br /> Date Analyzed 11/13/03 <br /> 1 Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 47 46 50 94 92 60-140 2 <br /> Benzene 53 51 50 106 102 60-140 4 <br /> Trichloroethene 51 50 50 102 100 60-140 2 <br /> Toluene 58 55 50 116 110 60-140 6 <br />' Chlorobenzene 52 51 50 104 102 60-140 2 <br /> m, -X lenes 133 128 100 133 128 60-140 4 <br /> li <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 /> Tnchloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> m, -X lenes 0 70-130 <br /> I <br /> I <br /> I <br /> i <br /> ITOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />