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CALTECH Environmental Laboratories <br />' 6814 Rosecrans A\,enue PuranIOUnt to 90723-3146 <br /> telephone (562) 272-2700 fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 3/30104 <br />' Units og/L <br />' Perimeters --CS-CF LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 44 44 50 88 88 60-140 0 <br />' Benzene 50 51 50 100 102 60-140 2 <br /> Trichloroethene 43 45 50 86 90 60-140 4 <br /> Toluene 46 44 50 92 88 60-140 4 <br />' Chlorobenzene 46 43 50 92 86 60-140 6 <br /> rn -X lenes 102 96 100 102 96 60-140 6 <br /> LCS Laboratory Control Standard <br /> LCSD 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 /> Irn,p-X lenes 0 70-130 <br /> i <br /> I <br /> TOTALLY DL.DiCAI'LD ro CUSTOMER SATISFACTION <br />