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CALTECH Environmental Laboratories <br />' 6814 Rosecia i- Avenue Pafamount CA 907-'3-3146 <br /> • O lelel�hone (5621272-2'00 1 a (5521) 2'72-7789 <br /> QA/QC Report <br /> Method <br /> 8260B <br />' Matrix Water <br /> Date Analyzed 7/7/04 <br /> Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dtchloroethene 43 41 50 86 82 60-140 4 <br /> Benzene 46 42 50 92 84 60-140 9 <br /> Trichloroethene 43 41 50 86 82 60-140 4 <br /> Toluene 45 45 s 50 90 90 60-140 0 <br /> Chlorobenzene 50 47 50 100 94 60-i 40 6 <br /> m, -Xylenes 105 99 100 105 99 60-140 6 <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,p-X lenes 0 70-130 <br /> ITOTA1 LY DFDIC.AI FED TO C t15TOMER Sf'JIS'r'ACI ION <br />