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CALTECH Environmental Laboratories <br /> • O 6814 Rosecrans Avenue Pajaniount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562 272-2789 <br /> QA/QC Report <br /> Method 6260B <br /> Matnx Water <br /> Date Analyzed 1/5/04 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dschloroethena 44 43 50 88 86 60-140 <br /> Benzene T 42 47~ 50 84 94 60-140 12 <br /> Trichloroethene 40 42 50 80 84 60-140 _5 <br /> Toluene 52 56 50 104 112 60-140 8 <br /> Chlorobenzene - 54 57 50 108 114 60-140 6 <br /> m, -X lenes 102 108 50 102 108 60-140 6 <br /> • <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 /> IOTA[ LY DEDIC!" LD TO CCISTOMI-R S,\TISFACTION <br />