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CALTECH Environmental Laboratories <br /> • a68 14 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 f as (362) 272-2789 <br /> QA/QC Report <br /> I <br /> Method 8260B _ <br /> Matrix Water <br /> Date Analyzed 5/27/04 <br />' Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 43 42 50 86 84 60-140 2 <br /> Benzene 42 42 50 84 84 60-140 0 <br /> Trichloroethene _ 50 4.5 50 100 90 60-141D 10 <br /> Toluene 40 w 50 80 76 60-140 4 <br />' Chlorobenzene 43 45 50 86 90 60-140 4 <br /> m,p-X Penes 99 104 100 99 104 60-140 5 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS amd LCSD <br /> Perimeters Blank Limits RPD <br /> 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70--930 <br /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-1730 <br />' m,p-X lenes 0 70-1730 <br /> I <br /> ITOTALLY DEDIC AI ED TO CUS T OMER SATISrACTION <br />