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CALTECH Environmental Laboratories <br /> ' 6814 Rosecrans Avenue, Paramount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax, (562) 272-2789 <br /> 1 <br /> QA/QC Report <br /> Method 82608 <br /> ' Matrix Water <br /> ' Date Analyzed 10/25/04 <br /> Units ug/L <br /> ' Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 44 42 50 88 84 60-140 4 <br /> Benzene 43 42 50 85 84 60-140 2 <br /> Trichloroethene 46 47 50 92 94 60-140 2 <br /> i ' Toluene 42 44 50 84 88 60-140 1 4 <br /> Chlorobenzene 45 47 50 90 94 60-140 1 4 <br /> m, -X lenes 96 94 100 96 94 60-140 1 2 <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 /> 1 <br /> TOTALLY DEDIC ATED TO COST OMER SATISFACTION <br />