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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue ParanIQUnt CA 90723-3 146 <br /> . • Telephone (562) 272-2700 f ax (562) 272-2789 <br /> QA/QC Report <br />' Method 82608 <br /> tMatrix Water <br /> Date Analyzed 2/12/04 <br /> 1 Units ug/L <br />' Perimeters LSC LCSD Spike LCS% LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dic.-loroethene 41 44 50 82 88 60-140 7 <br />' Benzene 40 39 50 80 78 60-140 2 <br /> Trichloroethene 46 45 50 92 90 60-140 2 <br /> Toluene 43 40 50 86 80 60-140 7 <br />' Chlorobenzene 50 45 50 100 90 60-140 10 <br /> m,p-X lenes 90 88 100 90 88 60-140 2 <br /> t <br /> LCIS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Dfffere3nce 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, -Xylenes 0 70-130 <br /> 1 <br /> ' TOTAI LY DEDICATED TO CUSTOMER SATISFACTION <br />