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I <br /> CALTECH Environmental Laboratories <br /> I6$14 Rosecrans Avenue, Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> I <br /> QA/QC Report <br /> Method 8260E <br /> IMatrix Water <br /> Date Analyzed 7/13/04 <br /> Units ug/L <br /> IPerimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Ree Ree <br /> I 1,1-Dichlaroethene 42 46 50 841 92 60-140 10 <br /> Benzene 48 48 50 96 96 60-140 0 <br /> Trichloroethene 46 44 50 92 88 60-140 4 <br /> I Toluene 50 47 50 100 94 60-140 6 <br /> Chlorobe-nzene 57 55 50 114 110 60-140 4 <br /> m, -Xylenes 110 i 106 100 110 106 60-140 4 <br /> I � <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I <br /> Perimeters Blank Limits RPD <br /> I1,1-Dichtoroethene 0 70-130 <br /> Benzene 0 70-130 <br /> Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> rn, -X leases 0 70-130 <br /> TOTALLY DEDICATEU TO CUSTOMER SATISFACTION <br />