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i <br /> CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Pat anwUnt CA 90723-3146 <br /> S O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> I <br /> QA/QC Report <br /> Method 82606 <br /> Matrâ–ºx Water <br /> Date Analyzed 3/11/04 <br /> Units- ug/L <br /> IPerimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec. <br /> I 1,1-Dichloroethene 44 47 50 88 94 70-130 6 <br /> Benzene 46 49 50 92 98 70-130 6 <br /> Trichloroethene 42 40 50 84 80 70-130 4 <br /> Toluene 47 50 50 94 100 70-130 6 <br /> Chlorobenzene 48 51 50 96 104 70-130 8 <br /> m, -Xylenes 108 112 100 108 112 70-130 4 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Pernmeters 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 /> I <br />' TO 1-AI LY DFDIC AFED To C USTOMLR SATISFACTION <br />