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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 907-,3-3146 <br /> Telenhone (562) 272-2700 I-ax (562) 272-2789 <br /> QA/QC Report <br /> Method 82608 <br /> Matrix Water <br /> Date Analyzed 4/2/04 <br /> ' Units ug/L <br /> Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Rec Rec <br /> ' 11,1-Dichloroethene 49 51 50 98 102 60-140 4 <br /> Benzene 41 42 50 82 84 60-140 2 <br /> Inchloroethene 42 47 50 84 94 60-140 12 <br /> Toluene 44 48 50 88 96 60-140 9 <br /> Chlorobenzene 48 52 50 1 9 1 104 1 60-140 8 <br /> m, -X lenes 99 104 100 1 99 1 104 1 60-140 5 <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 /> I <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 /> ' rn,p-X lenes 0 70-130 <br /> rOTAI I Y DI=DICArED I0 C USTOMFR SATISFACTION <br />