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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avcrue Pal Milo,IfIt C 1 90723-3 146 <br /> (0) Telephone (5621 272-2700 I ,�: ,5621 272-2780 <br />' QA/ <br /> QC Report <br />' Method 8260B <br />' Matrix Sall <br /> Date Analyzed 7/28/04 <br />' Units ug/Kg <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br />' 1,1-Drchloroethenc 41 40 50 82 80 60-140 2 <br /> Benzene 53 55 50 106 110 60-140 4 <br /> Trichforoethene 47 46 50 94 92 60-140 1 2 <br /> Toluene 45 47 50 90 94 60-140 4 <br />' Chlorobenzene 50 52 50 100 104 60-140 1 4 <br /> m,p-X lenes 86 90 100 86 90 60-140 4 <br /> lie <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 /> rri,p-Xylenes 0 70-130 <br /> I <br /> t <br /> i <br /> TOTAL Y DLDIC AFED FO CUSTOMEF. ;S,,TISI~ACTION <br />