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i <br /> CALTECH Environmental Laboratories <br /> O6814 Rosecrwis A lcni.e Par nmUnt C % 9072--31 46 <br /> Telephone (7621 2 Ci(� f a (a62; 2�- 2739 <br /> QA/QC Report <br /> Method 8260E <br /> Matrix Soil <br /> Date Analyzed 12/12/03 <br />' Unita ug/Kg <br />' Perimeters LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Added Ree Rec <br />' 1,1-Dichloroethene 44 47 50 88 94 60-140 7 <br /> Benzene 46 49 50 92 98 60-140 7 <br /> Trichloroethene 43 44 50 86 88 60-140 2 <br />' Toluene 52 51 50 104 102 60-140 2 <br /> Chlorobenzene 53 53 50 106 106 60-140 0 <br /> m, -Xylenes 105 104 50 105 104 1 60-140 1 <br /> I � i <br /> LCS Laboratory Control Standard <br />' LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <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, -X lenes 0 70-130 <br /> 1 <br /> 1 <br /> 1 <br />' TOTAI L"Al i)f 1)1'( A I 1 I) 1 i) C 11S 10Ml=P ", iSFaCTION <br />