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CALTECH Environmental Laboratories <br />' 6$94 Rosecrans Avenue Paran3ount CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 82606 <br />' Matrix Sod <br /> Date Analyzed 9112/03 <br />' Units ug/Kg <br />' Perimeters LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloroethene 47 46 50 94 92 60-140 2 <br /> Benzene 44 43 50 88 86 60-140 2 <br /> Trichloroethene 49 51 50 98 102 60-140 4 <br /> Toluene 45 48 50 90 96 60-140 6 <br />' Chlorobenzene 52 56 50 104 112 60-140 8 <br /> m, -X lenes 1l1 118 50 111 118 60-140 7 <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 /> m, -X lenes 0 70-130 <br /> 1 <br />' TOTALLY DLDICNI ED TO CUSTOMER SATISFACTION <br />