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1 <br /> CALTECH Environmental Laboratories <br />' O 6814 Rosecrans Avenue Paiamount CA 9072;- 3146 <br /> re <br /> honc (562) 272-2700 Fax (562) 272-2759 <br />' QA/QC Report <br /> po t <br />' Method 8260B <br /> Matrix Water <br /> Date Analy,-Wd 6/4/04 <br /> iUnits ug/L <br /> Perimeters 1 LSC LCSD Spike LCS % LCSD% Limits RPD <br /> Added Rec Ree <br /> 1,1-Dichlorc;�ihene 38 41 50 76 82 60-140 8 <br /> Benzene 39 39 50 78 78 60-140 0 <br /> Tnchloroetl"_ ie 38 40 50 76 SO 60-140 5 <br /> Toluene X 40 1 43 50 80 86 60-140 7 <br /> Chlorobenzene 49 1 51 50 98 102 60-140 4 <br /> m, -X lenes 86 91 100 86 91 60-140 6 <br /> LCS Laboratory Control Standard <br /> LCSD Labijj atory Control Standard Duplicate <br /> RPD Relat€ire Percent Difference of LCS and LCSD <br /> 1 <br /> Penmeters Blank Limits RPD <br />' 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br />' Tnchloroeth3ne 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> rtt,p-X lenes 0 70-130 <br /> 1'10 <br />' TOTALLY DLDICAI ID FO CUSTOMER SAI ISFACTION <br />