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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> • O Telephone (562) 272-2700 Fa- (562) 272-2789 <br /> QA/QC Report <br /> Method 8260E <br /> Matra; Water <br /> Date Analyzed 10/22/03 <br /> Units ug/L. <br /> ' LSC LCSD Spike LCS% LCSD% Limits RPD <br /> Perimeters R <br /> Added Ree Rec <br /> 1,1-Dic,hloroethene 48 49 50 96 98 60-140 2 <br /> Benzene 45 45 1 50 90 90 60-140 0 <br /> Trichloroethene 44 43 50 88 86 60-140 2 <br /> Toluene 48 53 50 96 106 60-140 10 <br /> Chlorobenzene 45 49 50 90 98 60-140 8 <br /> m, -X lenes 112 126 100 112 126 60-140 12 <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-i 30 <br /> ' m,p-X Iwnes 0 70-130 <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />