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CALTECH Environmental Laboratories <br />' IOD 6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> • Telephone t562) 272-2700 Fa- '562) 272-2781) <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 4119/04 <br />' Units ug/L <br />' Perimeters LSC LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec. <br /> 1,1-Dichloroethene 41 40 50 82 80 60-140 2 <br />' Benzene 49 45 50 98 90 60-140 8 <br /> Trichloroethene 46 42 50 92 84 60-140 9 <br /> Toluene 47 44 50 94 88 1 60-140 6 <br />' Chlorobenzene 50 47 50 100 94 60-140 6 <br /> m,p-X lenes 97 90 100 97 90 60-140 7 <br /> LCS Laboratory Control Standard <br /> 1 LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> 1 <br /> Perimeters Blank Limits RPD <br /> i1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br /> 1 Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> m,p-X ienes 0 70-130 <br /> 1 <br /> i <br /> 1 <br /> • <br /> 1 <br /> 1 TOTALLY IN DICAILD l`O CUSTOMER SATISFACTION <br />