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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 90723-3 146 <br /> Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> ' Method 82608 <br /> Matrix Nater <br /> Date Analyzed 4/26104 <br /> ' Units ug/L <br /> iPerimeters LCS LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br /> 1,1-Dic1loroethene 45 50 50 90 100 60-140 11 <br /> Benzene 47 48 50 94 96 60-140 2 <br /> Trichloroethene 49 47 50 98 94 60-140 4 <br /> Toluene 42 44 50 84 88 60-140 5 <br /> Chlorobenzene 47 48 50 94 96 60-140 2 <br /> m, -X lenes 90 92 100 90 92 60-140 2 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Dif-erence of LCS and LCSID <br /> i <br /> Perimeters Blank Limits RPD <br /> ' 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br /> i Trichloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br /> m,p-X lenes 0 70-130 <br /> i <br /> iTOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />