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CA.L.T.ECH Environmental Laboratories <br />' 6814 Rosecfans Avenue Paramount CA 90723-3146 <br /> • Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> 1 <br /> Method 8260B <br />' Matrix Water <br /> Date Analyzed 9/7/04 <br /> 1 Units ug/L <br />' Perimeters LCS LCSD Spike LCS % LCSD % Limits RPD <br /> Added Rec Rec <br />' 1,1-Dichloroethene 38 38 50 78 78 60-140 0 <br /> Benzene 49 45 50 98 90 60-140 8 <br /> Trichloroethene 45 48 50 90 96 60-140 6 <br />' Toluene 46 44 50 92 88 60-140 4 <br /> Chlorobenzene 49 51 50 98 102 60-140 4 <br /> m,p X lenes 100 99 100 100 99 1-6-0--l-4-0—T 1 <br /> 10 <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 /> 1 1,1-Dichloroethene 0 70-130 <br /> Benzene 0 70-130 <br /> 1 rnchloroethene 0 70-130 <br /> Toluene 0 70-130 <br /> Chlorobenzene 0 70-130 <br />' �rn,p-Xylenes 0 70-130 <br /> i <br /> I <br /> I 10 TALLY DLD[C.Ai <br /> ED TO CUSTOMER SATISFACTION <br />