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CAL -TECH Environmental Laboratories <br /> ' 6814 Rosecrans Avenue Paramount CA 90723-3 146 <br /> • Telephone (5562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> ' Matrix Water ti <br /> ' Date Analyzed 6120/03 <br /> Units ug/L <br /> ' Perimeters LCS LCSD Spike LCS% LCSD ° <br /> p S /oL[mits RPD <br /> Adder! Ree Rec <br /> ' 1,1-Dichloroethene 50 53 50 100 106 160-140 6 <br /> Benzene 44 47 50 88 94 60-140 7 <br /> Trichloroethene 46 52 50 92 104 60-140 13 <br /> ' Toluene 41 45 50 82 90 60-140 10 <br /> Chlorobenzene 39 42 50 78 84 60-140 8 <br /> m, -X lenes 78 84 100 78 84 60-140 8 <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 I 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 70-130 <br /> ' m, -X lenes 0 70-130 <br /> TONALLY DEDICAI LD -IO CUSTOMER SATISFACTION <br />