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r r <br /> AL TECH Environmental Laboratories <br /> • O 6814 Rosecrans Avenue ParanIount CA 90723-3146 <br /> Telephone (562) 272-2770 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 3/30/04 <br /> Units ug/L <br /> Perimeters LSC LCSD Spike LCS % LCSD % F Limits RPD <br /> Added Rec Rec <br /> 1,1-Dichloreethene 44 44 54 88 88 60-140 0 <br /> Benzene 50 51 50 100 102 60-140 2 <br /> Trichloroethene 43 45 50 86 90 60-140 4 <br /> Toluene 46 44 50 92 88 60-140 4 <br /> Chlorobenzene 46 43 50 92 86 1 60-140 6 <br /> m, -X lenes 102 96 100 102 96 f 60-140 1 6 <br /> • <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Blank Limits 1 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,p-X lenes 0 70-130 <br /> TOTALLY DL-1)ICArEf) IU CUSTOMER SATISFACTION <br />