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CkL TECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 272-2700 Far (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 7129105 <br /> Date Extracted 7129105 <br /> Perimeters Cone ug/L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 40 42 50 80 1 84 70-130 20 4 <br /> Benzene 44 47 50 88 94 70-130 20 6 <br /> Trichloroethene 46 48 50 92 86 70-130 20 6 <br /> Toluene 1 47 49 50 94 98 70-130 20 4 <br /> Chlorobenzene 1 47 49 50 94 98 70-130 1 20 4 <br /> m,p-X lenes 1 91 1 98 100 91 98 70-130 20 7 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND ug/L 1 <br /> Benzene ND ug/L 0 5 <br /> Trichloroethene ND ug/L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND u IL 0 5 <br /> m,p-X lenes ND ug/L 06 <br /> MTBE ND ug/L 1 <br /> TBA ND ug/L 10 <br /> DIPE ND ug/L 1 <br /> ETBE ND ug/L 1 <br /> TAME ND u IL 1 <br /> 1,2-Dichloroethane ND ug/L 0 5 <br /> EDB ND ug/L 0 5 <br /> Ethylbenzene ND ug/L 0 5 <br /> 2-Xylene ND ug/L 0 6 <br /> TCE ND ug/L 1 <br /> PCE ND ug/L 1 1 <br /> TOTALLY DI-DIC ArED TO C US rOMER SATISFACTION <br />