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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paiamount CA 90723-3146 3elephone (562) 272-2700 I~a,� (562) 272-2780 <br />' <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 912105 <br />' Date Extracted 912105 <br /> Perimeters Conc uglL Spike Recovery % Control Limits RPD <br /> 1 LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 44 46 50 88 92 70-130 20 4 <br />' Benzene 48 50 50 96 100 70-130 20 4 <br /> Trichloroethene 50 51 50 100 102 70-130 20 2 <br /> Toluene 46 48 50 92 96 70-130 20 4 <br />' Chlorobenzene 46 49 50 92 98 70-130 20 6 <br /> m,p-Xylenes 96 1 103 100 96 103 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 /> 1 Benzene NO u IL 0 5 <br /> Trichloroethene ND u IL 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND ug/L 0 5 <br />' m,p-Xylenes ND ug/L 06 <br /> MTBE ND u IL 1 <br /> TBA ND ug/L 10 <br /> DIPE NO ug/L 1 <br /> ETBE ND u IL 1 <br /> TAME ND ug/L 1 <br /> 1,2-Dichloroethane ND ug/L 0 5 <br /> EDB ND ug/L 0 5 <br /> Ethylbenzene ND u IL 0 5 <br /> o-Xylene ND ug/L 0 6 <br />' TOIALLY DEDICAI [-I) F0 C USTOMER SATISFACI ION <br />