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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue P81 aIIIOUnI CA 90723-3146 <br /> Telephone (562) 272-2700 Fa\ (562) 272-2789 <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 7113105 <br />' Date Extracted 7113105 <br />' Perimeters Conc ug/L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 46 50 96 92 70-130 20 4 <br />' Benzene 47 45 50 94 90 70-130 20 4 <br /> Trichloroethene 52 48 50 104 96 70-130 20 8 <br /> Toluene 51 50 50 102 100 70-130 20 2 <br />' Chlorobenzene 49 47 50 98 94 70-130 1 20 4 <br /> m,p-Xylenes 106 102 100 106 102 70-130 20 4 <br /> 0 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 /> I Benzene ND ug/L 0 5 <br /> Trichloroethene ND ug/L 0 5 <br /> Toluene ND ug/L 0 5 <br /> Chlorobenzene ND ug/L 0 5 <br /> m,p-Xylenes ND ug/L 0 6 <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 ug/L 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 /> o-Xylene ND ug/L 0 6 <br /> TCE ND ug/L 0 5 <br /> PCE ND u IL 0 5 <br /> I <br /> I <br /> TOTA[ I.Y DEUICAFED FO C U' ] OMER SATISFACTION <br />