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CALTECH Environmental Laboratories <br /> ;_ ; <br /> (18 14 KgSlUin 9��rnuc � )fI10 <br /> QA/QC Report <br /> Method: 82608 <br /> Matrix: Water <br /> Date Analyzed: 2/6/07 <br /> Date Extracted: 2/6/07 <br /> Perimeters Conc. u IL Spike Recovery % Control Limits RPD <br /> MS MSD Added MS MSD Rec. RPD <br /> 1,1-Dichloroethane 50 48 50 100 96 70-130 20 4 <br /> Benzene 47 45 50 94 90 70-130 20 4 <br /> Trichloroethene 52 51 50 104 102 70-130 20 2 <br /> Toluene 48 45 50 96 90 70-130 20 6 <br /> Chlorobenzene 42 40 50 84 80 70-130 20 4 <br /> rn -X vi <br /> 93 86 100 93 86 70-130 20 7 <br /> MS: Matrix Spike <br /> MSD: Matrix Spike Duplicate <br /> RPD: Relative Percent Difference of MS and MSD <br /> Perimeters Method Units Det. <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND u /L 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, -Xylenes ND ug/L 0.6 <br /> MTBE ND ug/L 1 <br /> TBA ND ug/L 10 <br /> DIPE ND u IL 1 <br /> ETBE ND ug/L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 0.5 <br /> EDB ND ug/L 0.5 <br /> Ethylbenzene ND u /L 0.5 <br /> o-X lene ND u /L 0.6 <br /> TCE ND u /L 1 <br /> PCE ND u /L 1 <br /> T+7T,�1 1 �' [)I [)IC'.AI 11) t i I > 1 OA1LR SATISFACTION <br />