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CALTECH Environmental Laboratories <br /> (0) 6811 Roscci aii5 Avcnuw 1',i1,111IMiill ( A 90723- i I46 <br /> Ieleplione (562) 272-2700 1 ?12-?789 <br /> QA/QC Report <br /> Method 8260B <br /> Matrix Water <br /> Date Analyzed 12/22/05 <br /> Date Extracted 12/22/05 <br /> Perimeters Conc ug/L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 43 43 50 86 86 70-130 20 0 <br /> Benzene 52 49 50 104 98 70-130 20 6 <br /> Trichloroethene 50 48 50 100 96 70-130 20 4 <br /> Toluene 49 47 50 98 94 70-130 20 4 <br /> Chlorobenzene 48 48 50 96 96 70-130 20 0 <br /> m,p-?<ytenes 92 89 100 92 89 70-130 1 20 3 <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 u /L 1 <br /> Benzene ND u IL 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 05 <br /> Chlorobenzene ND u /L 0 5 <br /> m, -X lenes ND u /L 0 6 <br /> MTBE NO u IL 1 <br /> TBA ND u L 10 <br /> DIPE ND u IL 1 <br /> ETBE ND u IL 1 <br /> TAME ND u IL 1 <br /> 1,2-Dichloroethane NO u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Ethylbenzene ND u IL 0 5 <br /> o-Xylene ND u IL 0 6 <br /> TCE ND u IL 0 5 <br /> PCE ND u IL 0 5 <br /> 10IAI I Y [)[-Dl( Al I D 1(? C LIS 1 ONIL R SATISFACTION <br />