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CALTECH Environmental Laboratories <br /> O6814 Rosecians Avenue Paralilollnt CA 90723-3146 Telephone (562) 272-2700 Fax (562) 272-2789 <br />' QA/QC Report <br />' Method 8260B <br /> Matrrx Water <br /> Date Analyzed 4/14/05 <br />' Date Extracted 4/14/05 <br />' Perimeters Conc u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 41 42 50 82 84 70-130 20 2 <br />' Benzene 44 47 50 88 94 70-130 20 6 <br /> Trichloroethene 45 46 50 90 92 70-130 20 2 <br /> Toluene 45 48 50 90 96 70-130 20 6 <br /> Chlorobenzene 46 46 50 92 92 70-130 20 0 <br /> m, -X lenes 86 89 100 86 89 70-130 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 /L 0 5 <br /> Trichloroethene ND u /L 0 5 <br /> Toluene ND u /L 0 5 <br /> Chlorobenzene ND u /L 0 5 <br /> m,p-X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> I DIPE ND u /L 1 <br /> ETBE ND u /L 1 <br /> TAME ND u /L 1 <br /> 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth lbenzene ND ug/L. 0 5 <br /> o-X Iene ND u /L 0 6 <br /> Ethanol ND u /L 50 <br /> Methanol ND u /L 1000 <br /> I <br /> TOTALLY DEDICATED TO CUSTOMER SATISFACTION <br />