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CALTECH Environmental Laboratories <br />' 6814 Rosecrans Avenue Pa[aMOLtnl CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br />' <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 4113105 <br /> rDate Extracted 4113/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Ree RPD <br /> 1,1-Dichloroethene 46 50 50 92 100 70-130 20 8 <br />' Benzene 51 51 50 102 102 70-130 20 0 <br /> Trichloroethene 50 51 50 100 102 70-130 20 2 <br /> Toluene 1 49 49 50 98 98 70-130 20 0 <br />' Chlorobenzene 48 54 50 96 108 70-130 1 20 12 <br /> m, -X lenes 103 107 100 103 1 107 70-130 1 20 4 <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, -X lenes ND u /L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> 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 (benzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br /> Ethanol ND ug/L. 50 <br /> Methanol ND u /L 1000 <br /> I <br /> TOTALLY DEDICAfE.D TO CUSTOMER SATISFACTION <br />