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I <br /> CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue Pala1110UIlt CA 90723-3146 <br /> • O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8260B <br />' Matrix Water <br /> Date Analyzed 3/16/05 <br />' Date Extracted 3/16/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 47 46 50 94 92 70-130 20 2 <br />' Benzene 50 48 50 100 96 70-130 20 4 <br /> Trichloroethene 52 50 50 102 100 70-130 20 2 <br /> Toluene 50 48 50 100 96 70-130 20 4 <br />' Chlorobenzene 54 51 50 108 102 70-130 20 6 <br /> m, -X lenes 104 97 100 1 104 97 70-130 20 7 <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 ug/L. 1 <br />' 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-X lenes ND ug/L. 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND ug/L. 10 <br /> D1PE ND ug/L. 1 <br /> ETBE ND ug/L. 1 <br /> TAME ND ug/L. 1 <br /> 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 0 5 <br /> Eth lbenzene ND ug/L. 051 <br /> o-X leve ND u /L 0 <br /> TOE ND ug/L 1 <br /> . PCE ND u IL 1 <br /> TOTALLY DI1DCA! �U T( <br /> I J CUSTOMER SATISFACTION <br /> � <br />