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CALTECH Environmental Laboratories <br /> 1 6814 Rosecrans Avenue Patanl0Lfn1 CA 90723-3146 <br /> O Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br />' Method 8260E <br />' Matrix Water <br /> Date Analyzed 4127105 <br />' Date Extracted 4127/05 <br />' Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 42 43 50 84 86 70-130 20 2 <br />' Benzene 52 52 50 104 104 70-130 20 0 <br /> Trichloroethene 47 45 50 94 90 70-130 20 4 <br /> Toluene 51 53 50 102 106 70-130 20 4 <br />' Chlorobenzene 55 57 50 110 1 114 70-130 20 4 <br /> m, -X lenes 89 91 100 89 1 91 70-130 20 2 <br /> LCS Laboratory Control Standard <br /> LCSD Laboratory Control Standard Duplicate <br /> RPD Relative Percent Difference of LCS and LCSD <br /> I Perimeters Method Units Det <br /> Blank Limit <br /> 1,1-Dichloroethene ND u /L 1 <br /> Benzene ND u /L 05 <br /> Trichloroethene ND u /L 05 <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 i <br /> TBA ND _ ug/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 ug/L_ 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND u /L 0 6 <br />' Ethanol ND u /L 50 <br /> Methanol ND ug/L_ 1000 <br /> I AT ) TI S f A TION <br /> TOTALLY DED C F✓D ['{ CUSTOMER SA C <br />