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CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paramount CA 90723-3146 <br /> Telephone (562) 277-2700 fax (562) 272-2789 <br /> QA/QC Report <br />' Method 82606 <br />' Matrix Water <br /> Date Analyzed 3/9/05 <br /> Date Extracted 3/9/05 <br />' Perimeters Conc /L Spike Recover % Control Limits RPD <br /> LCS UCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 42 43 50 84 86 70-130 20 2 <br />' Benzene 44 46 50 88 92 70-130 20 4 <br /> Trichloroethene 45 47 50 90 94 70-130 20 4 <br /> Toluene 41 43 50 82 86 70-130 20 4 <br />' Chlorobenzene 43 47 50 86 94 70-130 20 8 <br /> m, -X lenes 88 94 100 88 94 70-130 20 6 <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 a /L 0 5 <br />' m, -X lenes ND ug/L 0 6 <br /> MTBE ND u /L 1 <br /> TBA ND u /L 10 <br /> DIPE ND ug/L_ 1 <br /> ETBE N D u IL 1 <br /> TAME N D u IL 1 <br /> 1,2-Dichloroethane ND u /L 0 5 <br /> EDB ND u /L 05 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lone N D ug/L. 0 6 <br /> TCE ND ug/L. 1 <br /> PCE ND u /L 1 <br /> I <br /> TO I,ALLY DEDICXI ED TO CU 1-OMIE-R SATISFACTION <br />