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CALTECH Environmental Laboratories <br /> ' 6814 Rosecrans Avenue Paiamount CA 90723-3146 <br /> . Telephone (562) 272-2700 Fax (562) 272-2789 <br /> QA/QC Report <br /> Method 8260B <br /> ' Matrix Water <br /> Date Analyzed 11/24/04 <br /> ' Date Extracted 11/24/04 <br /> ' Perimeters Conc u IL Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 45 44 50 90 88 70-130 20 2 <br /> ' Benzene 48 49 50 96 98 70-130 20 2 <br /> Trichloroethene 43 47 50 86 94 70-130 20 9 <br /> Toluene 46 48 50 1 92 96 70-130 20 4 <br /> Chlorobenzene 47 48 50 1 94 96 70-130 20 2 <br /> m, -X lenes 94 106 100 1 94 106 70-130 20 13 <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 IL 1 <br /> Benzene ND u /L 05 <br /> Trichloroethene ND ug/L. 05 <br /> Toluene ND ug/L. 05 <br /> Chlorobenzene ND u /L 05 <br /> ' m,p-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 ND ug/L. 1 <br /> TAME ND ug/L. 1 <br /> 1,2-Dichloroethane ND u /L 05 <br /> EDB ND u IL 0 5 <br /> Eth (benzene ND u /L 0 5 <br /> o-X lene ND ug/L 0 6 <br /> ' TCE ND u /L 05 <br /> PCE ND ug/L 0 5 <br /> i <br /> TOIALLY DEDICATED TO CUSTOMER SATISFACTION <br />