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1 CALTECH Environmental Laboratories <br /> O6814 Rosecrans Avenue Paran1011nl 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 114/05 <br /> ' Date Extracted 1/4/05 <br /> Perimeters Conc u /L Spike Recover % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 48 46 50 96 92 70-130 1 20 4 <br /> ' Benzene 50 47 50 100 94 70-130 20 6 <br /> Trichloroethene 50 47 50 100 94 70-130 20 6 <br /> Toluene 51 48 50 102 96 70-130 20 6 <br /> Chlorobenzene 48 48 50 96 96 70-130 20 0 <br /> m, -X lenes 95 90 100 95 90 70-130 20 5 <br /> ' LCS Laboratory Control Standard <br /> LCSD Laborat,,ry Control Standard Duplicate <br /> ' RPD Relative 'ercent 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 IL 0 5 <br /> Trichloroethene ND ug/L 05 <br /> Toluene ND ug/L 05 <br /> Chlorobenzene ND u /L 05 <br /> m,p-X lenes ND u /L 06 <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 05 <br /> EDB ND u /L 05 <br /> Eth /benzene ND u /L 05 <br /> ' o-Xylene ND u /L 0 6 <br /> TDE ND ug/L 1 <br /> PCE ND u /L i <br /> TOTALLY DEDICATED 10 CUSTOMLR SATISFACTION <br />