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AL ECH E:nvlronmental Laboratories <br /> 681 t Kosccr,im, N,enLIL Pawniowfl (, ,A 00 7'3 31 10 <br /> 10chhoktie (ti62) 272-2700 1 dv (7h2) 272-2789 <br /> QA/QC Report <br /> Method 82608 <br /> ' Matrix Water <br /> Date Analyzed 10/20/05 <br /> ' Date Extracted 10/20/05 <br /> ' Perimeters Conc u IL Spike Recovery_ % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec RPD <br /> 1,1-Dichloroethene 46 51 50 92 102 70-130 20 10 <br /> ' Benzene 51 57 50 102 114 70-130 20 12 <br /> Trichloroethene 51 56 50 102 112 70-130 20 10 <br /> Toluene 44 44 50 88 88 70-130 20 0 <br /> Chlorobenzene 43 45 50 86 90 70-130 20 4 <br /> 1m,p-Xylenes 109 114 100 1 109 114 70-130 20 5 <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 IL 0 5 <br /> Trichloroethene ND u IL 0 5 <br /> Toluene ND u IL 0 5 <br /> Chlorobenzene ND u L 0 5 <br /> ' m, -X lenes ND u IL 0 6 <br /> MTBE ND u IL 1 <br /> TBA ND u IL 10 <br /> ' D1PE ND u IL 1 <br /> ETRE ND u IL 1 <br /> TAME ND u L 1 <br /> 1,2-Dichloroethane ND u IL 0 5 <br /> EDB ND u IL 0 5 <br /> Ethylbenzene ND u L 0 5 <br /> o-X lene ND u IL 0 6 <br /> t TCE ND u /L 0 5 <br /> PCE ND u IL 0 5 <br /> 1 <br /> I , <br /> lOE �l I1 <br /> It) lOtl5]ON111. 5AC'1YAt IfOfti{ <br />