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0 0 <br /> WEST COAST ANALYTICAL SERVICE, INC. <br /> Dudek&Associates Job No: 86246 <br /> Attn: Glenna McMahon April 26,2006 <br /> Volatile Organics by EPA 624/8260B <br /> Sample:KS-7/KI-7 Purge Water <br /> Parts per Billion(µg/L) <br /> Detection Blank Detection <br /> Compound Result Limit Result Limit <br /> Bromodichloromethane ND 0.3 ND 0.3 <br /> Bromoform ND 0.5 ND 0.5 <br /> Bromomethane ND 0.5 ND 0.5 <br /> Carbon Tetrachloride ND 0.2 ND 0.2 <br /> Chlorobenzene ND 0.1 ND 0.1 <br /> Chloroethane ND 0.2 ND 0.2 <br /> Chloroform ND 0.5 ND 0.5 <br /> Chloromethane ND 0.2 ND 0.2 <br /> Dibromochloromethane ND 0.4 ND 0.4 <br /> 1,2-Dichlorobenzene ND 0.2 ND 0.2 <br /> 1,3-Dichlorobenzene ND 0.2 ND 0.2 <br /> 1,4-Dichlorobenzene ND 0.2 ND 0.2 <br /> Dichlorodifluoromethane ND 0.4 ND 0.4 <br /> 1,1-Dichloroethane ND 0.5 ND 0.5 <br /> 1,2-Dichloroethane ND 0.4 ND 0.4 <br /> 1,1-Dichloroethylene ND 0.5 ND 0.5 <br /> cis-1,2-Dichloroethylene ND 0.5 ND 0.5 <br /> trans-1,2-Dichloroethylene ND 0.5 ND 0.5 <br /> 1,2-Dichloropropane ND 0.3 ND 0.3 <br /> cis-1,3-Dichloropropene ND 0.3 ND 0.3 <br /> trans-1,3-Dichloropropene ND 0.4 ND 0.4 <br /> Methylene Chloride ND 4 ND 4 <br /> 1,1,2,2-Tetrachloroethane ND 0.4 ND 0.4 <br /> Tetrachloroethylene ND 0.5 ND 0.5 <br /> 1,1,1-Trichloroethane ND 0.5 ND 0.5 <br /> 1,1,2-Trichloroethane ND 0.5 ND 0.5 <br /> Trichloroethylene 5.2 0.5 ND 0.5 <br /> Trichlorofluoromethane ND 0.3 ND 0.3 <br /> Vinyl Chloride ND 0.2 ND 0.2 <br /> Date extracted: 04-21-06 <br /> Date analyzed: 04-21-06 <br /> Sample Blank <br /> Surrogate OC Limits Percent Recovery Percent Recovery <br /> Dibromofluoromethane 75-125 13* 96 <br /> 1,2-Dichloroethane-d4 82-121 98 99 <br /> Bromofluorobenzene 76-113 98 98 <br /> * Outside control limits. Sample matrix effect. Sample pH was 14. <br /> This report is to be reproduced in its entirety. <br /> Page 2 of 3 <br /> aM <br />