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Page 2 <br /> August 11 , 1994 LAB No: STK 433893-1 <br /> Little Potato Slough Description: River Water <br /> EPA METHOD 8240 Analysis results Cont'd <br /> SAMPLE SAMPLE LAB BLANK <br /> CONSTITUENT DLR RESULTS DLR RESULTS <br /> ug/L ug/L ug/L ug/L <br /> Ethyl Benzene 0.5 NO 0.5 ND <br /> 2-Hexanone 5 NO 5 NO <br /> Methylene Chloride 0.5 NO 0.5 ND <br /> 2-Butanone (MEK) 10 ND 10 NO <br /> 4-Methyl-2-pentanone (MIBK) 5 ND 5 NO <br /> Styrene 1 ND 1 NO <br /> 1 , 1 ,2,2-Tetrachloroethane 1 ND 1 NO <br /> Tetrachloroethylene 0.5 ND 0.5 NO <br /> Toluene 0.5 ND 0.5 NO <br /> 1 , 1 , 1-Trichloroethane 0.5 NO 0.5 NO <br /> 1 , 1 ,2-Trichloroethane 0.5 NO 0.5 NO <br /> Trichlorethylene I NO 1 NO <br /> Trichlorofluoromethane 1 .5 NO 1 .5 ND <br /> Vinyl Acetate 100 ND 100 ND <br /> Vinyl Chloride 0.5 NO 0. 5 ND <br /> Xylenes I ND 1 ND <br /> Acrolein 100 ND 100 ND <br /> Acrylonitrile 100 NO 100 ND <br /> 2-Chloroethylvinyl ether 10 ND 10 NO <br /> Dichlorodifluoromethane <br /> SAMPLE LAB BLANK <br /> SURROGATES AR % REC. AR % ,REC. <br /> Dibromofluoromethane 61-164 93 61-164 97 <br /> Toluene-d8 82-117 93 81-117 97 <br /> BFB 67-124 101 67-124 99 <br /> DLR = Detection Limit for Reporting Purposes. MCL = Maximum Contaminant Level (--- indicates none determined.) <br /> ug/L = Micrograms Per Liter (ppb) NO = Not Detected at or above the DLR. AR = Acceptable Range <br /> • = DLR adjusted because of dilutions, concentrations, or limited sample. <br /> See attached report for QA/QC data. If you have any questions, please call . <br /> FGL ENVIRONMENTAL <br /> Tom M. Bartanen, M.S. <br /> Laboratory Director <br /> TMB:jgc <br />