Record Display for the EPA National Library Catalog
RECORD NUMBER: 139 OF 217
|OLS Field Name||OLS Field Data|
|Main Title||Superfund record of decision : Des Moines TCE.|
|CORP Author||United States. Environmental Protection Agency.|
|Publisher||U.S. Environmental Protection Agency, Office of Emergency and Remedial Response,|
|Subjects||Hazardous waste sites--Iowa.|
|Additional Subjects||Contaminants ; Waste disposal ; Ground water ; Water supply ; Hazardous materials ; Tetrachloroethylene ; Vinyl chloride ; Soil water ; Iowa ; Ecology ; Public health ; Environmental tests ; Pollution ; Superfund ; Ethylene/trichloro ; Environmental monitoring ; Des Moines(Iowa)|
|Collation||55 pages ; 28 cm|
The Des Moines TCE site includes the underground infiltration gallery used by the Des Moines Water Works (DMWW) as a source of the public water supply. The site was discovered in 1984 after trichloroethylene (TCE) was detected in the city's public water supply. The Dico Company disposed of an unknown quantity of oily waste sludge containing TCE onto their parking lot for dust control and into a drainage ditch on their property. The primary contaminants of concern include: TCE, PCE, 1,2-dichloroethane, vinyl chloride. The selected remedial action for this site includes: extraction wells to collect the contaminated ground water; isolation of the northern-most section of the north gallery; treatment of the ground water through air stripping to remove 96 percent of the TCE; discharge of the treated water to the Raccoon River; operation of the west extraction wells until established effluent levels are achieved for four consecutive months.
"07/21/86." "PB87-189940." "EPA/ROD/R07-86/005." "Office of Emergency and Remedial Response." Microfiche.