National Oil and Hazardous; Substances Pollution Contingency Plan; National Priorities List

The Environmental Protection Agency (EPA) Region 5 announces the deletion of the portions of the Department of Energy Mound Superfund Site (Mound Site) known as Release Block D and Release Block H from the National Priorities List (NPL). EPA requests public comment on this action. The NPL constitutes appendix B to the National Oil and Hazardous Substances Pollution Contingency Plan (NCP), 40 CFR part 300, which EPA promulgated pursuant to section 105 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This partial deletion pertains to Release Block D, a 12-acre parcel of property along the eastern border of the Mound Site, containing two industrial buildings. This also pertains to Release Block H, a 14-acre parcel of property consisting of the Mound plant parking lot. The Department of Energy (DOE), with the concurrence of EPA, Region 5, and the Ohio Environmental Protection Agency (OEPA), has issued Records of Decision (RODs) for Release Blocks D and H, selecting institutional controls as the final remedy for both areas. The purpose of institutional controls is to ensure that these properties will be restricted to industrial uses. EPA bases its partial deletion of Release Blocks D and H on the determination by EPA and the State of Ohio, through OEPA, that all appropriate actions under CERCLA have been implemented to protect human health and the environment at Release Blocks D and H. This partial deletion pertains only to Release Blocks D and H. EPA may propose to delete additional portions of the Mound Site in the future. Until then, however, all parts of the Mound Site, other than Release Blocks D and H, will remain on the NPL.