U.S. Department of Energy Office of Legacy Manage

U.S. Department of Energy Office of Legacy Management Public Notice 2026 Annual Assessment of Institutional Controls: Mound, Ohio, Site in Miamisburg The U.S. Department of Energy (DOE) Office of Legacy Management has completed the 2026 annual assessment of the effectiveness of institutional controls at the Mound, Ohio, Site (former DOE Mound Plant, U.S. Environmental Protect Agency ID: OH6890008984) in Miamisburg. Institutional controls are legally enforceable requirements defined in the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Records of Decision for specific areas within the original DOE Mound Plant property boundary. These controls are non-engineered instruments, such as administrative and legal controls, that help minimize the potential for human exposure to residual contamination, protect the integrity of the environmental remedy, or both. The 2026 Annual Assessment of the Effectiveness of Institutional Controls at the Mound, Ohio, Site, Miamisburg, Ohio (LMS/MND/53131), completed this June, concluded that institutional controls implemented at the Mound site under CERCLA are functioning as intended and are protective of human health and the environment. The report is available at: https://lmpublicsearch.lm.doe.gov/ lmsites/53131_MND_2026_Annual_IC_ FINAL_Redacted.pdf Please direct questions and comments to: Tiffany Drake Mound Site Manager U.S. Department of Energy Office of Legacy Management tiffany.drake@lm.doe.gov or public.affairs@lm.doe.gov 9-9, 9-10, 9-13/2026