Southern Ohio Cleanup Company LLC

Southern Ohio Cleanup Company LLC is a limited liability partnership registered as a for-profit organization with the federal government since May 2022. The company specializes in decontamination and decommissioning services for nuclear facilities, specifically focusing on the remediation of former uranium enrichment sites and other Department of Energy environmental legacy properties. As a prime contractor to the U.S. Department of Energy's Office of Environmental Management, Southern Ohio Cleanup Company LLC undertakes complex nuclear cleanup projects that address decades of nuclear weapons production and energy research impacts.

Southern Ohio Cleanup Company LLC has received federal contract awards exclusively from the Department of Energy's Office of Environmental Management for the Portsmouth Decontamination and Decommissioning project located in Piketon, Ohio. The company was awarded a delivery order on July 13, 2023, valued at $4,976,381 (with a ceiling of $7,723,420) for contract transition activities, which involved updating contract deliverables and preparing for full project execution. This was followed by a significantly larger delivery order awarded on September 19, 2025, with a ceiling value of approximately $2.54 billion spanning fiscal years 2026 through 2031 for incremental funding across multiple contract line items. Both delivery orders are structured as cost-type contracts, with the initial task order carrying no fee component. The work encompasses decontamination and decommissioning of inactive process buildings, support structures, and equipment at the former uranium enrichment facility, including radioactive and hazardous material cleanup, facility demolition, and comprehensive site remediation. Neither award utilizes set-aside designations, and Southern Ohio Cleanup Company LLC serves as the prime contractor with no subcontractor partnerships indicated in the award documentation.

Southern Ohio Cleanup Company LLC holds a single-award Indefinite Delivery Contract from the Department of Energy's Office of Environmental Management with a ceiling value of $5.87 billion and an ultimate completion date of June 1, 2035. This 12-year IDC was competitively procured through a process initiated in November 2021 with proposals due in March 2022, and it was officially awarded on July 13, 2023. The contract covers the comprehensive dismantlement, decontamination, and disposal activities at the Portsmouth site in Piketon, Ohio, serving as the overarching vehicle under which task orders are issued for specific phases and components of the D&D project. Task orders issued under this IDC have included the contract transition delivery order and the substantial $2.54 billion Task Order 3 for fiscal years 2026 through 2031, which represents ongoing incremental funding for multiple contract line items addressing the full scope of Portsmouth site remediation. The IDC does not fall under any parent federal contract vehicles and operates as a standalone single-award contract, with all funding and task order issuances originating from the Department of Energy's Office of Environmental Management.