Located in Lexington, Kentucky, the PPPO office lies between the Kentucky and Ohio Sites. EM began its cleanup program at the sites in the late 1980s.
Located in Lexington, KY, PPPO manages the DOE Environmental Management (EM) cleanup efforts at two gaseous diffusion plant sites – Portsmouth, Ohio, and Paducah, Kentucky. The Portsmouth/Paducah Project Office (PPPO) manages the Department of Energy (DOE) Office of Environmental Management (EM) cleanup efforts at two gaseous diffusion plant sites – Portsmouth, Ohio, and Paducah, Kentucky. The Dep
artment of Energy’s Portsmouth Gaseous Diffusion Plant in Piketon, Ohio, and its plant near Paducah, Kentucky, were built in the early 1950s to enrich uranium for national defense applications and later for commercial nuclear power plant fuel. The Portsmouth Site ceased enrichment by gaseous diffusion under a commercial lease in 2001, and the Paducah plant ceased production operations under a commercial lease in 2013. PPPO was established on October 1, 2003, to provide focused leadership to the EM missions at the two sites, encompassing decontamination and decommissioning (D&D), environmental remediation, waste management, and depleted uranium hexafluoride (DUF6) conversion. Although the PPPO Manager is based at the Lexington project office, frequent and routine site interactions occur between management and staff among all three locations. PPPO maintains a strong presence at the sites on a daily basis through its Portsmouth and Paducah Site offices. PPPO’s goal is to accelerate cleanup at the two sites, eliminating potential environmental threats, reducing the DOE footprint, and reducing life-cycle cost. The office provides consolidated management and services including:
* Project Management
* Risk Management
* Contract Management
* Business support services, including financial management, information technology, human resources, public affairs, legal, property management, security, safety and quality assurance
The vision of PPPO is to safely accelerate cleanup, ensuring protection of the public and environment, provide jobs for southern Ohio and western Kentucky, and work with the local communities to provide opportunities for economic growth.
06/11/2026
A radiological control worker surveys downed towers near the Paducah C-537 Switchyard in support of site deactivation activities. This work is part of an ongoing effort to disassemble and remove the former transmission towers.
06/10/2026
“Transite removal is the first significant milestone during the demolition phase, so it’s important to set the right tone for this multiyear building demolition." -- Federal Project Director Christy Brown
Portsmouth Crews Remove 15,000 Panels From Facility, Advancing Demolition
Crews taking down the largest former uranium enrichment facility in the heart of the U.S. Department of Energy’s Portsmouth Site recently removed the last of its nearly 15,000 panels containing asbestos, a marker of progress toward the aging structure’s demolition. June 9, 2026
06/09/2026
ICYMI: Deactivation Superintendent John Barnett leads training for the next generation workforce, supporting upcoming deactivation activities in the C-337 Process Building at the Paducah Site. Click below to learn more.
Operators load and move debris at the 5-Unit area for transport to the Portsmouth On-Site Waste Disposal Facility.
06/05/2026
Four Rivers Nuclear Partnership, the deactivation and remediation contractor at the Paducah Site, and Southern Ohio Cleanup Company, the deactivation and demolition contractor at the Portsmouth Site, recently welcomed summer interns. Best of luck to all PPPO interns while they work on projects and learn more about career opportunities at the sites!
06/04/2026
As members of the next-generation workforce arrive at the Paducah Site, they will undergo a new training by longtime employees covering a topic that may be unfamiliar to the incoming workers: the site’s past uranium enrichment operations.
Paducah Bridges Generational Knowledge for Legacy Building Deactivation
As members of the next-generation workforce arrive at the Paducah Site, they will undergo a new training by longtime employees covering a topic that may be unfamiliar to the incoming workers: the site’s past uranium enrichment operations. June 2, 2026
06/03/2026
ICYMI: Students in both Ohio and Kentucky benefited from a collaboration of Murray State University and Ohio University's Voinovich School of Leadership and Public Service for the Student Annual Site Environmental Report summary project. Click the link below to learn more.
On This Day: The AEC begins construction of the Paducah Gaseous Diffusion Plant in 1950. To see photos from early construction, check out the photo gallery on Paducah's virtual museum.
Crews remove former UF6, steam and air lines, air gapped between the C-360 Toll Transfer and Sampling Building and the C-337-A Feed Vaporization Facility, furthering the removal of unused structures and facilities at the Paducah Site.
05/28/2026
Excavators operate in unison during demolition of the southwest corner of the Portsmouth X-333 Process Building, while water misting systems are used to control the dust during demolition.