Portsmouth/Paducah Project Office - PPPO

Portsmouth/Paducah Project Office - PPPO 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.

Four Rivers Nuclear Partnership, the deactivation and remediation contractor at the Paducah Site, and Southern Ohio Clea...
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!

As members of the next-generation workforce arrive at the Paducah Site, they will undergo a new training by longtime emp...
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.

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

On This Day: The AEC begins construction of the Paducah Gaseous Diffusion Plant in 1950. To see photos from early constr...
06/01/2026

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.

VIDEO: Diffusion filmstripHistorical excerpt from DOE video illustrating the separation of uranium isotopes in a gaseous diffusion barrier.

Crews remove former UF6, steam and air lines, air gapped between the C-360 Toll Transfer and Sampling Building and the C...
05/29/2026

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.

Excavators operate in unison during demolition of the southwest corner of the Portsmouth X-333 Process Building, while w...
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.

“The Student ASER is an opportunity to involve local students in science-based activities and interact with local univer...
05/27/2026

“The Student ASER is an opportunity to involve local students in science-based activities and interact with local universities. It is just one of several PPPO educational outreach programs to boost STEM education and prepare a pipeline of talent to fill the jobs of tomorrow.” - Acting PPPO Manager Erik Olds

Click below to learn more.

Murray State University
Ohio University's Voinovich School of Leadership and Public Service

Two universities in Ohio and Kentucky are collaborating to build STEM interest in local high school students and inspire them to pursue careers at the U.S. Department of Energy’s Portsmouth and Paducah sites. May 26, 2026

Murray State University (MSU) engineering students discuss groundwater treatment options with a system engineer. A proje...
05/22/2026

Murray State University (MSU) engineering students discuss groundwater treatment options with a system engineer. A project to evaluate treatment options is part of a larger grant to MSU, supporting ongoing cleanup of the Paducah Site.

Murray State University

Transite removal technicians remove the final piece of transite from the Portsmouth X-333 Process Building. More than 17...
05/21/2026

Transite removal technicians remove the final piece of transite from the Portsmouth X-333 Process Building. More than 17,000 transite panels have been removed and bundled. The bundles are stacked, wrapped and transferred to the On-Site Waste Disposal Facility for final disposition.

Address

1017 Majestic Drive
Lexington, KY
40513

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