Safely Reducing Environmental Risks. We are cleaning up contaminated, unused facilities on the Oak Ridge Reservation (ORR). In addition to removing excess facilities, we maintain facilities across ORR that are waiting for disposition. We also provide critical upgrades to extend the life of active, but aging, facilities. This continues the same work done by the former UCOR from 2011 to 2022.
Latest Updates

What's New
A technology that features a remote sensing method using laser pulses to measure distances and create high-resolution 3D models is making a big impact for teams tasked with preparing Manhattan Project and Cold War era facilities for demolition at Oak Ridge. The light detection and ranging technology is reducing the number of entries team members need to make inside contaminated facilities.

What's New
Blankenhorn Named UCOR’s Next President and CEO
Jim Blankenhorn has been selected as the new president and chief executive officer of UCOR, effective April 1, 2026. He replaces Ken Rueter, who is retiring on March 30, 2026, after a long, distinguished career in the nuclear industry. Rueter’s retirement was announced in November. Blankenhorn is currently senior vice president of Amentum’s Energy & Environment North America business line and has more than 38 years of experience leading major projects and programs across the nuclear industry.

What's New
Insight and a questioning attitude from a project manager has led the Oak Ridge Office of Environmental Management (OREM) to accelerate one of the largest demolitions on the horizon at the Y-12 National Security Complex and help avoid millions of dollars in costs to taxpayers. Brian Hutson with OREM contractor United Cleanup Oak Ridge (UCOR) believed the team could find efficiencies in a necessary step to get the Alpha-4 building demolition-ready…

What's New
The Oak Ridge Office of Environmental Management (OREM) made strides moving environmental cleanup and reindustrialization forward across Oak Ridge with the help of contractors United Cleanup Oak Ridge (UCOR) and Isotek in the fiscal year that recently ended. Employees maximized tax dollars by pushing forward wide-ranging projects, including building deactivation, demolition, waste processing and disposal, and reindustrialization.




Safety
Safety is always the top priority at UCOR. We are a DOE Voluntary Protection Program Star site, a designation given to only the safest sites in the DOE Complex. Our award-winning safety performance has earned us many accolades.
Employee involvement is a key aspect of our safety culture. We empower our workers to stop work if they see something questionable. We also have strong worker engagement program to ensure our team members feel safe in their work environment.




