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
from UCOR’s Social Media
We are proud to continue this important partnership that is helping create a pipeline of nuclear workers for East Tennessee. #CleanupTodayForANuclearTomorrow
Amentum-led UCOR President & CEO Ken Rueter’s Sunday interview with WBIR Channel 10 Knoxville’s Inside Tennessee with John Becker and panelists is online. Follow the link below to see how our Cleanup Today for a Nuclear Tomorrow™ initiative success for the Department of Energy - Oak Ridge Office of Environmental Management is bringing more than $12 billion in next-gen nuclear investments and an expected 4,000 new jobs to the Oak Ridge Corridor.
www.wbir.com/video/news/politics/inside-tennessee/inside-tennessee-ken-rueter/51-12d22458-4750-45...
Meet Isaiah Lyons, a journeyman laborer who works on the Beta-1 crew at Y-12. Isaiah recently married his high school sweetheart! Check out this spotlight on our YouTube channel to learn more about Isaiah: youtu.be/28kGjJho7Vg #TeamUCOR
A small but mighty ORNL Nuclear Operations crew responded to the cold and snow over the last two weekends. They cleared snow, de-iced surfaces, installed warning signs and barriers, and walked down their areas of responsibility to ensure they were ready for normal operations. Thanks to the ORNL Nuclear Operations team for its dedication to UCOR’s #SafetyCulture. #CleanupTodayForANuclearTomorrow #EmergencyResponse #OperationalExcellence
What's New
Oak Ridge Outreach Keeps Community Informed About Cleanup Progress
The Oak Ridge Office of Environmental Management (OREM) held an open-house public information session on Jan. 29 to keep the community updated on the priorities and latest cleanup happening across the U.S. Department of Energy (DOE) Oak Ridge Reservation. The session at the Oak Ridge Conference Center included poster stations that highlighted recent achievements, projects on the horizon and goals for 2026. Federal and contractor project managers were also on hand to speak with participants.
What's New
EM Completes Largest Ever Demolition at Y-12
The final wall of a 325,000-square-foot former uranium enrichment facility fell last week, marking the completion of the Oak Ridge Office of Environmental Management’s (OREM) largest demolition project yet at Y-12 National Security Complex. Demolition of the Alpha-2 building by OREM and cleanup contractor United Cleanup Oak Ridge (UCOR) cleared away a Manhattan Project-era facility, helping modernize the site to support important national security missions.
What's New
EM Projects in 2026 Continue Oak Ridge’s Transformation
Building on the groundwork laid in 2025, the Oak Ridge Office of Environmental Management (OREM) and its contractors are set to achieve significant progress in 2026. Their projects are removing risks, supporting the U.S. Department of Energy’s modernization efforts to advance important national missions and providing land for Oak Ridge to serve as a hub for nuclear energy technology and innovation.
What's New
Oak Ridge Crews Remove 64 Million Pounds of Waste in 2025
Crews removed 64 million pounds of waste from Oak Ridge’s cleanup sites in 2025, a tally showcasing the pace and progress of projects clearing away old infrastructure and preparing numerous buildings for demolition. “This remarkable number puts the scale of our work in perspective,” Oak Ridge Office of Environmental Management (OREM) Deputy Manager Teresa Robbins said. “It also highlights how much of our progress is often unseen but is equally important to mission success.
What's New
Imaging Technology Delivers Data, Saves Time, Enhances Safety in Oak Ridge
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.
Safety
We Strive to Set the Standard in 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.
