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
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
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
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
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
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.


