Mission
Our mission is to complete the safe cleanup of environmental legacies on the Oak Ridge Reservation resulting from decades of nuclear weapons development and government-sponsored nuclear energy research. Our projects are protecting the region's health and environment by removing risks, enabling modernization at national security and science sites, and transferring cleaned land to the community to boost new economic growth.
News
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A partnership between the U.S. Department of Energy’s Oak Ridge Office of Environmental Management and the National Nuclear Security Administration is advancing preparations for future demolition of a legacy facility while recovering valuable equipment for national security missions.September 29, 2026
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Members of the community recently broke ground for a first-of-a-kind community enrichment center in the Scarboro community made possible by a $2.4 million Community Capacity Building Grant from the U.S. Department of Energy Office of Environmental Management.September 29, 2026
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U.S. Department of Energy Office of Environmental Management Senior Advisor Jim Kahler joined private sector partners on a National Cleanup Workshop panel to share insight on the thriving new energy developments taking root across EM sites.September 22, 2026
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Leaders from the nation’s gaseous diffusion plant complex participated in the “Enriching Communities – A Renewed Purpose for America’s GDP Complex” panel at the National Cleanup Workshop.September 22, 2026
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In a first, the Oak Ridge Office of Environmental Management and cleanup contractor United Cleanup Oak Ridge have conducted demolition on two facilities at the Y-12 National Security Complex in a single fiscal year.September 15, 2026
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The Oak Ridge Office of Environmental Management finished a 2.5-year piping replacement project that is crucial to maintain ongoing missions and daily operations at Oak Ridge National Laboratory.September 8, 2026
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An Oak Ridge Office of Environmental Management team has begun demolishing a tight cluster of highly contaminated buildings on one of the most challenging footprints at Oak Ridge National Laboratory.September 1, 2026
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The U.S. Department of Energy’s Oak Ridge Office of Environmental Management and contractor Isotek Systems finished installing a new analytical laboratory supporting the highest-priority cleanup project at Oak Ridge National Laboratory and speeding the delivery of crucial material for cancer treatment research. August 25, 2026August 25, 2026
Areas of Focus
Oak Ridge National Laboratory and the Y-12 National Security Complex are home to more than 300 excess, contaminated facilities, including DOE's largest inventory of high-risk structures. OREM is responsible for stabilizing and preparing these facilities for demolition. This complex and challenging process is eliminating hazards and laying the groundwork for major transformation at those sites.
OREM is tasked with tearing down hundreds of facilities at Oak Ridge National Laboratory and the Y-12 National Security Complex over the next two decades. Those projects are removing contaminated reactor facilities, labs, and enrichment facilities and opening space DOE and NNSA can reuse to advance research and national security missions.

Once old, contaminated buildings are cleared away, the final phase of cleanup involves addressing the soil and groundwater beneath them. OREM performs this work to enhance safety, minimize impacts to the environment, and enable land to be reused in the future.

Cleanup on the Oak Ridge Reservation generates considerable amounts of waste in many different forms. Highly radioactive and hazardous waste is shipped out of state for permanent disposal, while low-level waste, such as building debris and soil, is disposed of in an engineered facility located on site.

OREM is part of a tri-party agreement with the U.S. Environmental Protection Agency and Tennessee Department of Environment and Conservation that establishes guidelines and milestones for cleanup. The collaboration between these organizations has positioned Oak Ridge as the national pacesetter for cleanup within the federal government.
Upcoming Events
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Oct 7ORSSAB Executive Committee Meeting - October 7, 2026 (Virtual)Starts 04:00pm EST View Event Details for ORSSAB Executive Committee Meeting - October 7, 2026 (Virtual)
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Oct 14ORSSAB Meeting - October 14, 2026 (In-Person/Virtual Hybrid)Starts 06:00pm EST View Event Details for ORSSAB Meeting - October 14, 2026 (In-Person/Virtual Hybrid)
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Oct 28ORSSAB EM & Stewardship Committee Meeting - October 28, 2026 (Virtual/In-Person Hybrid)Starts 06:00pm EST View Event Details for ORSSAB EM & Stewardship Committee Meeting - October 28, 2026 (Virtual/In-Person Hybrid)
Contact Us
Oak Ridge Office of Environmental Management
Joe L. Evins Federal Building
200 Administration Road
Oak Ridge, TN 37830