U.S. Department of Energy Office of Environmental Management

09/12/2026

What happens when your friend asks you to grab lunch, but you’re busy talking about the future of American energy?

We're excited for the 12th Annual National Cleanup Workshop, where more than 550 U.S. Department of Energy leaders, industry experts, local officials and community stakeholders are coming together to discuss how environmental cleanup can help power and secure America’s future.

09/11/2026

25 years ago, our nation was forever changed by the attacks of September 11.

Today, we remember the thousands of lives lost, the countless lives forever changed, and we honor the first responders, service members, and everyday Americans who answered the call.

We will never forget.

09/11/2026

09/09/2026

Demolition has officially begun on Isotope Row at Oak Ridge National Laboratory, a tight cluster of 10 contaminated buildings that have stood in the heart of ORNL’s central campus since the late 1940s.

After six years of deactivation work by the Oak Ridge Office of Environmental Management and contractor UCOR, the first building came down this fall.

By year’s end, all 10 will be gone, eliminating long-standing radiological hazards, modernizing the central campus and opening valuable land for the next generation of research and innovation. 🏗️⛛️

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.

09/08/2026

Protecting water quality is the top priority at Los Alamos and the Environmental Management Los Alamos Field Office just hit a major milestone to prove it. Crews recently completed drilling a new groundwater monitoring well more than 1,000 feet below the surface, fulfilling a fiscal year 2026 Consent Order milestone for the Hexavalent Chromium Campaign.

The new well will support additional characterization of the plume and help evaluate the best path forward for remediation. 💧🔬

Full story: https://www.energy.gov/em/articles/new-well-further-characterization-hexavalent-chromium-plume-los-alamos

09/07/2026

EM Assistant Secretary Tim Walsh is recognizing the dedicated men and women across the Office of Environmental Management who work every day to fulfill our mission.

Thank you to the countless professionals who support EM’s mission. Your hard work not only makes a difference today but also helps us build a stronger future for generations to come!

Happy Labor Day! 🇺🇸

09/04/2026

We're grateful for the strength, dedication, and passion of every EM employee. Have a great Day weekend!

09/03/2026

Assistant Secretary Tim Walsh recently visited the Fort St. Vrain used nuclear fuel storage facility in northern Colorado — one of only two such facilities owned by DOE and licensed by the U.S. Nuclear Regulatory Commission. Walsh toured recent upgrades to security, infrastructure and worker training equipment, seeing firsthand how the Idaho Cleanup Project workforce brings its best every day to keep communities safe and meet DOE’s cleanup responsibilities.

As Walsh put it: “The members of the workforce managing Fort St. Vrain are no exception, bringing their best to help DOE meet its cleanup responsibilities and ensuring our communities are safe and prosperous.”

09/01/2026

Assistant Secretary Walsh recently visited Oak Ridge National Laboratory as crews began demolition of Isotope Row, home to 10 facilities that once supported isotope production and research.

Years of specialized cleanup have reduced hazards and prepared these facilities for removal, clearing the way for modern research and future missions at Oak Ridge.

This work is an important part of our commitment to reducing environmental risks while supporting the continued success of ORNL's campus.

Hear Assistant Secretary Walsh discuss the significance of this milestone and how EM’s cleanup work is helping prepare Oak Ridge for what comes next: https://www.youtube.com/watch?v=o2UBy79FxW0