DOE Environmental Management
@EMcleanup

The U.S. Department of Energy Office of Environmental Management is cleaning up nuclear weapons production and government-sponsored research sites nationwide.

 Washington, DC
energy.gov/em
Joined September 2019
1,752 Photos and videos
Yesterday, A/S Walsh was in Denver, Colorado celebrating the @ENERGY SPARK investments! This initiative will lower electricity costs for American families and businesses and strengthen our nation’s electric grid.
Graphic with photo of Office of Environmental Management Assistant Secretary Tim Walsh standing outdoors at a podium with a microphone with text that reads as follows: An Investment in AMERICA'S ELECTRIC GRID. "President Trump's Department of Energy is making significant investments in energy infrastructure to power America's future and lower costs for hardworking families. Affordable, reliable energy is the fundamental building block of a thriving economy and vibrant communities. We are securing America's energy future!" - TIMOTHY J. WALSH / ASSISTANT SECRETARY FOR THE OFFICE OF ENVIRONMENTAL MANAGEMENT

ALT Graphic with photo of Office of Environmental Management Assistant Secretary Tim Walsh standing outdoors at a podium with a microphone with text that reads as follows: An Investment in AMERICA'S ELECTRIC GRID. "President Trump's Department of Energy is making significant investments in energy infrastructure to power America's future and lower costs for hardworking families. Affordable, reliable energy is the fundamental building block of a thriving economy and vibrant communities. We are securing America's energy future!" - TIMOTHY J. WALSH / ASSISTANT SECRETARY FOR THE OFFICE OF ENVIRONMENTAL MANAGEMENT

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From beneficial reuse to national security and community engagement, the energy and collaboration at the 2026 National Cleanup Workshop was electric! Watch the full wrap-up video to catch more highlights and hear from the voices leading the charge: bit.ly/4ygiYGD

Energycast: Stakeholders Share Insight on Nuclear Renaissance at National Cleanup Workshop

ARLINGTON, VA. — This year’s National Cleanup Workshop explored how...

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⚡@ENERGY announces investments for 31 projects to modernize America’s electric grid—lowering energy costs for American households and businesses, supporting high-impact transmission upgrades that increase grid capacity, and strengthening reliability! energy.gov/articles/energy-d…
The image is a promotional graphic from the U.S. Department of Energy, Office of Electricity. It features an electricity transmission tower with a sunset backdrop. The text reads: "Unleashing American Energy with SPARK Investments. Lowering energy costs for American households and businesses, expanding grid capacity through high-impact transmission upgrades, and strengthening grid reliability."

ALT The image is a promotional graphic from the U.S. Department of Energy, Office of Electricity. It features an electricity transmission tower with a sunset backdrop. The text reads: "Unleashing American Energy with SPARK Investments. Lowering energy costs for American households and businesses, expanding grid capacity through high-impact transmission upgrades, and strengthening grid reliability."

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DOE Environmental Management retweeted
U.S. Department of Energy
@ENERGY
Sep 24
The Energy Department is investing in America’s electric grid — lowering energy costs for American households and businesses, increasing grid capacity, and strengthening reliability!
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Assistant Secretary Tim Walsh recently returned from an exciting and informative trip to Japan for the 10th International Forum on the Decommissioning of the Fukushima Daiichi Nuclear Power Station. Hear more about his recent trip ⬇️
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🗓️ EM Virtual Industry Day — Sept. 30. Learn how your organization can help repurpose surplus critical minerals & materials from EM sites for American manufacturing, energy and defense. ➡️ Join us Sept. 30: bit.ly/4h8XRQr ➡️ EOI announcement: bit.ly/3TfZF0Y
Event flyer. Details can be found here: https://bit.ly/3TfZF0Y.

ALT Event flyer. Details can be found here: https://bit.ly/3TfZF0Y.

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Historic double demolition!🏗️ For the first time in a single fiscal year, @OakRidgeOffice crews have conducted demolition on two @y12nsc facilities. EM is clearing away the past to make room for the future of national security modernization. #demomomentum bit.ly/4cZQYys

Momentum Builds as Crews Take on 2 Demolitions in 1 Year at Y-12 — a First

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...

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.@EMcleanup is releasing an Expression of Interest seeking industry input on surplus critical minerals and materials at five cleanup sites — potential assets for American manufacturing, energy and defense. This is cleanup working smarter. 🔗energy.gov/em/articles/doe-s…

DOE Seeks Industry Input on Surplus Critical Minerals and Materials at Cleanup Sites

The U.S. Department of Energy's Office of Environmental Management released an expression of interest seeking input from American industry on the potential transfer of surplus critical minerals, rare...

energy.gov
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In the News: Banner Shipments, Record Construction & Innovative Forestry ⚡️ Major cleanup momentum across the complex ✔️ Los Alamos is hitting WIPP shipment records & Savannah River is building its final mega-disposal unit! Subscribe to the EM Update at bit.ly/3TfRH7P!
Blue, gold and white Graphic with text on left reading "EM Update, News on the World's Largest Environmental Cleanup, Vol. 17, Issue 36." Photo on right side of graphic shows EM-Los Alamos crews loading U.S. Nuclear Regulatory Commission-approved transportation casks used to safely transport TRU waste to the Waste Isolation Pilot Plant.

ALT Blue, gold and white Graphic with text on left reading "EM Update, News on the World's Largest Environmental Cleanup, Vol. 17, Issue 36." Photo on right side of graphic shows EM-Los Alamos crews loading U.S. Nuclear Regulatory Commission-approved transportation casks used to safely transport TRU waste to the Waste Isolation Pilot Plant.
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Back in action! ⚙️ @HanfordSite's Tank-Side Cesium Removal system has resumed pretreating tank waste after a scheduled pause, processing 230,000 gallons for vitrification through September. See how pretreatment accelerates cleanup! bit.ly/4hyV5UD

Hanford Tank-Side Pretreatment System Resumes Operations After 6-month Pause

For the first time since February, the Hanford Site’s Tank-Side Cesium Removal System is back in operation, pretreating radioactive tank waste.

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To date, the EM-Los Alamos Office has shipped a record 82 TRU waste shipments to @WIPPNEWS this fiscal year, marking a 91% increase in shipments over FY25. ~370 cubic meters of TRU waste were safely removed from TA 54, Area G at @LosAlamosNatLab. Story: bit.ly/4ivGhXZ
A transuranic waste shipment departs Los Alamos, New Mexico, for the Waste Isolation Pilot Plant—the nation's only deep geologic transuranic waste repository. The waste will be permanently disposed of safely a half mile underground in an ancient salt formation.

ALT A transuranic waste shipment departs Los Alamos, New Mexico, for the Waste Isolation Pilot Plant—the nation's only deep geologic transuranic waste repository. The waste will be permanently disposed of safely a half mile underground in an ancient salt formation.

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One-tenth of an inch—that’s the change that enabled @SRSNews's Salt Waste Processing Facility to operate at 106% of its original capacity. Using AI to find the solution, engineers went from 17M gallons processed in six years to 3M gallons in just five months. 🔬⚡
SRS News@SRSNews
Sep 10
With just a tiny mechanical adjustment, @SRMCompletion has achieved record-breaking production at the Salt Waste Processing Facility. See how just one-tenth of an inch helped enable the facility to process at rates even beyond its original design capacity: energy.gov/em/articles/weir-…
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The Hanford Tank Waste panel at the #NCW2026 focused on EM’s new dual-path cleanup approach utilizing advanced technologies and community-backed milestones to safely expedite waste treatment and mitigate legacy risks.
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Legacy liabilities to energy assets! The "Enriching Communities" panel at the #NCW2026 highlighted how former nuclear sites are now prime locations for public-private partnerships and advanced reactors for affordable energy production.
EM Principal Deputy Assistant Secretary Joel Bradburne speaks at the Enriching Communities panel, "A renewed Purpose for America’s GDP Complex."

ALT EM Principal Deputy Assistant Secretary Joel Bradburne speaks at the Enriching Communities panel, "A renewed Purpose for America’s GDP Complex."

EM Oak Ridge Office Manager Erik Olds speaks at the Enriching Communities panel, "A renewed Purpose for America’s GDP Complex."

ALT EM Oak Ridge Office Manager Erik Olds speaks at the Enriching Communities panel, "A renewed Purpose for America’s GDP Complex."

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EM Assistant Secretary Tim Walsh delivers keynote address at the National Cleanup Workshop, highlighting EM's vital role aligning environmental cleanup with national security and AI leadership for America's future. Get key takeaways at bit.ly/4rcJLkp!
EM Assistant Secretary Tim Walsh delivers keynote address standing behind a podium at the National Cleanup Workshop.

ALT EM Assistant Secretary Tim Walsh delivers keynote address standing behind a podium at the National Cleanup Workshop.
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A new era of nuclear energy is taking shape in Oak Ridge! At ETEC’s Nuclear Opportunities Workshop, Tim Walsh & @GovBillLee shared how @OakRidgeOffice cleanup is converting 2,500+ acres into space for thousands of jobs & $10B in new nuclear investment. bit.ly/4hdW7V0

Gov. Bill Lee Joins DOE to Discuss Nuclear Growth in Oak Ridge

A new era of nuclear energy is taking shape in Oak Ridge.At the Ea...

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.@ENERGY’s American Energy Hub initiative is transforming land in Oak Ridge and attracting billions in private investment for affordable energy production and new job creation. WATCH to learn more! piped.video/watch?v=PcDU254o…

August Energycast - NOW Conference 2026, TRISO-X Expands, Radiant...

In this episode, we spotlight the 2026 Nuclear Opportunities Worksh...

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At the National Cleanup Workshop, 550+ @ENERGY leaders, industry experts, local officials and community stakeholders are exploring how restoration and revitalization can advance energy, innovation and national security. Turns out, there’s a lot to talk about 👀
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DOE Environmental Management retweeted
U.S. Department of Energy
@ENERGY
Sep 11
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.
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DOE Environmental Management retweeted
Secretary Chris Wright
@SecretaryWright
Sep 11
25 years ago, America was attacked—but we were not broken. We remember the nearly 3,000 lives lost, the families forever changed, and the first responders and everyday Americans who showed extraordinary courage in the face of evil. What followed was a powerful reminder of who we are as a nation: resilient, united, and determined to stand together when it matters most. We honor their memory today and always. We will never forget.
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