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Environmental Cleanup

Learn more about the history, cleanup activities and possible future uses of the Hanford Site, a 586-square-mile government site in southeast Washington State. | Video courtesy of the Energy Department.

The Energy Department is committed to a safe, complete cleanup of the environmental legacy of five decades of government-sponsored nuclear weapons development and nuclear energy research. As part of this mission, we safely and cost-effectively transport and dispose of low-level wastes; decommission and decontaminate old facilities; remediate contaminated soil and groundwater; and secure and store nuclear material in stable, secure locations to protect national security.


An Update on the Hanford Site and Cleanup Progress
Environmental Cleanup

A new Framework underscores the Energy Department's commitment to cleaning up the legacy of Cold War plutonium production at the Hanford site in the state of Washington.

Commemorating the Historical Contributions of the K-25 Site in Tennessee
The 44-acre K-25 superstructure made significant historical contributions during its years of operation. | Photo credit Oak Ridge Office photographer Lynn Freeny.

A new project will turn the old K-25 site in Tennessee into a new industrial park for future economic development.

The New Gold Standard: Environmental Management Introduces the First LEED Gold Industrial Facility
The 200 West Groundwater Treatment Facility is shown here after completion of construction this summer. | Photo courtesy of Zachary Carter with Mission Support Alliance (MSA) at Hanford.

The building’s efficient design is expected to result in an energy cost savings of more than 70 percent over the life of the facility.

Hitting #1,000
The 1,000th shipment is moved from Los Alamos National Laboratory to Waste Isolation Pilot Plant on June 26, 2012. | Photo from the Energy Management Office.

Los Alamos National Laboratory hits a milestone in moving transuranic waste.