Mark Kelly

10/29/2025 | Press release | Distributed by Public on 10/29/2025 15:46

Kelly, Lummis Bill to Improve Cleanup of Abandoned Hardrock Mines Advances Out of Committee

Watch Senator Kelly's remarks during the committee hearing in support of his bill here.

Today, Senators Mark Kelly (D-AZ) and Cynthia Lummis' (R-WY) Legacy Mine Clean Up Act advanced out of the Senate Committee on Environment and Public Works. The bipartisan, bicameral legislation would cut bureaucratic red tape and hold the federal government accountable for better coordinating efforts to clean up abandoned uranium, copper, gold, and other hardrock mines that continue to pose environmental and public health risks. The bill-which passed the Senate unanimously last Congress-is now eligible to receive a vote on the Senate floor.

"There are tens of thousands of abandoned hardrock mines across the West. While these mines pose serious health and safety risks to nearby communities, efforts to clean them up are often stalled by federal bureaucracy. For example, there are more than 500 abandoned uranium mines on the Navajo Nation, and very few have been cleaned up to date," said Kelly during his remarks in the committee hearing.

Kelly continued, "Our bipartisan bill will start fixing that by establishing an office at EPA to specifically focus on problems facing the western United States, like abandoned mines."

"I'm delighted to see this legislation advance through the Senate Committee on Environment and Public Works and appreciate the opportunity to collaborate once more with Senator Kelly in establishing permanent status for this important office, which will help safeguard the Wyoming and western landscapes that we all cherish. By improving coordination between Federal, State, and Tribal authorities on hardrock mine cleanup, this bill will improve the health and safety of our western communities," said Lummis.

Specifically, the Legacy Mine Cleanup Act would:

  • Establish OMDP with three primary goals:
  1. Create accountability: Maintain an "emphasis list" of abandoned mine sites to be prioritized for cleanup and regularly report on cleanup progress. Assume responsibility for regularly updating the Interagency Plan to Address Uranium Contamination on the Navajo Nation.
  2. Coordinate stakeholders: Work with EPA regional offices, federal agencies, state and local governments, Good Samaritans, and Tribal nations to promote community engagement, improve interagency coordination, and identify roadblocks to completing cleanups. Provide administrative and technical assistance to state, local, and Tribal stakeholders.
  3. Facilitate cleanups: Identify agency-wide process improvements, research new technologies, and highlight best practices to enable faster cleanups. Work with conservation organizations to facilitate voluntary projects that improve conditions at abandoned mines.
  • Provide dedicated funding to assist Tribal communities with hardrock mine cleanup projects.
  • Cut bureaucratic red tape to allow Tribes to more easily receive assistance in cleaning up abandoned hardrock mines.

Background:

The Government Accountability Office estimates there are approximately 140,000 abandoned hardrock mines in the United States, largely in the West. Unsecured mine tunnels, toxic waste piles, and other hazards, known as mine features, are found at abandoned hardrock mines across federal and nonfederal lands. Kelly and Lummis' legislation would establish the Environmental Protection Agency's Office of Mountains, Deserts, and Plains (OMDP) to help accelerate cleanup of abandoned mine sites by implementing best practices, improving coordination with state and tribal partners, and maintaining a list of mine sites prioritized for cleanup.

The Legacy Mine Cleanup Act builds on Kelly's broader efforts to accelerate the cleanup of abandoned mines. Last year, Kelly's Good Samaritan Remediation of Abandoned Hardrock Mines Act, bipartisan, bicameral legislation to cut red tape and make it easier for "Good Samaritans" such as state agencies, nonprofits, and other groups to clean up and improve water quality around abandoned mines, was signed into law. Kelly has also secured funding for cleanup of abandoned uranium mines on the Navajo Nation, championed legislation to support innovative paths to cleanup, and repeatedly raised these issues with administration officials.

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