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Navajo Nation: Cleaning Up Abandoned Uranium Mines

  • Latest News

    • EPA and Navajo Nation Select Cleanup Plan to Remove Waste at Quivira Mines Site

    • EPA Decides on Cleanup Plans for Seven Abandoned Uranium Mine Sites in Navajo Nation

     
    More Recent News Releases
  • Lukachukai Mountains Mining District Added to Superfund National Priorities List

    • Press Release
    • EPA Fact Sheet: Lukachukai Mountain Mining District is Now a Superfund Site (pdf) (2.26 MB, March 2024)
    Learn More About LMMD
  • Current Ten-Year Plan

    Learn How Five Federal Agencies and the Navajo Nation Partnered to Address Contamination.

    View Federal Plans
  • Find Us on Facebook

    The Navajo Nation Abandoned Uranium Mines Facebook page has been retired. Please follow us at the EPA in the Pacific Southwest Facebook page for updates on our work on Navajo Nation and throughout the Pacific Southwest.

     
    Connect With Us!

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

From 1944 to 1986, nearly 30 million tons of uranium ore were extracted from Navajo lands under leases with the Navajo Nation. This website describes how five federal agencies are working together to reduce the highest risks to Navajo people from uranium contamination resulting from the abandoned mines.

Related Content: Tribal Lands in EPA's Pacific Southwest | Environmental Protection in Indian Country | Navajo Nation Radon Program

 
  • Abandoned Mines Cleanup

    Earth movers and water truck wetting road surface

    Information about the progress of EPA's cleanup of abandoned uranium mines on the Navajo Nation, including health impacts, major enforcement and removal milestones, and community actions.

    Learn About Cleanups
  • Contaminated Structures

    Workers standing in front of a  completed home.

    USEPA and the Navajo Nation Environmental Protection Agency’s Contaminated Structures Program evaluates structures on Navajo Nation that may have been constructed using abandoned mine materials or built on or near abandoned mines.

    Learn About Structures
  • Health Effects of Uranium

    Man filling up water drums at water hauling station in Ganado

    Information regarding the health effects of uranium, its potential impact on health, methods to avoid exposure, and efforts to increase access to safe drinking water.

    Learn about the Effects
  • Contracting With EPA

    Learn About Contracting With EPA

    Learn about contract opportunities with EPA and resources for abandoned uranium mine (AUM) cleanup work on Navajo Nation.

    Learn about Contracting
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 1, 2025
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