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EPA in Arizona

  • Latest News

    • EPA Protects the Little Colorado River from Impacts of Abandoned Uranium Mines, Announces Removal Action to Advance Cleanup of Contamination

    • United Nuclear Corporation and General Electric to Perform $63 Million Cleanup of Uranium Mine Waste at Northeast Church Rock Mine in Navajo Nation

    • EPA Awards $2.5 Million in Grants to Assess and Clean Up Arizona Communities

     
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    Learn about the environment in your neighborhood.

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

  • Arizona Topics and Resources

    Glen Canyon Rainbow Bridge National Park Service

    Topics and resources for Arizona-specific projects and programs, including Tuba City Dump, Desotec, Nammo Defense Systems, and more.

    Topics and Resources »
  • Abandoned Uranium Mines Cleanup

    Desert Vista

    We're working with our partner agencies and local communities to clean up contamination from abandoned uranium mines on Navajo Nation lands.

    Uranium Mine Cleanup »
  • U.S.-Mexico Border Program (Border 2025)

    Rio Grande flowing in south Texas through a canyon

    The Border 2025 program is a collaborative effort between the United States and Mexico to protect the environment and public health of the nearly 12 million people living along the border.

    Border 2025 »

News, Events and Public Notices

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About EPA Region 9 (Pacific Southwest)
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Contact Us about EPA in Arizona to ask a question, provide feedback, or report a problem.
Last updated on September 3, 2025
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