EPA in Arizona

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

  

  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

  

  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)

  

  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 »