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.
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Arizona Topics and Resources
Topics and resources for Arizona-specific projects and programs, including Tuba City Dump, Desotec, Nammo Defense Systems, and more.
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Abandoned Uranium Mines
We're working with our partner agencies and local communities to cleanup contamination from abandoned uranium mines on Navajo Nation lands.
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U.S.-Mexico Border Program
The 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.