Navajo Nation: Cleaning Up Abandoned Uranium Mines

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

EPA Settles Claims that Arizona Company Violated Clean Air Act in the 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

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.