UMTRA Program

Navajo UMTRA entered into Cooperative Agreement with the U.S. Department of Energy (DOE) to assist/participate in the remedial actions activities of four Navajo UMTRA sites pursuant to the Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA). These sites are located in Tuba City, AZ; Monument Valley, AZ; Mexican Hat, UT; and Shiprock, NM.

Navajo UMTRA provides oversight, monitoring and review of the remedial action work at these sites. BY 1994, all surface remediation which included disposal of residual radioactive materials and debris has been completed pursuant to US EPA cleanup standards and regulations. By 1999, subsurface remediation work commenced by completing site characterization, developing remedial action plans with conceptual models and designs, and monitoring ground water remediation activities at three sites: Mexican Hat site requires no further active ground water remediation.


December 7 - Shiprock Light Parade

December 8 - 4 Corners Professional Chapter Committee Meeting - DNR Window Rock, AZ

December 25 - Merry Christmas from Navajo AML 

December 27 - DURAC Meeting @ Haystack/Prewitt Chapter

January 1 - Happy New Year from Navajo AML 

January 2019 - Piñon High School STEM-station Event Day 


Lakewood uranium company gets federal OK to expand in Utah (Feb. 28)




Navajo, Havasupai resist uranium mining (Feb. 27)




Amid Calls for a U.S. Uranium Mining Renewal, Recalling Its Toxic Past (Feb. 27)



Before the US Approves New Uranium Mining, Consider Its Toxic Legacy (Feb. 24)



Navajo President: Go To College, Then Bring That Knowledge Home (Feb. 18)



Researchers measure mixed metals mining contamination on Native Americans (Feb. 4)