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Contact Superfund, Pacific Southwest

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Addressing Uranium Contamination
on the Navajo Nation

Abandoned Uranium Mine Site

Clean Up of Abandoned Mines

As described in detail in the Five-Year Report, US EPA completed on-the-ground screening of 521 abandoned uranium mine areas. US EPA and the Navajo EPA are using the Comprehensive Database and Atlas to determine which mines should be cleaned up first. US EPA continues to research and identify Potentially Responsible Parties (PRPs) under Superfund to contribute to the costs of cleanup efforts.

In consultation with Navajo EPA, US EPA is conducting cleanup efforts at the following mines. Details and photos of these actions can be found in the links provided in the below table.

Mine Site

Region

Action

Status

Northeast Church Rock mine

Eastern

Cleanup

Third interim action occurred September/October
2012. Cleanup to occur 2016-2020.
Northeast Church Rock Mine

Mariano Lake Mine

Eastern

Investigation/Cleanup

Urgent actions have been taken. Investigation ongoing. Evaluation of Cleanup options in 2013.

Quivira Mine

Eastern

Investigation/Cleanup

Second interim action occurred September 2012.
Cleanup to occur 2016-2020. Quivira Mine  Exiting EPA (disclaimer)

Skyline Mine

North Central

Cleanup

Clean up completed October 2011; total cost of $8M. 
Skyline Mine  Exiting EPA (disclaimer)

Cove Transfer Stations   

Northern

Cleanup

Investigation complete. Urgent actions occurred October 2012. Cove Transfer Stations  Exiting EPA (disclaimer)

Sections 32 and 33

Eastern

Cleanup

Investigation ongoing. Urgent actions occurred October/November 2012.
Sections 32-33 Abandoned Uranium Mine  Exiting EPA (disclaimer)

Ruby Mines 1-4

Eastern

Negotiations with responsible party

Starting negotiations with responsible party. Urgent actions conducted October 2012

20 Mine Claims in Cameron Area

Western

Negotiations with responsible party

Starting negotiations with responsible party. Site visits conducted September and November 2012.

map showing mines

Related Information

Pacific Southwest NewsroomPacific Southwest Programs Grants & FundingUS-Mexico Border Media CenterCareers About EPA Region 9 (Pacific Southwest)A-Z Index

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