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Grants Mining District in New Mexico

  • San Mateo Creek Basin

    The legacy uranium mines and mill sites in the Grants Mining District may have contributed to degradation of groundwater quality within the San Mateo Creek Basin. Read more about San Mateo Creek Basin.

  • Homestake Mining Company Superfund Site

    Uranium milling operations at the Homestake Mining Company site began in 1958. The mill was decommissioned and demolished from 1993 to 1995. Read more about Homestake Mining Company.

  • Jackpile-Paguate Mine Superfund Site

    Mining operations were conducted from 1953 through early 1982 from three open pits: Jackpile, North Paguate, and South Paguate. Read more about Jackpile-Paguate Mine. 

The Grants Mining District was the primary focus of uranium extraction and production activities in New Mexico from the 1950s until the late 1990s. The belt extends along the southern margin of the San Juan Basin in Cibola, McKinley, Sandoval, and Bernalillo Counties as well as on tribal lands.

Several mines in this area are under the jurisdiction of New Mexico Environment Department, New Mexico Energy, Minerals, and Natural Resources Department, and EPA. EPA is working with state, local, and federal partners to assess and address health risks and environmental effects of the mines. For more information, read The Legacy of Abandoned Uranium Mines in the Grants Mining District, New Mexico.

Geographical Subareas, Maps, and Figures

  • San Mateo Creek Basin (Including the Central Study Area)
    • Ambrosia Lake
      • Homestake Mines Removal Site Evaluations
    • Johnny M Mine
    • Central Study Area (CSA)
  • Marquez
  • Laguna
  • Grants Mining District Map
  • Results of Aerial Surveys of Gamma Radiation around Ambrosia Lake

Mine Sites

  • Tronox Mines (former Kerr-McGee Mines)
  • Johnny M Mine
  • Ambrosia Lake Homestake Mines
  • Jackpile-Paguate Mine

Grants Mining District Planning and Community Involvement

  • Community Involvement Plans
  • First Five-Year Plan
  • Second Five-Year Plan
  • 2024-2028 Grants Mining District Five-Year Plan

Region-Wide Studies, Investigations, and Technical Documents

  • Aerial Radiological Surveys- Ambrosia Lake
  • Aerial Radiological Surveys- Poison Canyon
  • San Mateo Creek Basin Phase 1 Groundwater Investigation
  • San Mateo Creek Basin Phase 2 Groundwater Investigation
  • All Technical Documents

Community Cleanups

  • Cleanups on Tribal Lands
  • Cleanups on Non-tribal Lands
  • Community Cleanup Documents

Health Information

  • Health effects of uranium
  • Biometric study of uranium exposure

Other State and Federal Resources

  • Nuclear Regulatory Commission Regulated Uranium Recovery Sites Decommissioning Page 
    • https://www.nrc.gov/info-finder/decommissioning/uranium/index.html
  • Department of Energy Legacy Management
    • https://www.energy.gov/lm/lm-sites
  • Department of Energy Defense Related Uranium Mines Program
    • ​​​​​​​​​​​​​​https://www.energy.gov/lm/defense-related-uranium-mines-program
  • New Mexico Energy, Minerals, and Natural Resources Department – Mining and Minerals Division, Mining Act Reclamation Program
    • ​​​​​​​​​​​​​​https://www.emnrd.nm.gov/mmd/mining-act-reclamation-program/

Related Superfund Alternative Approach Sites or NPL Sites

  • Homestake
  • United Nuclear Mill Site
  • Jackpile-Paguate
  • San Mateo Creek Basin- Central Study Area

2024-2028 Grants Mining District Five-Year Plan now available

2024-2028 Grants Mining District Five-Year Plan

Region 6 has released the final 2024-2028 Grants Mining District Five Year Plan. The plan, along with a summary of past accomplishment and future goals and a response to comments received is located here.

The plan follows the release of the draft on October 31, 2023 for public comment and included community meetings in Milan and San Mateo Village in November 2023.

Please contact Kevin Shade, 214-665-2708 or shade.kevin@epa.gov for any questions.

 

Related Resources

  • Superfund
  • Radon
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Last updated on April 8, 2025
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