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  1. Home
  2. Navajo Nation: Cleaning Up Abandoned Uranium Mines
  3. Legal Documents and Settlements

Tronox Abandoned Uranium Mines

This page provides information about the sites to be addressed using funds from the 2015 Tronox Bankruptcy Settlement Agreement.

Public Notice

Public Comment Period for the Recommended Uranium Mine Cleanup Alternatives
  • Quivira Mines: Engineering Evaluation Cost Analysis (pdf) (34.96 MB, March 13, 2024)
  • Section 32/33 Mines: Engineering Evaluation Cost Analysis (pdf) (18.88 MB, March 4, 2024)

The EE/CA Public Comment Period Closed May 22, 2024

Public Meeting Materials from March 23, 2024

  • Presentation by EPA and Navajo Nation EPA on Quivira Mines and Section 32/33 Mines Engineering Evaluation/Cost Analysis (pdf) (3.32 MB, March 23, 2024)
  • Presentation by the State of New Mexico Environment Department (pdf) (3.9 MB, March 23, 2024)
  • Presentation by the State of New Mexico Energy, Minerals, and Natural Resources Department (pdf) (139.55 KB, March 23, 2024)
  • Proposed Red Rocks Disposal Facility: Design, Operations, and Closure (video)
  • Public Meeting Flyer: Recommended Cleanup Alternative for Quivira and Section 32/33 Abandoned Uranium Mine (AUM) Sites (pdf) (1.12 MB, March 2024)

Upcoming events related to Quivira and Section 32/33 Abandoned Uranium Mines will appear here when available.

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Background

In 2015, EPA recovered almost $1 billion from a litigation settlement to address over 50 mines for which Kerr McGee Corporation and its successor, Tronox, have responsibility (Press Release). Navajo Nation received more than $40 million from the settlement.

The Tronox Incorporated bankruptcy settlement provides for the payment of funds, either directly to environmental regulators or through the trusts created pursuant to the settlement agreement, in connection with numerous sites and facilities throughout the country. The payments for these sites will address a wide variety of environmental contamination.

The sites covered by the settlement agreement include forty-nine former uranium mines in and near the Navajo Nation territory in the southwest of the U.S., and may also include certain additional mines listed in Attachment B to the settlement agreement, if designated in the future.

Contact

Jesse Kass (kass.jesse@epa.gov)
Remedial Project Manager
(415) 972-3041

Tronox

Eastern Region
  • Quivira Mines
  • Ambrosia Lake Mine
  • Section 32/33 Mines
Northern Region
  • Cove Mines (Tronox)

Related Content

  • Fact Sheets
  • Northern Agency RSE Report
  • Cove Air Study Final Report
  • Settlement Factsheet
  • Bankruptcy Settlement Case Summary
  • Settlement and Litigation Documents
  • Annual and Quarterly Reports
Tronox Mines on and Near Navajo Nation Lands
Click to Enlarge

Navajo Nation: Cleaning Up Abandoned Uranium Mines

  • Abandoned Mines Cleanup
    • CENTRAL REGION
      • Community Involvement Plans
      • CYPRUS AMAX & WESTERN NUCLEAR MINES
      • BLACK MESA MINING DISTRICT
    • EASTERN REGION
      • Community Involvement Plans
      • Fact Sheets
      • AMBROSIA LAKE MINES (TRONOX)
      • CYPRUS AMAX & WESTERN NUCLEAR MINES
      • MAC AND BLACK JACK MINES
      • MARIANO LAKE MINE (Old Gulf Mine)
      • NORTHEAST CHURCH ROCK MINE
      • OLD CHURCH ROCK MINE
      • QUIVIRA MINES
      • RUBY MINES
      • SECTION 32/33 MINES (TRONOX)
    • NORTH CENTRAL REGION
      • SKYLINE MINE
      • Community Involvement Plan
    • NORTHERN REGION
      • Community Involvement Plans
      • COVE AREA MINES
      • LUKACHUKAI MOUNTAINS MINING DISTRICT
      • CYPRUS AMAX & WESTERN NUCLEAR MINES
    • WESTERN REGION
      • Community Involvement Plans
      • Fact Sheets
      • Maps
      • EL PASO NATURAL GAS MINES
      • ENPRO MINES
      • SECTION 9 LEASE MINES
    • SUPERFUND NPL SITES (Lukachukai)
  • Administrative Records
  • ASPECT Aerial Survey
  • Atlas Screening Assessment Report
  • Community Involvement Plans
  • Contaminated Structures Program
  • Fact Sheets
  • Legal Documents and Settlements
    • TRONOX MINES
      • Fact Sheets
      • Financial Reports
      • Northern Agency RSE Report
    • TRUST MINES
      • Fact Sheet
      • Legal Document and Settlements
      • Technical Reports
  • Site Screen Reports
  • Ten-Year Plan (2020-2029)
    • Related Documents
  • Treatment Technology Pilot Studies
  • Health Effects of Uranium
    • Water Sampling Results
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Last updated on May 19, 2025
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