Skip to main content

WQD | Permit of Interest | Pinyon Plain Mine

Water Quality Permit of Interest

Pinyon Plain Mine

Revised on: May 8, 2024 -  10:26 p.m.

This permit of interest online resource provides interested parties easy access to information about the Pinyon Plain Mine, owned by Energy Fuels Resources (USA) Inc. (EFRI), formerly Canyon Mine.

Facility Information

Pinyon Plain Mine is a uranium mine owned by EFRI and located in Coconino County. It operates under a United States Forest Service (USFS) Record of Decision (ROD) and detailed Plan of Operations approved by USFS and prepared after USFS completed its Environmental Impact Statement (EIS) under the National Environmental Policy Act. 


The facility is located in north central Arizona, about 6 miles southeast of the Town of Tusayan in the Tusayan Ranger District of the Kaibab National Forest, approximately 9 to 15 miles south of the Grand Canyon.

Recent Permitting Activity 

  • On April 8, 2024, EFRI applied for a Minor Amendment to its Individual Aquifer Protection Program (APP) Permit | View Application >

Facility Reports

  • Annual Water Quality Report 2023 | View >

Facility Archives

Permits and Documents:*

  • Minor Amendment to the APP (2022)
    • Minor Amendment Executive Summary | View >
  • Individual APP Permit (2021) | View >
    • Summary and Response to Public Comments | View >
    • Executive Summary | View >
    • Individual APP Permit | View >
  • Arizona Pollutant Discharge Elimination System (AZPDES) Industrial Stormwater Mining Multi-Sector General Permit | View >
  • Environmental Impact Statement (EIS)
    • The 1986 decision to issue the EIS was upheld in appeals and court cases. Additional facility history, court decision documents, and related information are available on the USFS Pinyon Plain Mine webpage | Visit Website > 

Environmental Inspections and Enforcement:*

  • Groundwater Protection | View >

*For older permits and documents, please submit a records request | Submit > 

Looking for air quality permits related to this facility? 

Pinyon Plain Mine also has air quality permits issued by ADEQ | View >

Agency Roles and Responsibilities | View >

Pinyon Plain Mine:

Energy Fuels Resources Page | View >

EPA Page  | View >

FWS  | View >

USFS Page | View >

AZ Department of Emergency Management and Military Affairs | View >

AZ Game & Fish | View >

AZ State Mine Inspector | View>

USGS Page(s) |  View >

• Perched Groundwater Well Data | View >

• Regional Groundwater Well Data | View >

• Uranium and Arsenic in Groundwater Mapper | View > 

• Water Quality Results | View > 

Publications: Science Decision Making on Uranium Mining in AZ | View >