Air Quality Division: Permits: Denison Mines (USA) Corp.

The Arizona Department of Environmental Quality (ADEQ) has received applications for underground uranium mines from Denison Mines (USA) Corp. Denison has submitted these applications in order to obtain Air and Water Quality Control Permits for the operation of four mines - Arizona I Mine, Pinenut Mine, Canyon Mine and EZ Mine. The extracted uranium ore is not processed on-site; instead it is removed via haul trucks and transported for processing at a mill in Blanding, Utah. For the location of these mines, please view the Denison Mines Map.

Final Documents for Issuance of the Pinenut, Canyon, and EZ mine Air Quality Permits, and General Aquifer Protection Permit (APP) for the EZ Mine

Arizona I Mine

On September 01, 2009, pursuant to Arizona Administrative Code (A.A.C.) and Arizona Revised Statutes (A.R.S.) ADEQ issued Air Quality Permit 46700 for the Arizona I Mine. The original Individual Aquifer Protection Permit (APP) Permit No. P-102008 was issued for the Arizona I site on October 14, 1994. An Amendment to Permit No. P-102008 was issued on March 20, 2009.

Air Quality Documents

Water Quality Documents

Pinenut Mine

Denison Mines (USA) Corp. submitted an Air Quality Control Permit Application on January 06, 2010, and a Water Quality Aquifer Protection Permit (APP) Application on March 20, 2009. The final Discharge Authorization for the 3.04 General Aquifer Protection Permit (APP) was issued on August 31, 2009.

Air Quality Documents

Water Quality Documents

Canyon Mine

Denison Mines (USA) Corp. submitted an Air Quality Control Permit Application on January 06, 2010, and a Water Quality Aquifer Protection Permit (APP) Application on March 20, 2009. The final Discharge Authorization for the 3.04 General Aquifer Protection Permit (APP) was issued on August 31, 2009.

Air Quality Documents

Water Quality Documents

EZ Mine

Denison Mines (USA) Corp. submitted an Air Quality Control Permit Application on June 16, 2010, and a Water Quality Aquifer Protection Permit (APP) Application on June 15, 2010.

Air Quality Documents

Water Quality Documents


For more information, please contact:

Trevor Baggiore
(602) 771-2308
(800) 234-5677 -Toll Free