The Dewey Burdock project area, near Edgemont, S.D., in 2014. Photo: Azarga Uranium

The Environmental Protection Agency has issued its final permits for Canada-based Azarga Uranium’s underground injection control (UIC) activities at the Dewey Burdock in situ recovery (ISR) uranium project in South Dakota, the company announced recently.

The EPA’s action includes two permits: a UIC Class III Area Permit for the ISR of uranium and a UIC Class V Area Permit for deep injection wells that will be used to dispose of ISR-process waste fluids after they have been treated to meet radioactive waste and hazardous waste standards.

The EPA is also finalizing an aquifer exemption approval in connection with the Class III permit to allow for resource recovery in the uranium-bearing portions of the Inyan Kara group of aquifers.