Public Notice: Environmental Assessment Report Posted for the Wheeler River Project

August 20, 2025: The Canadian Nuclear Safety Commission (CNSC) has now posted the Environmental Assessment (EA) Report for the Denison Mines Corp.'s proposed Wheeler River Project The EA report is part of the Commission Member Document (CMD) package, related to Denison's licence application to Prepare Site and Construct. 

The EA Report presents CNSC staff's findings on the potential environmental effects of the proposed in-situ recovery uranium mining project located in northern Saskatchewan. It reflects a comprehensive technical review by the Federal Indigenous Review Team and incorporates feedback received from: 

• Indigenous Nations and communities 
• Other federal departments and agencies 

The report evaluates whether the project is likely to cause significant adverse  environmental effects, taking into account proposed mitigation measures and the implementation of follow-up programs. 

The EA Report and supporting documents are available here:

• Commission Member Document (CMD) 25-H9 CNSC Staff Submission (including EA Report and Indigenous Consultation Report) (Added Sept 3, 2025)
• EA Report 

Next Steps 

The CMD, EA Report and Consultation Report will be considered by the Commission during a public hearing, where interested parties—including Indigenous Nations and communities, stakeholders, and members of the public—will have the opportunity to participate. 
Details on the hearing, including how to register to participate or submit written interventions can be found here.

For more information, please contact: 

The CNSC Wheeler River Project Team 
Canadian Nuclear Safety Commission 
Email: WheelerRiver@cnsc-ccsn.gc.ca 
Web: Wheeler River Project (iaac-aeic.gc.ca)