Air Emissions Permit Amendment for Greenstone Gold Mine - Increased Production
Official title: Greenstone Gold Mines GP Inc. - Environmental Compliance Approval (air)
Greenstone Gold Mines wants to increase production at their open pit gold mine near Geraldton, Ontario. They're asking to nearly double their mining rate to 78 million tonnes per year. The mine releases pollutants including sulphur dioxide, nitrogen oxides, hydrogen cyanide, nickel, and lead into the air.
Why This Matters
Live near Geraldton or in the Municipality of Greenstone? This mine expansion could mean more air pollution in your community. The facility emits substances like hydrogen cyanide and lead that can affect air quality and health.
What Could Change
If approved, the mine could extract up to 78 million tonnes of rock per year and process 34,000 tonnes of ore daily. That's a significant increase in operations. The approval would include limits on emissions, but those limits would eventually expire and need renewal.
Key Issues
- Should the mine be allowed to increase its mining rate to 78 million tonnes per year?
- Are the proposed air emission limits adequate to protect local air quality?
- What are the impacts of increased emissions of pollutants like hydrogen cyanide, nickel, and lead?
How to Participate
- Review the proposal details on this consultation page. Supporting materials may be available to view in person by contacting the ministry.
- Submit your comments by email to enviropermissions@ontario.ca before February 20, 2026.