Air Emissions Permit Renewal for CM Greenfield Power Plant - St. Clair Township

Official title: CM Greenfield Power Corp. - Environmental Compliance Approval (air)

Open Regulations & Permits Environment & Climate Natural Resources
A natural gas power plant near Courtright, Ontario wants to renew its air emissions permit and add new equipment. The facility releases nitrogen oxides, carbon monoxide, and other pollutants from its turbines and generators. They're also adding an abrasive blasting unit and updating three combustion turbines.

Why This Matters

Live near St. Clair Township? This power plant releases pollutants into the air you breathe. The permit renewal sets limits on how much nitrogen oxide, particulate matter, and ammonia they can emit. If you have concerns about air quality in the Courtright area, now's the time to speak up.

What Could Change

If approved, CM Greenfield can continue operating and add an abrasive blasting unit. The updated permit will set new emission limits for their three upgraded turbines. These limits will have an expiry date, requiring another renewal application down the road.

Key Issues

  • Should the air emissions permit be renewed with the proposed limits?
  • Are the emission controls adequate for the new abrasive blasting unit?
  • What impacts could the updated combustion turbines have on local air quality?

How to Participate

  1. Review the proposal details on this consultation page to understand what's being requested.
  2. Submit your comments through the Environmental Registry by the January 9, 2026 deadline. You can also email enviropermissions@ontario.ca or call 1-800-461-6290.

Submit Your Input