Air Emissions Permit for Walker Aggregates Concrete Plant - Clarksburg
Official title: Walker Aggregates Inc. - Environmental Compliance Approval (air)
Walker Aggregates wants to update its air emissions permit for a ready-mix concrete plant in Clarksburg, Grey County. The new permit would cover cement silos, dust collectors, and concrete loading equipment. Emissions include cement dust, silica, and nitrogen oxides.
Why This Matters
Live near this concrete plant on Grey County Road 40? This permit affects what gets released into the air you breathe. Crystalline silica and particulate matter are the main concerns for nearby residents.
What Could Change
If approved, Walker Aggregates gets a consolidated air permit with production limits. The permit includes "limited operational flexibility" conditions that expire and must be renewed. New emission sources that weren't previously approved would become legal.
Key Issues
- Should the company receive approval for previously unapproved emission sources?
- Are the proposed production limits adequate to protect local air quality?
- What conditions should apply to crystalline silica and particulate emissions?
How to Participate
- Review the proposal details on this consultation page. Note that some supporting materials may only be available in person.
- Submit your comments through the Environmental Registry before January 18, 2026. You can also email enviropermissions@ontario.ca or call 1-800-461-6290.