- Amrize Canada, formerly Lafarge Canada, is seeking Provincial approval for a site plan amendment for its Stouffville Pit lands.
- The amendment would permit a processing plant to recover reusable aggregates from imported soils.
- The facility would operate during warmer months and process about 300,000 tonnes of soil annually.
- Peak operations could add up to 60 trucks daily, on top of the 500–1,000 trucks already entering the pit.
- Noise compliance will be reviewed by the Province, and mitigation measures will be implemented if required.
- Public comments on the proposal are open until Sept. 15, 2025, through the Environmental Registry of Ontario.
Amrize Canada Inc., formerly Lafarge Canada Inc., is seeking a site plan amendment from Ontario’s Ministry of Natural Resources to allow an aggregate recovery processing plant at its Stouffville Pit. The site is located between York-Durham Line and Ninth Line, north of Bloomington Road.
Instead of importing soil solely for fill and land rehabilitation, Amrize would also process incoming materials to extract reusable aggregates.
“This innovative facility is designed to beneficially reuse excess soils as a valuable aggregate resource, transforming what was once considered waste into high-quality sand and stone products,” Chris Galway, a Senior Land Manager with Amrize Building Materials, Canada, said in comments to Bullet Point News. “Using state-of-the-art screening, washing, scrubbing, and recovery systems, the plant will efficiently separate aggregates from clays, silts, and other materials—maximizing reuse and minimizing environmental impact.”
The plant, along with stockpile areas for extracted materials, would occupy about 10 acres within the northeast quadrant of Amrize’s Stouffville lands. It is expected to handle approximately 300,000 tonnes of soil annually, though operations would be limited to warmer months as cold weather can inhibit processing.
Amrize’s plant would occupy approximately 10 acres of the Stouffville Pit site.
“At peak operation, this would translate to an estimated 60 additional trucks per day transporting material to and from the plant,” Galway said, which will add to the 500 to 1,000 trucks that already access the site daily. “Amrize remains committed to safety, efficiency, and community engagement, ensuring that logistics are managed responsibly and transparently.”
According to Galway, the processed materials will be used by Amrize or sold to customers for concrete, asphalt, housing, and infrastructure projects. Leftover clay and silt will become raw material for cement production or pit and quarry rehabilitation. The facility will also recycle water used during processing to prevent wastewater discharge into the surrounding environment.
If the site plan amendment is approved, Amrize will need to apply for an Environmental Compliance Approval for noise from the Ministry of the Environment, Conservation, and Parks (MECP). A required noise study will assess current operations and the proposed plant to ensure noise levels comply with MECP regulations.
“If required, mitigation measures—such as screening, shielding, or noise barriers—will be put in place,” Galway said. “Given the below-grade location of the facility, we anticipate minimal noise impact on surrounding areas.”
The amendment proposal has been posted to the Environmental Registry of Ontario, where the public can submit comments to the Province until Sept. 15, 2025. Additionally, public feedback regarding both the amendment and plant can be emailed directly to Galway.
“Amrize welcomes community feedback as part of its commitment to transparency, innovation, and sustainable construction practices,” he said.
