Quebec announced on July 1, 2026 that the province's largest waste burial site, the Terrebonne megasite, will undergo an urgent enlargement to add roughly 1.2 million tonnes of capacity. The expansion is intended to accommodate additional waste volumes that the existing facility can no longer contain.

The Terrebonne location, situated in the outskirts of the city of the same name, has long served as the primary landfill for the province. As the biggest waste burial site in Quebec, it handles a substantial share of the region's municipal and industrial refuse. Provincial officials indicated that the new capacity will allow the site to continue operating without interruption while the province addresses growing waste streams.

The decision to increase the landfill's capacity comes amid a broader need to manage waste more effectively across the province. By adding 1.2 million tonnes of storage space, the megasite will be better positioned to receive future deposits, ensuring that waste collection services remain uninterrupted for communities that rely on the site.

Construction work to enlarge the landfill is set to begin immediately following the announcement. While specific timelines for completion were not disclosed, the description of the project as an "urgent enlargement" suggests a rapid implementation schedule. The expansion will involve extending the existing burial area and enhancing the infrastructure needed to handle the increased volume of material.

Environmental monitoring and compliance with provincial regulations will continue to guide the project, as the landfill remains subject to strict oversight. The addition of new capacity is expected to support the province's waste management objectives while maintaining the operational integrity of its largest disposal site.

The expansion of the Terrebonne megasite underscores the province's ongoing commitment to ensuring that waste disposal infrastructure keeps pace with demand, providing a continued solution for the safe burial of waste across Quebec.