RBS Saint Alexandre de Kamouraska Wastewater Treatment Plant - Saint-Alexandre-de-Kamouraska, Québec

RBS Saint Alexandre de Kamouraska is a wastewater treatment plant located in Saint-Alexandre-de-Kamouraska, a municipality in the Bas-Saint-Laurent region of Québec, Canada. The plant serves a population of approximately 1,683 residents and is currently operational, providing essential sanitation services to the community. As a small-scale facility in Canada, the plant is subject to federal and provincial regulations, including the Canadian Environmental Protection Act and Québec's Environment Quality Act. These frameworks require appropriate treatment to protect receiving waters, with secondary treatment being typical for communities of this size. The plant discharges treated effluent into the local watershed, which ultimately drains into the St. Lawrence River via the Kamouraska River or nearby tributaries. The St. Lawrence River is a major ecological corridor supporting diverse aquatic life, including fish species such as Atlantic sturgeon and American eel, and is a critical waterway for the region's biodiversity.

The plant's treated effluent enters the local drainage network, which flows into the Kamouraska River and then into the St. Lawrence River estuary. The St. Lawrence River is a vast, ecologically sensitive system that supports migratory fish, waterfowl, and marine mammals. Downstream, the estuary transitions into the Gulf of St. Lawrence, a productive marine environment. Protecting water quality in this watershed is vital for maintaining healthy aquatic habitats and supporting local fisheries and recreational activities.