Cobden Wastewater Treatment Plant - Secondary Treatment Facility in Cobden, Ontario

The Cobden Wastewater Treatment Plant is a municipal facility located in Cobden, Ontario, within the Whitewater Region of Renfrew County. It serves a population of approximately 1,508 residents, providing secondary treatment to manage domestic wastewater from the community. As a secondary treatment plant, it utilizes biological processes to reduce organic matter and suspended solids, meeting the standards required under Ontario's wastewater regulations. The plant discharges a treated effluent volume of 677 cubic meters per day, reflecting its capacity to handle the local wastewater load. The treated effluent is released into the local watershed, which ultimately drains into the Ottawa River and then the St. Lawrence River. This downstream connection to the Great Lakes-St. Lawrence system underscores the importance of maintaining treatment quality to protect aquatic ecosystems and downstream water users.

The plant discharges into a local watercourse that flows into the Ottawa River, a major tributary of the St. Lawrence River. The Ottawa River supports diverse aquatic life, including fish species such as walleye and northern pike, and provides habitat for migratory birds. The St. Lawrence River is a critical freshwater ecosystem connecting the Great Lakes to the Atlantic Ocean, making effluent quality management essential for downstream ecological health.