St George Water Pollution Control Plant - Secondary Treatment in St George, Ontario

St George Water Pollution Control Plant is a municipal wastewater treatment facility located in St George, Ontario, Canada. The plant serves a small community of 1,855 residents and operates under Ontario's regulatory framework for wastewater treatment. The plant provides secondary treatment, which is the standard level required for small agglomerations in Canada. Under the Canada Water Act and provincial regulations, secondary treatment ensures removal of biodegradable organic matter and suspended solids. The plant's discharge volume of 833 cubic meters per day reflects its small scale. The treated effluent is discharged into a local watercourse that ultimately drains into the Grand River watershed and then to Lake Erie. This makes the plant's performance important for protecting the Great Lakes ecosystem, which supports diverse aquatic life and provides drinking water for millions.

The plant discharges into a tributary of the Grand River, which flows into Lake Erie, part of the Great Lakes system. Lake Erie is ecologically sensitive, supporting diverse fish populations and serving as a critical migratory corridor for birds. The Grand River watershed is one of the most populated in Ontario, and maintaining water quality is essential for downstream communities and ecosystems.