Stoney Point Wastewater Lagoons - Lakeshore, Ontario Secondary Treatment Plant

Stoney Point Wastewater Lagoons is a municipal wastewater treatment facility located in the community of Stoney Point, part of the town of Lakeshore in Essex County, Ontario, Canada. The plant serves a population of approximately 1,550 residents and operates under secondary treatment standards, which is typical for smaller communities in the region. The plant uses lagoon-based secondary treatment, a common and cost-effective method for small populations. As a facility in Ontario, it operates under the province's regulatory framework, which aligns with the Canada-wide standards for wastewater systems. The plant's discharge volume is 858 cubic meters per day, reflecting its small scale. The treated effluent from Stoney Point Wastewater Lagoons is discharged into the Lake St. Clair watershed, which ultimately drains into the Detroit River, Lake Erie, and the St. Lawrence River. Lake St. Clair is an ecologically important water body that supports diverse aquatic life and provides drinking water for millions. The plant's coastal location within 10 km of Lake St. Clair underscores the importance of effective treatment to protect water quality.

The plant discharges into the Lake St. Clair watershed, which connects to the Detroit River, Lake Erie, and the St. Lawrence River. Lake St. Clair is a shallow, productive lake that supports diverse fish populations and migratory birds. The plant's proximity to the lake (within 10 km) means its effluent can directly influence nearshore water quality, making secondary treatment essential for protecting aquatic ecosystems and recreational uses.