Petrolia WPCP Wastewater Treatment Plant, Enniskillen, Ontario

Petrolia WPCP is a municipal wastewater treatment plant located in Enniskillen, Lambton County, Ontario, Canada. Serving a population of approximately 6,341, the plant is part of the province's wastewater infrastructure for small to medium-sized communities. As a Canadian facility, Petrolia WPCP operates under Ontario's Environmental Protection Act and the provincial Water Resources Act, which set effluent standards for municipal wastewater. For plants serving populations under 10,000, typical treatment includes secondary processes to meet regulatory requirements for organic matter and suspended solids removal. The plant discharges treated effluent into the local watershed, which ultimately drains into Lake St. Clair and the Great Lakes system. This region supports diverse aquatic life and is important for recreational and ecological purposes, requiring careful management of nutrient and contaminant loads.

The plant's treated effluent enters the local drainage network, flowing into the Sydenham River and eventually Lake St. Clair, a connecting channel of the Great Lakes. This watershed supports a variety of fish species and migratory birds, and its health is critical for maintaining water quality in the broader Lake Erie basin.