Earlton Lagoon Wastewater Treatment Plant, Armstrong Township, Ontario

Earlton Lagoon is a wastewater treatment facility located on Church Road in Armstrong Township, within the Timiskaming District of Northeastern Ontario, Canada. The plant serves a small community of approximately 1,033 residents, providing secondary treatment to manage municipal wastewater. As a secondary treatment plant, Earlton Lagoon employs biological processes to reduce organic matter and suspended solids, meeting the standard treatment requirements for small agglomerations in Ontario. The plant operates under Ontario's regulatory framework, which includes the Ontario Water Resources Act and the Environmental Protection Act, ensuring effluent quality standards are maintained. The treated wastewater from Earlton Lagoon is discharged into the local watershed, which ultimately drains into the Ottawa River basin and then to the St. Lawrence River. This downstream environment supports diverse aquatic life and is part of a larger ecosystem that includes the Great Lakes-St. Lawrence system, highlighting the importance of effective wastewater management in protecting water quality.

Earlton Lagoon discharges into the local watershed within the Ottawa River basin, which flows into the St. Lawrence River and eventually the Atlantic Ocean. The receiving waters support a variety of fish species and aquatic habitats, making proper treatment essential for maintaining ecological balance in this northern Ontario region.