Alliston WWTP - Wastewater Treatment Plant in Alliston, Ontario, Canada

Alliston WWTP is a municipal wastewater treatment facility located at 470 Victoria Street East in Alliston, part of New Tecumseth, Simcoe County, Ontario, Canada. The plant serves a population of about 9,038 residents, placing it in the small to medium agglomeration category. As a Canadian facility, the plant operates under provincial regulations administered by the Ontario Ministry of the Environment, Conservation and Parks. Treatment standards for plants of this scale typically include secondary treatment to meet effluent quality objectives for the protection of receiving waters. The plant discharges treated wastewater into the local watershed, which ultimately drains into Lake Simcoe via the Nottawasaga River system. Lake Simcoe is a large freshwater lake that supports diverse aquatic life and is an important recreational and ecological resource in central Ontario.

The treated effluent from Alliston WWTP enters the Nottawasaga River watershed, which flows into Nottawasaga Bay on Lake Huron. Lake Huron is one of the Great Lakes, providing drinking water and habitat for numerous fish species. The watershed supports wetlands and migratory birds, making effluent quality management critical for ecosystem health.