Ontario T WWTP and Onsites - Town of Ontario, New York Wastewater Treatment Plant

Ontario T WWTP and Onsites is a municipal wastewater treatment facility located in the Town of Ontario, Wayne County, New York, United States. The plant serves a population of approximately 5,000 residents and has a designed capacity of 1.00 million gallons per day. It is situated near the southern shore of Lake Ontario, one of the Great Lakes. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation. The plant's treated effluent ultimately reaches Lake Ontario, which drains into the St. Lawrence River and then the Atlantic Ocean. Lake Ontario supports diverse aquatic life and provides drinking water for millions. The plant plays a key role in protecting this vital freshwater resource from nutrient pollution and pathogens.

The plant discharges into the Lake Ontario basin, part of the Great Lakes system that flows via the St. Lawrence River to the Atlantic Ocean. Lake Ontario is a critical freshwater resource supporting fisheries, recreation, and municipal water supplies. The watershed is sensitive to nutrient loading, which can cause algal blooms, making effective wastewater treatment essential for ecological health.