Lysander T Subdivs STP and Onsites - Town of Lysander, New York Wastewater Treatment

Lysander T Subdivs STP and Onsites is a municipal wastewater treatment facility located in the Town of Lysander, Onondaga County, New York. The plant serves a small population of 163 residents and is part of the region's decentralized wastewater infrastructure. As a secondary treatment plant, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant has a designed capacity of 378.54 thousand cubic meters per year and currently treats an annual volume of 64.35 thousand cubic meters. Under the US Clean Water Act, facilities of this scale are typically regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the New York State Department of Environmental Conservation. Secondary treatment is the minimum standard for municipal wastewater plants in the United States. The treated effluent is discharged to a local waterbody, likely a tributary of the Oswego River or directly to Lake Ontario via the Seneca River system. The plant's location within 50 km of Lake Ontario places it in a watershed that drains to the Great Lakes, a critical freshwater resource. Protecting downstream water quality is essential for aquatic ecosystems and drinking water supplies in the region.

The plant discharges into a local stream that flows into the Seneca River, which ultimately drains to Lake Ontario. Lake Ontario is the easternmost Great Lake and supports diverse fish populations, including lake trout and salmon, as well as migratory birds. The watershed is ecologically sensitive due to its role in the Great Lakes basin, and nutrient loading from wastewater can contribute to algal blooms and eutrophication. The plant's secondary treatment helps reduce but does not eliminate nutrient discharges.