Cleveland V STP Wastewater Treatment Plant, Town of Constantia, New York

Cleveland V STP is a municipal wastewater treatment facility located in the Village of Cleveland, within the Town of Constantia, Oswego County, New York. The plant serves a small population of 758 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal wastewater facilities. The plant's design capacity is 567.81 megaliters, with an actual discharge volume of 151.42 megaliters, indicating it operates well below capacity. As a secondary treatment plant, it uses biological processes to remove organic matter and suspended solids before discharge. The facility is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the New York State Department of Environmental Conservation. The treated effluent from Cleveland V STP likely discharges into a local waterway that flows into Oneida Lake, part of the Oswego River watershed, which ultimately drains into Lake Ontario. This region supports diverse aquatic life and is important for recreational fishing and water quality in the Great Lakes basin.

The plant's discharge enters a tributary of Oneida Lake, which flows via the Oneida River into the Oswego River and then into Lake Ontario, a major Great Lake. The watershed supports coldwater fisheries and migratory fish species. Protecting water quality here is critical for downstream ecosystems and drinking water sources.