Glen Cove C STP Wastewater Treatment Plant, City of Glen Cove, New York

Glen Cove C STP is a municipal wastewater treatment facility serving the City of Glen Cove in Nassau County, New York. The plant handles wastewater from a population of around 29,500, placing it in the medium-agglomeration category under US regulatory frameworks. 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. For plants of this scale, secondary treatment is typically required, with additional nutrient removal in sensitive watersheds. The treated effluent is discharged into the Glen Cove Creek, which flows into Hempstead Harbor and ultimately Long Island Sound. This water body supports diverse aquatic life and is an important estuarine habitat. The plant's proximity to the coast underscores the need for effective treatment to protect downstream ecosystems.

The plant discharges into Glen Cove Creek, a tributary of Hempstead Harbor on the north shore of Long Island. Hempstead Harbor opens into Long Island Sound, a major estuary that supports fisheries, migratory birds, and marine habitats. The watershed is ecologically sensitive due to urban runoff and nutrient loading, making effective wastewater treatment critical for water quality.