N BERWICK WWTF - North Berwick, Maine Wastewater Treatment Plant

N BERWICK WWTF (Wastewater Treatment Facility) serves the community of North Berwick, Maine, located in York County. The plant treats wastewater for a population of approximately 1,500 residents, making it a small-scale municipal facility. It is operated by the North Berwick Sanitary District and is situated inland, more than 10 km from the coast. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The facility has a designed capacity of 870.64 thousand cubic meters per year and currently discharges 757.08 thousand cubic meters annually, indicating it operates below its design capacity. The treated effluent is discharged into a local water body that ultimately drains into the Great Works River, a tributary of the Piscataqua River, which flows into the Gulf of Maine. This watershed supports diverse aquatic life and is an important estuarine ecosystem. The plant's discharge is regulated under the National Pollutant Discharge Elimination System (NPDES) to protect water quality in the receiving waters.

The plant discharges into the Great Works River watershed, which flows into the Piscataqua River estuary and then into the Gulf of Maine. This coastal watershed supports diverse aquatic habitats, including spawning grounds for anadromous fish species. The region's estuarine environment is ecologically sensitive, and the plant's secondary treatment helps reduce nutrient and pollutant loads to protect downstream water quality.