HUNMANBY STW - Hunmanby, North Yorkshire Wastewater Treatment Plant

HUNMANBY STW is a wastewater treatment plant located in Hunmanby, North Yorkshire, England. It serves a population of approximately 2,628 people, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant is situated near the coast, within 10 km of the North Sea. The plant provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges to coastal waters. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 2,714 cubic meters per day and currently discharges an average of 585.08 cubic meters per day, indicating it operates well below its capacity. The treated effluent is discharged into the local environment, ultimately reaching the North Sea. The coastal location means the discharge is subject to stringent regulations to protect marine ecosystems. The plant plays a key role in maintaining water quality in the region, supporting both environmental health and local communities.

The plant discharges treated wastewater into the local catchment, which drains into the North Sea via small coastal streams. The North Sea is a productive marine ecosystem supporting diverse fish stocks, seabird colonies, and benthic habitats. As a coastal discharge, the plant must comply with strict nutrient and pathogen limits to prevent eutrophication and protect bathing waters along the Yorkshire coast.