HORNSEA STW Wastewater Treatment Plant, Hornsea, East Riding of Yorkshire

HORNSEA STW is a wastewater treatment plant located in Hornsea, East Riding of Yorkshire, England. It serves a population of approximately 8,738 residents, classifying it as a small to medium agglomeration under UK regulatory frameworks. The plant is situated near the North Sea coast, highlighting its role in protecting coastal water quality. As a UK wastewater facility, HORNSEA STW operates under the Urban Waste Water Treatment (England and Wales) Regulations, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, secondary treatment is typically required, with additional nutrient removal if discharging into sensitive areas. The treated effluent from HORNSEA STW is discharged into the local environment, ultimately reaching the North Sea. This coastal discharge necessitates careful management to protect marine ecosystems and bathing waters, which are important for tourism and local biodiversity. The plant contributes to maintaining water quality standards in the region, supporting both environmental health and recreational use of nearby beaches.

HORNSEA STW discharges treated wastewater into the local drainage network, which flows into the North Sea via the Holderness coast. This coastal area is ecologically sensitive, supporting diverse marine life and important bird habitats. The plant's operations help protect the water quality of nearby bathing beaches and the broader marine environment, which is subject to UK and EU water quality standards.