SELBY STW - Selby, North Yorkshire Wastewater Treatment Plant

SELBY STW is a municipal wastewater treatment plant located in Selby, North Yorkshire, England, serving a population equivalent of 23,096. The facility is situated near the Selby Swing Bridge on the River Ouse, a major watercourse in the region. As a medium-sized agglomeration, the plant plays a key role in managing wastewater from the town and surrounding areas. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), which remains implemented in UK law, treatment plants serving populations between 10,000 and 150,000 are required to provide secondary treatment as a minimum. The plant is expected to meet these standards to protect the receiving water environment. The designed capacity is 1.00 (likely in megalitres per day or similar units), indicating the plant's operational scale. The treated effluent is discharged into the River Ouse, which flows southeast through the Humber Estuary and into the North Sea. The Humber Estuary is a major ecological feature supporting diverse birdlife and fish species, including migratory salmonids. The plant's discharge contributes to the overall water quality management of this sensitive estuarine system.

SELBY STW discharges into the River Ouse, a major river in Yorkshire that flows into the Humber Estuary, a large tidal estuary on the east coast of England. The Humber Estuary is an ecologically important area that supports a wide range of bird species, fish, and invertebrates, and is a key migratory corridor for birds. The estuary ultimately drains into the North Sea. The plant's operations are subject to environmental regulations aimed at maintaining water quality in this sensitive downstream ecosystem.