ABINGDON OXON STW - Wastewater Treatment Plant in Vale of White Horse, Oxfordshire

ABINGDON OXON STW is a wastewater treatment plant located in Abingdon on Thames, within the Vale of White Horse district of Oxfordshire, England. It serves a population of around 38,900, classifying it as a medium-sized agglomeration under UK and EU regulatory frameworks. As a plant in the United Kingdom, it operates under the Urban Waste Water Treatment 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 plant's treatment processes and capacity are managed to meet these standards. The treated effluent is discharged into the River Thames catchment, which flows through Oxfordshire and eventually into the North Sea via the Thames Estuary. The plant plays a key role in protecting the River Thames and its downstream ecosystems from pollution, supporting aquatic life and recreational use of the river.

The plant discharges into the River Thames catchment, which drains through Oxfordshire and London to the Thames Estuary and the North Sea. The Thames supports diverse aquatic life, including fish species like salmon and eels, and is an important migratory corridor. The plant's treatment helps maintain water quality in this ecologically sensitive river system.