Henley STW - Wastewater Treatment Plant in South Oxfordshire, England

Henley STW is a wastewater treatment plant located near Henley-on-Thames in South Oxfordshire, England. It serves a population of around 11,300 people, making it a medium-sized agglomeration under UK classifications. The plant is situated inland, away from the coast, and discharges into the local river system. As a UK wastewater facility, Henley STW operates under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive. The plant's capacity and discharge volume are not publicly reported, but it is expected to meet regulatory standards set by the Environment Agency. The treated effluent from Henley STW is discharged into the River Thames, which flows through Henley-on-Thames and continues southeast through London to the North Sea. The River Thames is a major waterway supporting diverse aquatic life and providing drinking water for millions. The plant plays a key role in protecting water quality in this ecologically important river system.

Henley STW discharges treated wastewater into the River Thames, which flows through the Chiltern Hills and eventually reaches the North Sea via the Thames Estuary. The Thames supports a rich ecosystem, including fish species such as salmon and eels, and is a vital migratory corridor for birds. Protecting water quality in this river is crucial for both ecological health and human use, including recreation and water supply.