White Waltham B STW - Wastewater Treatment Plant in White Waltham, Berkshire, UK

White Waltham B STW is a wastewater treatment plant located in White Waltham, a village in the Royal Borough of Windsor and Maidenhead, Berkshire, England. The facility serves a population of around 5,560 residents, placing it in the small-to-medium agglomeration category under UK regulations. It is situated inland, approximately 50 km from the coast, and its operations are part of the broader Thames Water region. As a UK wastewater treatment plant serving a population of 5,560, White Waltham B STW operates under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, secondary treatment is typically required unless the receiving waters are designated as sensitive areas, which may necessitate more advanced treatment. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with environmental permits issued by the Environment Agency. The treated effluent from White Waltham B STW is discharged into local watercourses that ultimately drain into the River Thames, one of the UK's major rivers. The Thames basin supports diverse aquatic life and is an important ecological corridor. The plant's operations help protect water quality in the Thames catchment, contributing to the health of downstream ecosystems, including the Thames Estuary and the North Sea.

White Waltham B STW discharges into local streams that flow into the River Thames, which drains through London into the Thames Estuary and the North Sea. The Thames basin is ecologically significant, supporting species such as Atlantic salmon, European eel, and various waterfowl. The plant's treatment helps maintain water quality in this sensitive catchment, which is subject to nutrient management and conservation efforts.