East Shefford East Shefford B STW - Weston, England Wastewater Treatment Plant

East Shefford East Shefford B STW is a wastewater treatment plant located near Weston in West Berkshire, England. It serves a population of approximately 5,170, classifying it as a small to medium agglomeration under UK regulatory frameworks. The plant is situated inland, away from coastal areas, and its operations are part of the broader Thames River Basin District. As a UK wastewater facility, this plant is subject to the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive. It is expected to meet the standards set by the Environment Agency. The treated effluent from the plant is discharged into local watercourses that eventually drain into the River Lambourn, a chalk stream known for its ecological sensitivity. The River Lambourn is a tributary of the River Kennet, which flows into the River Thames and ultimately the North Sea. The plant plays a role in protecting the water quality of these important river systems, supporting aquatic life and downstream habitats.

The plant discharges into the River Lambourn, a classic chalk stream renowned for its clear waters and diverse aquatic ecosystems. The Lambourn flows into the River Kennet, a Site of Special Scientific Interest (SSSI) for its rich biodiversity, before joining the River Thames. The Thames then drains into the North Sea via the Thames Estuary. The plant's operations help maintain water quality in this sensitive river network, which supports species such as brown trout, grayling, and various invertebrates.