Great Wenham STW: Secondary Wastewater Treatment in Babergh, Suffolk

Great Wenham STW is a wastewater treatment plant located in Babergh, Suffolk, England, serving a population of approximately 2,798. The plant is situated near the coast in the East of England, an area with a mix of rural and agricultural land use. It provides secondary treatment, which is the standard level required by the EU Urban Waste Water Treatment Directive for smaller agglomerations. The plant has a designed capacity of 3,875 cubic meters per day and discharges a volume of about 623 cubic meters per day. As a UK facility, it operates under the Water Industry Act 1991 and is regulated by the Environment Agency, which issues discharge permits to protect water quality. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local watercourses that flow toward the North Sea. The coastal location means the discharge may influence estuarine and marine environments. The plant plays a role in protecting the Suffolk coast and estuaries, which support diverse aquatic life and are important for migratory birds.

The plant discharges into local watercourses that drain into the North Sea via the Suffolk coast. The area includes estuaries and coastal habitats that support diverse aquatic life, including fish and bird species. The proximity to the coast means that treated effluent can affect sensitive marine ecosystems, making effective treatment important for maintaining water quality and ecological balance.