GLEMSFORD STW - Secondary Wastewater Treatment in Babergh, Suffolk

GLEMSFORD STW is a municipal wastewater treatment plant located in Glemsford, Babergh, Suffolk, England. The facility serves a population of approximately 3,765 and operates under the regulatory framework of the UK Environment Agency, which enforces the Urban Waste Water Treatment Directive (UWWTD) for agglomerations of this size. The plant provides secondary treatment, a standard requirement under the UWWTD for inland freshwater discharges. With a designed capacity of 3,892 m³/day and an average daily flow of 838.22 m³/day, the plant operates well below its capacity, indicating headroom for future growth or seasonal variations. The treated effluent is discharged into local rivers that drain into the North Sea via the Suffolk river system. The plant plays a key role in protecting the water quality of the region's chalk streams and estuaries, which support diverse aquatic life and are important for conservation.

The plant discharges into the River Stour or its tributaries, which flow through the Dedham Vale Area of Outstanding Natural Beauty before reaching the North Sea at Harwich. The Suffolk river system supports sensitive habitats for species such as the water vole and brown trout. The secondary treatment provided helps reduce nutrient loads, mitigating eutrophication risks in the downstream estuary.