Bottisham STW - Secondary Wastewater Treatment in East Cambridgeshire, England

Bottisham STW (Sewage Treatment Works) is a municipal wastewater facility located in Bottisham, East Cambridgeshire, Cambridgeshire, England. It serves a population of around 3,912, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland freshwater discharges from agglomerations of this size. The designed capacity matches the population served, indicating the plant is sized appropriately for its catchment. Treated effluent from Bottisham STW is discharged into local watercourses that drain into the River Cam, a tributary of the Great Ouse, which flows into The Wash and the North Sea. The plant plays a key role in protecting these water bodies from pollution and supporting aquatic life.

Bottisham STW discharges into local streams that feed the River Cam, part of the Great Ouse catchment. The River Cam flows through Cambridge and into the Great Ouse, which empties into The Wash, a large estuary and important ecological area. The Wash supports diverse bird populations and marine life, making nutrient management and treatment quality critical for downstream environmental health.