CLIFTON STW - Henlow, England Wastewater Treatment Plant

CLIFTON STW is a wastewater treatment plant located in Henlow, Central Bedfordshire, England. It serves a population of around 16,153, classifying it as a medium-sized agglomeration under UK regulatory frameworks. The plant is situated inland, away from coastal areas, and its treated effluent is discharged into local watercourses. As a plant serving over 10,000 people, CLIFTON STW is required to meet secondary treatment standards under the Urban Waste Water Treatment Directive (91/271/EEC), which is transposed into UK law. This ensures that the wastewater undergoes biological treatment to reduce organic matter and suspended solids before discharge. The regulatory framework mandates appropriate treatment for this population tier. The treated water from CLIFTON STW ultimately drains into the River Ivel, a tributary of the River Great Ouse, which flows into the Wash estuary on the North Sea. This catchment supports diverse aquatic life and is important for regional biodiversity. The plant's operation helps protect the water quality of these downstream environments.

CLIFTON STW discharges into the River Ivel, which flows into the River Great Ouse and eventually reaches the Wash estuary, a large embayment on the North Sea. The Wash supports important bird populations and marine habitats. The plant's treatment helps maintain water quality in this ecologically sensitive catchment, which is used for recreation and supports fisheries.