SUTTON BENGER STW - Wastewater Treatment Plant in Christian Malford, Wiltshire

SUTTON BENGER STW is a wastewater treatment plant located in Christian Malford, Wiltshire, England. It serves a population of approximately 5,000 people, placing it within the small-to-medium agglomeration category under UK and EU regulatory frameworks. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges to freshwater and estuaries from agglomerations of this size. The regulatory framework ensures compliance with national standards for effluent quality. The treated effluent is discharged into local watercourses that ultimately drain into the River Avon (Bristol) catchment, flowing into the Severn Estuary and the Bristol Channel. This region supports diverse aquatic life and is important for migratory fish species.

The plant discharges into the River Avon (Bristol) catchment, which flows through Wiltshire and into the Severn Estuary, a major ecological feature supporting diverse bird populations and fish species. The estuary is a key migratory corridor for Atlantic salmon and eels. The local watershed includes agricultural and rural areas, requiring careful nutrient management to protect downstream water quality.