MADELEY STW Wastewater Treatment Plant, Crewe, Staffordshire

MADELEY STW is a wastewater treatment works located in Madeley, near Crewe, Staffordshire, England. It serves a population of approximately 5,231 people, classifying it as a small agglomeration under UK and EU regulatory frameworks. The plant is situated inland, away from coastal areas, and its treated effluent is discharged into the local river system. As a small-scale treatment facility in the United Kingdom, MADELEY STW operates under the Urban Waste Water Treatment Regulations, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, secondary treatment is typically required unless the receiving waters are designated as sensitive areas, which would mandate more advanced treatment. It is expected to meet the regulatory standards for biological oxygen demand and suspended solids. The treated wastewater from MADELEY STW ultimately enters the River Weaver catchment, which flows through Cheshire and into the River Mersey estuary. This river system supports diverse aquatic life and is important for local agriculture and recreation. The plant's operations help protect water quality in the region, contributing to the ecological health of the Weaver and downstream environments.

MADELEY STW discharges into the River Weaver catchment, a tributary of the River Mersey. The Weaver flows through rural and agricultural landscapes in Cheshire before joining the Mersey estuary, which drains into the Irish Sea. The river supports fish populations and other aquatic species, and its water quality is influenced by both agricultural runoff and treated wastewater. The plant's discharge contributes to the overall nutrient load in the catchment, making effective treatment important for maintaining ecological balance.