WEM STW Wastewater Treatment Plant, Wem, Shropshire, England

WEM STW is a wastewater treatment plant located on Orchard Way in Wem, a market town in Shropshire, England. The facility serves a population of approximately 5,782 residents, classifying it as a small to medium agglomeration under UK wastewater regulations. As a plant in England, WEM STW operates under the Water Industry Act 1991 and the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). The treated effluent from WEM STW is discharged into local watercourses that ultimately drain into the River Severn catchment, one of the UK's major river systems. The Severn flows into the Bristol Channel and the Atlantic Ocean, supporting diverse aquatic habitats and providing water resources for communities downstream.

WEM STW discharges into the River Severn catchment, which flows through Shropshire and into the Bristol Channel. The Severn estuary is ecologically important, supporting migratory fish species such as salmon and eels, as well as wading birds. The plant's location inland, over 50 km from the coast, reduces direct marine impact, but its effluent contributes to the overall water quality of the Severn basin.