ALDERLEY EDGE STW - Wastewater Treatment Plant in Alderley Edge, Cheshire East

ALDERLEY EDGE STW is a wastewater treatment plant located on Carr Lane in Alderley Edge, Cheshire East, England. It serves a population of around 15,000 residents in this suburban village near Manchester. The plant is part of the United Kingdom's wastewater infrastructure managed under the Water Industry Act 1991. As a medium-sized agglomeration, the plant is expected to provide secondary treatment under the EU Urban Waste Water Treatment Directive (91/271/EEC), which was transposed into UK law. The UK regulatory framework requires compliance with discharge permits issued by the Environment Agency, ensuring treated effluent meets quality standards before release. The plant discharges into local watercourses that drain into the River Bollin, a tributary of the River Mersey. The Mersey flows into the Irish Sea via the Mersey Estuary, an ecologically important area supporting diverse bird life and fish populations. The plant plays a key role in protecting water quality in this catchment.

ALDERLEY EDGE STW discharges into the River Bollin catchment, which flows into the River Mersey and ultimately the Irish Sea. The Mersey Estuary is a vital habitat for migratory birds and supports a range of aquatic species. The plant's treatment processes help maintain water quality in this sensitive downstream environment, reducing nutrient and pollutant loads that could otherwise impact estuarine ecosystems.