Overview
Dunham Massey STW serves approximately 6,900 people in Trafford, England. The plant operates under UK wastewater regulations, discharging treated effluent into local waterways.
Dunham Massey Sewage Treatment Works (STW) is a municipal wastewater facility located in Dunham Massey, Trafford, Greater Manchester, England. It serves a population of around 6,900 residents, classifying it as a small to medium agglomeration under UK and EU regulatory frameworks. The plant is situated inland, approximately 50 km from the coast, and its operations are managed as part of the region's wastewater infrastructure. As a UK wastewater treatment plant, Dunham Massey STW is subject to the Urban Waste Water Treatment (England and Wales) Regulations 1994, which transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, secondary treatment is typically required. The plant's designed capacity is 1.00 (likely in megaliters per day or similar units), indicating its scale. The facility is expected to meet regulatory standards for effluent quality before discharge. The treated wastewater from Dunham Massey STW is discharged into local watercourses that ultimately drain into the River Mersey basin. The Mersey flows into the Irish Sea via the Mersey Estuary, an ecologically important area that supports diverse aquatic life and migratory bird populations. The plant plays a key role in protecting water quality in this catchment, reducing nutrient and pollutant loads to safeguard downstream habitats.
Environmental context
Dunham Massey STW discharges into the River Mersey catchment, which flows through Greater Manchester and into the Mersey Estuary before reaching the Irish Sea. The estuary is a vital ecosystem supporting fish, invertebrates, and bird species, and is designated as a Site of Special Scientific Interest (SSSI) for its ecological importance. The plant's effluent contributes to the overall water quality in this sensitive coastal environment, where nutrient management is critical to prevent eutrophication.
Frequently asked questions
Dunham Massey STW is located on Woodhouse Lane in Dunham Massey, Trafford, Greater Manchester, England, with the postcode WA14 5SF.
The plant serves approximately 6,900 residents, classifying it as a small to medium agglomeration under UK wastewater regulations.
The treated effluent is discharged into local watercourses within the River Mersey catchment, which flows into the Mersey Estuary and then the Irish Sea.
The plant operates under the Urban Waste Water Treatment (England and Wales) Regulations 1994, which implement the EU Urban Waste Water Treatment Directive (91/271/EEC). For its population size, secondary treatment is typically required.
The Mersey Estuary is an ecologically sensitive area supporting diverse wildlife, including fish and migratory birds. The plant helps maintain water quality in this important coastal ecosystem.
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