Overview
LEIGH STW is a wastewater treatment plant serving approximately 80,000 people in Leigh, Greater Manchester, England. It operates under the UK's regulatory framework for wastewater treatment.
LEIGH STW is a wastewater treatment plant located in Leigh, Greater Manchester, England, serving a population of around 80,242. The plant is situated inland, more than 50 km from the coast, and plays a key role in managing municipal wastewater for the local community. As a plant serving a medium-to-large agglomeration, LEIGH STW is subject to the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum for populations over 15,000. The plant's designed capacity is 1.00 (likely in megaliters per day or similar units), indicating its scale. The treated effluent from LEIGH STW is discharged into local watercourses that ultimately drain into the River Mersey basin, flowing into the Irish Sea. This downstream environment supports diverse aquatic life and is an important ecological corridor in northwest England.
Environmental context
LEIGH STW discharges into the River Mersey catchment, which flows into the Mersey Estuary and then the Irish Sea. The Mersey basin supports a variety of fish species and migratory birds, and the estuary is ecologically sensitive due to its tidal flats and salt marshes. The plant's treatment performance is critical to maintaining water quality in this important downstream environment.
Frequently asked questions
LEIGH STW is located in Leigh, Greater Manchester, England, at Denebrook Court, Leigh Business Park, Bedford, Leigh, Wigan, WN7 3FZ.
LEIGH STW serves approximately 80,242 people, classifying it as a medium-to-large agglomeration under UK wastewater regulations.
The treated effluent from LEIGH STW is discharged into local watercourses that flow into the River Mersey catchment, ultimately reaching the Irish Sea.
LEIGH STW operates under the UK's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for plants serving over 15,000 people.
For a plant serving around 80,000 people, the UK typically requires secondary treatment as a minimum, with tertiary treatment in sensitive areas to meet environmental standards.
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