1,887 plants indexed. Showing 1,266 matching current filters.
The UK's wastewater is treated by 11 regional water companies including Thames Water, Severn Trent, Anglian Water, Welsh Water and Scottish Water, under Ofwat regulation. UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom with a combined designed capacity of 2,480,261 m³/day. The largest plant on file is ROTHERWAS STW FIR TREE LANE HFD STW, treating 76,862 m³/day.
The UK's wastewater is treated by 11 regional water companies including Thames Water, Severn Trent, Anglian Water, Welsh Water and Scottish Water, under Ofwat regulation.
UtilityRadar's directory currently lists 1,887 wastewater treatment plants across United Kingdom. Together these plants represent a combined designed capacity of approximately 2,480,261 m³/day.
By treatment level, the directory contains 598 secondary, 20 advanced, 2 primary-treatment plants. Secondary treatment (typically activated sludge with biological nutrient removal) is the most common standard.
The largest plant indexed for United Kingdom is ROTHERWAS STW FIR TREE LANE HFD STW, with a designed capacity of 76,862 m³/day.
Plant records are aggregated from publicly available regulatory data (US EPA ECHO, EU UWWTD reporting, national water authority publications), augmented by direct operator information and verified via Google Maps coordinates. Each record includes location, treatment level, capacity where known, operator and operational status. To browse plants by treatment level worldwide, see our secondary and advanced filter views, or read our guide to how sewage treatment works.
Omagh wastewater treatment plant serves Newtownstewart, Northern Ireland, treating wastewater for approximately 38,720 people. The facility operates under UK and EU regulatory frameworks for wastewater management.
Newtownbreda wastewater treatment plant serves approximately 40,000 people in Belfast, Northern Ireland. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with environmental standards for inland discharge.
Ballyrickard wastewater treatment plant serves Newtownards, Northern Ireland, UK. It treats wastewater for approximately 29,883 people under the EU Urban Waste Water Treatment Directive.
Whitehouse Newtownabbey wastewater treatment plant serves approximately 88,000 people in Newtownabbey, Northern Ireland. It is located near the coast and operates under UK and EU wastewater regulations.
Newry wastewater treatment plant serves approximately 58,000 people in Newry, Northern Ireland. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Newcastle wastewater treatment plant serves 16,263 people in Newcastle, Northern Ireland. Located on the coast, it operates under UK regulations and discharges into the Irish Sea.
Moira wastewater treatment plant serves the town of Moira in Northern Ireland, United Kingdom. It provides essential sanitation for approximately 5,085 residents under the EU Urban Waste Water Treatment Directive.
Maghera wastewater treatment plant serves the town of Maghera in Northern Ireland, United Kingdom. It operates under the EU Urban Waste Water Treatment Directive, which governs treatment standards for agglomerations of this scale.
Culmore wastewater treatment plant serves approximately 133,823 people in Culmore, Northern Ireland. It operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
Lisnaskea wastewater treatment plant serves approximately 6,400 people in County Fermanagh, Northern Ireland. It discharges into the local water environment under UK regulations.
New Holland wastewater treatment plant serves Lisburn, Northern Ireland, treating wastewater for approximately 67,199 people. It operates under the UK's regulatory framework for wastewater management.
Limavady wastewater treatment plant serves approximately 16,194 people in County Londonderry, Northern Ireland. It is located near the coast and operates under UK and EU wastewater regulations.
Larne wastewater treatment plant serves the town of Larne in Northern Ireland, United Kingdom. It treats wastewater from a population of approximately 28,116 and discharges into the Irish Sea.
Killyleagh wastewater treatment plant serves approximately 8,000 people in County Down, Northern Ireland. The facility discharges treated effluent into the Irish Sea via local watercourses.
Kilkeel wastewater treatment plant serves approximately 10,587 people in Kilkeel, Northern Ireland. The facility operates under UK regulations and discharges into local waterways near the Irish Sea coast.
Keady wastewater treatment plant serves the town of Keady in County Armagh, Northern Ireland. It operates under UK regulations and discharges treated effluent into local watercourses.
Dunmurry wastewater treatment plant serves approximately 53,605 people in the Belfast area of Northern Ireland, United Kingdom. The facility is located inland and operates under UK and EU regulatory frameworks.
Dungiven wastewater treatment plant serves approximately 4,759 people in County Londonderry, Northern Ireland. The facility operates under UK regulations and discharges into local waterways.
Dromore wastewater treatment plant serves Gamblestown, Northern Ireland, UK. It serves a population of 7,355 and has a designed capacity of 1.00 (units unspecified).
Downpatrick wastewater treatment plant serves approximately 17,372 people in Downpatrick, Northern Ireland. The facility operates under UK and EU wastewater regulations, discharging treated effluent into local watercourses.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the plants on this page, the most-referenced operator is NI Water. UtilityRadar's records show 20 plants linked to this operator.
Among the indexed plants, Omagh has the highest designed capacity at 1 m3/day.