1,887 plants indexed. Showing 480 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.
Thorpeness STW is a secondary treatment plant in East Suffolk, England, serving around 2,029 people. It discharges treated wastewater near the North Sea coast, operating under UK regulations.
Southminster STW is a secondary wastewater treatment plant serving 3,620 people in Maldon, Essex, England. It discharges 805.94 cubic meters per day and is located within 10 km of the coast.
MANBY STW is a secondary wastewater treatment plant in East Lindsey, England, serving a population of 2,113. It discharges treated effluent near the Lincolnshire coast, contributing to local water quality management.
Latchingdon STW is a secondary treatment plant serving 2,468 people in Maldon, Essex, England. It discharges 549.46 m³/day of treated wastewater with a designed capacity of 3,520 m³/day.
Laceby STW is a secondary treatment plant serving 3,202 people in Laceby, England. It discharges 712.88 m³/day of treated wastewater, with a designed capacity of 4,672 m³/day.
KEELBY STW is a secondary wastewater treatment plant in West Lindsey, Lincolnshire, England, serving approximately 2,097 people. It discharges treated effluent near the Humber Estuary, supporting local water quality standards.
Holton le Clay STW is a secondary treatment plant in East Lindsey, England, serving 3,440 people. It discharges 765.86 m³/day of treated wastewater and has a designed capacity of 4,950 m³/day.
Great Wenham STW is a secondary treatment plant serving 2,798 people in Babergh, Suffolk, England. It discharges treated wastewater near the coast, operating under UK regulations.
Great Totham STW is a secondary treatment plant serving 4,067 people in Maldon, Essex, England. It discharges treated wastewater near the coast, operating under UK environmental regulations.
East Bergholt STW is a secondary treatment plant in Babergh, Suffolk, England, serving 2,305 people. It discharges 513.17 m³/day of treated wastewater and is located within 10 km of the coast.
DEDHAM STW is a secondary wastewater treatment plant in Colchester, England, serving 2,081 people. It discharges 463.30 m³/day and has a designed capacity of 2,650 m³/day.
Copford STW is a secondary wastewater treatment plant serving 4,243 people in Colchester, Essex, England. It discharges 944.64 m³/day and is located within 10 km of the coast.
CLEY NEXT THE SEA STW is a secondary wastewater treatment plant in North Norfolk, England, serving approximately 2,894 people. It discharges 644.31 cubic meters of treated effluent daily, with a designed capacity of 3,293 cubic meters.
BRANTHAM STW is a secondary treatment plant in Babergh, Suffolk, England, serving approximately 3,188 people. It discharges treated wastewater near the coast, with a designed capacity of 3,622 m³/day.
ALFORD STW is a secondary treatment plant in East Lindsey, England, serving 3,648 people. It discharges 812.17 m³/day of treated wastewater and is located within 10 km of the coast.
ACLE STW is a secondary treatment plant serving 3,713 people in Broadland, Norfolk, England. It discharges 826.64 m³/day of treated wastewater into local waterways near the North Sea coast.
North Down and Ards wastewater treatment plant serves Groomsport, Northern Ireland, treating wastewater for approximately 71,433 people. The facility operates under UK regulations and discharges into the Irish Sea.
North Coast wastewater treatment plant serves Portstewart, Northern Ireland, UK, with a population equivalent of 76,357. The facility is located near the coast and operates under UK and EU regulatory frameworks.
Warrenpoint wastewater treatment plant serves the town of Warrenpoint in Northern Ireland, United Kingdom. It is located near the coast and treats wastewater for a population of approximately 14,707.
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.
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 4 plants linked to this operator.
Among the indexed plants, MANBY STW has the highest designed capacity at 5,456 m3/day.