1,887 plants indexed. Showing 786 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.
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.
KEDINGTON STW is a secondary wastewater treatment plant in West Suffolk, England, serving approximately 2,042 people. It discharges treated effluent into local watercourses, supporting the region's water quality management.
HORBLING STW is a secondary treatment plant in South Kesteven, England, serving approximately 2,936 people. It discharges 653.66 cubic meters of treated wastewater daily, with a designed capacity of 5,600 cubic meters.
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.
HEMPNALL STW is a secondary treatment plant serving 2,349 people in South Norfolk, England. It discharges treated wastewater into local watercourses, contributing to the region's water quality management.
Heckington STW is a secondary treatment plant serving 4,131 people in North Kesteven, Lincolnshire, England. It discharges treated wastewater into the local water environment, operating under UK regulations.
HAUGHLEY STW is a secondary treatment plant serving 2,251 people in Mid Suffolk, England. It discharges 501.15 m³/day of treated wastewater into local watercourses.
GRIMSTON STW is a secondary treatment plant serving 3,890 people in King's Lynn and West Norfolk, England. It discharges 866.05 cubic meters of treated wastewater daily.
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 Waldingfield STW is a secondary treatment plant in Babergh, Suffolk, England, serving approximately 2,153 people. It discharges 479.33 m³/day of treated wastewater into local watercourses.
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.
GREAT EASTON STW is a secondary treatment plant in Uttlesford, England, serving 3,366 people. It discharges 749.39 m³/day of treated wastewater, operating under UK regulations.
Gosberton STW is a secondary wastewater treatment plant serving 2,490 people in South Holland, Lincolnshire, England. It discharges treated effluent into local watercourses within the Greater Lincolnshire region.
GLEMSFORD STW is a secondary wastewater treatment plant serving 3,765 people in Babergh, Suffolk, England. It discharges 838.22 m³/day of treated effluent into local watercourses.
Framlingham STW is a secondary treatment plant serving approximately 3,991 people in East Suffolk, England. It discharges 888.54 cubic meters of treated wastewater daily.
EIGH ASH GREEN STW is a secondary treatment plant serving Colchester, England. It discharges treated wastewater into local watercourses, supporting the region's water quality management.
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.
Earls Colne STW is a secondary treatment plant serving 4,042 people in Braintree, Essex, England. It discharges treated wastewater into the local river system within the Colne catchment.
DONINGTON STW is a secondary wastewater treatment plant in South Holland, England, serving approximately 2,607 people. It discharges treated effluent into the local water environment under UK regulations.
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 Anglian Water. UtilityRadar's records show 1 plant linked to this operator.
Among the indexed plants, HORBLING STW has the highest designed capacity at 5,600 m3/day.