1,887 plants indexed. Showing 1,857 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.
ARLEY STW is a secondary treatment plant in North Warwickshire, England, serving 3,606 people. It discharges 802.82 m³/day of treated wastewater, with a designed capacity of 7,000 m³/day.
ALREWAS STW is a secondary wastewater treatment plant in Lichfield, England, serving approximately 3,800 people with a designed capacity of 4,500 m³/day. It discharges treated effluent into local watercourses within the Trent River basin.
WITTERING STW is a secondary wastewater treatment plant serving Thornhaugh, England. It treats wastewater for a population of 4,322 with a designed capacity of 4,322 population equivalents.
South Killingholme STW is a secondary treatment plant serving 2,133 people in North Killingholme, England. It discharges 474.88 m³/day of treated wastewater near the Humber Estuary coast.
FORNCETT END STW is a secondary treatment plant in South Norfolk, England, serving approximately 2,760 people. It discharges treated wastewater into local watercourses within the Norfolk region.
COWBIT STW is a secondary wastewater treatment plant in South Holland, England, serving a population of 2,244. It discharges 499.59 m³/day of treated effluent, with a designed capacity of 3,300 m³/day.
CRANWELL STW is a secondary treatment plant in North Kesteven, England, serving approximately 3,600 people. It discharges 800.82 cubic meters of treated wastewater daily.
Rendlesham Park STW F_E is a secondary treatment plant in East Suffolk, England, serving a population of 2,298. It discharges 511.61 m³/day of treated wastewater into local watercourses.
LAVENHAM STW F_E is a secondary treatment plant in Babergh, Suffolk, England, serving 2,125 people. It discharges 473.10 m³/day of treated wastewater into the local water environment.
Wyton STW STW is a secondary wastewater treatment plant in Huntingdonshire, England, serving a population of 2,094. It discharges 466.20 m³/day of treated effluent and has a designed capacity of 4,000 m³/day.
Worlingham STW is a secondary treatment plant serving approximately 3,062 people in East Suffolk, England. It discharges treated wastewater into local watercourses, contributing to the region's water quality management.
Witchford STW is a secondary treatment plant serving 2,092 people in East Cambridgeshire, England. It discharges 465.75 cubic meters of treated wastewater daily.
Wickham Market STW is a secondary treatment plant serving 2,422 people in East Suffolk, England. It discharges 539.22 m³/day of treated wastewater into local watercourses.
White Notley STW is a secondary wastewater treatment plant serving Braintree, England, with a population equivalent of 4,197. It discharges 934.40 m³/day and is located within 10 km of the coast.
WEYBREAD STW is a secondary treatment plant serving 2,200 people in Mid Suffolk, England. It discharges 489.80 cubic meters of treated wastewater daily, with a designed capacity of 2,615 cubic meters.
WETHERSFIELD STW is a secondary treatment plant serving 2,570 people in Braintree, Essex, England. It discharges 572.17 m³/day of treated wastewater, with a designed capacity of 3,076 m³/day.
West Stow STW is a secondary treatment plant serving 2,548 people in West Suffolk, England. It discharges 567.27 m³/day of treated wastewater into the local water environment.
WEEDON STW is a secondary treatment plant in Church Stowe, England, serving approximately 3,018 people. It discharges 671.91 cubic meters of treated wastewater daily.
Watlington STW is a secondary treatment plant in King's Lynn and West Norfolk, England, serving 4,410 people. It discharges treated wastewater into the local water environment, supporting the region's water quality.
Washingborough STW is a secondary treatment plant in North Kesteven, England, serving approximately 3,421 people. It discharges treated wastewater into the local water environment.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ARLEY STW has the highest designed capacity at 7,000 m3/day.