1,887 plants indexed. Showing 476 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.
COLYTON and COLYFORD STW is a secondary treatment plant in East Devon, England, serving 2,964 people. It discharges 659.89 m³/day of treated wastewater near the coast.
Carnon Downs STW is a secondary treatment plant serving Devoran, Cornwall, England. It discharges treated wastewater near the coast, with a designed capacity of 4186.00 and an average flow of 675.03.
CALSTOCK STW is a secondary treatment plant serving 2,060 people in Calstock, Cornwall, England. It discharges 458.63 m³/day of treated wastewater, with a designed capacity of 3,097 m³/day.
Bere Alston STW is a secondary treatment plant serving St. Dominick, Cornwall, England. It discharges treated wastewater near the coast, operating under UK environmental regulations.
WOULDHAM STW is a secondary treatment plant in Tonbridge and Malling, Kent, England, serving approximately 2,974 people. It discharges treated wastewater near the River Medway estuary, within 10 km of the coast.
SWAY OUTLET CSM DATA is a secondary treatment plant serving 2,588 people in New Forest, England. It discharges 576.18 m³/day and is located within 10 km of the coast.
Brockenhurst STW is a secondary treatment plant in New Forest, England, serving 3,637 people. It discharges 809.72 m³/day of treated wastewater near the coast.
WICKHAM STW is a secondary treatment plant serving 2,251 people in Wickham, Winchester, England. It discharges 501.15 m³/day of treated wastewater and is located within 10 km of the coast.
WROXALL STW is a secondary treatment plant serving 2,945 people in Wroxall, Isle of Wight, England. It discharges 655.66 cubic meters of treated wastewater daily.
BARCOMBE NEW STW is a secondary treatment plant serving 3,451 people in Lewes, East Sussex, England. It discharges 768.31 m³/day of treated wastewater near the coast.
LAVANT STW is a secondary treatment plant serving 2,364 people in Chichester, West Sussex, England. It discharges treated wastewater near the coast, operating under UK regulations.
BOSHAM STW is a secondary treatment plant serving 3,891 people in Bosham, near Chichester, England. It discharges 866.27 m³/day of treated wastewater into the local coastal environment.
Windmill Hill Herstmonceux STW is a secondary treatment plant serving 2,319 people in Wealden, East Sussex, England. It discharges treated wastewater within 10 km of the coast, impacting the English Channel.
STOKE STW is a secondary wastewater treatment plant in Upper Stoke, England, serving approximately 2,932 people. It discharges treated effluent into the Medway estuary, within 10 km of the North Sea coast.
Teynham STW is a secondary treatment plant serving 3,680 people in Swale, Kent, England. Located near the coast, it discharges treated wastewater into the local water environment.
LYDD STW is a secondary wastewater treatment plant serving 3,588 people in Lydd, Folkestone and Hythe, England. It discharges 798.81 cubic meters of treated effluent daily near the Kent coast.
MINSTER STW is a secondary wastewater treatment plant serving 4,314 people in Thanet, Kent, England. It discharges treated effluent near the coast, operating under UK regulations.
EASTRY STW is a secondary treatment plant serving 2,190 people in Dover, Kent, England. It discharges 487.57 cubic meters of treated wastewater daily, operating under UK environmental regulations.
Westfield STW is a secondary treatment plant serving 2,228 people in Rother, East Sussex, England. It discharges treated wastewater near the coast, operating under the EU Urban Waste Water Treatment Directive.
LYNDHURST STW is a secondary wastewater treatment plant in New Forest, England, serving approximately 3,500 people. It discharges 781 cubic meters of treated effluent daily, located within 10 km of the coast.
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 Southern Water. UtilityRadar's records show 3 plants linked to this operator.
Among the indexed plants, COLYTON and COLYFORD STW has the highest designed capacity at 5,357 m3/day.