1,887 plants indexed. Showing 1,267 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.
HEATHFIELD HORHAM STW serves Wealden, East Sussex, England, treating wastewater for approximately 14,000 people. The plant discharges into local watercourses within the English Channel catchment.
SCAYNES HILL STW serves Mid Sussex, England, treating wastewater for approximately 38,000 people. The plant operates under UK regulations derived from the EU Urban Waste Water Treatment Directive.
Worthing STW serves approximately 135,864 people in England, United Kingdom. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Newhaven Lewes STW serves approximately 60,000 people in Seaford, East Sussex, England. The plant discharges treated wastewater into the English Channel via local watercourses.
Burgess Hill STW serves approximately 51,000 people in Mid Sussex, West Sussex, England. The plant discharges treated wastewater into local watercourses, supporting the region's water quality under UK environmental regulations.
UCKFIELD STW serves approximately 22,220 people in Wealden, East Sussex, England. The plant operates under UK regulations derived from the EU Urban Waste Water Treatment Directive.
Paddock Wood STW serves approximately 10,284 people in Tunbridge Wells, Kent, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
Felbridge STW is a wastewater treatment plant serving approximately 6,500 people in Felbridge, Surrey, England. It operates under the UK's water quality regulations, discharging treated effluent into local watercourses.
LITTLESTONE STW serves approximately 13,925 people in Folkestone and Hythe, Kent, England. The plant is located near the coast and operates under UK wastewater regulations.
WESTBERE STW is a wastewater treatment plant serving Canterbury, Kent, England. It treats wastewater for approximately 6,467 people and discharges into the local water environment.
Battle Marley Lane Battle STW serves approximately 6,100 people in Rother, East Sussex, England. The plant discharges treated wastewater into local watercourses within the wider Rother catchment.
Wateringbury STW is a wastewater treatment plant serving approximately 9,700 people in Tonbridge and Malling, Kent, England. It operates under the UK's regulatory framework for wastewater treatment.
STAPLEHURST STW is a wastewater treatment plant serving Staplehurst, near Maidstone, Kent, England. It serves a population of 5,351 and has a designed capacity of 1.00 (units unspecified).
Pembury STW serves approximately 5,500 people in Tunbridge Wells, Kent, England. The plant discharges treated wastewater into local watercourses within the Medway catchment.
EDEN VALE STW serves Dormans Park, Surrey, England, treating wastewater for approximately 13,815 people. The plant operates under the UK's regulatory framework for wastewater treatment.
Wingham Aylesham STW serves approximately 28,180 people in the Dover area of Kent, England. The plant discharges treated wastewater into local watercourses within the Stour catchment.
Horsmonden Tonbridge Kent STW serves Tunbridge Wells, England, treating wastewater for approximately 7,086 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Newnham Valley STW serves Canterbury, Kent, England. The plant treats wastewater for a population of 7,296 and is located within 50 km of the coast.
FAVERSHAM STW serves approximately 29,436 people in Swale, Kent, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
CHARTHAM STW serves 6,564 people in Canterbury, England, treating wastewater under the EU Urban Waste Water Treatment Directive. The plant discharges into the Great Stour river, part of the Stour catchment flowing to the English Channel.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, HEATHFIELD HORHAM STW has the highest designed capacity at 1 m3/day.