1,887 plants indexed. Showing 10 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.
Donaghmore advanced wastewater treatment plant serves Llanrwst, Wales, UK. It discharges treated effluent near the coast, with a designed capacity of 1500 m³/day and a population served of 3031.
Portaferry wastewater treatment plant serves 3,801 people in County Down, Northern Ireland. It provides advanced treatment and discharges 846.23 megaliters annually near the Irish Sea coast.
Moneyreagh wastewater treatment plant serves 2,380 people in County Down, Northern Ireland, with advanced treatment. It discharges 529.87 megaliters annually into the local water environment near the coast.
AVOCH WWTW is an advanced wastewater treatment plant serving Avoch, Scotland, United Kingdom. It treats wastewater from a population of 1,455 and discharges treated effluent into the local environment.
SOUTHERNESS STW is an advanced wastewater treatment plant serving Southerness, Scotland. It treats wastewater for approximately 3,227 people and discharges 718.44 cubic meters per day.
PATNA STW is an advanced wastewater treatment plant in Polnessan, Scotland, serving a population of 2,242. It discharges treated effluent into local watercourses near the coast.
Bluestone Leisure Canaston is an advanced wastewater treatment plant in Robeston Wathen, Wales, serving a population of 2,096. It discharges 466.64 cubic meters of treated effluent daily and is located within 10 km of the coast.
LLANBERIS STW is an advanced wastewater treatment plant in Llanberis, Gwynedd, Wales, serving approximately 2,107 people. It discharges treated effluent near the coast, supporting local water quality in the region.
Crosshands S STW is an advanced wastewater treatment plant serving Cross Hands, Wales, UK. It treats wastewater for a population of 3,261 and discharges 726.01 cubic meters per day.
ST ASAPH STW in St Asaph, Wales, is an advanced treatment plant serving 4,239 people. It discharges 943.75 m³/day of treated wastewater, with a designed capacity of 4,536 m³/day, 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 Dŵr Cymru / Welsh Water. UtilityRadar's records show 5 plants linked to this operator.
Among the indexed plants, PATNA STW has the highest designed capacity at 6,000 m3/day.