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.
Crowborough STW is a secondary treatment plant serving 2,273 people in Wealden, East Sussex, England. It discharges treated wastewater into local watercourses within the English Channel catchment.
Wadhurst Whitegates STW is a secondary treatment plant serving approximately 2,963 people in Wealden, East Sussex, England. It discharges treated wastewater into local watercourses within the wider drainage basin of the English Channel.
LEEDS STW is a secondary treatment plant serving Maidstone, Kent, England. It treats wastewater for approximately 4,052 people and discharges 902.12 cubic meters per day.
ROBERTSBRIDGE STW is a secondary wastewater treatment plant in Robertsbridge, Rother, East Sussex, England, serving approximately 2,529 people. It discharges treated effluent into local watercourses within the Rother catchment.
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.
WELLOW STW is a secondary treatment plant in New Forest, England, serving 4,419 people. It discharges 983.82 m³/day of treated wastewater into local watercourses.
Kirkby Lonsdale STW Humus Tank Effluent is a secondary treatment plant in England serving 2,014 people. It discharges 448.39 m³/day of treated wastewater into the local watercourse.
Warwick Bridge and District STW Humus is a secondary treatment plant serving approximately 2,079 people in Warwick Bridge, England. It discharges 462.86 cubic meters of treated wastewater daily.
INGLETON ETW EFFLUENT FROM LAND TREATMNT is a secondary treatment plant in Thornton in Lonsdale, England, serving 2,735 people. It discharges 608.91 cubic meters of treated wastewater daily.
Newbiggin STW Humus Tank Effluent is a secondary treatment plant serving 2,296 people in Newbiggin, England. It discharges 511.17 m³/day of treated wastewater near the coast.
Dalston WWTW is a secondary treatment plant serving 1,694 people in Dalston, England. It discharges 377.14 megalitres of treated wastewater annually, operating under UK environmental regulations.
WRENBURY STW is a secondary treatment plant serving approximately 3,060 people in Aston, England. It discharges 681.26 m³/day of treated wastewater, operating under UK regulations.
WILPSHIRE STW is a secondary treatment plant serving 3,042 people in Ribble Valley, Lancashire, England. It discharges 677.25 m³/day of treated wastewater into local watercourses.
WAVERTON STW is a secondary treatment plant in Waverton, England, serving approximately 2,200 people. It discharges 489.57 cubic meters of treated wastewater daily, with a designed capacity of 2,232 cubic meters.
TARPORLEY STW is a secondary treatment plant serving 2,799 people in Tarporley, England. It discharges 623.15 cubic meters of treated wastewater daily, with a designed capacity of 2,979 cubic meters.
SEDBURGH STW is a secondary wastewater treatment plant in Sedbergh, England, serving approximately 2,967 people. It discharges 660.56 cubic meters of treated effluent daily, operating under UK regulations.
MOBBERLEY STW is a secondary wastewater treatment plant in Mobberley, England, serving approximately 2,861 people. It discharges 636.96 m³/day of treated effluent, with a designed capacity of 2,980 m³/day.
MELLING STW is a secondary wastewater treatment plant serving Waddicar, England, with a population equivalent of 2,856. It discharges treated effluent near the coast of the Liverpool City Region.
LONGTOWN STW is a secondary treatment plant serving 2,789 people in Longtown, England. It discharges 620.93 m³/day of treated wastewater and is located within 10 km of the coast.
Kirkby Stephen STW is a secondary treatment plant in Winton, England, serving 2,783 people. It discharges 619.59 m³/day of treated wastewater, with a designed capacity of 2,885 m³/day.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, WELLOW STW has the highest designed capacity at 4,419 m3/day.