1,887 plants indexed. Showing 158 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.
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.
SOUTH MILTON STW is a secondary treatment plant in South Hams, England, serving 1,866 people. It discharges 415.44 m³/day of treated wastewater and is located within 10 km of the coast.
Newton Ferrers STW is a secondary treatment plant in South Hams, Devon, England, serving a population of 2,222. It discharges treated wastewater near the coast, operating under UK environmental regulations.
FENITON STW is a secondary treatment plant in East Devon, England, serving 2,103 people. It discharges 468.20 m³/day of treated wastewater near the coast.
CHIDEOCK STW is a secondary wastewater treatment plant in Seatown, Dorset, England, serving approximately 2,182 people. It discharges 485.79 cubic meters of treated effluent daily.
CANNINGTON STW is a secondary treatment plant in Cannington, Somerset, England, serving 2,692 people. It discharges 599.33 m³/day of treated wastewater and is located within 10 km of the coast.
WRINGTON STW is a secondary wastewater treatment plant serving 2,461 people in Wrington, North Somerset, England. It discharges treated effluent near the coast, operating under UK environmental regulations.
WINSCOMBE STW is a secondary wastewater treatment plant in North Somerset, England, serving approximately 3,718 people. It discharges 827.76 m³/day of treated effluent and is located within 10 km of the coast.
REDWICK STW is a secondary wastewater treatment plant serving approximately 3,920 people in Bristol, England. It discharges 872.73 cubic meters of treated effluent daily, operating near the Severn Estuary.
North Petherton STW is a secondary treatment plant serving 3,413 people in Somerset, England. It discharges 759.85 m³/day of treated wastewater and is located within 10 km of the coast.
Nether Stowey STW is a secondary treatment plant in Fiddington, Somerset, England, serving about 2,928 people. It discharges treated wastewater near the coast, with a designed capacity of 4,116 m³/day.
Michaelwood STW is a secondary wastewater treatment plant serving 2,882 people in Stroud, Gloucestershire, England. It discharges treated effluent into the local water environment near the River Severn estuary.
Corfe Castle STW is a secondary wastewater treatment plant serving approximately 2,083 people in Corfe Castle, Dorset, England. It discharges treated effluent into the local environment near the Jurassic Coast.
Charmouth STW is a secondary treatment plant serving 3,621 people in Charmouth, Dorset, England. It discharges 806.16 m³/day of treated wastewater near the Jurassic Coast.
CHARFIELD STW is a secondary wastewater treatment plant in Charfield, England, serving approximately 3,863 people. It discharges 860.04 cubic meters of treated effluent daily and is located near the coast.
ALVESTON STW is a secondary treatment plant in Rudgeway, England, serving 2,205 people. It discharges 490.91 m³/day and is located near the Severn Estuary.
Almondsbury STW is a secondary wastewater treatment plant in Tockington, England, serving a population of 2,649. It discharges 589.76 cubic meters of treated effluent daily and is located near the coast.
Woodbury STW is a secondary wastewater treatment plant in East Devon, England, serving 2,432 people. It discharges 541.45 m³/day and is located within 10 km of the coast.
ST DENNIS STW is a secondary wastewater treatment plant serving 2,551 people in Indian Queens, Cornwall, England. It discharges 567.94 cubic meters per day and is located within 10 km of the coast.
ST CLEER STW is a secondary treatment plant in St Cleer, Cornwall, England, serving approximately 2,595 people. It discharges 577.74 m³/day of treated wastewater 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 1 plant linked to this operator.
Among the indexed plants, REDWICK STW has the highest designed capacity at 12,624 m3/day.