1,887 plants indexed. Showing 1,379 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.
EAST HARLING STW is a secondary treatment plant in Breckland, Norfolk, serving 2,725 people. It discharges 606.68 m³/day of treated wastewater, with a designed capacity of 3,114 m³/day.
Earls Colne STW is a secondary treatment plant serving 4,042 people in Braintree, Essex, England. It discharges treated wastewater into the local river system within the Colne catchment.
DONINGTON STW is a secondary wastewater treatment plant in South Holland, England, serving approximately 2,607 people. It discharges treated effluent into the local water environment under UK regulations.
Doddington STW is a secondary treatment plant serving 3,720 people in Fenland, Cambridgeshire, England. It discharges treated wastewater into local watercourses within the Great Ouse catchment.
Debenham STW is a secondary treatment plant serving 2,138 people in Mid Suffolk, England. It discharges treated wastewater into local watercourses, operating under UK environmental regulations.
CUBLINGTON STW is a secondary wastewater treatment plant in Cublington, Buckinghamshire, England, serving approximately 2,922 people. It discharges treated effluent into local watercourses within the Thames River basin.
CROWLAND STW is a secondary treatment plant serving 3,788 people in Crowland, South Holland, England. It discharges 843.34 cubic meters of treated wastewater daily.
Cottesmore STW is a secondary wastewater treatment plant serving Greetham, Rutland, England. It treats wastewater for approximately 4,256 people with a designed capacity of 5,550 m³/day.
Coney Weston STW is a secondary treatment plant in West Suffolk, England, serving approximately 2,146 people. It discharges 477.77 cubic meters of treated wastewater daily, with a designed capacity of 2,179 cubic meters.
CLARE STW is a secondary wastewater treatment plant serving Braintree, Essex, England. It discharges treated effluent into local waterways, supporting the region's water quality management.
CHELLINGTON STW is a secondary wastewater treatment plant serving Harrold, Bedford, England. It treats wastewater for a population of 2,407 with a designed capacity of 2,800 m³/day.
CAISTOR STW is a secondary wastewater treatment plant in West Lindsey, England, serving approximately 3,800 people. It discharges treated effluent into local watercourses within the Lincolnshire region.
BYLAUGH STW is a secondary treatment plant serving approximately 3,000 people in Breckland, Norfolk, England. It discharges treated wastewater into local waterways within the Norfolk region.
BROUGHTON STW is a secondary wastewater treatment plant serving 2,667 people in Broughton, North Northamptonshire, England. The facility has a designed capacity of 4,280 m³/day and discharges treated effluent into local watercourses.
BRISTON STW is a secondary wastewater treatment plant in North Norfolk, England, serving approximately 2,571 people. It discharges treated effluent into local watercourses, supporting the region's water quality management.
BOZEAT STW is a secondary wastewater treatment plant serving 2,119 people in Bozeat, North Northamptonshire, England. It discharges treated effluent into local watercourses under UK environmental regulations.
BOURN STW is a secondary treatment plant in Bourn, South Cambridgeshire, England, serving approximately 3,000 people. It discharges treated wastewater into local watercourses within the Great Ouse catchment.
Bottisham STW is a secondary treatment plant in East Cambridgeshire, England, serving approximately 3,912 people. It discharges treated wastewater into local watercourses, supporting the region's water quality.
Billinghay STW is a secondary wastewater treatment plant in North Kesteven, Lincolnshire, England, serving a population of 2,499. It discharges treated effluent into local watercourses within the Anglian Water region.
BASSINGHAM STW is a secondary wastewater treatment plant in North Kesteven, England, serving 2,286 people. It discharges treated effluent into local watercourses, supporting the River Witham catchment.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, CAISTOR STW has the highest designed capacity at 9,728 m3/day.