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.
Chertsey Lyne Lane Chertsey STW is a wastewater treatment plant in Runnymede, Surrey, England, serving approximately 85,500 people. It operates under the UK's regulatory framework for wastewater treatment.
Cassington Yarnton Road Cassi STW is a wastewater treatment plant serving West Oxfordshire, England, UK. It treats wastewater for approximately 15,500 people under the EU Urban Waste Water Treatment Directive.
Carterton Carterton Oxon STW serves approximately 15,500 people in West Oxfordshire, England. The plant discharges treated wastewater into local watercourses within the Thames River basin.
Camberley Surrey STW serves 139,000 people in Surrey Heath, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive, ensuring regulatory compliance for large agglomerations.
CADDINGTON STW serves Dacorum, Hertfordshire, England, treating wastewater for approximately 5,590 people. The plant discharges into local waterways under UK environmental regulations.
BYFIELD BYFIELD NORTHANTS STW serves approximately 4,900 people in Byfield, England. The plant discharges treated wastewater into local watercourses within the West Northamptonshire area.
BURSTOW STW is a wastewater treatment plant serving Smallfield, England, United Kingdom. It serves a population of approximately 7,890 and is located inland in Surrey.
Burghfield Burghfield Berks STW is a wastewater treatment plant serving approximately 6,870 people in Burghfield, West Berkshire, England. It operates under the UK's regulatory framework for wastewater treatment.
BUNTINGFORD ASPENDEN LANE BUN STW serves the town of Buntingford in East Hertfordshire, England. The plant treats wastewater for a population of approximately 5,860 under UK environmental regulations.
BRACKNELL HAZELWOOD LANE BINF STW serves Binfield, England, treating wastewater for approximately 91,100 people. The plant operates under the UK's regulatory framework for wastewater treatment.
Bourton on the Water Bourton O STW serves the Cotswold area in Gloucestershire, England, treating wastewater for approximately 6,460 people. The plant operates under the UK's regulatory framework for wastewater treatment.
Bordon Hants STW serves approximately 39,400 people in East Hampshire, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
BLOXHAM BLOXHAM OXON STW serves approximately 4,800 people in Cherwell, Oxfordshire, England. The plant discharges treated wastewater into local watercourses under UK environmental regulations.
RADLETT STW serves approximately 94,000 people in Hertsmere, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Bishops Stortford Bishop S Sto STW serves approximately 54,600 people in Uttlesford, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Bicester Bicester Oxon STW is a municipal wastewater treatment plant serving approximately 45,500 people in Cherwell, Oxfordshire, England. It operates under the UK's regulatory framework for wastewater treatment.
Berkhamsted Sewage Works Bullbegga STW serves approximately 23,300 people in Dacorum, Hertfordshire, England. The plant operates under the UK's wastewater regulations, treating sewage from the Berkhamsted area before discharge.
BENSON HENLEY ROAD BENSON OX STW is a wastewater treatment plant in South Oxfordshire, England, serving approximately 6,900 people. It operates under the UK's regulatory framework for wastewater treatment.
Banbury Spital Farm Banbury STW serves approximately 90,200 people in Cherwell, Oxfordshire, England. The plant operates under the UK's wastewater regulatory framework, ensuring treated effluent meets environmental standards.
Bampton Bampton Oxon STW serves approximately 5,100 people in West Oxfordshire, England. The plant operates under the UK's regulatory framework for wastewater treatment.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, BURSTOW STW has the highest designed capacity at 1 m3/day.