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.
Hartley Wintney STW serves 20,700 people in Hart, Hampshire, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Harpenden Herts STW serves 36,100 people in St Albans, Hertfordshire, England. The plant discharges treated wastewater into the local water environment under UK regulations.
HADDENHAM STW AYLESBURY is a wastewater treatment plant serving approximately 4,620 people in Haddenham, Buckinghamshire, England. It operates under the UK's regulatory framework for small agglomerations.
Guildford Surrey STW serves approximately 87,800 people in Guildford, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
Goring Goring Oxon STW serves the village of Goring-on-Thames in South Oxfordshire, England, treating wastewater for approximately 7,280 residents. The plant discharges into the River Thames, a major watercourse in southern England.
GODALMING UNSTEAD GODALMING STW is a wastewater treatment plant serving approximately 31,000 people in Guildford, Surrey, England. It operates under the UK's regulatory framework for wastewater treatment.
Gerrards Cross STW in Denham, Buckinghamshire serves approximately 8,100 people. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Fleet Fleet Hants STW serves Hart, England, treating wastewater for approximately 43,000 people. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
Farnham Farnham Surrey STW serves approximately 39,600 people in Waverley, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Faringdon Oxon STW serves the town of Faringdon in Oxfordshire, England. This wastewater treatment plant handles a population equivalent of 7,280 and operates under UK environmental regulations.
ESHER FARM ROAD ESHER SURREY STW serves approximately 114,000 people in Elmbridge, England, as part of the UK's wastewater infrastructure under the Urban Waste Water Treatment Regulations.
EPPING FIDDLERS HAMLET EPPING STW serves Epping Forest, England, treating wastewater for approximately 12,500 people. The plant operates under UK regulations and discharges into local watercourses.
ELSTEAD ELSTEAD SURREY STW is a wastewater treatment plant in Waverley, England, serving approximately 4,580 people. It operates under the UK's regulatory framework for small agglomerations.
East Hampstead Park STW serves Bracknell, England, treating wastewater for approximately 7,490 people. The plant discharges into local watercourses within the Thames River basin.
East Shefford East Shefford B STW serves around 5,170 people in Weston, England. The plant operates under UK wastewater regulations, treating sewage before discharge into local watercourses.
Drayton Drayton Oxon STW is a wastewater treatment plant serving approximately 7,770 people in Vale of White Horse, Oxfordshire, England. It operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
Dorking Pixham Lane Dorking STW serves approximately 27,200 people in Mole Valley, Surrey, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into the River Mole.
DIDCOT FOXHALL ROAD DIDCOT O STW is a wastewater treatment plant serving approximately 34,300 people in South Oxfordshire, England. It operates under the UK's regulatory framework for wastewater treatment.
London Deepham STW serves 887,000 people in Greater London, England. The plant treats wastewater under the EU Urban Waste Water Treatment Directive, discharging into the River Lee catchment which flows to the Thames Estuary.
London Crossness STW is a major wastewater treatment plant serving approximately 1.84 million people in Greater London, United Kingdom. It discharges treated effluent into the River Thames, contributing to the protection of the Thames Estuary ecosys
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 Anglian Water. UtilityRadar's records show 1 plant linked to this operator.
Among the indexed plants, GODALMING UNSTEAD GODALMING STW has the highest designed capacity at 1 m3/day.