1,887 plants indexed. Showing 391 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.
WATCHET STW serves Williton, Somerset, England, treating wastewater for a population of 10,644. The plant operates under UK regulations and discharges into the local water environment.
WAREHAM STW serves approximately 16,263 people in Wareham, Dorset, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the River Frome and Poole Harbour.
THORNBURY STW serves Old Passage, England, treating wastewater for approximately 13,343 people. The plant is located near the Severn Bridge and operates under UK wastewater regulations.
SWANAGE STW serves approximately 22,000 people in Swanage, Dorset, England. The plant discharges treated wastewater into the English Channel, supporting coastal water quality.
Sharpness STW is a wastewater treatment plant serving approximately 5,000 people in Stroud, Gloucestershire, England. It operates under the UK's regulatory framework for water quality.
RINGWOOD STW serves St Ives, Dorset, England, treating wastewater for approximately 16,500 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Portishead & Pill STW serves 28,827 people in the City of Bristol, England. The plant discharges into the Severn Estuary, a major tidal water body with significant ecological importance.
Poole STW serves approximately 164,000 people in Poole, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
Ferndown, Verwood, West Moors, and St Ives STW serves approximately 40,798 people in Hurn, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
MINEHEAD STW serves Dunster, Somerset, England, treating wastewater for approximately 25,945 people. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
Lytchett Minster STW serves approximately 8,749 people in Dorset, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Bournemouth Kinson STW serves approximately 41,911 people in Parley Cross, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Clevedon, Nailsea, and Yatton STW is a wastewater treatment plant serving over 52,000 people in Kingston Seymour, England. It operates under the UK's regulatory framework for wastewater treatment.
Bournemouth Holdenhurst STW serves Christchurch, England, treating wastewater for approximately 169,595 people. The plant is located near the coast and operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Corfe Mullen STW serves the Pamphill area in Dorset, England, treating wastewater for approximately 7,775 people. The plant operates under UK regulations and discharges into the local water environment.
CHRISTCHURCH STW serves approximately 59,094 people in Christchurch, England. The plant discharges into local waterways under the UK's wastewater regulatory framework.
BRIDPORT STW serves approximately 29,917 people in Eype, England, discharging treated wastewater into the local water environment. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
BRIDGWATER STW serves approximately 82,802 people in Chilton Trinity, Somerset, England. The plant operates under the UK's urban wastewater treatment regulations, discharging treated effluent into local watercourses.
BLACKHEATH STW serves Wareham, Dorset, England, treating wastewater for approximately 6,300 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Bristol STW serves approximately 910,000 people in Bristol, England. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for large agglomerations discharging into sensitive areas.
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 Wessex Water. UtilityRadar's records show 2 plants linked to this operator.
Among the indexed plants, WATCHET STW has the highest designed capacity at 1 m3/day.