1,887 plants indexed. Showing 1,266 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.
DORCHESTER STW serves approximately 33,000 people in Dorchester, England. The plant discharges treated wastewater into the local water environment, supporting the River Frome catchment.
DEVIZES STW is a municipal wastewater treatment plant serving approximately 14,267 people in Devizes, Wiltshire, England. It operates under the UK's water quality regulations.
Crewkerne East STW is a wastewater treatment plant serving approximately 6,830 people in Crewkerne, Somerset, England. It operates under the UK's regulatory framework for wastewater treatment.
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.
Chippenham STW serves approximately 37,000 people in Chippenham, Wiltshire, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
CHEW STOKE STW is a wastewater treatment plant in Chew Stoke, England, serving approximately 7,000 people. It operates under UK regulations, discharging treated effluent into local watercourses.
CHEDDAR STW serves the village of Cheddar in Somerset, England, with a designed capacity of 1.00. The plant treats wastewater for a population of 8,779 under UK environmental regulations.
CHARD STW is a wastewater treatment plant serving approximately 31,889 people in Chard, Somerset, England. It operates under the UK's regulatory framework for wastewater treatment.
Cam Valley STW is a wastewater treatment works in Dunkerton, England, serving a population of approximately 7,353. It operates under UK regulations and discharges treated effluent into the local water environment.
CALNE STW serves Studley, Wiltshire, England, treating wastewater for approximately 19,132 people. The plant discharges into local waterways within the Thames River basin.
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.
BRADFORD ON AVON STW serves approximately 10,700 people in Bradford-on-Avon, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the Bristol Avon catchment.
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.
BATH STW serves Swineford, England, treating wastewater for approximately 105,848 people. The plant operates under the UK's implementation of 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.
AMESBURY STW serves the town of Amesbury, Wiltshire, England, treating wastewater for approximately 9,340 people. The plant discharges into the River Avon, a chalk stream of high ecological importance.
Tidworth Garrison STW FE serves approximately 12,850 people in Tidworth, Wiltshire, England. The plant is part of the UK's wastewater infrastructure, operating under the Urban Waste Water Treatment Regulations.
Woolacombe STW serves the coastal village of Woolacombe in North Devon, England, treating wastewater for approximately 9,616 residents. The plant is located near the Bristol Channel and operates under UK environmental regulations.
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, DORCHESTER STW has the highest designed capacity at 1 m3/day.