1,887 plants indexed. Showing 1,267 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.
ABINGDON OXON STW serves approximately 38,900 people in the Vale of White Horse, Oxfordshire, England. The plant discharges into the River Thames catchment, supporting local water quality.
BOWERHILL STW serves Berryfield, England, treating wastewater for approximately 6,111 people. The plant operates under UK regulations and discharges into the local water environment.
Yeovil STW serves approximately 54,864 people in Yeovil, Somerset, England. The plant operates under the UK's water quality regulations, discharging treated effluent into the local catchment.
Wotton Under Edge STW serves approximately 5,772 people in Stroud, Gloucestershire, England. The plant operates under UK wastewater regulations and discharges treated effluent into the local water environment.
WOOTTON BASSETT STW serves Royal Wootton Bassett, Wiltshire, England, treating wastewater for approximately 13,250 people. The plant operates under UK regulations, discharging into local watercourses.
WOOL STW serves Bovington, Dorset, England, treating wastewater for approximately 9,456 people. The plant operates under UK regulations, discharging into the local catchment that drains to the English Channel.
WINCANTON STW is a wastewater treatment plant serving Wincanton, Somerset, England. It operates under the UK's regulatory framework for water quality and discharges into the local catchment of the River Cale.
Wimborne STW serves approximately 21,900 people in Wimborne Minster, England. The plant operates under UK regulations and discharges treated effluent into the local water environment.
WICK ST LAWRENCE STW serves Kingston Seymour, North Somerset, England, treating wastewater for approximately 20,579 people. The plant operates under UK regulations and discharges into local waterways.
Weymouth STW serves approximately 90,629 people in Weymouth, England. The plant is located near the coast and discharges into the English Channel via local watercourses.
Weston-super-Mare STW serves over 100,000 people in North Somerset, England, discharging treated wastewater into the Bristol Channel. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Westbury STW is a municipal wastewater treatment plant serving approximately 22,703 people in Westbury, Wiltshire, England. It operates under the UK's water quality regulations, discharging into local watercourses.
Burnham on Sea / Highbridge STW serves around 52,000 people in Huntspill, Somerset, England. The plant discharges treated wastewater into local waterways within the Somerset Levels, a low-lying wetland area.
WELLS STW in Haybridge, Somerset, England, serves approximately 14,608 people as part of the UK's municipal wastewater infrastructure under the Urban Waste Water Treatment Regulations.
WELLINGTON STW serves approximately 14,717 people in Wellington, Somerset, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
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.
WARMINSTER STW is a municipal wastewater treatment plant in Warminster, Wiltshire, England, serving approximately 24,926 people. It operates under the UK's regulatory framework for wastewater treatment.
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.
TROWBRIDGE STW serves approximately 67,871 people in Trowbridge, Wiltshire, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the Bristol Avon catchment.
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.
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 3 plants linked to this operator.
Among the indexed plants, YEOVIL STW has the highest designed capacity at 1 m3/day.