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.
Neston STW is a wastewater treatment plant serving approximately 18,075 people in Neston, England. Located near the Dee Estuary, it plays a key role in protecting the local aquatic environment.
Heswall Sewage Treatment Works STW serves approximately 9,300 residents in Heswall, Wirral, England. The plant operates under the UK's wastewater regulatory framework and discharges into the local water environment.
COLEFORD STW serves approximately 26,098 people in Forest of Dean, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive, ensuring appropriate treatment for inland discharge.
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.
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.
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.
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.
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.
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, NESTON STW has the highest designed capacity at 1 m3/day.