1,887 plants indexed. Showing 946 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.
CASTLETON STW serves the Castleton area of Rochdale, Greater Manchester, England, treating wastewater for approximately 5,683 people. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
CARNFORTH STW serves Lancaster, England, treating wastewater for approximately 16,045 people. The plant operates under the UK's regulatory framework for wastewater treatment.
Burnley STW is a wastewater treatment plant serving Pendle, Lancashire, England. It treats wastewater for approximately 132,000 people under the UK's regulatory framework.
BRAMPTON STW serves approximately 5,015 people in Brampton, England. The plant discharges treated wastewater into local watercourses within the River Eden catchment.
Bowden STW serves the Cheshire East area of England, treating wastewater for approximately 7,444 people. The plant operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
Bolton STW is a major wastewater treatment plant serving approximately 369,000 people in Bolton, Greater Manchester, England. It operates under the UK's urban wastewater regulatory framework.
BILLINGTON STW serves the Ribble Valley area in Lancashire, England, treating wastewater for approximately 7,300 residents. The plant discharges into the local water system under UK environmental regulations.
Billinge South STW serves St Helens, England, treating wastewater for approximately 6,295 people. The plant operates under UK regulations, with a designed capacity of 1.00 (units unspecified).
BIDDULPH STW serves approximately 15,815 people in Staffordshire Moorlands, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
BARTON STW serves approximately 7,400 people in Preston, Lancashire, England. The plant is part of the UK's wastewater infrastructure regulated under the Urban Waste Water Treatment Regulations.
Barnoldswick STW serves approximately 12,288 people in Pendle, Lancashire, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Audley STW is a wastewater treatment plant serving approximately 8,000 people in Newcastle-under-Lyme, England. It operates under the UK's regulatory framework for water quality.
ASHTON UNDER LYNE STW serves Tameside, England, treating wastewater for approximately 48,074 people. The plant discharges into local waterways under UK environmental regulations.
AMBLESIDE STW serves the Lake District community of Ambleside, England, treating wastewater for approximately 4,800 residents. The plant discharges into the local catchment within the Lake District National Park.
Altrincham STW serves approximately 42,000 people in Trafford, Greater Manchester, England. The plant discharges treated wastewater into the local water system, contributing to the protection of the Manchester Ship Canal and the Mersey Estuary.
ALSAGER STW serves Lawton Heath End, England, treating wastewater for approximately 13,304 people. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.
ALDERLEY EDGE STW serves approximately 15,000 people in Alderley Edge, Cheshire East, England. The plant discharges treated wastewater into local watercourses within the River Bollin catchment.
Swinton Sewage Treatment Works serves the town of Swinton, South Yorkshire, England. The plant treats wastewater for approximately 18,664 people and discharges into local waterways.
ACKWORTH STW serves approximately 9,000 people in Wakefield, England. The plant discharges treated wastewater into local watercourses within the Aire and Calder catchment, supporting regional water quality.
Danesmoor WPC Works Final Effluent serves approximately 6,300 people in North East Derbyshire, England. The plant operates under UK wastewater regulations, treating sewage from the local community.
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 United Utilities. UtilityRadar's records show 7 plants linked to this operator.
Among the indexed plants, CARNFORTH STW has the highest designed capacity at 1 m3/day.