1,887 plants indexed. Showing 369 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.
Great Wishford STW is a secondary treatment plant serving approximately 2,053 people in Wilton, Wiltshire, England. It discharges treated wastewater into the local catchment, contributing to the protection of the River Wylye and the wider Hampshire A
COLERNE STW is a secondary wastewater treatment plant in Colerne, Wiltshire, England, serving approximately 2,586 people. It discharges treated effluent into local watercourses, supporting the region's water quality.
WIVELISCOMBE HILLSMOOR STW is a secondary treatment plant in Wiveliscombe, Somerset, England, serving about 3,191 people. It discharges 710.43 m³/day of treated wastewater into local watercourses.
TISBURY STW is a secondary treatment plant in Tisbury, Wiltshire, England, serving approximately 4,310 people. It discharges 959.56 m³/day of treated wastewater and has a designed capacity of 6,250 m³/day.
THORNFORD STW is a secondary treatment plant serving Beer Hackett, Dorset, England. It discharges 927.50 m³/day of treated wastewater, operating under UK regulations.
SHILLINGSTONE STW is a secondary wastewater treatment plant in Shillingstone, Dorset, England, serving approximately 2,663 people. It discharges treated effluent into local watercourses within the Stour catchment.
Pucklechurch STW is a secondary treatment plant in South Gloucestershire, England, serving approximately 2,629 people. It discharges treated wastewater into local watercourses, supporting the region's environmental health.
MILBORNE PORT STW is a secondary wastewater treatment plant in Goathill, Dorset, England, serving approximately 4,209 people with a designed capacity of 4,794 m³/day and an average discharge volume of 937 m³/day.
MERRIOTT STW is a secondary treatment plant in Merriott, Somerset, England, serving a population of 3,376. It discharges treated wastewater into local watercourses, contributing to the region's water quality management.
MERE STW is a secondary wastewater treatment plant in Mere, Wiltshire, England, serving a population of 3,292. It discharges 732.91 m³/day of treated effluent into local watercourses.
ILCHESTER STW is a secondary treatment plant serving Ilchester, Somerset, England. It discharges treated wastewater into local waterways, supporting environmental protection in the region.
HURDCOTT STW is a secondary treatment plant in Winterbourne Earls, England, serving 3,326 people. It discharges 740.48 m³/day of treated wastewater, with a designed capacity of 4,283.00 m³/day.
EAST COKER STW is a secondary treatment plant serving approximately 3,445 people in East Coker, Somerset, England. It discharges treated wastewater into the local water environment, operating under UK regulations.
CASTLE CARY STW is a secondary wastewater treatment plant serving Castle Cary, Somerset, England. It treats wastewater for a population of 3,366 with a designed capacity of 5,433 m³/day.
BUTLEIGH STW is a secondary treatment plant serving Butleigh, Somerset, England. It discharges treated wastewater into local watercourses, supporting the region's water quality management.
BOX STW is a secondary wastewater treatment plant serving Box, Wiltshire, England. It treats wastewater for a population of 2,256 and discharges 502.26 m³/day, operating under UK environmental regulations.
Bishops Lydeard STW is a secondary treatment plant serving 2,091 people in Somerset, England. It discharges 465.53 m³/day of treated wastewater, with a designed capacity of 2,450 m³/day.
WILLAND STW is a secondary wastewater treatment plant in Mid Devon, England, serving approximately 3,353 people. It discharges treated effluent into local watercourses within the Devon and Torbay catchment.
UFFCULME STW is a secondary treatment plant in Mid Devon, England, serving 2,443 people. It discharges 543.90 cubic meters of treated wastewater, with a designed capacity matching the population served.
Tatworth STW is a secondary wastewater treatment plant in Dorset, England, serving approximately 2,663 people. It discharges treated effluent into local watercourses within the Axe catchment.
UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, MERE STW has the highest designed capacity at 8,207 m3/day.