1,887 plants indexed. Showing 320 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.
ESHER FARM ROAD ESHER SURREY STW serves approximately 114,000 people in Elmbridge, England, as part of the UK's wastewater infrastructure under the Urban Waste Water Treatment Regulations.
London Deepham STW serves 887,000 people in Greater London, England. The plant treats wastewater under the EU Urban Waste Water Treatment Directive, discharging into the River Lee catchment which flows to the Thames Estuary.
London Crossness STW is a major wastewater treatment plant serving approximately 1.84 million people in Greater London, United Kingdom. It discharges treated effluent into the River Thames, contributing to the protection of the Thames Estuary ecosys
London Beddington STW is a major wastewater treatment plant serving 366,000 people in Greater London, England. It operates under the UK's regulatory framework for urban wastewater treatment.
London Becton STW serves 3.38 million people in Greater London, England. It is one of the largest wastewater treatment plants in the United Kingdom, discharging treated effluent into the River Thames.
Basingstoke Wildmoor Basingst STW serves approximately 117,000 people in Basingstoke and Deane, Hampshire, England. The plant discharges treated wastewater into the River Loddon catchment, part of the Thames Basin.
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.
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.
SWANAGE STW serves approximately 22,000 people in Swanage, Dorset, England. The plant discharges treated wastewater into the English Channel, supporting coastal water quality.
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.
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.
Bournemouth Kinson STW serves approximately 41,911 people in Parley Cross, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.
Clevedon, Nailsea, and Yatton STW is a wastewater treatment plant serving over 52,000 people in Kingston Seymour, England. It operates under the UK's regulatory framework for wastewater treatment.
Bournemouth Holdenhurst STW serves Christchurch, England, treating wastewater for approximately 169,595 people. The plant is located near the coast and operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
CHRISTCHURCH STW serves approximately 59,094 people in Christchurch, England. The plant discharges into local waterways under the UK's wastewater regulatory framework.
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.
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, LONDON Crossness STW has the highest designed capacity at 1 m3/day.