Wastewater plants in United Kingdom

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.

Plant directory coverage

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.

Treatment levels

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.

Largest plant

The largest plant indexed for United Kingdom is ROTHERWAS STW FIR TREE LANE HFD STW, with a designed capacity of 76,862 m³/day.

About our data

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.

1,267 plants matching filters

BATTLE MARLEY LANE BATTLE STW

Rother, England

Battle Marley Lane Battle STW serves approximately 6,100 people in Rother, East Sussex, England. The plant discharges treated wastewater into local watercourses within the wider Rother catchment.

Not Reported 6,123 Low

WATERINGBURY STW

Tonbridge and Malling, England

Wateringbury STW is a wastewater treatment plant serving approximately 9,700 people in Tonbridge and Malling, Kent, England. It operates under the UK's regulatory framework for wastewater treatment.

Not Reported 9,686 Low

STAPLEHURST STW

Maidstone, England

STAPLEHURST STW is a wastewater treatment plant serving Staplehurst, near Maidstone, Kent, England. It serves a population of 5,351 and has a designed capacity of 1.00 (units unspecified).

Not Reported 5,351 Low

PEMBURY STW

Tunbridge Wells, England

Pembury STW serves approximately 5,500 people in Tunbridge Wells, Kent, England. The plant discharges treated wastewater into local watercourses within the Medway catchment.

Not Reported 5,528 Low

EDEN VALE STW

Dormans Park, England

EDEN VALE STW serves Dormans Park, Surrey, England, treating wastewater for approximately 13,815 people. The plant operates under the UK's regulatory framework for wastewater treatment.

Not Reported 13,815 Low

WINGHAM AYLESHAM STW

Dover, England

Wingham Aylesham STW serves approximately 28,180 people in the Dover area of Kent, England. The plant discharges treated wastewater into local watercourses within the Stour catchment.

Not Reported 28,180 Low

HORSMONDEN TONBRIDGE KENT STW

Tunbridge Wells, England

Horsmonden Tonbridge Kent STW serves Tunbridge Wells, England, treating wastewater for approximately 7,086 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.

Not Reported 7,086 Low

NEWNHAM VALLEY STW

Canterbury, England

Newnham Valley STW serves Canterbury, Kent, England. The plant treats wastewater for a population of 7,296 and is located within 50 km of the coast.

Not Reported 7,296 Low

FAVERSHAM STW

Swale, England

FAVERSHAM STW serves approximately 29,436 people in Swale, Kent, England. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.

Not Reported 29,436 Medium

CHARTHAM STW

Canterbury, England

CHARTHAM STW serves 6,564 people in Canterbury, England, treating wastewater under the EU Urban Waste Water Treatment Directive. The plant discharges into the Great Stour river, part of the Stour catchment flowing to the English Channel.

Not Reported 6,564 Low

HAM HILL STW

Tonbridge and Malling, England

HAM HILL STW serves Tonbridge and Malling, Kent, England, treating wastewater for approximately 56,101 people. The plant operates under UK regulations and discharges into local watercourses.

Not Reported 56,101 Medium

CRANBROOK STW

Tunbridge Wells, England

CRANBROOK STW serves Cranbrook and Sissinghurst near Tunbridge Wells, Kent, England. The plant treats wastewater for approximately 6,691 people and has a designed capacity of 1.00 cubic meters.

Not Reported 6,691 Low

DITTON STW

Tonbridge and Malling, England

DITTON STW serves approximately 10,078 people in Tonbridge and Malling, Kent, England. The plant operates under the UK's wastewater regulatory framework, discharging treated effluent into local watercourses.

Not Reported 10,078 Low

GODSTONE STW

Godstone, England

GODSTONE STW is a wastewater treatment plant in Godstone, Surrey, England, serving approximately 5,348 people. It operates under the UK's water quality regulations.

Not Reported 5,348 Low

SWALECLIFFE STW

Canterbury, England

Swalecliffe STW serves Canterbury, Kent, England, treating wastewater for approximately 37,000 people. The plant discharges into local watercourses within the Thames River basin.

Not Reported 36,960 Medium

TUNBRIDGE WELLS North STW

Tunbridge Wells, England

Tunbridge Wells North STW serves approximately 28,000 people in Kent, England. The plant operates under UK wastewater regulations, discharging treated effluent into local watercourses.

Not Reported 28,255 Low

BIDBOROUGH STW

Tunbridge Wells, England

Bidborough STW serves Tunbridge Wells, England, treating wastewater for approximately 8,200 people. The plant operates under UK regulations, discharging into local watercourses within the Medway catchment.

Not Reported 8,193 Low

SELLINGE STW

Ashford, England

SELLINGE STW is a wastewater treatment plant serving approximately 5,055 people in Ashford, Kent, England. It operates under the UK's regulatory framework for wastewater treatment.

Not Reported 5,055 Low

EDENBRIDGE STW

Edenbridge, England

EDENBRIDGE STW is a municipal wastewater treatment plant serving approximately 10,500 people in Edenbridge, Kent, England. It operates under the UK's water quality regulations and discharges into the local river system.

Not Reported 10,503 Low

TENTERDEN STW

Tenterden, England

TENTERDEN STW serves the town of Tenterden in Kent, England, treating wastewater for approximately 8,866 residents. The plant discharges into local watercourses within the Rother catchment.

Not Reported 8,866 Low

Frequently asked

How many wastewater treatment plants are in United Kingdom?

UtilityRadar indexes 1887 wastewater treatment plants in United Kingdom, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in United Kingdom?

Among the indexed plants, BATTLE MARLEY LANE BATTLE STW has the highest designed capacity at 1 m3/day.

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