Wastewater plants in United Kingdom

1,887 plants indexed. Showing 598 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.

598 plants matching filters

RUDGWICK STW

Horsham, England

Rudgwick STW is a secondary treatment plant serving 2,294 people in Horsham, England. It discharges 510.72 cubic meters of treated wastewater daily, operating under UK environmental regulations.

Secondary 2,294 Low

HEADCORN STW

Maidstone, England

Headcorn STW is a secondary treatment plant serving 2,733 people in Maidstone, Kent, England. It discharges 608.46 m³/day of treated wastewater into local waterways.

Secondary 2,733 Low

HADLOW STW

Tonbridge and Malling, England

Hadlow STW is a secondary wastewater treatment plant in Tonbridge and Malling, England, serving approximately 3,400 people. It discharges treated effluent into local watercourses within the Kent catchment.

Secondary 3,399 Low

STOKE STW

Upper Stoke, England

STOKE STW is a secondary wastewater treatment plant in Upper Stoke, England, serving approximately 2,932 people. It discharges treated effluent into the Medway estuary, within 10 km of the North Sea coast.

Secondary 2,932 Medium

TEYNHAM STW

Swale, England

Teynham STW is a secondary treatment plant serving 3,680 people in Swale, Kent, England. Located near the coast, it discharges treated wastewater into the local water environment.

Secondary 3,680 Medium

LYDD STW

Folkestone and Hythe, England

LYDD STW is a secondary wastewater treatment plant serving 3,588 people in Lydd, Folkestone and Hythe, England. It discharges 798.81 cubic meters of treated effluent daily near the Kent coast.

Secondary 3,588 Medium

MINSTER STW

Thanet, England

MINSTER STW is a secondary wastewater treatment plant serving 4,314 people in Thanet, Kent, England. It discharges treated effluent near the coast, operating under UK regulations.

Secondary 4,314 Medium

WYE STW

Ashford, England

WYE STW is a secondary wastewater treatment plant serving 2,431 people in Ashford, Kent, England. It discharges treated effluent into local waterways under UK environmental regulations.

Secondary 2,431 Low

CHARING STW

Ashford, England

Charing STW is a secondary treatment plant serving 2,805 people in Ashford, Kent, England. It discharges treated wastewater into the local water environment, contributing to the protection of the River Stour catchment and the North Sea.

Secondary 2,805 Low

EASTRY STW

Dover, England

EASTRY STW is a secondary treatment plant serving 2,190 people in Dover, Kent, England. It discharges 487.57 cubic meters of treated wastewater daily, operating under UK environmental regulations.

Secondary 2,190 Medium

LENHAM STW

Maidstone, England

Lenham STW is a secondary treatment plant serving 3,073 people in Maidstone, Kent, England. It discharges 684.16 m³/day of treated wastewater into the local catchment.

Secondary 3,073 Low

WESTFIELD STW

Rother, England

Westfield STW is a secondary treatment plant serving 2,228 people in Rother, East Sussex, England. It discharges treated wastewater near the coast, operating under the EU Urban Waste Water Treatment Directive.

Secondary 2,228 Medium

EAST PECKHAM STW

Tonbridge and Malling, England

EAST PECKHAM STW is a secondary treatment plant in Tonbridge and Malling, England, serving approximately 2,995 people. It discharges 666.79 cubic meters of treated wastewater daily.

Secondary 2,995 Low

CROWBOROUGH STW

Wealden, England

Crowborough STW is a secondary treatment plant serving 2,273 people in Wealden, East Sussex, England. It discharges treated wastewater into local watercourses within the English Channel catchment.

Secondary 2,273 Low

WADHURST WHITEGATES STW

Wealden, England

Wadhurst Whitegates STW is a secondary treatment plant serving approximately 2,963 people in Wealden, East Sussex, England. It discharges treated wastewater into local watercourses within the wider drainage basin of the English Channel.

Secondary 2,963 Low

LEEDS STW

Maidstone, England

LEEDS STW is a secondary treatment plant serving Maidstone, Kent, England. It treats wastewater for approximately 4,052 people and discharges 902.12 cubic meters per day.

Secondary 4,052 Low

ROBERTSBRIDGE STW

Rother, England

ROBERTSBRIDGE STW is a secondary wastewater treatment plant in Robertsbridge, Rother, East Sussex, England, serving approximately 2,529 people. It discharges treated effluent into local watercourses within the Rother catchment.

Secondary 2,529 Low

LYNDHURST STW

New Forest, England

LYNDHURST STW is a secondary wastewater treatment plant in New Forest, England, serving approximately 3,500 people. It discharges 781 cubic meters of treated effluent daily, located within 10 km of the coast.

Secondary 3,508 Medium

WELLOW STW

New Forest, England

WELLOW STW is a secondary treatment plant in New Forest, England, serving 4,419 people. It discharges 983.82 m³/day of treated wastewater into local watercourses.

Secondary 4,419 Low

KIRKBY LONSDALE STW HUMUS TANK EFFLUENT

Kirkby Lonsdale, England

Kirkby Lonsdale STW Humus Tank Effluent is a secondary treatment plant in England serving 2,014 people. It discharges 448.39 m³/day of treated wastewater into the local watercourse.

Secondary 2,014 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, HEADCORN STW has the highest designed capacity at 8,028 m3/day.

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