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

BUDE STW

Flexbury, England

BUDE STW is a wastewater treatment plant serving Flexbury, Cornwall, England. It handles a population equivalent of approximately 18,472 and operates under UK regulations.

Not Reported 18,472 Medium

BUCKFASTLEIGH STW

Teignbridge, England

Buckfastleigh STW serves the Teignbridge area in Devon, England, treating wastewater for approximately 7,976 people. The plant operates under UK regulations, with a designed capacity of 1.00 volume units.

Not Reported 7,976 Low

BODMIN SCARLETTS WELL STW

Egloshayle, England

Bodmin Scarletts Well STW serves the Egloshayle area in Cornwall, England, treating wastewater for approximately 9,300 people. The plant discharges into the local water environment under UK regulations.

Not Reported 9,297 Low

BODMIN NANSTALLON STW

Egloshayle, England

Bodmin Nanstallon STW serves approximately 11,000 people in Egloshayle, Cornwall, England. The plant discharges treated wastewater into the local river system, contributing to the protection of the River Camel catchment.

Not Reported 10,976 Low

BARNSTAPLE STW

North Devon, England

Barnstaple STW serves approximately 47,935 people in North Devon, England. The plant discharges treated wastewater into the local catchment, ultimately reaching the Bristol Channel.

Not Reported 47,935 Medium

AXMINSTER STW

East Devon, England

AXMINSTER STW serves approximately 7,964 people in East Devon, England, treating wastewater under the UK's regulatory framework. The plant discharges into local waterways, contributing to the region's water quality management.

Not Reported 7,964 Low

NORTHFLEET STW

Gravesham, England

Northfleet STW serves approximately 52,000 people in Gravesham, England, as part of the UK's wastewater infrastructure. The plant operates under the Urban Waste Water Treatment Regulations, which implement the EU Urban Waste Water Treatment Directive

Not Reported 51,956 Medium

GRAVESEND STW

Gravesham, England

Gravesend STW serves Gravesham, Kent, England, treating wastewater for approximately 59,313 people. The plant operates under the UK's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 59,313 Medium

COXHEATH STW

Maidstone, England

COXHEATH STW is a wastewater treatment plant serving approximately 7,636 people in Maidstone, Kent, England. It operates under the UK's regulatory framework for wastewater treatment.

Not Reported 7,636 Low

RYE STW

Rother, England

RYE STW is a municipal wastewater treatment plant serving Rother, England, United Kingdom. It treats wastewater from approximately 5,619 people and is located near the coast in East Sussex.

Not Reported 5,619 Medium

IVY DOWN LANE EAST OAKLEY

Basingstoke and Deane, England

IVY DOWN LANE EAST OAKLEY is a wastewater treatment plant serving approximately 4,640 people in Basingstoke and Deane, Hampshire, England. It operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.

Not Reported 4,640 Low

ALRESFORD STW

Winchester, England

ALRESFORD STW serves the Winchester area in Hampshire, England, treating wastewater for approximately 5,633 people. The plant operates under the UK's regulatory framework for wastewater treatment.

Not Reported 5,633 Low

WHITCHURCH STW

Basingstoke and Deane, England

WHITCHURCH STW serves the town of Whitchurch in Hampshire, England, treating wastewater for a population of approximately 4,806. The plant operates under UK environmental regulations and discharges treated effluent into local watercourses.

Not Reported 4,806 Low

BISHOPS WALTHAM NEW STW

Winchester, England

Bishops Waltham New STW serves approximately 13,752 people in Winchester, England. The plant operates under UK wastewater regulations and discharges into the local water environment.

Not Reported 13,752 Low

BILLINGSHURST STW

Billingshurst, England

Billingshurst STW serves approximately 7,600 people in West Sussex, England. The plant discharges treated wastewater into the local water environment, contributing to the protection of the River Arun catchment.

Not Reported 7,631 Low

BURSLEDON STW

Eastleigh, England

Bursledon STW serves 7,270 people in Eastleigh, Hampshire, England. The plant discharges into the River Hamble estuary, a tidal waterway flowing into Southampton Water and the Solent.

Not Reported 7,270 Low

EASTCHURCH STW

Swale, England

EASTCHURCH STW serves the Swale area of Kent, England, treating wastewater for approximately 8,068 people. The plant is located near the coast and discharges into the local watershed.

Not Reported 8,068 Medium

LISS STW

East Hampshire, England

LISS STW serves East Hampshire, England, treating wastewater for approximately 6,067 people. The plant operates under the UK's regulatory framework for wastewater treatment.

Not Reported 6,067 Low

STEYNING STW

Steyning, England

Steyning STW is a municipal wastewater treatment plant in West Sussex, England, serving approximately 10,183 people. It operates under the UK's regulatory framework for wastewater treatment.

Not Reported 10,183 Low

SIDLESHAM STW

Chichester, England

SIDLESHAM STW is a wastewater treatment plant serving approximately 28,099 people in Sidlesham, near Chichester, England. It operates under the UK's regulatory framework for wastewater treatment.

Not Reported 28,099 Medium

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.

Who operates wastewater treatment in United Kingdom?

Among the plants on this page, the most-referenced operator is Southern Water. UtilityRadar's records show 3 plants linked to this operator.

What is the largest wastewater treatment plant in United Kingdom?

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

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