1,887 plants indexed. Showing 415 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.
Iron Mill Bay WWTW serves Crombie, Fife, Scotland, treating wastewater for a population of 19,116. The plant operates under UK regulations and discharges within 50 km of the coast.
INVERCLYDE WWT SERVICE serves Dunoon, Scotland, treating wastewater for approximately 91,453 people. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Helensburgh STW serves the town of Helensburgh in Argyll and Bute, Scotland, treating wastewater for approximately 13,465 people. The plant is located near the coast and discharges into the Firth of Clyde.
GIRVAN STW serves the town of Girvan in South Ayrshire, Scotland, treating wastewater for approximately 13,851 people. The plant operates under UK regulations and discharges into the local water environment.
Fraserburgh WWTW Aberdeen PFI serves Sandhaven, Scotland, treating wastewater for approximately 27,379 people. The plant is located near the coast and operates under UK regulations.
FORRES WWTP serves Kinloss, Scotland, with a population equivalent of 15,182. The plant operates under the EU Urban Waste Water Treatment Directive, which sets treatment standards for agglomerations of this size.
Eyemouth WWTW is a closed secondary treatment plant in Eyemouth, Scotland, with a designed capacity of 74,000 m³/day. It served the local community before decommissioning.
ELLON WWTP serves approximately 11,200 people in Ellon, Aberdeenshire, Scotland. The plant discharges treated wastewater into the local water environment, contributing to the region's water quality management.
Edinburgh Seafield WWTW is a major wastewater treatment plant serving over 746,000 people in Edinburgh, Scotland. It discharges treated effluent into the Firth of Forth, a coastal estuary.
East Calder WWTW serves approximately 111,668 people in West Lothian, Scotland. The plant operates under UK regulations and discharges treated wastewater into the local water environment.
Dunoon WwTW serves approximately 11,000 residents in Dunoon, Argyll and Bute, Scotland. The plant is located within 50 km of the coast and discharges into the Firth of Clyde.
Dunfermline STW serves approximately 77,678 people in North Queensferry, Fife, Scotland. The plant operates under UK wastewater regulations and discharges treated effluent into the Firth of Forth.
BO NESS WWTW is a wastewater treatment plant serving Muirhouses, Falkirk, Scotland. It treats wastewater for a population of approximately 16,168 and discharges into the local water environment.
Banff Macduff WWTW Moray PFI serves Macduff, Scotland, treating wastewater for approximately 12,133 people. The plant operates under the EU Urban Waste Water Treatment Directive, ensuring environmental protection for the local area.
ARDOCH STW serves Dumbarton, Scotland, treating wastewater for approximately 65,631 people. The plant operates under UK regulations and discharges into the local water environment.
Annan Kenziels STW serves approximately 13,145 people in Annan, Dumfries and Galloway, Scotland. The plant discharges treated wastewater into the Solway Firth via local watercourses.
Alloa WWTW is a municipal wastewater treatment plant serving approximately 45,455 people in Alloa, Scotland. It operates under the UK's regulatory framework for wastewater treatment.
Allanfearn WWTP serves Inverness, Scotland, treating wastewater for approximately 80,000 people. The plant discharges into the Moray Firth, a coastal environment in the North Sea.
Connah's Quay STW serves Shotton, Wales, treating wastewater for approximately 18,104 people. The plant operates under UK regulations and discharges into the Dee Estuary.
GREENFIELD STW serves approximately 15,140 people in Greenfield, Wales. The plant discharges treated wastewater into the local water environment under UK regulatory frameworks.
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 Scottish Water. UtilityRadar's records show 18 plants linked to this operator.
Among the indexed plants, EYEMOUTH WWTW has the highest designed capacity at 74,000 m3/day.