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.
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.
LAIGHPARK STW serves Paisley, Scotland, treating wastewater for approximately 130,500 people. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Kirriemuir WWTP serves approximately 7,272 people in Kirriemuir, Angus, Scotland. The plant operates under UK wastewater regulations, discharging treated effluent into local watercourses.
KIRKWALL HEAD OF WORK WWTP serves the town of Kirkwall in the Orkney Islands, Scotland, with a population equivalent of 12,852. The plant operates under UK wastewater regulations, discharging treated effluent into the surrounding marine environment.
Kirkcaldy WWTW is a municipal wastewater treatment plant serving approximately 61,238 people in Kirkcaldy, Fife, Scotland. It operates under the UK's regulatory framework for wastewater treatment.
Kinross WWTW is a municipal wastewater treatment plant serving approximately 5,500 people in Kinross, Scotland, United Kingdom. It operates under the UK's regulatory framework for wastewater treatment.
Kinneil Kerse wastewater treatment plant serves Grangemouth, Scotland, UK. It treats wastewater for approximately 55,000 people and has a designed capacity of 1.00 (units unspecified).
Kelso WWTW is a municipal wastewater treatment plant serving approximately 8,200 people in Kelso, Scottish Borders, United Kingdom. It operates under UK regulations and discharges into the River Tweed catchment.
KEITH WWTP serves Newmill, Moray, Scotland, treating wastewater for approximately 6,194 people. The plant operates under UK regulations and discharges into the local water environment.
JEDBURGH WWTW is a wastewater treatment plant serving approximately 4,719 people in Nisbet, Scottish Borders, United Kingdom. It operates under the EU Urban Waste Water Treatment Directive.
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.
INVERURIE NEW WWTP serves approximately 24,000 people in Inverurie, Aberdeenshire, Scotland. The plant discharges treated wastewater into the River Don, which flows into the North Sea.
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.
HUNTLY WWTW serves the town of Huntly in Aberdeenshire, Scotland, treating wastewater for approximately 6,301 people. The plant operates under UK regulations and discharges into the local water environment.
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.
HAWICK WWTW is a municipal wastewater treatment plant serving approximately 17,551 people in Hawick, Scottish Borders, United Kingdom. It operates under the EU Urban Waste Water Treatment Directive.
HAMILTON STW serves Bothwell, Scotland, treating wastewater for approximately 62,664 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
HADDINGTON WWTW serves approximately 12,000 people in Haddington, East Lothian, Scotland. The plant discharges treated wastewater into the local water environment, contributing to the protection of the Firth of Forth.
Guardbridge WWTW serves Leuchars, Fife, Scotland, treating wastewater for approximately 4,576 people. The plant is located near the coast and operates under UK wastewater regulations.
GRETNA STW serves approximately 5,048 people in Gretna, Scotland. The plant operates under UK wastewater regulations, discharging treated effluent into the local water environment.
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.
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 20 plants linked to this operator.
Among the indexed plants, LAIGHPARK STW has the highest designed capacity at 1 m3/day.