1,887 plants indexed. Showing 946 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.
SWINSTIE STW serves Bellside, North Lanarkshire, Scotland, treating wastewater for approximately 11,458 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Strathaven STW is a municipal wastewater treatment plant serving approximately 7,700 people in Strathaven, South Lanarkshire, Scotland. It operates under UK regulations implementing the EU Urban Waste Water Treatment Directive.
STONEHOUSE STW is a wastewater treatment plant serving Stonehouse, South Lanarkshire, Scotland. It treats wastewater for a population of 5,289 and discharges into the local water environment.
Stirling WWTW serves over 73,000 people in Stirling, Scotland. The plant discharges treated wastewater into the River Forth, supporting the local water environment.
STEWARTON STW serves approximately 7,200 people in Stewarton, East Ayrshire, Scotland. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
SPRINGFIELD WWTW serves the town of Springfield in Fife, Scotland, treating wastewater for approximately 7,000 residents. The plant discharges into the local water environment under Scottish regulatory oversight.
South Queensferry WWTW serves approximately 8,590 people in South Queensferry, Scotland. The plant discharges treated wastewater into the Firth of Forth, a major estuary on Scotland's east coast.
Skellyton STW serves Larkhall, Scotland, treating wastewater for approximately 16,200 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
SHOTTS STW serves the town of Shotts in North Lanarkshire, Scotland, treating wastewater for approximately 9,684 people. The plant operates under UK and Scottish water quality regulations.
SELKIRK WWTW serves approximately 7,200 people in Selkirk, Scottish Borders, United Kingdom. The plant discharges treated wastewater into the local water environment, supporting the River Tweed catchment.
SCONE WWTP serves approximately 5,000 people in Perth, Scotland. The plant operates under UK wastewater regulations, discharging treated effluent into the River Tay catchment.
PLAINS STW serves the community of Plains in North Lanarkshire, Scotland. The plant operates under UK wastewater regulations, treating sewage for approximately 5,365 residents.
Pitlochry WWTP serves the town of Pitlochry in Perth and Kinross, Scotland, treating wastewater for approximately 5,400 residents. The plant discharges into the local water environment under Scottish regulatory oversight.
Philipshill STW serves Bothwell, South Lanarkshire, Scotland, treating wastewater for approximately 61,000 people. The plant operates under UK regulations aligned with the EU Urban Waste Water Treatment Directive.
Perth City WWTP serves approximately 84,000 people in Perth, Scotland. The plant discharges into the River Tay, supporting the local watershed and downstream ecosystems.
Penicuik WWTW serves approximately 12,685 people in Penicuik, Midlothian, Scotland. The plant operates under UK wastewater regulations, discharging treated effluent into local watercourses within the River Esk catchment.
Peebles WWTW serves approximately 10,500 people in Peebles, Scottish Borders, United Kingdom. The plant discharges into the River Tweed, a key salmon river in the region.
Newton Stewart STW serves the town of Newton Stewart in Dumfries and Galloway, Scotland, treating wastewater for approximately 5,020 people. The plant operates under UK regulations and discharges into the local water environment.
NEILSTON STW serves approximately 5,900 people in Neilston, East Renfrewshire, Scotland. The plant is part of the UK's wastewater infrastructure regulated under the Urban Waste Water Treatment (Scotland) Regulations.
MAYBOLE STW serves the town of Maybole in South Ayrshire, Scotland, with a population equivalent of 4,955. The plant is part of the UK's wastewater infrastructure regulated under the Urban Waste Water Treatment (Scotland) Regulations.
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, SWINSTIE STW has the highest designed capacity at 1 m3/day.