1,887 plants indexed. Showing 1,405 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.
Gilford wastewater treatment plant in County Down, Northern Ireland serves about 2,447 people with advanced treatment. It discharges 544.79 megaliters annually and operates under the EU Urban Waste Water Treatment Directive.
Fivemiletown wastewater treatment plant in County Fermanagh, Northern Ireland, serves a population of 2,163 with secondary treatment. It discharges 481.56 cubic meters per day and has a designed capacity of 2,647 cubic meters per day.
Draperstown wastewater treatment plant in Northern Ireland serves approximately 3,275 people with secondary treatment. It discharges treated effluent into local waterways, supporting the region's water quality under UK regulations.
Crossmaglen Liscalgot is a secondary wastewater treatment plant serving Crossmaglen, Northern Ireland. It has a designed capacity of 3,800 m³/day and serves a population of 2,908.
TYNDRUM wastewater treatment plant serves Ardormie, Scotland, treating sewage for 567 people. It operates under secondary treatment standards within the UK regulatory framework.
Coldstream wastewater treatment plant serves Lennel, Scottish Borders, United Kingdom. This secondary treatment facility handles a population equivalent of 2,413 and discharges treated effluent into the local water environment.
STRATHBLANE STW is a secondary treatment plant serving Blanefield, Scotland. It treats wastewater for approximately 1,860 people with a designed capacity of 4,000 m³/day.
Spean Bridge/Roybridge WwTW is a secondary treatment plant serving 1,015 people in Spean Bridge, Scotland. It discharges treated wastewater into the local water environment under UK regulations.
Slamannan Waste Water Treatment Works is a secondary treatment plant in Falkirk, Scotland, serving approximately 1,574 people. It discharges 350.43 cubic meters of treated wastewater daily, with a designed capacity of 1,933.00 cubic meters.
Newtonmore WWTP is a secondary treatment plant serving the village of Newtonmore in the Scottish Highlands. It discharges treated wastewater into the River Spey catchment, supporting the local aquatic ecosystem.
Muirkirk STW is a secondary wastewater treatment plant serving approximately 1,795 people in East Ayrshire, Scotland. It discharges treated effluent into local watercourses within the River Ayr catchment.
Milnathort Waste Water Treatment Works serves 1,923 people in Kinross, Scotland, with secondary treatment. It discharges 428.13 m³/day and has a designed capacity of 2,845 m³/day.
LETHAM WTP is a secondary treatment plant serving 1,653 people in Letham, Angus, Scotland. It discharges 368.02 m³/day of treated wastewater into the local water environment.
Killearn Waste Water Treatment Works is a secondary treatment plant serving 1,607 people in Dumgoyne, Scotland. It discharges 357.77 m³/day of treated effluent into the local water environment.
HARTHILL STW is an advanced wastewater treatment plant serving Whitburn, Scotland. It treats wastewater for approximately 4,040 people with a designed capacity of 6,500 m³/day.
DRUMNADROCHIT WWTP is a secondary treatment plant serving Lewiston, Scotland. It discharges treated wastewater into Urquhart Bay on Loch Ness, part of the River Ness catchment.
BLACKFORD WWTW is a secondary treatment plant serving 1,483 people in Blackford, Scotland. It discharges treated wastewater into the local catchment, ultimately draining to the North Sea.
Walkerburn WWTW is a secondary treatment plant serving about 4,452 people in Walkerburn, Scottish Borders, United Kingdom. It discharges 991.17 m³/day of treated wastewater into the local water environment.
SANQUHAR STW is a secondary treatment plant serving 2,135 people in Sanquhar, Scotland. It discharges 475.33 m³/day of treated wastewater into the local water environment.
ORMISTON WWTW is an advanced wastewater treatment plant serving Pencaitland, East Lothian, Scotland. It treats wastewater for a population of 3,144 and has a designed capacity of 5,100 cubic meters per day.
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 16 plants linked to this operator.
Among the indexed plants, HARTHILL STW has the highest designed capacity at 6,500 m3/day.