Wastewater plants in Ireland

166 plants indexed. Showing 135 matching current filters.

Ireland's urban wastewater treatment is regulated by Uisce Éireann (Irish Water) and the EPA, with major plants serving Dublin, Cork, Limerick and Galway. UtilityRadar indexes 166 wastewater treatment plants in Ireland with a combined designed capacity of 113 m³/day. The largest plant on file is Leixlip Waste Water Treatment Plant, treating 1 m³/day.

Ireland's urban wastewater treatment is regulated by Uisce Éireann (Irish Water) and the EPA, with major plants serving Dublin, Cork, Limerick and Galway.

Plant directory coverage

UtilityRadar's directory currently lists 166 wastewater treatment plants across Ireland. Together these plants represent a combined designed capacity of approximately 113 m³/day.

Largest plant

The largest plant indexed for Ireland is Leixlip Waste Water Treatment Plant, with a designed capacity of 1 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.

135 plants matching filters

Oldcastle Waste Water Treatment Plant

County Meath, The Municipal District of Kells

Oldcastle Waste Water Treatment Plant serves County Meath, Ireland, treating wastewater for approximately 2,400 residents under EU Urban Waste Water Treatment Directive standards.

Not Reported 2,399 Low

Virginia Wastewater treatment plant

County Cavan, Ballyjamesduff Municipal District

Virginia Wastewater treatment plant serves County Cavan, Ireland, treating wastewater for approximately 2,363 people. The plant operates under the EU Urban Waste Water Treatment Directive.

Not Reported 2,363 Low

Ballivor Waste Water Treatment Plant

County Meath, The Municipal District of Trim

Ballivor Waste Water Treatment Plant serves approximately 2,010 people in County Meath, Ireland. The facility operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 2,010 Low

Derrinturn Waste Water Treatment Plant

County Kildare, The Municipal District of Clane — Maynooth

Derrinturn Waste Water Treatment Plant serves County Kildare, Ireland, treating wastewater for approximately 3,070 people. The plant discharges into the local water system, supporting the region's environmental health.

Not Reported 3,070 Low

Mountbellew Waste water treatment plant

County Galway, Ballinasloe Municipal District

Mountbellew Waste water treatment plant serves the community of Mountbellew in County Galway, Ireland. It treats wastewater from a population of approximately 2,474 people.

Not Reported 2,474 Low

Foxford waste water treatment plant

County Mayo, Claremorris-Swinford Municipal District

Foxford waste water treatment plant serves 3,360 people in County Mayo, Ireland. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.

Not Reported 3,360 Low

Ballybay Waste water treatment plant

County Monaghan, Ballybay-Clones Municipal District

Ballybay Waste water treatment plant serves 2,461 people in County Monaghan, Ireland. The facility discharges into local waterways under Irish EPA regulations.

Not Reported 2,461 Low

Castleblayney Waste Water Treatment Plant

County Monaghan, Carrickmacross-Castleblaney Municipal District

Castleblayney Waste Water Treatment Plant serves County Monaghan, Ireland, treating wastewater for approximately 13,700 people under the EU Urban Waste Water Treatment Directive.

Not Reported 13,697 Low

Charleville Wastewater Treatment Plant

County Limerick, The Municipal District of Kanturk-Mallow

Charleville Wastewater Treatment Plant serves County Limerick, Ireland, treating wastewater for approximately 13,300 people. The plant operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 13,300 Low

Kanturk Wastewater Treatment Plant

County Cork, The Municipal District of Kanturk-Mallow

Kanturk Wastewater Treatment Plant serves the town of Kanturk in County Cork, Ireland, treating wastewater for approximately 4,864 people. The plant discharges into the local river system within the Munster region.

Not Reported 4,864 Low

Rathcormac Waste Water Treatment Plant

County Cork, The Municipal District of Fermoy

Rathcormac Waste Water Treatment Plant serves 2,602 people in County Cork, Ireland. The facility operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 2,602 Low

Ennis South Waste Water Treatment Plant

County Clare, Ennis Municipal District

Ennis South Waste Water Treatment Plant serves 3,707 people in County Clare, Ireland. The facility operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 3,707 Low

Clifden Waste Water Treatment Plant

County Galway, Conamara Municipal District

Clifden Waste Water Treatment Plant serves the town of Clifden in County Galway, Ireland. It is located near the coast and treats wastewater for approximately 3,109 people.

Not Reported 3,109 Low

Portumna wastewater treatment plant

County Galway, Loughrea Municipal District

Portumna wastewater treatment plant serves the town of Portumna in County Galway, Ireland, treating wastewater for approximately 2,870 residents. The plant discharges into the local water environment, contributing to the protection of the Shannon Riv

Not Reported 2,870 Low

Gort Waste Water Treatment Plant

County Galway, Loughrea Municipal District

Gort Waste Water Treatment Plant serves the town of Gort in County Galway, Ireland, treating wastewater for a population of approximately 3,216. The plant operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 3,216 Low

Loughrea Waste Water treatment plant

County Galway, Loughrea Municipal District

Loughrea Waste Water Treatment Plant serves County Galway, Ireland, treating wastewater for approximately 6,236 people. The facility operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 6,236 Low

Athenry Waste Water Treatment Plant

County Galway, Athenry-Oranmore Municipal District

Athenry Waste Water Treatment Plant serves County Galway, Ireland, treating wastewater for approximately 5,172 people. The plant operates under Ireland's implementation of the EU Urban Waste Water Treatment Directive.

Not Reported 5,172 Low

Moycullen WastewaterTreatment Plant

County Galway, Conamara Municipal District

Moycullen Wastewater Treatment Plant serves the village of Moycullen in County Galway, Ireland. The plant treats wastewater from a population of approximately 3,237 and discharges into the local environment.

Not Reported 3,237 Low

Ballina waste water treatment plant

County Tipperary, The Municipal District of Nenagh

Ballina waste water treatment plant serves County Tipperary, Ireland, treating wastewater for approximately 3,475 people. The plant operates under Irish and EU regulations for small agglomerations.

Not Reported 3,475 Low

Blackrock Louth Wastewater treatment plant

Dundalk, Leinster

Blackrock Louth Wastewater Treatment Plant serves the Dundalk area in County Louth, Ireland. It treats wastewater from a population of 5,370 and is located within 50 km of the coast.

Not Reported 5,370 Low

Frequently asked

How many wastewater treatment plants are in Ireland?

UtilityRadar indexes 166 wastewater treatment plants in Ireland, with treatment level, capacity, operator and discharge data on each record.

Who operates wastewater treatment in Ireland?

Among the plants on this page, the most-referenced operator is Uisce Éireann (Irish Water). UtilityRadar's records show 20 plants linked to this operator.

What is the largest wastewater treatment plant in Ireland?

Among the indexed plants, Foxford waste water treatment plant has the highest designed capacity at 1 m3/day.

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