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The SWELL Project

The €35m EU-funded Shared Waters Enhancement & Loughs Legacy (SWELL) project aims to improve the quality of water in Carlingford Lough and Lough Foyle through the upgrade of wastewater assets on both sides of the border. The project’s legacy will be the development of a unique ecosystem model that will support further improvements in these shared waters.


The SWELL project represents a cross-border partnership comprising NI Water, Irish Water, Agri-Food & Biosciences Institute (AFBI), Loughs Agency and East Border Region, working collaboratively to improve water quality within the shared waters of Carlingford Lough and Lough Foyle.

The partnership will utilise best practice, innovation and knowledge sharing to effectively achieve the outputs and results of the Interreg VA Programme. Through engineering excellence, strategic catchment investigation and modelling, SWELL will deliver sustainable upgrades to wastewater assets on both sides of the border and make a positive contribution towards ‘Good’ Water Framework Directive classification.

The SWELL project has been funded by the European Union’s INTERREG VA programme, managed by the Special EU Programmes Body (SEUPB).

The ERDF contribution to this application is €29.8m (85%) with €5.25m (15%) being made available through match funding from the Department of Agriculture and Rural Development (DAERA) in Northern Ireland and the Department of Housing, Planning and Local Government (DHPLG) in Ireland.

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The Shared Waters

Carlingford Lough

Carlingford Lough is a sea lough located between Counties Armagh and Down in Northern Ireland and County Louth in Ireland.

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The Shared Waters

Lough Foyle

Lough Foyle is a shallow estuarine sea lough located on the northern coast of Ireland, between County Donegal in Ireland and County Londonderry in Northern Ireland.

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Funders & Partners

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The Swell Project Waves
Loughs Agency
Agri-Food and Biosciences Institute (AFBI)
East Border Region (EBR)
Irish Water
Northern Ireland Water
Department of Housing, Planning and Local Government
Department of Agriculture, Environment and Rural Affairs

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News Swell Newsletter – Autumn 2021

12 Oct, 2021

Swell Newsletter – Autumn 2021

Official newsletter of the shared waters enhancement & loughs legacy
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