Limavady Wastewater Treatment Plant, County Londonderry, Northern Ireland

The Limavady wastewater treatment plant is a municipal facility located on Ballykelly Road in Limavady, within the Causeway Coast and Glens District of County Londonderry, Northern Ireland. It serves a population of around 16,194, classifying it as a medium-sized agglomeration under EU classification. As a plant in the United Kingdom, Limavady operates under the Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into coastal or estuarine waters. The plant is situated within 50 km of the coast, with treated effluent likely discharging into local watercourses that flow toward the North Atlantic Ocean. The surrounding area includes the Roe River basin, which supports diverse aquatic life and contributes to the ecological health of Lough Foyle and the broader coastal environment.

The Limavady plant discharges into local waterways that drain into Lough Foyle, a large sea lough on the north coast of Ireland, which ultimately flows into the North Atlantic Ocean. This coastal environment supports important fish populations, including salmon and sea trout, and provides habitat for migratory birds. The plant's proximity to sensitive coastal ecosystems underscores the importance of effective treatment to protect water quality.