Claudy Wastewater Treatment Plant, Northern Ireland - Secondary Treatment Facility

Claudy wastewater treatment plant is located on Learmount Road in the village of Claudy, within the Derry and Strabane District of County Londonderry, Northern Ireland. The plant serves a population of around 2,722 and provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive for agglomerations of this size. As a secondary treatment facility, Claudy WWTP uses biological processes to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 3,409 cubic meters per day, with an average daily flow of 606 cubic meters, indicating it operates well within its capacity. This ensures reliable treatment performance and compliance with regulatory standards. The treated effluent is discharged into local rivers that drain into the Foyle catchment, ultimately reaching Lough Foyle and the Atlantic Ocean. The plant plays a key role in protecting the water quality of these sensitive ecosystems, supporting aquatic life and maintaining the ecological balance of the region's waterways.

Claudy WWTP discharges into the River Faughan, which flows northward into Lough Foyle, a large sea lough on the north coast of Ireland. Lough Foyle is an important habitat for migratory birds and supports diverse aquatic species. The plant's secondary treatment helps reduce nutrient and organic pollution, safeguarding the ecological health of the river and the lough.