Ballykelly Wastewater Treatment Plant: Serving County Londonderry, Northern Ireland

Ballykelly wastewater treatment plant is located in Walworth Park, Ballykelly, Causeway Coast and Glens District, County Londonderry, Northern Ireland. The plant serves a population of approximately 4,827 people, making it a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The facility is situated within 50 km of the coast, indicating its discharge may influence coastal water quality. As a plant in the United Kingdom, Ballykelly operates under the UWWTD, which requires secondary treatment for inland discharges and more advanced treatment for sensitive areas. The plant's scale suggests it meets the directive's standards for small communities. The designed capacity is 1.00 (likely in megaliters per day or similar unit), providing adequate capacity for the served population. The plant's receiving water body is part of the Foyle catchment, which drains into Lough Foyle and ultimately the Atlantic Ocean. This watershed supports diverse aquatic life and is important for migratory fish species. The plant's discharge contributes to maintaining water quality in this ecologically sensitive area, particularly given its proximity to the coast.

Ballykelly's treated wastewater enters the local river system within the Foyle catchment, flowing into Lough Foyle and then the Atlantic Ocean. This coastal watershed supports diverse aquatic habitats, including important spawning grounds for Atlantic salmon and sea trout. The plant's proximity to the coast (within 50 km) means its discharge can influence nearshore water quality, making effective treatment essential for protecting marine ecosystems.