Callan Wastewater Treatment Plant: Serving Callan, County Kilkenny, Ireland

Callan Wastewater Treatment Plant is a municipal facility located in Callan, County Kilkenny, Ireland. It serves a population of around 3,070 people, making it a small agglomeration under Irish and EU classifications. The plant is situated inland in the Nore River catchment area. As an Irish wastewater treatment plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00 (likely in thousand cubic meters per day or similar unit), indicating it is sized for the local population. Treatment processes typically include mechanical and biological stages to meet regulatory standards. The treated effluent is discharged into a local watercourse, likely a tributary of the River Nore, which flows into the Barrow River and eventually into Waterford Harbour and the Celtic Sea. The plant plays a key role in protecting water quality in the Nore catchment, supporting aquatic life and downstream ecosystems.

The plant discharges into the Nore River catchment, part of the Barrow-Nore-Suir river system that drains into Waterford Harbour and the Celtic Sea. This watershed supports diverse aquatic habitats, including salmonid fisheries and sensitive freshwater ecosystems. The plant's treatment helps maintain water quality standards under the EU Water Framework Directive, protecting downstream biodiversity and recreational uses.