Kilkenny City Waste Water Treatment Plant - County Kilkenny, Ireland

Kilkenny City Waste Water Treatment plant is a municipal facility located in County Kilkenny, Ireland, along the Nore Valley Walk. It serves a population of approximately 51,988, classifying it as a medium agglomeration under EU regulations. The plant is situated in the historic city of Kilkenny, a major inland urban center in the southeast of Ireland. As an Irish wastewater treatment facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant's designed capacity is 1.00 (likely in cubic meters per second or similar unit), indicating it is sized to handle the city's wastewater load. The treated effluent is discharged into the River Nore, a major tributary of the River Barrow, which flows into the Celtic Sea at Waterford Harbour. The Nore is an ecologically important river supporting salmonid fisheries and diverse aquatic life. The plant plays a key role in protecting water quality in the Nore catchment, which is part of the wider Barrow-Nore-Suir river basin district.

The plant discharges into the River Nore, which flows southeast to join the River Barrow, eventually reaching the Celtic Sea at Waterford Harbour. The Nore is a designated salmonid river and supports populations of Atlantic salmon, brown trout, and European eel. The catchment is primarily agricultural, with some urban runoff from Kilkenny City. Maintaining high treatment standards is critical to prevent nutrient enrichment and protect downstream estuarine and coastal ecosystems.