Overview
Mortarstown Waste Water Treatment Plant serves County Laois, Ireland, treating wastewater for approximately 39,000 people. The plant discharges into the local river system within the Barrow catchment.
Mortarstown Waste Water Treatment Plant is located in County Laois, Ireland, near the town of Graiguecullen. It serves a population of approximately 39,043 people, classifying it as a medium-sized agglomeration under Irish and EU regulations. The plant is situated along the Barrow Way, close to the River Barrow, a major watercourse in southeastern Ireland. As an Irish wastewater treatment facility, Mortarstown 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 is expected to meet these regulatory standards to protect water quality. The treated effluent from Mortarstown likely discharges into the River Barrow, which flows southward through County Carlow and County Wexford before entering the Celtic Sea at Waterford Harbour. The River Barrow supports diverse aquatic life and is an important ecological corridor. The plant's operation is critical for maintaining the health of this river system and the downstream coastal environment.
Environmental context
The River Barrow is one of Ireland's longest rivers, draining a large catchment in the southeast. It flows through agricultural and urban areas before reaching the Celtic Sea. The river supports salmon, trout, and other freshwater species, and its estuary is important for migratory birds. Mortarstown WWTP's discharge must comply with EU water quality standards to prevent nutrient enrichment and protect this sensitive ecosystem.
Frequently asked questions
Mortarstown Waste Water Treatment Plant is located in County Laois, Ireland, near the town of Graiguecullen along the Barrow Way.
The plant serves approximately 39,043 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the River Barrow, which flows through southeastern Ireland to the Celtic Sea.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and may require tertiary treatment if the receiving waters are sensitive.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 people typically require secondary treatment. In sensitive areas, additional nutrient removal may be mandated.
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