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Inistioge Water Supply Scheme

Water Supply Project

Uisce Éireann has invested over €10 million to provide a clean and safe drinking water source to benefit the people of Inistioge and Thomastown, Co. Kilkenny.

Uisce Éireann, working in partnership with Kilkenny County Council, has completed works to improve the quality of water for the Inistioge and Thomastown Water Supply Schemes, Co. Kilkenny. This investment will benefit over 4,000 people across Inistioge and Thomastown, ensuring the delivery of a clean, safe and more reliable drinking water source. Ward and Burke Construction Limited has completed these works on behalf of Uisce Éireann.

The Inistioge Water Supply Scheme was previously served by upland peaty surface water. The water treatment process at the plant was inadequate due to the formation of elevated concentrations of Trihalomethanes (THMs) above the drinking water standards. This project extended the Thomastown Water Supply Scheme to Inistioge through the construction of new water mains, removing the vulnerable water source in Inistioge, whilst also improving treatment facilities and storage facilities for Thomastown and Inistioge.

€10 million

What is involved?

  • Over 17 kilometres of new trunk and rising water main linking the Inistioge water supply with the Thomastown Water Supply Scheme
  • An additional ground water supply at Thomastown
  • A new treated storage facilities in the network at existing Grennan Water Treatment Plant at Thomastown and at Kilmacshane, Inistioge
  • An upgrade to the treatment facility at Thomastown
  • A new booster pumping station at Kilcross and Woodstock in Inistioge


  • Improve drinking water quality and quantity
  • Ensure the delivery of safe drinking water to residents and businesses in Inistioge and the surrounding area
  • Reduce disruptions to the drinking water supply
  • Improve security of the drinking water supply

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