​​​​Groundwater is important as a source of drinking water, and it supports river flows, lake levels and ecosystems. It contains natural substances dissolved from the soils and rocks that it flows through, and can also be contaminated by human actions on the land surface.

As a clean, but vulnerable, resource, groundwater needs to be understood, managed and protected. We provide advice and maps to members of the public, consultancies and public bodies about groundwater quality, quantity and distribution.

​​​​​​​This section provides information about our ongoing activities helping us all understanding Ireland's groundwater and karst, how we support Ireland's environment along with your groundwater questions answered.​​​​

​Explore the data and maps compiled by the Groundwater programme.

​Explore the research initiatives taking place in the Groundwater programme. Survey Ireland releases groundwater flooding maps and live turlough data serviceLaunch of Geological Survey Ireland Groundwater Flood Mapping and Hydrometric Web Service 14/07/2020 23:00:00 showcasing projects online at EGU 2020The annual European Geological Union (EGU) General Assembly usually brings 16,000 attendees to Vienna for one of the largest geoscience meetings in the world. This year it moved online for EGU2020: Sharing Geoscience Online from 4 – 8 May, Geological Survey Ireland participated in a number of sessions, listed below with links to abstracts06/05/2020 23:00:00 Project: Monitoring, Modelling and Mapping Karst Groundwater Flooding in Ireland02/07/2020 23:00:00 Research Coordination Group 2019 Annual Report28/06/2020 23:00:00