Access Hydrometric Data

Hydrometric Data from rivers, lakes and tidal locations across Ireland are collected by a number of public bodies. A full listing of registered hydrometric stations or locations where monitoring is undertaken is contained in The Register of Hydrometric Gauging Stations in Ireland as compiled by the Environmental Protection Agency (EPA).

Hydrometric Data collected at the hydrometric monitoring stations listed can generally be obtained directly from the operating body as referenced in the Register. Most of the organisations listed provide websites where the data can be freely viewed and downloaded subject to data usage disclaimers, and agreement with terms and conditions of use.

The Office of Public Works (OPW) operates a large number of hydrometric stations across the country. Websites providing access to real-time water level data, and to the complete OPW hydrometric archive are available via the webpage

The Environmental Protection Agency (EPA) operates a large number of hydrometric stations across the country on behalf of the Local Authorities. The EPA hydrometric archive is available from the website The EPA also operates a network of ground water level monitoring stations, click on for further information.

Waterways Ireland operates hydrometric stations located mainly on navigable channels (canals, rivers and lakes) and data are available from the website

The Marine Institute operates hydrometric stations predominantly at tidal locations and data from these stations are available from the website

The Electricity Supply Board (ESB) operates a small number of hydrometric stations predominantly at locations associated with hydroelectric power generation and data from these stations can be accessed directly from the ESB.

The Rivers Agency operates the surface water hydrometric network that monitors river flows and lake levels in Northern Ireland.  The Rivers Agency hydrometric archive can be accessed from the National River Flow Archive (NRFA), Northern Ireland region.  The Northern Ireland Environment Agency (NIEA) operates a network of groundwater level monitoring sites.  The National Groundwater Level Archive (NGLA) and NIEA provide further information on groundwater in Northern Ireland.

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