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Lakes

Learn more about the lakes monitoring programme of the EPA.

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Estuaries and coastal waters

Learn more about the marine monitoring programme of the EPA.

Latest publications in Freshwater & Marine

Water Quality in Ireland 2023 Indicators report lrg feature item
Water Quality in 2023

An Indicators Report

This report provides an update on the quality of water in Ireland's rivers, lakes, transitional and coastal waters and groundwater using information collected in 2023

The cover of the report 'Bathing Water Quality in Ireland 2023'
Bathing Water Quality in Ireland 2023

A report for the year 2023

The 2023 EPA Bathing Water report sets out bathing water quality at Ireland's designated bathing waters.

Water Quality Summary Report 2016-2021 Cover
Water Quality in Ireland 2016 – 2021

Summary Report

This report provides summary information on the status of our rivers, lakes, estuaries, coastal waters (known collectively as surface waters) and groundwaters. It is based on information collected over a 6-year period from 2016 to 2021 under Ireland’s national water quality monitoring programme from over 4,000 surface water bodies and 514 groundwater bodies.

Latest News and Press Releases

in: Freshwater and Marine
New updates to EPA tools for targeting agricultural measures to protect water quality

Date released: August 07, 2025

The Environmental Protection Agency (EPA) has today published updated evidence to further support the targeting of agricultural measures to protect and improve water quality.

EPA publishes full monitoring network results of nitrogen and phosphorus levels in Irish waters for 2024

Date released: July 02, 2025

The Environmental Protection Agency (EPA) has today published the full monitoring network results of the levels of nitrogen and phosphorus in Irish waters in 2024.

High standards achieved for Bathing Water quality in 2024, but challenges remain during heavy rainfall

Date released: May 07, 2025

The Environmental Protection Agency (EPA) has today published the Bathing Water Quality in Ireland report for 2024 which shows that water quality at most of Ireland’s bathing waters was of a high standard.