Drinking water quality

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Suppliers of drinking water must ensure that the drinking water they supply is wholesome and clean.  Water, which is wholesome and clean is defined as water that is free from any micro-organisms and parasites and from any substances, which in numbers or concentrations constitute a potential danger to human health.

Monitoring of water supplies

In Ireland, suppliers of drinking water are responsible for monitoring and analysing supplies to ensure they meet the quality standards set out in the European Union (Drinking Water) Regulations 2014 and the European Union (Radioactive Substances in Drinking Water) Regulations 2016. For public water supplies, Irish Water publishes water quality results on its website.

Suppliers send the results of monitoring and analysis to the Environmental Protection Agency (EPA). Each year, the EPA publishes a Drinking Water Quality Report based on this data. It also provides guidance on the implementation of drinking water legislation and carries out audits on drinking water operations.

You can find the most recent drinking water report or find out more about the EPA on the EPA website

Where can I find more information?

Elsewhere on our website, you can find out about lead in drinking water and private wells.

If you need further information on our department’s policy on drinking water, or how we implement the European Drinking Water Directive, please contact us in the water quality section by email at waterquality@housing.gov.ie or by phone at LoCall 1890 20 20 21 or +353 (0)1 888 2000.

The rates charged for the use of 1890 (LoCall) numbers may vary among different service providers.