Water quality

The sanitary criteria for water quality for human consumption in Spain are regulated via the Real Decree 03/2023

Access to SINAC

The National Information System for Water Consumption (SINAC) is a sanitary information system that collects data about the characteristics of supply and quality of water used for human consumption that is being supplied to the public in Spain. This system is currently supported by an ICT application via the internet. By selecting an area and supply zone you will be able to see what type of catchment there is, as well as the results of analysis carried out in the distribution network.
Click here to see the results of the analyses performed and published.

• 11/01/2023 - Real Decreto 3/2023, establishing the technical-sanitary criteria for drinking water quality.
• 16/12/2020 - Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption. Consolidated text