Tap water, quality water

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Drinking water of the highest quality

The World Health Organization and the European Union define safe drinking water as water that a person can drink every day for their whole life without any risk to their health.

To establish the quality required of tap water, the European Union, following WHO guidelines, sets the limits for components present in water, including pathogenic microorganisms and toxins, although many of these are harmless to the human body (some are even beneficial), whilst other are only harmful when present in large amounts.

The water supplied through the Antigua network has a low to medium saline content. It can be classified as having calcium bicarbonate. Average hardness values are 40-50 mg/l.


Our water has easily passed health authority controls, thanks to the application of state-of-the-art drinking water treatments and effective, continuous quality control of the water supply.

Tap water quality is the responsibility of:

  • The Ministry of Health and Consumer Affairs
  • The health authorities of the autonomous communities
  • Town councils
  • The supply companies
  • Owners of the indoor installations in their property