Drinking tap water in Portugal is considered safe in all regions and the water meets all EU standards. Lisbon tap water is of a medium hardness, rich in minerals and has chlorine added during treatment. It can have a strong taste, so most Lisbon residents drink bottled water and use tap water for most everything else.
Can tourists drink the water in Madeira?
The tap water in Madeira conforms with all EU regulations and it is safe to drink. The water is treated with Chlorine and therefore may taste a little different.
What state has the best tap water in the world?
The United States boasts a diverse range of tap water quality across its states. According to data on water violations, some states stand out for their exceptional tap water. Hawaii has the best tap water with only two water quality violations. Following closely behind is the District of Columbia with seven violations.