Dubai uses world-class desalination plants to make seawater usable. The tap water you receive at your home, whether it’s at a rental apartment in Dubai or the villa you recently purchased, is actually desalinated sea water. Additionally, the pH level of tap water is maintained to ensure it is between 6.5 to 8.5, which is optimal for safe drinking water. DEWA also tests that the tap water is free of harmful heavy metals such as arsenic, mercury, and lead. Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also called tap water. Potable Water refers to water that is fit for human consumption. Learn its meaning, characteristics and different methods to make potable water, FAQ's.