Figure 3: Different aspects of water supply in three typical Lebanese cities including the capital Beirut. It is obvious that water supply form the formal water sector does not exceed the 50% of water demand in all cities. While private well have a major role in this respect. Also water sold from private tanks contributes in considerable portion, notably in Beirut. Besides, the collected water by different aspects, mainly mountain lakes for harvesting, and the rural areas such as in Hasroun.