Scope of the project is to estimate the water demand for seven provinces including Istanbul up to year 2060 and by assessing the ground water and surface water potential of the water basins which can be used for water supply to these provinces to prepare a master plan covering technical, economical, environmental and legal aspects of proposed water supply scenarios. This study covers a population of 30 million people living in an area of 35.000m² and with a water demand of 3.000.000.000 m³/year