Lakes1. IntroductionEgypt, an arid country has a negative water balance. The supply of Nile River water is limited, which provides Egyptwith 55.5 BCM/yr of water each year from Lake Nasser (Paisley and Henshaw, 2013). Economic development andpopulation growth in Egypt continue to increase the demands for water. Meeting these demands, places increasing stresson Egypt’s water institutions to support the country’s need for food, urban, industrial and environmental water uses(Gohar and Ward, 2010). In summary, the actual water resources currently available for use in Egypt are 55.5 BCM/yrNile River, 1.3 BCM/yr effective rainfall on the northern strip of the Delta and 2 BCM/yr non-renewable groundwaterfor western desert and Sinai, while water requirements for different sectors are in the order of 79.5 BCM/yr. The gap