The importance of studying the Al-Rahimawi Basin comes from the fact, it provides an important water resource for all human uses, especially since a lot of human activities were centered on it. Administratively, the Wadi Al-Rahimawi basin is located in the Najaf Governorate, it is bounded on the northwest and north by the Khar Valley basin, from the east, the eyes of the lions, from the south and southwest, the basin of Wadi Abu Khamisat, from the west, the Al-Hajara region. It has an area of 111 km². The research problem was that the Al-Rahimawi basin suffers from a lack of water resources, it is one of the areas that fall within the dry and fluctuating rain region, led to be the environments that repel any human use, despite the appropriate geomorphic and hydrological capabilities. While the research hypothesis (At the Al-Rahimawi basin there were large quantities of water, it goes to waste without being used in various fields, as a result of the availability of suitable geomorphic and hydrological capabilities).