The study area is located in a hyper arid area in the Western Egyptian Desert, which represents a massive agricultural project where irrigation water is extracted from the Nubian sandstone aquifer. This study focuses on the hydrogeochemical processes and its impact on the quality of the groundwater aquifer. Based on the geomorphology, the study area includes five geomorphological units, Wadi Kurkur bediplain, Aswan High Dam Lake, the Nile Valley, the West Dungul plain, and basement outcrops. According to the geology, the study area is distinguished by sedimentary cover ranging in age from Upper Jurassic to Quaternary. Regarding the hydrogeology of the study area, the Nubian sandstone aquifer is the main aquifer in the study area, which it is represented by 24 groundwater samples plus one sample from the stem of the Lake Nasser. All samples were collected, analyzed, and interpreted. Groundwater salinity classification shows that all the groundwater samples are fresh water types, except one sample considered brackish water type. The pH values of the selected groundwater samples vary from 5.8 in the center to 7.6 in the northern side, with a median value of 7.3. The relationship between salinity content and the other ions shows a strong correlation between the values of Ca