Recharging the Freshwater Coastal Aquifer of Sidi Kirayr Area Using Sustainable Infiltration Trenches

Egypt is considered an arid country and depends mainly on the Nile River groundwater reservoirs to supply water for drinking various uses. The northwestern coastal zone one of regions that rely heavily rainwater irrigation. As a result changes in climate rise sea level, increase seawater intrusion growing. Furthermore, exploitation increased pumping some wells installed this area have negative impact amount region’s subterranean reservoirs. One approaches suggested managing freshwater lenses floating top from saltwater region recharge aquifer with fresh water. This can be done either by injection or use mounds, i.e., infiltration trenches. Due expected higher cost operation wells, it interesting study through mounds. Studies been carried out past Sidi Kirayr terms recording table levels rainfall before after rainy season. However, we propose using environmentally sustainable economic solution underground instead letting run off into sea. In respect, trench designed area. Two design types are proposed, geometrical calculations appropriate dimensions. trenches north south asphalt road Kirayr, providing recharged surplus when being available other sources.