The coastal aquifer of Saïdia, located in northeast Morocco, occupies an area of around 30 km2. It is limited to the west by the river Kiss and to the east by the river Moulouya. In the south, the Ouled Mansour hills bound the coastal plain, while the northern boundary is the Mediterranean Sea. The aquifer is made up of a sequence of alluvial and beach deposits,composed of fine to medium sands with remains of shells. The aquifer is of local relevance its waters being used mainly for irrigation, since its high salinity does not allow for other uses.