Inventories of water users are a vital step in the management of water resources. And new technologies such as GIS, remote sensing and DBMS help to facilitate the collection, management, and exploitation of data collected during inventories. This study is being carried out as part of a project launched by the Loukkos Watershed Agency which aims to carry out inventories of water users in its area of action. For effective management of water resources, it is necessary to identify all water withdrawals for irrigation, industrial or drinking water purposes. This study enabled, on the one hand, to update the inventory of the main water samplers of the Oued Laou Basin which is part of the Lukkos Basin Agency intervention zone, and on the other hand, the development of a database of sampling points and their characteristics and a Web mapping application to facilitate the consultation of these data by the ABHL. Information control is a major issue for any organization at the operational, decision-making and strategic levels. GIS has made a significant contribution to databases as it provides, through geographic information, a unifying framework for data and powerful tools for interpreting, analyzing and representing this data.

The use of water resources is steadily increasing with respect to the population growth. This theory also applies in the Kingdom of Morocco specifically in the Sahel-Doukkala region and therefore requires special attention as the water resources are in limited quantity. For industrial, agricultural and domestic reasons, aquifers of this region are subjected to excessive pumping, resulting in environmental harms such as declining groundwater level, which considerably affects both its quality and quantity. The agency of Oued Oum Er R'bia watershed has therefore established a number of strategies for a proper management of those aquifers among which an artificial aquifer recharge to reduce this imbalance; preventing irreversible degradation. This paper is thus devoted to explore solutions that can help characterizing components of the hydrological system of the region in order to determine the potential areas of surface water for its possible remobilization. With an area of 7700 Km2, the semi-arid characteristics and the endoreism at certain location of the region, the geomorphological analysis from digital elevation model (DEM) and the modified equation of Beven-Kirkby index allowed us to locate useful wet and hydromorphic soils from their physical properties revealing remarkable traces of a regular water saturation.