Taourit-Oujda corridor (T.O.C.) is a geological entity of north-eastern Morocco with a total area of 4000 Km2. The drinking water supply in this arid region still faces challenges that meet a growing demand for a shortage of fresh water. This shortage is mainly due to the scarcity and irregularity of the precipitations, the overexploitation of the water resources, and the decrease of the capacity of storage dams that are the main source of drinking water supply in this area. This work aims at estimating deficit (to 2040) for drinking water provided by Machraa Hammadi dam and proposing favourable drilling sites to strengthen drinking water supply through the identification of groundwater resources that can be used in quantity and quality. To do this, a multi-criteria analysis (MCA) covering geological, hydrogeological and hydro-chemical aspects using the Geographical Information System (GIS) was carried out. This study shows that T.O.C. aquifer is more productive in the south-west of it, in the centre near the El Aioun municipality and in the north-east at the town of Sidi Bouhouria. According to Moroccan standards, defining the quality norms of surface waters, waters destined for irrigation, and of surface waters used for the production of drinking water, the groundwater in the center and north-east areas is also with good to medium overall quality groundwater.

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确保摩洛哥东北部的饮用水供应：以陶里尔特-乌季达走廊为例

陶里特-乌季达走廊（TOC）是摩洛哥东北部的一个地质实体，总面积为 4000 平方公里。这个干旱地区的饮用水供应仍然面临着满足日益增长的淡水短缺需求的挑战。这种短缺主要是由于降水稀少和不规律，水资源的过度开发，以及作为该地区饮用水供应主要来源的蓄水坝容量下降。这项工作旨在估计 Machraa Hammadi 大坝提供的饮用水短缺（到 2040 年），并提出有利的钻探地点，通过确定可在数量和质量上使用的地下水资源来加强饮用水供应。为此，多标准分析 (MCA) 涵盖了地质、使用地理信息系统（GIS）进行了水文地质和水化学方面的研究。这项研究表明，TOC 含水层在其西南部、El Aioun 市附近的中心和 Sidi Bouhouria 镇的东北部更具生产力。根据摩洛哥的标准，确定了地表水、灌溉用水和用于生产饮用水的地表水的质量标准，中部和东北地区的地下水也具有良好到中等的地下水总体质量。