The size of the agglomeration, the absence of a river and its situation in a basin situated at more than 2000 m. of altitude make the water supply one of the problems of Mexico. Thanks to considerables investments Mexico city has important quantités of water but must solve the problems of the decentralization of the industries which consume a lot of water in the same way the inegality between Federal District and the outskirts and between the rich and the poor.La taille de l 'agglomération , l'absence d'un fleuve et sa situation dans un bassin à plus de 2000 mètres d 'altitude font de l 'approvisionnemen en eau un des problèmes fondamentaux de Mexico. Grâce à des investissements considérables Mexico dispose d'importantes quantités d'eau mai...