There is too little water for current and future demand for potable water to be met from local sources. At the same time, torrential rainfall during the rainy season results in frequent flooding that affects residents, houses and infrastructure. Moreover, growing water demand, overexploited local and neighbouring aquifers and basins, ageing infrastructure, lack of investment, artificial low tariffs and high operation costs, and the deterioration of water quality have taken the water system to the limits of its physical and financial operability. The largest body of water is the artificially created lake “Nabor Carrillo”, with a surface area of about 10 km2, the sixth-largest lake in Mexico (CONAGUA, 2014a).