 The National Water Commission also supplies bulk water to the Federal District and to parts of Mexico state through the Cutzamala and Lerma systems.In Mexico State, the State Water Commission buys bulk water from Conagua, transmits it through its own bulk water infrastructure and sells it on to 57 municipalities with 4.1 million inhabitants.The State Water Commission also monitors water quality, provides technical assistance to municipalities in water disinfection and sewer cleaning, operates wastewater pumping stations and five wastewater treatment plants, empties septic tanks and provides water in tankers in emergency situations.