Aguas Tratadas del Valle de México S.A. de C.V. (ATVM), a consortium made up of Spanish Acciona Agua, Mexico's water infrastructure firm Atlatec, infrastructure solutions company ICA and construction firm IDEAL, is responsible for the design, execution, installation and testing of the Atotonilco wastewater treatment plant, located in Hidalgo state, running through 2035. Atotonilco will become the world's largest treatment plant to be built in one single phase. The plant will have a maximum process capacity of 50m3/s and will treat roughly 60% of wastewater from Mexico's Federal District and suburbs, accounting for waste produced by 12.6 million people. Treated water will then be supplied to farmers in the Mezquital Valley, benefiting 700,000 people. The plant will be able to generate 70% of power necessary for its own operation, by converting biogas (methane) to energy. ATVM is based in Mexico City.