 The state of Puebla awarded a 30-year water and sanitation concession to the Mexican company Aguas de Mexico in 2013, and in 2015 the state of Veracruz created a mixed company following the model established in Saltillo.The efficiency and quality of water and sanitation services vary widely, to a large extent reflecting different levels of development across the country.On average, the level of non-revenue water in Mexico in 2011 was 38% according to IMTA and 47% according to Conagua, almost twice as high as for well-run utilities.