 Water from all the separate sources is added to the common distribution system.The Federal District also operates a water transmission line (the "Acueducto Periférico") that transports water from the Cutzamala System - entering the distribution system from the west - to the southern and eastern part of the district.The State of Mexico system has nearly 800 km of distribution lines and 32 storage tanks with a capacity of 440,000 cubic meters.