The purpose of this action is to direct the discharges of waste water from each of the municipalities of Arriate, Jimera de Libar and Cortes de la Frontera (and its hamdanía of El Colmenar), located in the Guadiaro river basin, towards new WWTPs, giving them an adequate treatment for their purification, and thus pouring the purified waters into adjacent public channels, in compliance with Water Protection Directive 91/271/EEC. The actions are as follows: — Construction in Arriate of a new WWTP and driving from the current point of discharge to this one. —In Jimera de Líbar, grouping of discharges from the town and its districts for the transport of its wastewater to a new WWTP. —In cuts of the Border, construction of two WWTP, one for Cortes de la Frontera, Cañada del Real, Tesoro and Las Vegas, and another for El Colmenar (pedony 20 km), and their respective collectors from the current dumping points. They also include pumps, caskets and wells for optimal operation.