This project completes part of the total object relating to the construction of the Water Supply Networks of Karpathos Pigadia, consisting of a depressive transport pipeline of 2.4 km and a gravitational pipeline 370 m long, the complete construction of 7 new pump stations, the additional overstructure in 1 existing pumping station, the construction of the Wastewater Treatment Plant (OEL) the Pipe of Karpathos Sources and the construction of the underwater disposal project.