The project concerns the construction of the internal networks and the sewage pumping stations of the settlements of Vlacherna Grammenitsa Eleousa Glykorizou Limini and Agia Triada Keramata as well as the pipelines for the transport of all the sewage of the settlements to the existing waste water treatment plant of the city of Arta.The network to be constructed will be of a total length of 4091402 m of which 26880 m concern a gravitational network and 1403402 m a depressive network.