The project concerns the construction of integrated sewage collection and transport networks in the settlements of Neohoropoulos and Stavraki (settlements within the Lagatsi stream basin that ends at Lake Pamvotida).The construction of gravitational transport pipelines with a total length of 21,5 kmm, 2,35 km of depressive pipelines and 2 pumping stations of waste (R/S B3: Lower Marbles and A/S B4: Neochoropoulo), through which the network of this project will be integrated into the sewerage network of the wider area (Kato Marmara, Tsiflicopoulos) The final recipient of the waste water is the existing Wastewater Treatment Plant (EEL) of Ioannina, which is appropriately extended to meet the additional needs, through the operation with MIS 5007720 funded by YMEPEREA 2014-2020. The scope of the project includes the construction of the required private connections.