The project includes the construction of sewage collection networks of the settlements of Sivota, Plataria, Perdika and Arilla, their transportation and treatment from the expansion of ESL Igoumenitsa and their disposal. In more detail the project concerns: (a) the construction of the sewerage system in the city of Sivota with a total length of approximately 21,05 km (length of gravity and depressants) and two waste pumping stations; (c) the construction of the sewer network in the city of Plataria with a total length of approximately 10,87 km (longitude of gravity and depressants) and the construction of the approx.  “Archaeological WORKS” It concerns the archaeological work that will be required during the construction of the project. Mainly the monitoring of the work of the project due to the carrying out of linear excavations in a large part of the settlements for the construction of the network, but also outside them along the sewage pipeline to EEL and the site of E.EL.  “electricity of pumping stations and installation of waste water treatment”References to the cost of connecting the E.E.L. and pump stations to HEDNO.Subproject 4: “ENAL ANCIENT PROVISIONS” refers to the conduction of an autopsy prior to the installation of the underwater pipeline.