The object of the project is the construction of a sewerage network of gravitational and depressive pipelines and the sewage pumping stations of the settlement of Karavostamos of the Municipality of Ikaria to bring all the wastewater from the settlement to the site of the Wastewater Treatment Plant. Liquid urban waste water is the major pollution problem in the area. The proposed sewerage network and the EEL will protect the coastal environment of the region, which is the main attraction of tourism and a source of economic development.