The project concerns the implementation of one (1) measure, which is included in the Measures Programme of the approved River Basin Management Plan of the Aegean Islands Water District (GR 14). This measure belongs to the Programme’s Group II of Basic Measures and in particular to the Group of Measures OM03 “Measures for the Protection of Water intended for drinking” and is the following:The General Water Plan (Masterplan) of the I.H.A. N. Chios Water Plan, which will concern the entire Municipality of Chios will include:1.Details from which the water supply system will be identified, the water resources that will cover the water supply needs of Chios in the medium and long term.