The project concerns the implementation of two (2) measures for the protection of water intended for drinking on the island of Samos in compliance with the requirements of European Directive 2000/60/EC.With the preparation of the Study entitled: “Study of the General Water Plan (Masterplan) of Samos” is achieved to study and record rational, efficient and sustainable ways and methodologies of management of the water system of D. Samos, aiming at the quantitatively reliable, quality and environmentally safe, and affordable coverage of water demand in the area of responsibility of the Municipality of Samos, through the appropriate utilisation of water resources available to meet this demand. In particular, water safety plans ensure: minimise the presence of contaminants in drinking water from the source, the proper treatment of water in order to be suitable for drinking, the proper distribution to water networks, regardless of the size of these networks. The above measures contribute to the maintenance and improvement of water reserve, as well as to the upgrading of the quality of drinking water, resulting in the improvement of the quality of life of the residents of the Municipality of Samos.