Οδηγία πλαίσιο για τα ύδατα 2000/60 / ΕΚ
https://www.eea.europa.eu/themes/water
https://ec.europa.eu/environment/water/index_en.htm
https://ec.europa.eu/environment/basics/green-economy/water-resources/index_en.htm
https://ec.europa.eu/environment/marine/index_en.htm
