The Grand Maritime Port of Martinique wishes to strengthen its water storage capacity. This investment concerns the hydrobase and the cutting edge of quarries and includes: — the installation of a pressurised water network connected to the counting chambers on the ODISSY public network, separate from the drinking water supply network of the sheds and buildings, to strengthen the external fire defence in the light of new activities in the hydrobase sector. — the creation of 3 seawater suction areas on a dockside for the SDIS