A 2015 campaign to identify soil materials revealed a large heterogeneity of sub soils, most notably those with micro-cavities that will necessitate draining as well as consolidation techniques by using mandrels. The sediments in the port, partly impacted by hydrocarbons, will have to be filtered and sent to an adapted treatment facility.
Fauna and Flora Inventories
On land, regular visits from ecologists since the beginning of 2016 have allowed updates on fauna and flora data.
Year after year, the plant habitats are being closed over, mostly due to the development of exogenous species such as nettles, thistles, and other burdocks.
The usually-rich procession of birds are evolving in the same direction, noted by the lack of certain observed species over the last few years.