The works to be carried out are located in the municipality of Montsinéry – Tonnégrande at the site of the runway Risquetout Ouest. The access to the runway Riskall West is from the departmental road n°5. The CACL proposes to create, on the land rights of the municipalities of Montsinéry-Tonnégrande and Macouria, a drinking water supply network on the first 4.8 kilometres of track. As part of this extension, special connections will be taken into account up to the parcel limit.