The contract includes a firm tranche and 5 optional tranche(s) designated as follows: TF: Hydraulic modeling and mapping of Potential Flooded Areas (Zip) on the upstream Ill hydrographic sector - largue.

To1: Calibration of the model following an observed flood.

To2 to To5: Simulation of an additional flood scenario and mapping of related Zip/Zich/Lic

the contract consists of a firm tranche and 5 optional tranches designated below: TF: Hydraulic modeling and mapping of Potential Flooded Areas (Zip) on the upstream Ill - largue hydrographic sector. To1: Calibration of the model following an observed flood. To2 to To5: Simulation of an additional flood scenario and mapping of related Zip/Zich/Lic