This Intellectual Service Contract Is Part Of The Preliminary Studies Program (Pep) Of The 4Th Papi Of The Lys Watershed, Of Which It Constitutes Action Sheet 5.11. It Includes The Carrying Out Of The Studies Necessary To Identify Particularly Vulnerable Assets In The Territory Of Cœur De Flandre Agglo, For Its Part Concerned By The Lys Watershed. It Will Mainly Consist Of: - Determining The Sectors Most Vulnerable To Flooding - Proposing A Management Strategy For These Sectors In The Short And Medium Term.