In accordance with the European Directive of 21 May 1991 on the treatment of waste water, adopted by Law 2006-1772 of 30 December 2006 known as the “Law on Water and Aquatic Environments”, the conclusions of the sanitation master plan, integrating the entire territory of Saint-Martin, and taking into account the outdated facilities of the current clean-up unit, its treatment capacity very clearly insufficient in view of the pollution flow to be treated, causing significant nuisance to residents and a deterioration of the natural environment, the EEASM decided to proceed with the construction of a new waste water treatment plant which will allow the treatment of the effluent in the neighbourhood. The operation was scheduled at CRUP on 30 September 2016. The Attribution Agreement was signed on 24 October 20016.