Mapping of watercourses under GAEC, NTAs and Water Police for 2022

The government instruction of 3 June 2015 requires the State services to carry out a mapping of rivers in each department to facilitate the proper implementation of the water law as well as a guide to the maintenance of rivers. In the Marne, to avoid multiplying cartographic repositories, the watercourse map reference is unique for: — the ZNTs — GAEC — watercourses water police The JDD “MAA_June_2021” was built from the hydrographic layer of the Topo BD and based on the field findings made by the DDT de la Marne and the French Office for Biodiversity since 2017. The ‘TYPE_EC’ field makes it possible to characterise the nature of the flow. This dataset “MAA_June_2021” corresponds to the flows qualified as rivers under good conditions agri-environmental (GAEC)