Question 43034 — streams, ponds and lakes

Summary

Ms. Delphine Batho questions the Minister of Ecological Transition on the draft interdepartmental prefectural decree serving as water regulations for the structuring works of the wet marshes of Sèvre Niortaise, Mignon and Autizes. Since 1996, the State and the Union of Wet Marshes have decided on the principle of a single manager for all the works allowing the regulation of the hydraulic stages located between Niort and the Ocean of the Sèvre Niortaise, as well as the tributaries (Mignon and Autizes). Thus, article 1 of the interdepartmental decree of February 16, 2017 states that “The Interdepartmental Institution of the Sèvre Niortaise Basin (IIBSN) is the operator of all of these works, as owner or management agent”. The draft interdepartmental prefectural decree serving as water regulations for the structuring works of the wet marsh of la Sèvre niortaise, du Mignon and des Autizes, which was the subject of a public consultation from October 22, 2021 to November 14, 2021, aims to allow the Union des Marais Humées, owner of two works identified by the prefectural decree of 2017 (Porte de l'île dam and Maillé aqueduct dam), to ensure their management and thus put an end to to the single manager principle. Local stakeholders are opposed to this questioning which could lead to poor coordination between the different managers in the event of adjustment of levels during periods of flooding and drought. This situation could thus generate a poor assessment of flooding phenomena between the different stakeholders, or generate emptying of reaches depending on the priorities of the manager. The MP is opposed to calling into question single management works of the Sèvre Niortaise. She also urges him to indicate whether the Government intends to abandon this project in view of the legitimate concerns of local stakeholders.

Machine translation from French. The official text remains authoritative.

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