Question 12891 — natural disasters

Summary

Ms. Nadine Lechon draws the attention of the Minister of the Interior to the situation in the commune of Chancelade (Dordogne), whose request for recognition of the state of natural disaster in respect of the 2022 drought was rejected, a decision confirmed by the administrative court of Bordeaux. This decision is based on the application of the national methodology based on the soil moisture index (SWI) modeled by Météo-France, a mesh size of 8 km × 8 km and a return duration threshold set at 25 years. For the year 2022, the return times observed for the mesh covering Chancelade remained below this threshold, although 106 disaster declarations were recorded in the municipality and neighboring municipalities, exposed to comparable clay soils and the same climatic conditions, obtained recognition. The Member therefore wishes question the Government on the robustness and adaptation of the system, in particular if the uniform threshold of 25 years applied in 2022 remains adapted to the evolution of drought risk in a context of climate change, even though the method has recently been revised; if the Government plans to refine the grid or provide an adjustment mechanism when the entirety of a municipality depends on a single calculation grid and, finally, if the loss experience actually observed locally and the geotechnical expertise produced by the communities can be more integrated into the assessment of the exceptional nature of the event. She asks him what developments could be considered so that municipalities like Chancelade, faced with proven and repeated disorders, can benefit from an evaluation fully adapted to their reality. territorial.

Machine translation from French. The official text remains authoritative.

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