The prefecture of Hautes-Pyrénées issued an order, dated September 30, 2026, establishing an enhanced alert situation for the Gaves basin. This measure temporarily regulates surface water and accompanying groundwater withdrawals.
This decision follows the observation of reduced flow rates in the Gave de Pau and the reaching of the enhanced alert threshold, as defined by the interdepartmental framework order. The need to maintain a minimum flow for public health and the protection of fish populations was emphasized.
Prefectural Order No. 65-2026-09-30-00001 repeals and replaces the previous order from July 22, 2026, which had placed the sector under a vigilance status. It calls for necessary solidarity among water users.




