Sanitation Works and Network Checks in the La Rochelle Agglomeration

Several interventions are planned in the coming weeks for the maintenance of wastewater and rainwater networks.

Aerial view of the sanitation network in Nieul-sur-Mer, Charente-Maritime.
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Aerial view of the sanitation network in Nieul-sur-Mer, Charente-Maritime.

The La Rochelle Agglomeration has announced a series of interventions on sanitation and rainwater networks in several towns within its territory, including Nieul-sur-Mer, Châtelaillon-Plage, Esnandes, Marsilly, and La Rochelle.

In Nieul-sur-Mer, works on the wastewater sanitation network will begin on October 5, 2026, for an estimated duration of 10 days, on rue de Maillezais. During this period, parking will be prohibited in the affected area, and waste collection will be adapted, with bins to be placed at the ends of the construction zone.
Smoke tests of the sanitation network are also planned in three towns. In Esnandes and Marsilly, these interventions will take place between September 28 and October 2. In Châtelaillon-Plage, they will occur between October 12 and 16. The smoke used is harmless to health and dissipates quickly.
In La Rochelle, a television inspection of the main rainwater network pipe is scheduled on rue Saint-Jean du Pérot during the nights of September 21-22, 22-23, 28-29, and 29-30, 2026. A camera truck will inspect the network, which may cause temporary noise disturbances.
Another smoke test is announced on rue de Brest in La Rochelle, on the afternoon of September 16, 2026. The smoke used is also harmless.
Furthermore, the water meter reading campaign for the second half of 2026 will take place in several municipalities, including Bourgneuf, Yves, Saint-Rogatien, Marsilly, Lagord, Montroy, Dompierre-sur-Mer, Vérines, and La Rochelle (with specific dates per district) between September and October.
Finally, water usage restrictions are in effect in Charente-Maritime due to an exceptional drought episode, placing the department in "Enhanced Alert" level. These measures concern watering, vehicle washing, facade cleaning, and pool filling, and apply until further notice.
Based on information from the official source: Communauté d'agglomération de La Rochelle (29/09/2026)