Firefighters analyzed the Ternier stream in Neydens on Monday, at 5.30 pm, following the death of fish. Three kilometers from the farm, a farmer stored slurry. This causes aquatic pollution.
Monday's incident was attended by the mayor and the farmer.
The French biodiversity office plans to travel today. The owner has committed to doing all that is necessary to end this pollution.
The firefighters made sure that the pollutants were contained to their area.