Pollution
Humain
Environnement
Economique

Fire broke out at 4 pm in the vicinity of an auger between 2 sawdust silos (630 m³ and 200 m³, respectively) inside a woodworking plant operating with a permit. The silos were cooled by employees using 2 fire hose cabinets, while fire-fighters deployed 2 water hoses. Plant production was shut down. After conducting measurements with a thermal camera, first responders decided to drain the silos. At 5:30 pm, the plant was evacuated (15 employees) along with nearby homes. Drainage continued into the next day. A straw dam was installed to filter runoff water. At 1 am, all hot spots had been extinguished in the small silo. The first response crew remained on-site through the next day, until all hot spots had disappeared in the large silo.

It took over a week to drain the large tank. The wood chips emptied were handled like waste, placed into bins and picked up by a specialist firm. The auger-driven silo feed system was repaired on 29 August. The system underwent a thorough cleaning and the bearings were replaced. After disassembly, it appeared that 4 bearings had worn out prematurely. This wear caused metal-on-metal friction followed by heating that triggered the fire. Such wear had been initiated by a poor alignment of parts during a maintenance task. Upon investigation, the subcontracted technician admitted to lacking sufficient time to verify alignment at the end of the assembly phase since the basket was no longer available.