Special to The Hays Daily News

At 10:12 a.m. Saturday, the Hays Fire Department, assisted by Hays Police Department and Ellis County EMS, responded to the Enersys Plant, 1 Enersys Road, for a building fire.

On arrival, firefighters found a fire burning in an outside steel hopper that is a part of the plant's dust collection and filtering system. The combustible filters that collect the dust were on fire, but the fire was confined inside the steel hopper.

Working cooperatively with Enersys staff, it was determined the fire was not threatening the plant itself. Because conventional firefighting methods might have caused a dust or smoke explosion or the release of hazardous waste, it was determined to allow the fire to burn itself out.

The most probable cause of the fire was sparks from plant maintenance work that entered the dust collection system, igniting the combustible filters.

Five fire trucks and 19 firefighters responded.

The last fire crew left the scene at 12:20 p.m.