A fire at a Bethel mulching facility was extinguished yesterday.  Firefighters responded to a  report of a payloader fire on Wooster Street and found the machine fully involved, unoccupied.  Crews extinguished the flames and used hazardous materials techniques to contain the spill of engine fluids to prevent waterway contamination.  There were no injuries.  The scene was turned over to the state Department of Energy and Environmental Protection for hazmat mitigation.  Bethel Police also responded to the scene.  The fire marshal’s office is investigating.