Last Wednesday, October 26 at 22:22 hours Prospect Heights Fire District companies were dispatched to 4 Piper Lane for a fire alarm. As companies arrived smoke was seen coming from a closed loading dock door. A working fire upgrade was requested. A positive water supply was secured and a hose line lead out. Swift entry was made and companies found a dumpster fire controlled by the sprinkler system. Members rolled dumpster onto loading dock, vented smoke, and shut down riser after checking for extension. The next morning management had the system restored and all the businesses in the building reopened. No lost wages, No lost profits. EXCELLENT WORK by all our members!