Join Heil Environmental and the Mayor of Chattanooga in honoring local sanitation workers and the great work they do to keep our communities clean and safe. Free to the public. Live music, food, beverages, garbage truck operation, and more! All kids get a goodie bag, can “Truck or Treat” on Market St. , meet zoo animals, and can get their picture taken with Shrek in front of a vintage garbage truck. Learn important safety tips for staying safe around garbage trucks and other sanitation equipment. Sanitation workers who bring a valid work ID to the event will receive a special gift. Costumes encouraged!