It shall be unlawful for any person to place for collection in any container any substance or materials defined herein as "hazardous"; provided, that nothing herein shall prohibit an owner from personally removing or causing the removal of same by duly licensed collectors. Ashes, when placed for collection, shall be cooled and free from any fire, live coals or other substances which may ignite. Animal and bird droppings, soot, feathers, sawdust and excelsior shall be securely wrapped before being stored in containers. (Ord. 974, 3-14-90)