The location of any garbage, bottles, debris, or waste material found upon any public property or upon private property not owned by the person identified as the owner of the garbage, bottles, debris or waste material, except as provided in CCC 19.20.010 or the location of objects upon any public highways situated in Clallam County shall be considered prima facie evidence of its having been illegally deposited upon said public or private property or public highway by the said identified owner thereof.