All signs shall be properly maintained. Exposed surfaces shall be clean and painted if paint is required. Defective parts shall be replaced. The ground space within a radius of ten feet (10') from the base of any ground sign shall be kept free and clear of all weeds, rubbish and flammable material. The zoning administrator is empowered to order the repair or removal of any sign which is defective, damaged or substantially deteriorated as more particularly specified in chapter 7 of this title. (Ord. 2009-17, 4-21-2009)