No person shall place, leave, dump or permit to accumulate any garbage or rubbish in or upon any building, structure or place so that the same shall afford food and/or harborage for rodents. No person shall accumulate or permit the accumulation on any place, premises or on any open lot any lumber, building material, boxes, paper, rags, excess or dense vegetation, or any material that may be permitted to remain thereon that may serve as a rodent harborage, unless the same shall be placed on open racks that are elevated not less than eighteen inches above the ground and evenly piled or stacked, or otherwise made reasonably unsuitable as a rodent harborage by such manner as may be approved by the chief of environmental health. (Ord. 4883-NS § 1 Exhibit A, Ch. 5 Art. 3 § 5, 1976)