Trash collection and recycling areas, service and storage areas, mechanical equipment and loading docks shall be screened on all sides so that no portion of such areas are visible from the adjacent public streets or alleys and adjacent properties. Screening shall have a minimum height of eight feet (8') and may include accessory buildings, shrubbery and plantings, decorative walls, solid fences, screen panels, doors, topographic changes, buildings, or any combination of the above. (Ord. 21-21: Ord. 07-36 § 2)