All uses authorized in this article shall be subject to the following conditions.
   (a)   Enclosures.  Any business, service, repair, processing, storage or display, whether principal or accessory, if not conducted wholly within an enclosed building, shall be enclosed by a solid wall or fence six feet high or a chain link fence at least six feet high with a six-foot planting buffer maintained in a healthy condition where such use abuts, adjoins or faces, either directly or across a street alley or other public open space, any residence district.
   (b)   Night operations. No building customarily used for night operations shall have any opening, other than stationary windows or fire exits within 100 feet of any residence district and no loading dock used in connection with such operation shall be located within 100 feet of any residence district.
(Ord. 2046, passed 4-11-1968; Ord. 2845, passed 7-26-1982)