Gasoline pumps shall be set back no less than eighteen (18) feet from any street line to which the pump island is vertical, and twelve (12) feet from any street line to which the pump island is parallel, and not less than ten (10) feet from any residential or agricultural district boundary line. If the pump island is set at an angle on the property, it shall be so located that the automobiles stopped for service will not extend over the property line. (Ord. 111 §1, amended, 1985; Prior code §12-101-36)