If the Construction Official, upon inspection, determines that any fence or wall or portion of any fence or wall is not being maintained in a safe, sound, upright condition, he shall notify the owner of such fence, in writing, of his findings and order such fence or wall or portion of such fence or wall repaired or removed within 30 days of the date of the written notice. Each day that the person fails to obey the order referred to above shall constitute a separate violation of this order.