If the Construction Subcode Official, upon inspection, determines that any fence or wall or portion of any fence or wall is not being maintained in a safe, sound and upright condition, he shall notify the owner of such fence, in writing, of his findings and state briefly the reasons for such findings and order such fence or wall or portion of fence or wall repaired or removed within 10 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 section.