It shall be the duty of all owners of real estate within the city to keep the sidewalks adjoining their real estate clear and free from grass; weeds shall be cut and removed therefrom at such times as the council shall direct; provided, that if any owner of real estate within the city shall neglect or refuse to cut the grass and weeds from the sidewalks adjoining his property when directed to do so or fail otherwise to keep such sidewalks clean and sanitary, the chief of police is authorized to employ such labor as may be necessary to clear and clean the sidewalks, and the charge for such work shall be due and payable by such property owner of the property, to be collected as municipal tax. (Ord. O-10-93 § 4 (part), 1994; prior code § 3-1-2)