The owners of all houses, buildings, or properties used for human occupancy, employment, recreation, or other purposes situated within the city and abutting on any street, alley, or right-of-way in which there is now located or may in the future be located a public sanitary sewer of the city are required, at their expense, to install suitable toilet facilities therein, and to connect those facilities directly with the proper public sewer, in accordance with applicable state and county regulations, within 90 days after date of official notice to do so.
