The owner(s) of all houses, buildings or properties used for human occupancy, employment, recreation or other purposes, situated within the district 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 or combined sewer of the Vernal City sewer system is required at the owner(s) expense to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer in accordance with the provisions of this chapter, within sixty (60) days after date of official notice to do so; provided, that the public sewer is within three hundred (300) feet of the property line. (Ord. 79-10, Art II § 4)