When a public sanitary sewer is not available under the provisions of Section 95.05, every building wherein persons reside, congregate or are employed shall be provided with an approved on-site wastewater treatment and disposal system complying with the provisions of this chapter. Upon the effective date of this Code of Ordinances, any person that sells a home which utilizes a private septic system or on-site wastewater treatment and disposal system must install a building sewer connecting the property to the public sewer system.
(IAC, 567-69.1[3])