Indiana Code Title 36. Local Government § 36-9-25-7

Sec. 7. (a) This section applies to cities in a county that is listed in section 3(b)(3) of this chapter.  However, subsections (b) and (c) of this section also apply to municipalities that adopt this chapter by ordinance under section 1(a) of this chapter.

(b) This chapter does not affect the enabling ordinances, the duties of the municipality, or the rights of bondholders with regard to sewage works revenue bonds or other outstanding revenue bonds issued before this chapter was adopted by ordinance.

(c) Adoption of this chapter by ordinance does not affect the system of fees for sewage treatment.  All revenue derived from fees shall be applied only to the following purposes:

(d) The ordinance adopting this chapter must specify that the district initially includes all territory within the corporate boundaries of the city, including any territory, addition, platted subdivision, or unplatted land lying outside the corporate boundaries of the city that has been taken into or has been connected with the public sanitation system of the city in accordance with another statute if the sewage or drainage of that area discharges into or through the sewage system of the city.