Indiana Code Title 14. Natural and Cultural Resources § 14-33-20-12

Sec. 12. (a) IC 14-33-4-2 does not apply to the addition of territory to a district in any county for the purpose of supplying water to additional users outside the territorial boundaries of the district.  The commission has exclusive jurisdiction over the granting to a district of territorial authority to serve additional water users.

(b) For the purposes of:

the commission shall recoup its expenses under IC 8-1-2-70.  For purposes of this subsection, a district that has the purpose of water supply and that operates under this chapter is considered a municipal utility.