Sec. 1. Any area may be established as a regional water, sewage, or solid waste district under this article for one (1) or more of the following purposes:
(1) To provide a water supply for domestic, industrial, and public use to users inside and outside the district.
(2) To provide for the collection, treatment, and disposal of sewage inside and outside the district.
(3) To provide for the collection, treatment, and disposal of solid waste and refuse inside and outside the district.