(a) Public entities may create a public utility agency by concurrent ordinances.
(b) A public entity may join in the creation of a public utility agency under this subchapter only if, at the time the concurrent ordinance is adopted, the entity has the authority to engage in the collection, transportation, treatment, or disposal of sewage or the conservation, storage, transportation, treatment, or distribution of water. This subsection does not prohibit a public entity from disposing of a facility after creation of the agency.
(c) A public utility agency is a:
(1) separate agency;
(2) political subdivision of this state;
(3) political entity and corporate body; and
(4) retail public utility for the purposes of Chapter 13, Water Code.
(d) A public utility agency may not impose a tax but has all the other powers and obligations that are related to facilities and that are provided by law to a municipality that owns a facility, except as provided by Section 572.061.