(a) The commission shall hear and determine the petition to create a district to exercise the powers and functions provided in § 51.331 of this code.
(b) The commission shall hear and determine the petition under the applicable provisions of Sections 51.027-51.031 of this code.

(c) The executive director shall render technical aid concerning the petition and plans of the district.
(d) Nothing in this section impairs the right of the commissioners court to grant a petition under the provisions of § 51.021 of this code relating to a district to be located wholly in one county if the district will not have the powers provided in § 51.331 of this code.