(a) The district is:
(1) created to serve a public use and benefit; and
(2) essential to the accomplishment of the preservation and conservation of this state's natural resources.
(b) All land in the district will benefit from the district.
(c) This chapter addresses a subject in which this state and the general public are interested.
(d) The district performs an essential public function under the Texas Constitution in carrying out the purposes of this chapter because the accomplishment of those purposes is for the benefit of the people of this state and the improvement of their properties and the industries.