In acting under Section 8501.155, the authority may:
(1) through practical means, provide for the control and coordination of the regulation of the water of the Neches River and its tributaries;
(2) by adequate organization and administration, provide for preserving the equitable rights of the people of different sections of the watershed area in the beneficial use of the water of the Neches River and its tributaries;
(3) store, control, and conserve the water of the Neches River and its tributaries inside or outside the authority and prevent the escape of that water without the maximum of public service;
(4) equitably distribute the water of the Neches River and its tributaries to meet the regional potential requirements for all uses, including domestic, manufacturing, and irrigation uses; and
(5) use controlled and conserved floodwater and storm water for any purpose that results in the performance of a useful service authorized by the constitution of this state.