Texas Special District Local Laws Code - SDLL § 8513.0310. General Water Supply Powers

(1) construct, acquire, equip, acquire storage rights at, operate, or maintain a dam or reservoir;

(2) construct, operate, maintain, or otherwise provide water supply lines, water purification, and water pumping systems and facilities;

(3) provide water supply for municipalities, including selling water and standby service to any person;

(4) provide water for irrigation of lands and the development of commercial and industrial enterprises;  and

(5) acquire storage capacity in any dam constructed or to be constructed by or with the assistance of this state or the United States from any person, this state, or the United States.