A district may adopt and enforce reasonable rules and regulations to:
(1) secure and maintain safe, sanitary, and adequate plumbing installations, connections, and appurtenances as subsidiary parts of its sanitary sewer system;
(2) preserve the sanitary condition of all water controlled by the district;
(3) prevent waste or the unauthorized use of water controlled by the district;
(4) regulate privileges on any land or any easement owned or controlled by the district; and
(5) provide and regulate a safe and adequate freshwater distribution system.
Official text of the Texas Water Code as published by the Texas Legislative Council.