Tex. Water Code § 55.242: RULES AND REGULATIONS.

The board may make and adopt reasonable rules and regulations which are necessary

(1) to preserve the sanitary condition of water controlled by the district;

(2) to prevent waste or unauthorized use of water; and

(3) to regulate residence, boating, camping, and recreational and business privileges on any land or water owned or controlled by the district.

Acts 1971, 62nd Leg., p. 449, ch. 58, Sec. 1, eff. Aug. 30, 1971.