Tex. Water Code § 11.135

(a) On approval of an application, the commission shall issue a permit to the applicant. The applicant's right to take and use water is limited to the extent and purposes stated in the permit.

(b) The permit shall be in writing and attested by the seal of the commission, and it shall contain substantially the following information:

(1) the name of the person to whom the permit is issued;

(2) the date the permit is issued;

(3) the date the original application was filed;

(4) the use or purpose for which the appropriation is to be made;

(5) the amount or volume of water authorized to be appropriated for each purpose; if use of the appropriated water is authorized for multiple purposes, the permit shall contain a special condition limiting the total amount of water that may actually be diverted for all of the purposes to the amount of water appropriated;

(6) a general description of the source of supply from which the appropriation is proposed to be made, including any alternative source of water that is not state water;

(7) the time within which construction or work must begin and the time within which it must be completed; and

(8) any other information the commission prescribes.

(c) If the appropriation is for irrigation, the commission shall also place in the permit a description and statement of the approximate area of the land to be irrigated.