Tex. Water Code § 51.048: PURPOSES OF MASTER DISTRICT.

(a) A master district may be created to conduct preliminary surveys and to develop a plan for the control and use of the water of any given stream, so that the improvements on one part of a watershed will be mechanically and economically related to all other improvements on the stream or its watershed.

(b) A master district also may be created to enable districts to pool their resources when necessary to economically:

(1) make preliminary surveys;

(2) adopt a plan to coordinate the plants, improvements, and facilities of the several constituent districts;

(3) provide the improvements and facilities proposed to be constructed and furnished by the master district;

(4) provide improvements for the common benefit of the several districts;

(5) enable the districts jointly to make purchases; or

(6) maintain or operate works for the common benefit of the several districts.

Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. Aug. 30, 1971.