Texas Local Government Code - LOC GOV'T § 552.063. Municipal Authority

(a) The municipality may improve a water works system or sanitary sewer system within the municipal boundaries by constructing, extending, enlarging, or reconstructing the system.

(b) The governing body of the municipality may determine the need for improvements, may order the construction of the necessary improvements, and may contract for the improvements.

(c) The governing body may act under this subchapter through resolution, motion, order, or ordinance unless an ordinance is specifically required. The governing body may adopt, by resolution or ordinance, any rules appropriate to the exercise of its powers under this subchapter, including rules relating to notice and hearing under this subchapter.

(d) The governing body may not assess a special tax or assessment against a railway, street railway, or interurban right-of-way to defray a portion of the cost of the improvements to the municipal water or sanitary sewer system.

(e) This subchapter does not affect the law of this state relating to the duty of a municipality to furnish water or sewer service in its proprietary capacity.