Tex. Loc. Gov't Code § 382.101
(a) A county operating under this chapter has the powers and duties of:
(c) A county may not delegate to a district the powers and duties of a road district or the power to provide water, wastewater, or drainage facilities under this section unless both the municipality and county consent by resolution.
Transferred from Local Government Code, Subchapter C, Chapter 372 and amended by Acts 2009, 81st Leg., R.S., Ch. 87 (S.B. 1969), Sec. 15.009, eff. September 1, 2009.