Tex. Water Code § 13.512

Any eligible city is authorized to enter into privatization contracts if such action is recommended by the board of utility trustees and authorized by the governing body of the eligible city pursuant to an ordinance. Any privatization contract entered into prior to the effective date of this Act is validated, ratified, and approved. Each eligible city shall file a copy of its privatization contract with the utility commission, for information purposes only, within 60 days of execution or the effective date of this Act, whichever is later.