Tex. Water Code § 54.733

In the event any consolidating district has voted but unissued bonds payable in whole or in part from taxation and the consolidated district assumed the voted but unissued bonds and the consolidated district was authorized to levy taxes to pay for the bonds, then the consolidated district shall be authorized to issue the voted but unissued bonds in the name of the consolidated district and levy a uniform tax on all taxable property in the consolidated district to pay for the bonds.