(a) The authority is composed of the territory described by Section 2, Chapter 436, Acts of the 66th Legislature, Regular Session, 1979, as that territory may have been modified under:(1) this subchapter or its predecessor statute, Section 7, Chapter 436, Acts of the 66th Legislature, Regular Session, 1979;(2) Subchapter J, Chapter 49, Water Code; or(3) other law.(b) The boundaries of the authority form a closure. A mistake does not affect:(1) the authority's organization, existence, or validity;(2) the authority's right to issue any type of bond for a purpose for which the authority is created or to pay the principal of and interest on the bond;(3) the authority's right to impose a tax; or(4) the legality or operation of the authority, its bonds, or its governing body. Added by Acts 2015, 84th Leg., R.S., Ch. 855 (S.B. 1162), Sec. 1.07, eff. April 1, 2017.