(a) The district is composed of the territory described by Section 1, Chapter 1384, Acts of the 77th Legislature, Regular Session, 2001, enacting former Section 376.454, Local Government Code, as that territory may have been modified under:
(1) § 3816.107 or its predecessor statute, former Section 376.466, Local Government Code, as added by Chapter 1384, Acts of the 77th Legislature, Regular Session, 2001;
(2) Subchapter J, Chapter 49, Water Code; or
(3) other law.
(b) The boundaries and field notes of the district contained in Section 1, Chapter 1384, Acts of the 77th Legislature, Regular Session, 2001, enacting former Section 376.454, Local Government Code, form a closure. A mistake in the field notes or in copying the field notes in the legislative process does not affect the district’s:
(1) organization, existence, or validity;
(2) right to issue any type of bond or other obligation for a purpose for which the district is created or to pay the principal of and interest on the bond;
(3) right to impose or collect an assessment or tax; or
(4) legality or operation.