(a) The district is composed of the territory described by Section 2 of the Act enacting this chapter, as that territory may have been modified under § 3905.107 or other law.
(b) The boundaries and field notes of the district contained in Section 2 of the Act enacting this chapter form a closure. A mistake in the field notes of the district contained in Section 2 of the Act enacting this chapter or in copying the field notes in the legislative process does not in any way affect the district’s:
(1) organization, existence, or validity; or
(2) legality or operation.