Indiana Code Title 13. Environment § 13-26-1-2

(1) increase or add to the district's purposes or modify the district plan approved by the department;

(2) abandon or surrender all or part of a purpose or plan approved by the department;  or

(3) subject to IC 13-26-4-1, increase the number of persons serving on the board of trustees.

(1) approve;

(2) modify and approve;  or

(3) reject;