The department shall approve the map, with changes (if applicable), at the public hearing conducted under subsection (b). The department shall record the approval and a copy of the approved map in the office of the recorder of each county in which land to be acquired for the addition is located.
the property not more than one hundred eighty (180) days after responding under this subsection. If the department does not purchase the property or acquire the property by eminent domain within one hundred eighty (180) days after responding under this subsection, the department may subsequently acquire the property through the exercise of the right of eminent domain under IC 32-24.
However, if the property is agricultural land, the fair market value shall be determined under IC 32-24-1.
IC 8-23-5-9