In any proceeding initiated under this chapter and chapter 21-35, the authority may, at any time before final judicial determination of the rights of the parties, file a declaration of taking, signed by the authority, declaring the extent of the subsurface property interest taken for the use of the authority.
The declaration of taking shall contain:
(1) A statement of the authority under which and the use for which the subsurface property interest is taken;(2) A description of the subsurface property interest taken sufficient for identification thereof;(3) A legal description of the subsurface property subject to or affected by the taking;(4) The names of the owners of the property or persons in interest in the subsurface property, and a description of the interest claimed by each, as are known;(5) A statement of the sum of money estimated by the authority to be just compensation for the subsurface property interest taken and damaged; and(6) A detailed appraisal upon which the amount of the authority's estimate is based.