Within a reasonable time after a voluntary boundary agreement is adopted by the affected localities, each affected locality shall petition the circuit court for one of the affected localities to approve the boundary agreement. The petition shall set forth the facts pertaining to the desire to relocate or change the boundary line between the localities, and the petition shall include or have attached to it either (i) a plat depicting the change in the boundaries of the localities as agreed; (ii) a metes and bounds description of the new boundary line as agreed upon by the two localities; or (iii) a Geographic Information System (GIS) map depicting the change in the boundaries of the localities as agreed, having been established by Virginia State Plane Coordinates System, South Zone or North Zone, as applicable, meeting National Geodetic Survey standards. If the court finds that the procedures required by § 15.2-3107 have been complied with and that the petition is otherwise in proper order, the court shall enter an appropriate order establishing the new boundary. The order shall include a plat depicting the change in the boundaries of the locality, a metes and bounds description of the new boundary line of the locality, or a GIS map depicting the change in the boundaries of the localities that includes the Virginia State Plane, South Zone or North Zone coordinates, as applicable, and that order shall be entered in the land records of the court and indexed in the names of the localities which were involved. Costs shall be awarded as the court may determine. Whenever such an order is entered, a certified copy of the order shall be sent to the Secretary of the Commonwealth by the clerk of the court.