199—10.11 (479) Inspections. This board shall from time to time examine the construction, maintenance and condition of pipelines, underground storage facilities and equipment used in connection with pipelines or facilities in the state of Iowa to determine if the same are unsafe or dangerous and whether they comply with the appropriate standards of pipeline safety. One or more members of this board, or one or more duly appointed representatives of the board may enter upon the premises of any pipeline company within the state of Iowa for the purpose of making the inspections.