(a) If the department has given two weeks' written notice of intent to inspect a dam or reservoir and the owner refuses to allow the inspection, the department may seek a search warrant to allow the inspection. If the department has been refused inspection of drawings, operational records, or other information concerning a dam or reservoir, the department may seek an administrative subpoena compelling production of the drawings, operational records, or other information.
(b) If the department has reason to believe that a dam or reservoir may be unsafe or presents an imminent threat to life or property, the department may enter the dam or reservoir premises without notice.