495—33.11 (17A,97B,ExecOrd11) Voiding or cancellation. A waiver is void if the material facts upon which the petition is based are not true or if material facts have been withheld or omitted. The agency may at any time cancel a waiver upon appropriate notice and hearing if the agency finds that the facts as stated in the request are not true, material facts have been withheld or omitted, the alternative means of compliance provided in the waiver have failed to achieve the objectives of the statute, or the petitioner has failed to comply with conditions set forth in the order.