Grounds for Permit Suspension or Revocation. The Department may suspend or revoke a Unified Nontidal Wetland Permit, after written notice to the permittee, if the Department determines that any of the following has occurred: The permittee has failed to post the bond required under Section 32-232(b); The permittee has failed to comply with the requirements of an administrative action or order under this Ordinance or for a violation of this Ordinance; The permit application misrepresented or failed to disclose a relevant or material fact; The requirements of the permit have been violated; There has been substantial deviation from the plans, specifications or requirements of the permit or the Letter of Authorization; The permittee has prevented a representative of the Department from entering the activity site to make reasonable inspections; or The permittee's rights under the permit have not vested and new information, changes in site conditions, or amended regulatory requirements necessitate revocation or suspension. Written notice. Except as provided for under Subsection (d), Emergency Action, the Department may not suspend or revoke a nontidal wetland permit or Letter of Authorization unless the Department notifies a permittee of the suspension or revocation by certified mail. The notice shall include: The specific facts that warrant the suspension or revocation; and An opportunity for the permittee to appeal the action. Hearings. Upon receipt of written notice to suspend or revoke a permit, the permittee shall have ten (10) days to request a contested case hearing. A hearing under this Subsection shall be conducted according to Section 32-221(c). If the Department does not receive a request for a hearing, the permit shall be revoked or suspended. Emergency Action. The Department may order the immediate suspension or revocation of a permit or Letter of Authorization if the Department: Finds that public health, safety or welfare requires the emergency action; and Promptly gives the permittee written notice of the emergency action. A notice of emergency action shall include a statement of: The specific facts upon which the emergency action is based; and The permittee's opportunity to be heard in accordance with subsection (c).