(a)

(1) Whenever the local administrative officer of any pretreatment agency has reason to believe that a violation of any provision of the pretreatment program of the pretreatment agency or orders of the local hearing authority issued pursuant thereto has occurred, is occurring, or is about to occur, the local administrative officer may cause a written complaint to be served upon the alleged violator or violators.

(2) The complaint shall specify the provision or provisions of the pretreatment program or order alleged to be violated or about to be violated and the facts alleged to constitute a violation thereof, may order that necessary corrective action be taken within a reasonable time to be prescribed in such order, and shall inform the violators of the opportunity for a hearing before the local hearing authority.

(3) Any such order shall become final and not subject to review unless the person or persons named in the order request by written petition a hearing before the local hearing authority as provided in § 69-3-124, no later than thirty (30) days after the date such order is served; provided, that the local hearing authority may review such final order on the same grounds upon which a court of the state may review default judgments.

(b)

(1) Whenever the local administrative officer finds that an emergency exists imperatively requiring immediate action to protect the public health, safety, or welfare, the health of animals, fish or aquatic life, a public water supply, or the facilities of the publicly owned treatment works of the pretreatment agency, the local administrative officer may, without prior notice, issue an order reciting the existence of such an emergency and requiring that such action be taken as the local administrative officer deems necessary to meet the emergency.

(2) If the violator fails to respond or is unable to respond to the local administrative officer's order, the local administrative officer may take such emergency action as the local administrative officer deems necessary, or contract with a qualified person or persons to carry out the emergency measures. The local administrative officer may assess the person or persons responsible for the emergency condition for actual costs incurred by the local administrative officer in meeting the emergency.

(c) Except as otherwise expressly provided, any notice, complaint, order or other instrument issued by or under authority of this part may be served on any person affected thereby personally, by the local administrative officer or any person designated by the local administrative officer, or such service may be made in accordance with Tennessee statutes authorizing service of process in a civil action. Proof of service shall be filed in the office of the local administrative officer.