(1)   

      (a)    If the department has reason to believe that a violation of this chapter or any rule promulgated or special order, plan approval, or any term or condition of a license issued under this chapter occurred, it may:

         1.    Cause written notice to be served upon the alleged violator. The notice shall specify the law or rule alleged to be violated, and contain the findings of fact on which the charge of violation is based, and, except as provided in s. 289.95, may include an order that necessary corrective action be taken within a reasonable time. This order shall become effective unless, no later than 30 days after the date the notice and order are served, the person named in the notice and order requests in writing a hearing before the department. Upon such request, the department shall after due notice hold a hearing. Instead of an order, and except as provided in s. 289.95, the department may require that the alleged violator appear before the department for a hearing at a time and place specified in the notice and answer the charges complained of; or

         2.    Initiate action under s. 299.95.

      (b)    If after such hearing the department finds that a violation has occurred, it shall affirm or modify its order previously issued, or issue an appropriate order for the prevention, abatement or control of the problems involved or for the taking of other corrective action as may be appropriate. If the department finds that no violation has occurred, it shall rescind its order. Any order issued as part of a notice or after hearing may prescribe one or more dates by which necessary action shall be taken in preventing, abating or controlling the violation.