6-3.5   Final Administrative Order.  
   The imposition of the administrative fine becomes a final administrative order at one of the following times:
   a.   On the date the notice of fine is served, if the responsible party fails to file a written appeal to the department within the time specified.
   b.   On the date the written decision by the hearing examiner is served, if the responsible party files a written appeal to the department within the time specified. (Ord. 2018-08, § 3)