The county boards of health may suspend or revoke permits where the health and safety of the public requires such action. When, in the judgment of such board or its duly authorized agents, it is necessary and proper that such application for a permit be denied or that a permit previously granted be suspended or revoked, the applicant or holder of the permit shall be so notified in writing and shall be afforded an opportunity for hearing as provided in Article 1 of Chapter 5 of this title. In the event that such application is finally denied or such permit finally suspended or revoked, the applicant for or holder of such permit shall be given notice in writing, which notice shall specifically state the reasons why the application or permit has been suspended, revoked, or denied.