The department may suspend a permit immediately without prior notice to the holder of the permit if it determines, after inspection, that conditions within a dairy establishment present a substantial danger of illness, serious physical harm or death to consumers who might use the products of the dairy establishment. A suspension action taken under this section is effective when communicated to the dairy establishment operator or any employee or agent of the operator who is in charge of the premises involved. If there is no designated employee or agent in charge of the premises, communication to any employee physically present on the premises is sufficient communication to make the suspension effective.