The SMO may, without prior notice, suspend MS4 discharge access
to a person when such suspension is necessary to stop an action which
presents or may present imminent and substantial danger to the environment,
to the health or welfare of persons, or to the MS4. The SMO shall
notify the person of such suspension within a reasonable time thereafter
in writing and of the reasons for the suspension. If the violator
fails to comply with a suspension order issued in an emergency, the
SMO may take such steps as deemed necessary to prevent or minimize
damage to the MS4 or to minimize danger to persons.