In the event of an actual or threatened discharge to the POTW of any pollutant which
in the opinion of the director presents or may present an imminent and substantial
endangerment to the health or welfare of persons or the environment, or cause interference
with the POTW, the director, or in his absence the person then in charge of the treatment
works, shall immediately notify the Emergency Response Office of the nature of the
emergency. The director shall also attempt to notify the industrial user or other
person causing the emergency and request their assistance in abating same. Following
consultation with the aforementioned officials of the metropolitan government, or
in their absence such elected officials of the metropolitan government as may be available,
the director shall temporarily terminate the service of such user or users as are
necessary to abate the condition when such action appears reasonably necessary. Such
service shall be restored by the director as soon as the emergency situation has been
abated or corrected.