1. a) If an industrial user knows in advance of the need for a bypass, it must submit prior notice to the Control Authority, if possible at least 10 days before the date of the bypass.

2. b) An industrial user must submit oral notice of an unanticipated bypass that exceeds applicable pretreatment standards to the Control Authority within 24 hours from the time the industrial user becomes aware of the bypass. A written submission must also be provided within five days after the time the industrial user becomes aware of the bypass. The written submission must contain the following:

   1. 1) A description of the bypass and its cause;
   2. 2) The duration of the bypass, including exact dates and times; and
   3. 3) If the bypass has not been corrected, the anticipated time it is expected to continue and the steps taken or planned to reduce, eliminate and prevent reoccurrence of the bypass.

3. c) The Control Authority may waive the written report on a case-by-case basis if the oral report has been received within 24 hours.

   BOARD NOTE: Derived from 40 CFR 403.17(c) (2005).

(Source: Amended at 30 Ill. Reg. 17847, effective October 26, 2006)