A. A user may allow any bypass to occur which does not cause pretreatment standards or requirements to be violated, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provision of Subsections C and D of this section.
(1) If a user knows in advance of the need for a bypass, it shall submit prior notice to the operator at least 10 days before the date of the bypass, if possible.
(2) A user shall submit oral notice to the operator of an unanticipated bypass that exceeds applicable pretreatment standards within 24 hours from the time it becomes aware of the bypass. A written submission shall also be provided within five days of the time the user becomes aware of the bypass. The written submission shall contain a description of the bypass and its cause; the duration of the bypass, including exact dates and times, and, if the bypass has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate and prevent reoccurrence of the bypass. The operator may waive the written report on a case-by-case basis if the oral report has been received within 24 hours.
B. Notice and report.
(1) If a user knows in advance of the need for a bypass, it shall submit prior notice to the operator at least 10 days before the date of the bypass, if possible.
(2) A user shall submit oral notice to the operator of an unanticipated bypass that exceeds applicable pretreatment standards within 24 hours from the time it becomes aware of the bypass. A written submission shall also be provided within five days of the time the user becomes aware of the bypass. The written submission shall contain a description of the bypass and its cause; the duration of the bypass, including exact dates and times and, if the bypass has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate and prevent reoccurrence of the bypass. The operator may waive the written report on a case-by-case basis if the oral report has been received within 24 hours.
C. Exceptions.
(1) Bypass is prohibited, and the operator may undertake an enforcement action against a user for a bypass, unless:
(a) The bypass was unavoidable to prevent loss of life, personal injury or severe property damage.
(b) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance.
(c) The user submitted notices as required under Subsection C of this section.
(2) The operator may approve an anticipated bypass, after considering its adverse effects, if the operator determines that it will meet the three conditions listed in Subsection D(1) of this section.