35 Ill. Adm. Code 813.201
Initiation of a Modification or Significant Modification
Section 813
Section 813.201Â Initiation
of a Modification or Significant Modification
a)Â Â Â Â Â Â Â Â Operator Initiated Modification
A modification or significant modification to an approved
permit shall be initiated at the request of an operator at any time after the
permit is approved. The operator initiates a modification or significant
modification by application to the Agency.
b)Â Â Â Â Â Â Â Â Agency Initiated Modification
1)Â Â Â Â Â Â Â Â The Agency may modify a permit under the following conditions:
A)Â Â Â Â Â Â Â Discovery of a typographical or calculation error;
B)Â Â Â Â Â Â Â Discovery that a determination or condition was based upon
false or misleading information;
C)Â Â Â Â Â Â Â An order of the Board issued in an action brought pursuant to
Title VIII, IX or X of the Act; or
D)Â Â Â Â Â Â Â Promulgation of new statutes or regulations affecting the
permit.
2)Â Â Â Â Â Â Â Â Modifications initiated by the Agency shall not become
effective until after 45 days of receipt by the operator, unless stayed during
the pendency of an appeal to the Board. All other time periods and procedures
in 813.203 shall apply. The operator may request the Agency to reconsider the
modification, or may file a petition with the Board pursuant to Section
813.106. All other time periods and procedures in 813.203 shall apply.