Ill. Admin. Code tit. 62, § 245.330
b) Applications for permit modification shall be made on a Department permit application form and shall specifically identify the applicant, the well, and each proposed deviation to the original permit.
c) The permit modification application for a significant deviation shall be accompanied by a non-refundable fee of $13,500 as set forth in Section 245.210, and shall be reviewed and approved or rejected with all the opportunities for notice, comment and hearing required under Sections 1-45 and 1-50 of the Act and Sections 245.240 through 245.270 of this Part as if it were a completely new permit application under the permit application procedures set forth in this Part. The applicant shall confer with the Department prior to filing the application for modification so as to coordinate scheduling. Examples of permit modifications that are considered significant deviations are those that propose to:
2) add a new horizontal well bore or bores;
B) substantially moving, extending or adding to the well site;
e) All other permit modification applications may be filed as an insignificant permit deviation and accompanied by a non-refundable $5,000 permit modification fee. However, the Department has the discretion to determine that the permit modification is a significant deviation based on the content of the application. The permit modification application for insignificant permit deviation shall be reviewed and approved or rejected under the following procedures: