Ill. Admin. Code tit. 77, § 843.100
d) The Department may consider the following criteria independently or aggregately to determine whether a fine shall be assessed:
15) Whether the person failed to comply with the Act or this Part.
1) First violation − the person may be issued a fine of up to $5,000.
3) Repeat violation − the person may be issued a minimum fine of $5,000 plus additional fines calculated below: