210 ILCS 49/4-111
Notwithstanding the existence or pursuit of any other remedy, the Director of the Department may, in the manner provided by law, upon the advice of the Attorney General who shall represent the Director of the Department in the proceedings, maintain an action in the name of the State for injunction or other process against any person or governmental unit to restrain or prevent the establishment of a facility without a license issued pursuant to this Act, or to restrain or prevent the opening, conduction, operating, or maintaining of a facility without a license issued pursuant to this Act. In addition, the Director of the Department may, in the manner provided by law, in the name of the People of the State and through the Attorney General who shall represent the Director of the Department in the proceedings, maintain an action for injunction or other relief or process against any licensee or other person to enforce and compel compliance with the provisions of this Act and the standards, rules, and regulations established by virtue of this Act and any order entered for any response action pursuant to this Act and such standards, rules, and regulations.
210 ILCS 49/4-111