225 ILCS 705/34.03-1
Whenever the Department is notified that subsidence is causing damage to surface areas overlying or in the proximity of an abandoned mine, the Mining Board shall hold a public hearing concerning the matter and publish its findings. If the Mining Board finds that subsidence in an abandoned mine has caused or is likely to cause damage to surface structures or constitutes a danger to the health, safety and welfare of the public, and the condition is not remedied within 30 days after publication of the findings, any duly authorized representative of the Department shall have the right, without obtaining further consent, to enter any portion of the abandoned mine by shaft, tunnel or otherwise, to perform refilling or such other remedial work as is deemed necessary by the Department.
If the Director determines that irreparable injury will result unless immediate action is taken, the entry may be authorized by the Director without notice or hearing for the purpose of taking temporary remedial action to minimize such injury pending the giving of notice and hearing.
225 ILCS 705/34.03-1