70 ILCS 605/12-7
Whoever wilfully obstructs, injures or destroys any covered drain constructed through the lands of others as provided in Section 2--6 of this Act, or any other drain, levee, drainage structure or pumping plant, whether private, mutual or district, is guilty of a Class A misdemeanor. The dumping of trash, refuse or debris into an open drain shall be treated and considered as obstructing a drain.
The pollution of the water of any drain of any drainage district shall be considered an injury to such drain, within the meaning of this Section. Pollution shall be deemed to be wilful, within the meaning of this Section, if the person, firm or corporation responsible for such pollution shall allow the same to continue for more than 60 days after written notice from the commissioners to abate the same.
Whoever wilfully cuts or breaches any private, mutual or district levee is guilty of a Class 3 felony.
Any fines collected under this Section for the obstruction, injury or destruction of a district drain, drainage structure or pumping plant or for the cutting or breaching of any district levee shall be paid over to the district.
In addition to the criminal penalty imposed by this Section, whoever wilfully or negligently obstructs, injures, cuts, breaches or destroys a private, mutual or district drain or drainage structure, levee or pumping plant is liable for the cost of repairing or reconstructing the same and for any damage to lands, crops or other property that may have resulted therefrom.
70 ILCS 605/12-7