70 ILCS 405/22.07a
To cooperate and effectuate agreements with individuals or agencies of government, and to plan, construct, operate, and maintain programs and projects relating to the improvement of soil health and conservation of the renewable natural resources of soil, water, forests, fish, wildlife, and air in this state, for the control and prevention of loss of soil health, soil erosion, floods, flood water and sediment damages, and impairment of dams and reservoirs; to assist in maintaining the navigability of rivers and harbors, and in addition, to cooperate with local interests and agencies of government in providing domestic and industrial municipal and agricultural water supplies and recreational project developments and improvements.
70 ILCS 405/22.07a