20 ILCS 3515/8

The State authority is authorized and empowered directly or by or through any person, as its agent, to acquire by purchase, lease, gift, legacy or otherwise such land, structures, rights of way, franchises, easements, other interests in lands including lands lying under water and riparian rights and any other property whether real, personal or mixed, which are located within or without the State as it may deem necessary or convenient for the construction or acquisition of an environmental facility, but upon such terms as may be considered by the authority to be reasonable, and to take title thereto in the name of the authority or in the name of such person as its agent.