70 ILCS 605/8-12
When any land lies within a district and such land is not connected to a district drain and is not and cannot presently be benefited or protected by the work of that district, but such land is or can be benefited by the work of another district, the landowners and the commissioners of the 2 districts may enter into an agreement to detach the land from the former district and to annex the land to the latter district. Such agreement shall be in writing and shall become effective only upon the approval of the circuit court of the county or counties in which the districts were organized. Such approval may be granted upon petition of the landowner or the commissioners, and the petition may be heard without notice or upon such notice as the court may direct.
70 ILCS 605/8-12