65 ILCS 5/11-140-3

The corporate authorities of such a municipality may acquire by purchase, gift, condemnation, or otherwise, all the real and personal property, rights-of-way, and easements within or without the corporate limits of the municipality necessary for the construction and maintenance of the outlet sewers and works authorized by Section 11-140-1. The corporate authorities have the same control and jurisdiction of this property which is without as of that which is within the municipality.