60 ILCS 1/205-10
Any township having a population of less than 500,000 may construct or purchase and operate a waterworks system or a sewerage system, or a combined waterworks and sewerage system, may improve or extend the system from time to time as provided in this Article, and may fund the system through the use of appropriated general township and federal revenue sharing funds and other income or revenue derived from the operation of the system or from the sale of revenue bonds under this Article. A township that owns and operates a sewerage system or a combined waterworks and sewerage system may, when determined by its township board to be in the public interest and necessary for the protection of the public health, enter into and perform contracts, whether long-term or short-term, with an industrial establishment for the provision and operation by the township of sewerage facilities to abate or reduce the pollution of waters caused by discharges of industrial wastes by the industrial establishment and the payment periodically by the industrial establishment to the township of amounts at least sufficient, in the determination of the township board, to compensate the township for the cost of providing (including payment of principal and interest charges, if any), operating, and maintaining the sewerage facilities serving the industrial establishment.
60 ILCS 1/205-10