70 ILCS 2605/1
The corporate limits of the Sanitary District of Chicago, heretofore organized under the provisions of this Act, within the territorial limits of Cook County, may be extended in such manner as may be provided by law to include any area of contiguous territory within the limits of said Cook County wherein the construction, maintenance and operation of sewers and sewage treatment plants and the construction, enlargement and maintenance of outlets for the drainage of the territory will conduce to the preservation of the public health.
The Governor and either branch of the Legislature of this state shall have the right to examine the books of the trustees and all expenditures made by or in any such district, by committee or otherwise, and to call for further reports, accounts, items and copies of all contracts made by or documents held in the possession of any such trustee; and upon the failure refusal or neglect of any such trustees to accurately and completely furnish any and all such items, accounts, documents and reports of contracts as provided in this act, any and all trustees of any such sanitary district shall forfeit their office and by proceedings in quo warranto be ousted and removed therefrom; all such actions may be brought in the county where any such trustees may reside or wherein the major portion of any such sanitary district may be situated.
70 ILCS 2605/1