55 ILCS 5/5-23004
If the board of directors finds that it is no longer necessary to provide an in-patient facility to serve the residents suffering from tuberculosis, it may recommend to the county board that the tuberculosis sanitarium established and maintained in the county under this Division be closed.
When such a recommendation is received, the county board shall determine what use should be made of the sanitarium facilities. If the Tuberculosis Sanitarium Fund was used to acquire the tuberculosis sanitarium property or to construct an addition thereto, or otherwise improve such property, the county board may, subject to Section 5-23005, use the facilities for other county purposes, may lease them to public or private agencies or may sell them. If the tuberculosis sanitarium facilities are leased to a public or private agency other than the county, or are sold, then such leasing or sale must be for a consideration at least equal to the fair market value or fair rental value. If the county board uses such facilities for other county purposes, then the use shall be for a consideration acceptable to the board of directors and the county board.
Proceeds from the use, leasing or sale of sanitarium facilities under this Section shall be paid into the Tuberculosis Sanitarium Fund of the county for use as provided in this Division.
If the sanitarium is under the control and management of a joint board of directors, as provided for in Section 5-23006, the approval of each county board of the counties involved as to the manner of disposition of the sanitarium facilities is required and the proceeds from that disposition shall be allocated among those counties in proportion to their share in the costs of construction and maintenance of the facilities.
55 ILCS 5/5-23004