(70 ILCS 10/4) (from Ch. 15 1/2, par. 254)
    Sec. 4. The airport authority shall have the power to:
    (1) Operate and conduct an airport;
    (2) Operate farming operations on real estate appurtenant to the airport;
    (3) Exercise the power of eminent domain in accordance with the laws of the state in which the airport is located;
    (4) Maintain, operate and extend water and sewer systems on the real estate of the land appurtenant to the airport, and make and collect charges for services;
    (5) Construct and lease industrial and aviation buildings on the land appurtenant to the airport;
    (6) Lease land, now owned by any combining governmental unit, suitable for an airport facility, for a term of not less than 99 years;
    (7) Secure expert guidance on the development of an area air facility to the end that the interests of the area are best served; and to implement that development within the laws of the party states;
    (8) Establish and fix by ordinance a restricted zone for such distances in any direction from the boundaries of such airport facility as in the opinion of the airport authority is necessary and practicable, regulating the height of structures to provide free air space for access by aircraft and for the safe use of the airport, all in a manner not in conflict with the existing laws of the party state in which the airport is located;
    (9) Accept, receive and receipt for federal moneys and other moneys, public or private, for the acquisition, construction, enlargement, improvement, maintenance, equipment or operation of airports and other air navigation facilities and sites therefor;
    (10) Buy and sell machinery for aviation purposes; and to negotiate and contract for personal services, materials and supplies: Provided, That whenever personal property is to be purchased or sold, there shall be due notice and competitive bidding as directed and required by the laws of the state in which the airport is located; and
    (11) Perform all functions and do all acts that are necessary to the total development of a commercial and industrial air facility, not inconsistent with the laws of the party states.
(Source: P.A. 90-655, eff. 7-30-98.)