70 ILCS 3715/4
Such board of trustees shall, within thirty days after appointment, organize by selecting one of its members as chairman and one thereof as secretary. They shall also select a treasurer, an engineer, an attorney and such other employees as they deem expedient who shall serve during the pleasure of the board. Salaries of all employees shall be fixed by the trustees but no trustee shall receive compensation in excess of $500.00 per year. All costs and expenses of the court proceedings and the election in connection with the organization of the authority shall be borne by such authority. The trustees shall have power to adopt all such rules and regulations and to enact all such ordinances as may be deemed necessary or expedient to carry out the purposes of this act and to exercise their powers as herein defined.
70 ILCS 3715/4