70 ILCS 2905/4-1
Each district subject to this Act shall have a registered professional engineer, who shall be appointed by, and subject to removal by, the Board. He shall possess technical or specialized skill or knowledge in the field of engineering. The Board may satisfy this requirement by retaining an engineering firm.
Each district subject to this Act shall have an Executive Director, who shall be appointed by, and subject to removal by, the Board. A member of the Board may be considered for appointment as Executive Director, in which event he shall not attend the portion of the Board's meeting in which his appointment is being considered. A member of the Board who is appointed Executive Director may continue to serve as a member of the Board, but shall receive no compensation as a member of the Board. He shall devote his entire time to the duties of his office or offices held with the District.
70 ILCS 2905/4-1