70 ILCS 200/260-20
Within 60 days after September 17, 1984 (the effective date of Article 2 of Public Act 83-1456), the Mayor of Sterling with the advice and consent of the Sterling City Council shall appoint 7 members of the Board, 2 members to be appointed for a term of one year, 2 members to be appointed for terms of 2 years, and 3 members to be appointed for terms of 3 years, such terms commencing on the date each is appointed. One of the members appointed may be a representative from the Sterling City Council. At the expiration of the term of any member, his successor shall be appointed by the Mayor of Sterling in a like manner. All successors shall hold office for a term of 3 years from the date of appointment, except in case of an appointment to fill a vacancy.
70 ILCS 200/260-20