Section 70 ILCS 2805/3 - Board of trustees-Organization(a) A board of trustees, consisting of 3 members, for the government, control and management of the affairs and business of each sanitary district organized under this Act shall be created by appointment as provided in paragraph (b) of this Section or by election as provided in Sections 3.1 and 3.2.(b) Within 60 days after the organization of a sanitary district, the presiding officer of the county board with the advice and consent of the county board shall appoint 3 trustees, all of whom shall be residents of such sanitary district, who shall hold their offices respectively, from the date of their appointment to the first Monday of the June of the first, second and third calendar years, respectively, next after their appointment and until their successors are elected and qualified. Thereafter, on or before the second Monday in May of each year the appointing authority in the county in which such sanitary district is situated shall appoint one trustee whose term shall be for 3 years commencing the first Monday in June of the year in which he is appointed. The respective terms of the first trustees shall be determined by lot at their first meeting. This paragraph does not apply in a sanitary district which has determined under Sections 3.1 and 3.2 to elect its trustees.(c) The appointing authority shall require each of the trustees to enter into bond, with security to be approved by the appointing authority, in such sum as the appointing authority may determine. In sanitary districts electing trustees, as provided in Sections 3.1 and 3.2, the bond required of each trustee shall be in such amount as is determined by the circuit court, with security approved by the circuit court.(d) A majority of the board of trustees shall constitute a quorum but a smaller number may adjourn from day to day. No trustee or employee of such sanitary district shall be directly or indirectly interested in any contract, work or business of the district, or the sale of any article, the expense, price or consideration of which is paid by such district; nor in the purchase of any real estate or property belonging to the district, or which shall be sold for taxes or assessments, or by virtue of legal process at the suit of such district. Nothing in this Act shall be construed as prohibiting the appointment or selection of any person as trustee or employee whose only interest in the district is as an owner of real estate in the district or of contributing to the payment of taxes levied by such district. The trustees may provide and adopt a corporate seal for the district.(e) Whenever a vacancy in an appointive board of trustees occurs either from death, resignation, refusal to qualify, or for any other reason, the appointing authority in the county in which such sanitary district is situated may fill such vacancy by appointment. A vacancy occurring on a board of trustees elected under Sections 3.1 and 3.2 may be filled by appointment by the remaining trustees. Any person appointed to fill a vacancy on a board of trustees, whether appointive or elected, shall qualify for office in the manner stated in this Section and shall thereupon assume the duties of the office for the unexpired term to which he was appointed.