Mich. Comp. Laws § 280.556
Within 30 days following receipt of a petition as provided in section 552 of this act, the director of agriculture shall review the petition for sufficiency and accuracy, shall make a preliminary finding of the counties which in his opinion include public corporations that should be assessed under the provisions of this chapter, and shall mail written notice of the first meeting of the water management commission to the county clerk and drain commissioner of each such county, to the highway agencies having jurisdiction over all highways, roads and streets in said district, to the secretary of each soil conservation district and to the city or village clerk of each city and village within such counties with a population of 5,000 or more according to the latest or each succeeding federal decennial census, which in his opinion are subject to assessment for the cost of the project. Such notice shall request the appointment of a representative of each public corporation so notified to the commission and shall state the time and place of the first meeting, which shall be held not less than 30 nor more than 45 days following the mailing thereof. In the event a county board of supervisors of any such county does not meet in a regular or special session prior to the date of the first meeting of the commission, the chairman of the board of supervisors shall represent the county at the first meeting, and the board of supervisors shall appoint a member to the commission at its next regular or special session. Failure of the governing body of any public corporation entitled to representation to appoint a member to the commission shall not prevent the inclusion of such public corporation in the water management district, nor exempt it from assessment or other obligations imposed by this chapter, but such public corporation shall be without representation until it shall appoint a member. The director of agriculture shall also send notice of the first meeting to the director of the department of conservation, the state highway commissioner and the county road commission of each county within the district.
MCL 280.556