Ohio Rev. Code § 6105.16
Annually, within thirty days after the expenditure budget of a watershed district has been submitted to the boards of county commissioners under section 6105.15 of the Revised Code, the president of the board of county commissioners of that county or part of a county with a population within the territorial boundaries of the district, according to the last federal census, greater than that of any other county or part of a county within such district, shall call a meeting of the president or duly authorized representative of the board of county commissioners of each watershed county for the purpose of adopting an expenditure budget for the district for the next succeeding calendar year and of appointing a member to the board of directors of the district to fill the vacancy which has or will occur as a result of the expiration of a term of a member of the board.
Such meeting shall be called by sending a written notice thereof to such presidents or representatives, at least ten days before the date of the meeting, stating the time and place where the meeting will be held.
The president of the board of county commissioners required to call the meeting under this section shall act as a chairman of the meeting.
R.C. § 6105.16