Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 545.149

A list, tally paper or certificate returned from any election shall not be set aside or rejected for want of form if it can be satisfactorily understood. The board of directors shall meet at its usual place of meeting on the first Monday after each election to canvass the returns. If, at the time of meeting, the returns of each precinct in which polls have been opened have been received, the board of directors shall then and there canvass the returns. However, if all the returns have not been received, the canvass shall be postponed from day to day until all the returns have been received, or until six postponements have been had. The canvass shall be made in public and by opening the returns and computing the vote of the district for each person voted for, and declaring the result.