Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 545.061

The board of directors, at the time and place mentioned in the notice, or at some other time to which the hearing of the petition may adjourn, shall hear the petition and consider all objections to the petition presented in writing by any person, showing cause why the petition should not be granted. The failure of any person to object shall be taken as assent by the person to the inclusion of the lands in the district as requested in the petition.