(B) At least twenty-one days prior to the date established for the hearing, the clerk of the board of county commissioners shall send a written notice of the hearing by certified mail to all landowners that are adjacent to the proposed improvement. The clerk shall send such notice by certified or first class mail to all other landowners within the area to be benefited by the proposed improvement, the board of supervisors of the applicable soil and water conservation district, and the county engineer. The clerk shall include all of the following in the notice:

1. (1) The date, time, and location of the hearing;
2. (2) A description of any easement on the landowner's property that is necessary for purposes of the improvement;
3. (3) A landowner's estimated assessment;
4. (4) A statement that a landowner may file comments on the proposed improvement and exceptions to the estimated assessment in writing before the hearing or in person at the hearing;
5. (5) The address at which to submit written comments on the proposed improvement and exceptions to the estimated assessment.