Del. Code tit. 7 § 4131
Upon completion of the proposed report required by § 4130 of this title, the board of ditch commissioners shall notify all owners of property, wholly or partly within the watershed of the proposed tax ditch, of a hearing concerning the establishment of said tax ditch to be held in the county in which all or the major portion of the lands involved is located. The notice shall be mailed by 1st-class mail at least 20 days prior to the hearing and shall designate the time and place thereof. It shall also state that the purpose of the hearing is to consider the formation of a tax ditch which may affect the lands of the person notified and to hold a referendum among the affected landowners concerning the establishment of a tax ditch. In addition, the notice shall state the place where a copy of the above proposed report of the board of ditch commissioners will be open to inspection for at least 5 days, excepting Saturday and Sunday, prior to the hearing date.
7 Del. C. § 4131