6. The amount of the assessment against each tract or parcel of land.
If after filing the assessment roll, it appears that the amount of the assessment against any tract or parcel of land shall be increased, new or additional services, or improvements are to be provided or additional property is to be annexed into the district, the governing body shall by resolution set a time and place for the hearing on the resolution at which an owner may object to the amount of the assessment, the new or additional services, or improvements to be provided or the additional property to be annexed.