204.664. 1. To correct omissions, errors, or mistakes in theoriginal assessment that relate to the total cost of an improvement, thegoverning body of the district may, without a notice or hearing, makesupplemental or additional assessments on property within a sanitary sewerimprovement area, except that such supplemental or additional assessmentsshall not, without a new petition as provided in sections 204.650 to204.672, exceed twenty-five percent of the estimated cost of theimprovement as set forth in the petition under the provisions of sections204.650 to 204.672.
2. When an assessment is, for any reason whatsoever, set aside by acourt of competent jurisdiction as to any property, or in the event thegoverning body finds that the assessment or any part thereof is excessiveor determines on advice of counsel in writing that it is or may be invalidfor any reason, the governing body may, upon notice and hearing as providedfor the original assessment, make a reassessment or a new assessment as tosuch property.
(L. 2007 S.B. 22)