If the petition is filed by a majority of the voters or landowners within the territory proposed to be added to the reorganized sewer district, the publication of notice shall not be required, provided notice is posted in three public places within such territory at least seven days before the date of the hearing, and provided that there is sworn testimony by at least five landowners in such territory, or a majority of the landowners if the total landowners in the area are fewer than ten. Otherwise the procedures for notice substantially shall follow the procedures in subsection 2 of this section for formation. Territory proposed to be added to the reorganized sewer district may be either contiguous or reasonably close to the boundaries of the existing district, provided that it shall not include any territory within the corporate boundaries of any sewer district then existing or within the certificated boundaries then existing of any sewer corporation providing service under a certificate of convenience and necessity granted by the public service commission. Upon the entry of a final judgment declaring the court's decree of territory proposed to be added to the reorganized sewer district to be final and conclusive, the court shall modify or rearrange the boundary lines of the reorganized sewer district as may be necessary or advisable. The costs incurred in the enlargement or extension of the district shall be taxed to the district, if the district is enlarged or extended. Otherwise, such costs shall be paid by the petitioners. However, no costs shall be taxed to the trustees of the district.
§ 204.602, RSMo