55 ILCS 5/5-32008

Accompanying any ordinance for a local improvement presented by the Committee shall be a recommendation of such improvement by the Committee signed by at least a majority of the members thereof. The recommendation by the Committee shall be prima facie evidence that all of the requirements of the law have been complied with. If a variance is shown in the proceedings in the Court it shall not affect the validity of the proceedings unless the court considers the variance willful or substantial.