65 ILCS 5/9-2-115
In every assessment proceeding in which the assessment is divided into installments, the board of local improvements shall state in the certificate whether or not the improvement conforms substantially to the requirements of the original ordinance for the construction of the improvements, and shall make an application to the court to consider and determine whether or not the facts stated in the certificate are true. Thereupon the court, upon such an application, shall fix a time and place for a hearing upon the application, and shall record the application. The time of this hearing shall be not less than 15 days after the filing of the certificate and application. Public notice shall be given at least twice of the time and place fixed for that hearing by publishing in a newspaper, in the same manner and for the same period as provided in this Division 2 for publishing notice of application for the confirmation of the original assessment, the publication of this notice to be not more than 30 nor less than 15 days before the day fixed by the order for that hearing.
At the time and place fixed by the notice or at any time thereafter, the court shall proceed to hear the application and any objection which may be filed thereto within the time fixed in the order. Upon that hearing the specified certificate of the board of local improvements shall be prima facie evidence that the matters and things stated are true, but if any part thereof is controverted by objections duly filed thereto, the court shall hear and determine the objections in a summary manner and shall enter an order according to the fact.
65 ILCS 5/9-2-115