415 ILCS 75/6
At the request of a unit of local government to which a siting approval application for a new pollution control facility for the storage, treatment or disposal of hazardous waste has been made, pursuant to Section 39.2 of the Environmental Protection Act, the Department shall evaluate the public health implications of such proposed facility.
Such request shall be made to the Department within 14 days of the filing of the application. The Department shall transmit its evaluation to the unit of local government within 75 days of the request. Such evaluation shall be made available for public inspection and shall be made part of the hearing record. If the Department fails to transmit the evaluation prior to the last required public hearing the unit of local government may consider that evaluation in making its determination only upon its finding that the delay has not resulted in material prejudice to the applicant or the public.
415 ILCS 75/6