Amends the PFAS Reduction Act. Requires the Environmental Protection Agency to follow the most up-to-date guidance to states from the United States Environmental Protection Agency on addressing the discharge of PFAS in National Pollutant Discharge Elimination System (NPDES) permits. Requires the Agency to create a PFAS monitoring plan to be submitted to the Governor and the General Assembly by July 1, 2024. Provides that the Prairie Research Institute's Illinois Sustainable Technology Center shall provide PFAS-related technical assistance to industrial wastewater dischargers. Requires the Environmental Protection Agency to establish a take-back program for fire departments that use and store firefighting foam containing PFAS.