On June 25, 2025, Curia Missouri submitted a Class 3 Permit modification request to the department, requesting to modify its hazardous waste permit. Curia is proposing to remove about 29 acres of the facility’s property that is not covered under the existing Environmental Covenant from regulation under the permit. The purpose of this request is to align the terms of the permit with the covenant by updating the property descriptions in the Permit with those defined in the executed covenant. Curia Missouri has completed several environmental investigation and found no contamination in the area proposed for removal.
This meeting is an opportunity for the public to ask questions about the permit modification request, share information and discuss issues with facility staff. The department is accepting written comments on the permit modification request until Aug. 24, 2025. Follow the public comment period link below below to review the permit modification request or for more information about the public comment period.