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Planning commission recommends approval for underground mine expansion near Dumely

St. Charles County Planning & Zoning Commission · December 18, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

The St. Charles County Planning & Zoning Commission recommended approval Dec. 17 of an amendment to an existing conditional use permit that would extend New Frontier Materials’ underground mine near Dumely while keeping surface operations, blasting schedules and production rates unchanged. Neighbors raised concerns about blasting, lights and setbacks.

The Planning & Zoning Commission on Dec. 17 recommended approval of an amendment to a 2003 conditional use permit that would expand New Frontier Materials’ underground mine at 2710 Highway F, the commission’s staff said.

Staff told commissioners the amendment would add roughly 174 acres of permitted underground workings but would not change surface operations, hours, blasting or production rates. The staff report noted compliance with the county explosive code’s storage, handling, noise and vibration limits and displayed a concept map showing the nearest residence about 2,500 feet from the…

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