The Challenge
Covia needed to expand rail infrastructure at one of the largest silica mines in the United States to increase production capacity. The project required complex environmental permitting under strict antidegradation standards, coordination with multiple regulatory agencies, and mitigation planning—all within a critical timeline. Severe weather events during stream sampling added further challenges to meeting permit deadlines.
Our Solution
Spheros Environmental (formerly Northwater) conducted a comprehensive baseline stream assessment, including water quality analysis, fish and macroinvertebrate sampling, habitat characterization, and groundwater evaluation. We developed a Quality Assurance Project Plan (QAPP), coordinated with the U.S. Army Corps of Engineers and Illinois EPA, and reviewed engineering plans to recommend a cost-effective stream relocation strategy. This approach secured timely regulatory approval and improved stream conditions despite weather-related delays.
Technical Advisor
Results +What makes this unique
The permitting process was completed on schedule, enabling the rail expansion to proceed without delays. Our innovative mitigation strategy reduced costs and enhanced stream stability. Following construction, we implemented a five-year monitoring program to ensure compliance, including annual reporting, invasive species management, and technical support. This long-term stewardship demonstrates our commitment to regulatory compliance and ecological integrity.
Project Experts
