AES navigated a complex regulatory process to help close the technically challenging Shullsburg legacy mine site located in the Upper Mississippi Lead/Zinc district. AES developed and implemented long-term monitoring and care, contingency, and annual reporting plans to comply with Wisconsin DNR reclamation permit requirements.
Work included a detailed inventory, analysis, and characterization of the site’s ecological conditions. Areas where sulfide oxidation compromised vegetative growth required a detailed contingency plan to ensure plant growth and tailings stability. The long-term monitoring and care plan addressed issues of acidification, slope stability, soil compaction, re-vegetation and overall site management. AES consultants prepared a Wildlife Habitat Management Plan with special emphasis on nongame grassland songbirds and savanna restoration.
To implement compliance measures, AES crews have conducted O+M activities such as over-seeding, planting, herbiciding and time sensitive prescribed burning. An annual report to the DNR includes O+M activities and a rapid site assessment inspection report.
- Mine Reclamation + Legacy Site Closure
- Habitat Assessment
- Natural Resource Inventory and Analysis
- GPS Mapping
- Ecological Restoration O+M
- Long-term Compliance Monitoring
Shullsburg Lead/Zinc Mine Reclamation