What Solar Developers in Illinois Must Know About Clean Water Act Permits
Understand that the Clean Water Act regulates discharges into wetlands and waterways, requiring federal permits for solar projects that disturb protected water resources—even small-scale installations near streams or drainage areas may trigger Section 404 permitting requirements. Review your property’s proximity to jurisdictional waters before breaking ground, as the U.S. Army Corps of Engineers maintains authority over these determinations and can halt construction that proceeds without proper authorization.
Conduct a preliminary wetland delineation if your solar site includes low-lying areas, seasonal ponds, or vegetation …
