Wilsonville Edwards Pit Stormwater Outfall, Wilsonville, Alabama | USA

Wilsonville Edwards Pit is a stormwater outfall located in Wilsonville, Shelby County, Alabama, United States. It serves as a discharge point for stormwater runoff from the surrounding area, which includes urban and potentially industrial catchments. The facility is operational and plays a role in managing local stormwater to reduce flooding and control pollution. As a stormwater outfall in the United States, this facility operates under the regulatory framework of the Clean Water Act and the US EPA's National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permits. Depending on the population served, Wilsonville may be subject to Phase II MS4 requirements, which mandate stormwater management programs to reduce pollutant discharges to the maximum extent practicable. The environmental significance of Wilsonville Edwards Pit lies in its contribution to managing stormwater runoff in the region. Properly managed outfalls help prevent erosion, flooding, and the transport of pollutants into nearby water bodies. The facility's location in Shelby County, Alabama, places it within a region where stormwater management is critical for protecting local water quality and aquatic habitats.

Wilsonville is located in Shelby County, Alabama, an area with a humid subtropical climate characterized by frequent rainfall, especially during summer thunderstorms. Stormwater runoff from urban and industrial areas can carry pollutants such as sediment, nutrients, heavy metals, and pathogens into local waterways. The Wilsonville Edwards Pit outfall discharges into a receiving water body that may be subject to water quality standards under the Clean Water Act. Effective stormwater management is essential to protect downstream ecosystems and comply with NPDES permit requirements.