GIBSON MINE Stormwater Outfall, Bankston, Alabama | United States

GIBSON MINE is a stormwater outfall located near the intersection of Highway 18 and Neal Road in Bankston, Fayette County, Alabama. This facility manages stormwater runoff from an industrial catchment, likely associated with mining activities given its name and NAICS codes (212325 and 212399). As a stormwater outfall, it discharges collected runoff into local waterways, operating under the regulatory framework of the US Clean Water Act and EPA NPDES MS4 permits. The facility is operational and falls under Phase II MS4 regulations, which apply to small municipalities and industrial sites in urbanized areas. Stormwater outfalls like GIBSON MINE are designed to control the quantity and quality of runoff, reducing the risk of flooding and pollutant transport. The specific design capacity and treatment processes are not detailed, but typical outfalls may include sedimentation basins, vegetated swales, or detention ponds. In the context of Alabama's climate, with frequent heavy rainfall, effective stormwater management is critical to prevent erosion and protect water quality in downstream water bodies. The facility's location in a mining area means runoff may contain sediments and metals, requiring compliance with discharge limits. Proper operation helps maintain the ecological health of local streams and rivers.

The facility discharges stormwater from an industrial mining catchment, which can carry sediments, metals, and other pollutants into local waterways. Alabama's humid subtropical climate produces intense rainfall events, increasing runoff volumes and the risk of erosion. Effective stormwater management is essential to protect water quality in receiving streams, which may be impaired by industrial activities. The facility operates under NPDES MS4 permits that require best management practices to minimize pollutant loads.