KEENUM CONSTRUCTION - SOIL BORROW PIT Stormwater Outfall, Leighton, Alabama

KEENUM CONSTRUCTION - SOIL BORROW PIT is a stormwater outfall located in Leighton, Colbert County, Alabama, United States. The facility is operational and classified under NAICS code 212399 (Other Nonmetallic Mineral Mining and Quarrying), indicating an industrial catchment associated with soil borrowing activities. As a stormwater outfall, it manages runoff from the construction site, discharging to local waterways. The facility operates within the regulatory framework of the US Clean Water Act, specifically under the National Pollutant Discharge Elimination System (NPDES) program. Stormwater discharges from construction activities are typically regulated under NPDES General Permits for Stormwater Discharges from Construction Activities. The facility's location in Alabama subjects it to state-level implementation of federal standards, with oversight by the Alabama Department of Environmental Management (ADEM). As a stormwater outfall serving a soil borrow pit, the facility plays a role in managing erosion and sediment control to protect downstream water quality. The site's proximity to the Tennessee River watershed may have implications for local aquatic ecosystems. Proper stormwater management helps mitigate impacts from sediment-laden runoff, which is a common concern for construction and mining operations in the region.

The facility is located in Colbert County, Alabama, within the Tennessee River basin. The region experiences a humid subtropical climate with significant rainfall, increasing the potential for stormwater runoff. The soil borrow pit operation generates disturbed soils that can contribute to sedimentation in nearby streams if not properly managed. Discharges from such sites are regulated to prevent impairment of water bodies, particularly those designated for aquatic life and recreation.