A1 Auto Parts & Sales Stormwater Outfall, Semmes, Alabama | United States

A1 Auto Parts & Sales is a stormwater outfall located at 7630 St. Augustine Drive in Semmes, Mobile County, Alabama, United States. The facility is operational and falls under the stormwater sector, specifically classified as a stormwater outfall. It serves an industrial catchment area associated with the motor vehicle parts and supplies merchant wholesaling industry (NAICS 423140). As a stormwater outfall in the United States, this facility operates within the regulatory framework of the Clean Water Act and the EPA's NPDES MS4 permit program. Alabama's stormwater management is overseen by the Alabama Department of Environmental Management (ADEM), which implements Phase II MS4 requirements for small municipalities. The facility's discharge is subject to local stormwater pollution prevention plans (SWPPPs) and best management practices (BMPs) to control pollutants. The environmental significance of this outfall lies in its potential to discharge stormwater runoff from an industrial site into nearby water bodies. Industrial stormwater discharges can carry pollutants such as heavy metals, oils, and sediments. Proper management and compliance with permit conditions are essential to protect water quality in the Mobile Bay watershed, which is ecologically important for the region.

The facility is located in Semmes, Alabama, within the Mobile Bay watershed, a region with a humid subtropical climate and significant rainfall. Stormwater runoff from industrial sites like A1 Auto Parts & Sales can carry pollutants such as oil, grease, metals, and sediment into local streams and rivers, ultimately affecting Mobile Bay. The area's extensive impervious surfaces and industrial activity increase runoff volumes and pollutant loads, making stormwater management critical for protecting aquatic ecosystems and downstream water quality.