Overview
Montgomery Regional Airport operates a stormwater outfall in Montgomery, Alabama, managing runoff from airport facilities under US EPA NPDES MS4 regulations.
Montgomery Regional Airport, located at 4445 Selma Highway in Montgomery, Alabama, operates a stormwater outfall that discharges runoff from the airport's impervious surfaces. As a transportation hub, the facility manages stormwater from aircraft parking areas, terminals, and associated infrastructure, contributing to local flood control and water quality management in the Alabama River watershed. The outfall operates under the US EPA's National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permit framework, which requires stormwater management plans for industrial and transportation facilities. The airport's stormwater system likely includes oil-water separators, detention basins, and regular monitoring to comply with Clean Water Act standards for pollutant discharge. Stormwater management at airports is critical due to the potential for runoff containing deicing fluids, fuel residues, and sediment. The facility's location in Montgomery, a city with a humid subtropical climate and frequent thunderstorms, necessitates robust stormwater controls to prevent flooding and protect downstream water bodies from contamination.
Environmental context
The Montgomery Regional Airport stormwater outfall discharges into the Alabama River basin, which supports diverse aquatic ecosystems and provides drinking water for downstream communities. Urban and industrial runoff from the airport can carry pollutants such as heavy metals, hydrocarbons, and sediment, posing risks to water quality. The facility operates under NPDES MS4 Phase II requirements, which mandate best management practices to reduce pollutant loads and protect impaired waters in the region.
Frequently asked questions
The stormwater outfall is located at Montgomery Regional Airport, 4445 Selma Highway, Montgomery, Alabama 36108-4842, United States.
It manages and discharges stormwater runoff from airport surfaces, including runways, taxiways, and parking areas, to prevent flooding and control pollutant releases into local waterways.
Airport stormwater outfalls are regulated under the US EPA's NPDES MS4 permit program, which requires stormwater pollution prevention plans, monitoring, and best management practices to comply with the Clean Water Act.
Common pollutants include deicing fluids (ethylene glycol, propylene glycol), fuel residues, heavy metals, sediment, and oils from aircraft and vehicle operations, which can harm aquatic life if not properly treated.
Stormwater management systems at airports use detention basins, oil-water separators, and vegetated swales to reduce runoff volume and filter pollutants, protecting downstream water bodies and ecosystems from contamination.
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