Overview
Dothan Houston County Airport Authority operates a stormwater outfall in Midland City, Alabama, managing runoff from airport facilities under US EPA NPDES MS4 regulations.
The Dothan Houston County Airport Authority stormwater outfall is located at 720 Airport Drive in Midland City, Alabama, within Dale County. This facility manages stormwater runoff from airport operations, including aircraft parking, fueling areas, and maintenance zones. As a stormwater outfall, it discharges collected runoff into local water bodies, subject to National Pollutant Discharge Elimination System (NPDES) permit requirements under the Clean Water Act. In the United States, stormwater outfalls at airports are typically regulated under Phase I or Phase II MS4 permits, depending on the airport's size and location. The Dothan Houston County Airport Authority likely operates under a small MS4 permit, requiring a Stormwater Pollution Prevention Plan (SWPPP) to control pollutants. The facility's NAICS code 488119 (Other Airport Operations) indicates it supports air transportation, with runoff potentially containing deicing fluids, fuel residues, and sediment. This outfall plays a key role in protecting downstream water quality in the region, which includes the Chattahoochee River watershed. Proper management of stormwater from airport operations helps prevent contamination of local streams and groundwater, supporting ecological health and compliance with Alabama's water quality standards.
Environmental context
The outfall discharges into the Chattahoochee River basin, a major water source for the southeastern United States. The region experiences a humid subtropical climate with frequent thunderstorms, leading to high runoff volumes. Airport operations can introduce pollutants such as deicing chemicals (ethylene glycol), petroleum hydrocarbons, and heavy metals into stormwater. Regulatory oversight under the Clean Water Act requires best management practices (BMPs) like oil-water separators and sediment basins to mitigate impacts on aquatic ecosystems.
Frequently asked questions
The outfall is located at 720 Airport Drive in Midland City, Alabama, within Dale County, near the Dothan Regional Airport.
It collects and discharges stormwater runoff from airport facilities, including runways, aprons, and maintenance areas, into local waterways under an NPDES permit.
Common pollutants include deicing fluids (ethylene glycol), fuel residues, sediment, and heavy metals from aircraft and vehicle operations.
They are regulated under the Clean Water Act's NPDES program, typically through MS4 permits (Phase I or II) requiring a Stormwater Pollution Prevention Plan (SWPPP).
The authority implements best management practices (BMPs) such as oil-water separators, sediment basins, and regular inspections to control pollutants before discharge.
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