Overview
The Northwest Arkansas Regional Airport Authority operates a stormwater outfall in Bentonville, Arkansas, managing runoff from airport facilities under EPA NPDES MS4 regulations.
The Northwest Arkansas Regional Airport Authority stormwater outfall is located at #1 Airport Blvd. in Bentonville, Arkansas, serving the Northwest Arkansas National Airport. This facility manages stormwater runoff from airport infrastructure, including runways, terminals, and parking areas, to prevent flooding and protect local water quality. As a stormwater outfall, it discharges collected runoff into nearby waterways, operating under the regulatory framework of the US Clean Water Act and EPA NPDES MS4 permits. Stormwater management at airports involves controlling pollutants such as deicing chemicals, fuel residues, and sediment. The facility's NAICS codes (488119 for Other Airport Operations and 926120 for Regulation and Administration of Transportation Programs) indicate its role in both airport operations and regulatory compliance. In Arkansas, stormwater discharges are typically regulated under Phase II MS4 permits for small municipalities, though airport authorities may have individual permits. The facility's operational status confirms active management of stormwater runoff. The environmental significance of this outfall lies in its discharge to local watersheds in Benton County, which drain into the Illinois River and ultimately the Mississippi River system. Proper stormwater treatment at airports reduces the risk of contaminating sensitive aquatic habitats. The facility contributes to regional flood control and water quality protection, supporting both aviation operations and community environmental goals.
Environmental context
The facility discharges stormwater from an airport setting, which can contain deicing fluids, petroleum residues, and sediment. In Arkansas, stormwater runoff is a concern for water quality in the Illinois River watershed, a tributary of the Mississippi River. The outfall operates under EPA NPDES MS4 regulations, requiring pollution prevention plans and best management practices to mitigate impacts on receiving waters.
Frequently asked questions
The stormwater outfall is located at #1 Airport Blvd. in Bentonville, Arkansas, at the Northwest Arkansas National Airport.
It manages stormwater runoff from airport facilities, including runways and terminals, discharging treated or untreated runoff into local waterways under EPA NPDES MS4 permit requirements.
Airport stormwater outfalls manage pollutants such as deicing chemicals (ethylene glycol), fuel residues, oils, greases, and sediment from construction or maintenance activities.
Stormwater outfalls are regulated under the Clean Water Act via the EPA NPDES MS4 program, which requires permits for discharges from municipal separate storm sewer systems, including airports.
Proper stormwater management reduces the discharge of harmful pollutants into rivers and streams, protecting aquatic ecosystems and drinking water sources. Airports implement best management practices like detention basins and oil-water separators.
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