Delta Western LLC-Unalaska-Dutch Harbor Airport Stormwater Outfall, Dutch Harbor, Alaska

Delta Western LLC-Unalaska-Dutch Harbor Airport is a stormwater outfall located at 101 Airport Drive in Dutch Harbor, Alaska. This facility manages stormwater runoff from the airport infrastructure, serving the transportation hub of the Aleutian Islands. As a stormwater outfall, it discharges collected runoff into local waterways, operating under the regulatory framework of the US Clean Water Act. The facility falls under the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) program, which governs stormwater discharges from urbanized areas and industrial facilities. The outfall likely handles runoff from airport aprons, runways, and associated infrastructure. Typical stormwater management at airports includes oil-water separators, sediment basins, and regular monitoring to prevent pollutant discharge. Located in the remote Aleutian Islands, this outfall discharges into the Bering Sea ecosystem, which supports critical fisheries and marine wildlife. Proper stormwater management is essential to prevent contamination from de-icing agents, fuel residues, and other airport-related pollutants. The facility's operational status ensures compliance with Alaska's water quality standards and federal regulations.

Dutch Harbor is a major fishing port in the Aleutian Islands, with a cold, maritime climate and significant precipitation. Stormwater runoff from the airport can carry pollutants such as de-icing fluids, petroleum hydrocarbons, and sediment into nearby marine waters. The Bering Sea ecosystem is highly productive but sensitive to contamination, supporting commercial fisheries and marine mammals. Regulatory oversight under the Clean Water Act and Alaska's water quality standards aims to minimize ecological impacts from stormwater discharges.