Ralph Wien Memorial Airport Stormwater Outfall, Kotzebue, Alaska

Ralph Wien Memorial Airport is a stormwater outfall located in Kotzebue, Alaska, United States. It serves the airport's drainage needs, handling runoff from impervious surfaces such as runways, taxiways, and parking areas. As a stormwater outfall, it is part of the broader municipal separate storm sewer system (MS4) that requires compliance with the Clean Water Act. The facility operates under the regulatory framework of the US EPA's NPDES MS4 permit program. In Alaska, stormwater discharges from airports are typically covered under general permits for industrial activities or municipal systems. The airport's stormwater infrastructure is designed to manage runoff volume and quality, with potential treatment through sedimentation basins or vegetated swales. Located in the Arctic region, the airport faces unique challenges such as permafrost and extreme seasonal variations. Proper stormwater management is critical to prevent erosion, protect local water bodies like the Kotzebue Sound, and maintain operational safety. The facility plays a key role in supporting air travel connectivity for the remote community.

The airport is situated near the Kotzebue Sound, a water body that may be sensitive to pollutants from stormwater runoff. In Arctic environments, permafrost limits infiltration and increases runoff, raising the risk of erosion and contaminant transport. The facility's discharge could affect local aquatic habitats, making effective stormwater management essential for environmental protection.