LYNDEN AIR CARGO APRON EXPANSION Stormwater Outfall, Anchorage, Alaska

LYNDEN AIR CARGO APRON EXPANSION is a stormwater outfall located at 6441 South Airpark Place, Anchorage, Alaska 99502. The facility manages stormwater runoff from an airport cargo apron expansion project, classified under NAICS 236220 (Commercial and Institutional Building Construction). As a stormwater outfall, it discharges collected runoff into local waterways, subject to federal and state regulations. Operational under the US Clean Water Act, this outfall is likely covered by an NPDES MS4 permit, given its location in Anchorage Municipality. Stormwater outfalls in Alaska often face challenges from snowmelt and permafrost, requiring robust design for cold climates. The environmental significance of this outfall lies in its potential impact on receiving waters near Anchorage, such as Cook Inlet. Proper management of stormwater from industrial areas like airports is critical to prevent pollutants (e.g., de-icing chemicals, sediment) from harming aquatic ecosystems. The facility plays a role in local flood control and water quality protection.

Anchorage's stormwater outfalls discharge into sensitive water bodies like Cook Inlet, which supports salmon runs and marine life. The region's cold climate and seasonal snowmelt create unique runoff patterns, with potential for high pollutant loads from airport operations (e.g., de-icing fluids). Regulatory oversight under the Clean Water Act and Alaska's water quality standards aims to mitigate these impacts.