TagSea-Tac Airport(2023)

The Port of Seattle is proposing upgrades to Seattle-Tacoma International Airport's Industrial Wastewater Treatment Plant (IWTP) to better handle wastewater from aircraft deicing operations, with construction planned from 2026 to 2030. The project involves replacing aging treatment equipment at the existing facility and building a new aerated gravel bed (AGB) treatment system on a 10.6-acre site nearby to process high levels of biochemical oxygen demand (BOD) on-site. These upgrades are required to comply with tightening discharge limits set by King County and state environmental permits.

This map, prepared by Landrum & Brown for the Port of Seattle's 14 CFR Part 150 Study at Seattle-Tacoma International Airport, shows the Recommended Noise Remedy Boundary (blue dashed line) alongside the Existing Remedy Boundary (black dashed line) and the Future (2018) NEM/NCP 65 DNL Noise Exposure Contour. The future noise contour covers 7.3 square miles, encompassing an estimated 3,771 housing units, 9,712 residents, and 9 noise-sensitive facilities in communities including Des Moines, Burien, SeaTac, Normandy Park, and Tukwila.

Agenda for the Port of Seattle Regular Commission Meeting held on June 24, 2025, conducted both virtually via MS Teams and in person at Seattle-Tacoma International Airport. The agenda includes special orders recognizing Pride Month, consent agenda items covering meeting minutes, claims and obligations, and capital improvement project authorizations, as well as unfinished business regarding

The image shows the airside tarmac at Seattle-Tacoma International Airport (Sea-Tac), featuring a Delta Air Lines aircraft tail (registration 3406, with distinctive red and blue livery) in the foreground and United Airlines aircraft at gates in the background. The airport's elevated pedestrian connector bridge and terminal facade are visible, along with ground crew personnel and equipment on the ramp.

An Alaska Airlines aircraft tail fin with the carrier's distinctive Eskimo logo is visible at right, alongside an air traffic control tower at left. A group of people, including individuals with a dog and wearing high-visibility vests, walk along what appears to be an airport perimeter area.