TagSEPA(71)
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2025-10-22Programmatic Environmental Checklist – Seattle-Tacoma International Airport Flight Corridor Management Program
★Environmental checklist for SEA’s Flight Corridor Management Program, which identifies and removes tree obstructions from airport flight corridors every five years to comply with FAA regulations. The document outlines the program’s background, implementation cycles, and environmental review process. -
1996-01-01Resolution No. 3212, as amended
★ 32Resolution No. 3212, adopted by the Port of Seattle in 1996, approved the construction of a new third runway at Seattle-Tacoma International Airport (Sea-Tac) to address growing air traffic demand and reduce delays caused by poor weather conditions. The resolution followed years of regional studies, environmental impact reviews, and public involvement, including findings that no feasible alternative airport sites existed in the four-county area. It also committed the Port to fulfilling additional noise reduction measures as required by Puget Sound Regional Council Resolution A-96-02. -
2026-08-20SAMP: The unSustainable Airport Master Plan — SEPA public comment flyer August extension
Advocacy flyer from Sea-Tac Noise.Info opposing the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), characterizing it as the 'UnSustainable Airport Master Plan' and warning of one-third more flights, noise, and pollution with no mitigation or compensation. The flyer announces a SEPA Public Comment period running May 22 through August 20, 2026, and directs the public to STNI.INFO/SAMP/ for updates. -
2026-07-16Joint letter from Burien, Des Moines, and SeaTac requesting extension of SAMP SEPA DEIS comment period
The city managers of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners requesting an extension of the public comment period for the Sustainable Airport Master Plan’s SEPA Draft Environmental Impact Statement from 60 to at least 120 days. The letter cites three independent grounds: extraordinary technical complexity, enormous document volume, and -
2026-07-16
Joint letter from Burien, Des Moines, and SeaTac requesting extension of SAMP SEPA DEIS comment period
The city managers of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners requesting an extension of the public comment period for the Sustainable Airport Master Plan’s SEPA Draft Environmental Impact Statement from 60 to at least 120 days. The letter cites three independent grounds: extraordinary technical complexity, enormous document volume, and -
2026-07-09Port of Seattle Commission Special Meeting – SEPA SAMP NTP Draft EIS Public Comment
The Port of Seattle Commission is holding a Special Meeting to gather public input on the Sustainable Airport Master Plan (SAMP) Near-Term Projects Draft Environmental Impact Statement (DEIS) — and your voice matters. This critical environmental review shapes the future of Seattle-Tacoma International Airport and surrounding communities, making public participation essential. Meeting begins at 4:00 p.m. with informational displays and staff available to answer questions, followed by an official public comment period from 4:30–6:00 p.m. where Commissioners will be present to hear testimony directly. Virtual sign-ups are accepted July 6–8, 2026, and written comments can be submitted via email. The meeting is also available to view or listen to online or by phone. -
2026-07-09
Port Of Seattle Commission special meeting agenda: SAMP NTP SEPA DEIS public comment
The Port of Seattle Commission held a special public meeting on July 9, 2026, at Seattle-Tacoma International Airport to receive official comments on the Draft Environmental Impact Statement (DEIS) for the Sustainable Airport Master Plan (SAMP) Near-Term Projects. Community members could participate in person, virtually, or by submitting written comments to SAMP@portseattle.org. The meeting was part of the State Environmental Policy Act (SEPA) review process, giving the public an opportunity to weigh in on planned airport development and its potential environmental impacts. -
2026-07-09
Port Of Seattle Commission special meeting agenda: SAMP NTP SEPA DEIS public comment
Agenda for a special meeting of the Port of Seattle Commission held at Seattle-Tacoma International Airport on July 9, 2026. The meeting focuses on the State Environmental Policy Act (SEPA) Sustainable Airport Master Plan (SAMP) Near-Term Projects (NTP) Draft Environmental Impact Statement (DEIS), with commissioners available to hear official public comments. The agenda outlines in-person, -
2026-06-24StART agenda: June 24, 2026
The StART (SEA Stakeholder Advisory Round Table) meeting scheduled for June 24, 2026, focuses on presenting findings from the State Environmental Policy Act (SEPA) Draft Environmental Impact Statement for Seattle-Tacoma International Airport's Sustainable Airport Master Plan Near-Term Projects, published May 22, 2026. The agenda includes a presentation by Port of Seattle environmental staff, an update on the Part 150 Noise Study and Aviation Noise Working Group, and a public comment period. The meeting is held via Zoom, with a tentative follow-up session planned for August 26, 2026. -
2026-06-21Des Moines Council SEPA questions 061126
The Des Moines City Council submitted a series of formal questions challenging the Port of Seattle's environmental review of its airport expansion plan, raising concerns about air quality, noise impacts, and community compensation. Key issues include the Port's heavy investment in Sustainable Aviation Fuel despite its limited near-term viability, the use of outdated federal noise standards, failed home noise-mitigation packages with no funding to repair them, and whether the SEPA review adequately analyzed hazardous air pollutants and peak traffic impacts. The Council also questioned whether the Port should provide direct financial assistance to affected neighboring cities, citing a state solicitor general opinion that such payments may be legally permissible.