TagEnvironmental Impact Statement(400)

The Port of Seattle presented a Sustainable Airport Master Plan (SAMP) Near-Term Projects update to commissioners on May 26, 2026, covering both federal (NEPA) and state (SEPA) environmental review processes for planned expansions at Seattle-Tacoma International Airport. The projects include new terminals, taxiway extensions, cargo facilities, a fuel farm expansion, and other infrastructure improvements spread across the airport campus. The presentation outlined the completion of a Final Environmental Assessment and FAA Finding of No Significant Impact, as well as the next steps for a Draft SEPA Environmental Impact Statement and community outreach.

Appendix O is a placeholder section titled 'Agency & Public Engagement,' reserved for public comment and public engagement information that will be included in the final SEPA (State Environmental Policy Act) Environmental Impact Statement. No content has been populated in this draft version. The completed section will document how agencies and the public were involved in the environmental review process.

The Port of Seattle is preparing an Environmental Impact Statement (EIS) under Washington State's Environmental Policy Act (SEPA) for 31 near-term construction and improvement projects at Seattle-Tacoma International Airport (SEA). These projects, drawn from the airport's 2018 Sustainable Airport Master Plan, aim to improve passenger facilities, safety, efficiency, and airport access ahead of a projected 2032 completion date. The review follows a completed federal environmental assessment and addresses the region's growing air travel demand while evaluating potential environmental impacts and mitigation measures.

The Port of Seattle released a Draft Environmental Impact Statement (DEIS) under the State Environmental Policy Act (SEPA) for the Sustainable Airport Master Plan Near-Term Projects at Sea-Tac Airport, finding that surface transportation is the only category with significant impacts requiring mitigation. The review examined sixteen environmental categories including noise, air quality, and community impacts, with a 60-day public comment period running from May 22 to July 21, 2026, including in-person meetings in SeaTac, Burien, Des Moines, and Federal Way. A final SEPA determination is expected by the end of 2026.