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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

Tagcommunity engagement(226)

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  • 2026-07-15

    Sea-Tac Communities Plan: Plan Summary Brochure

    The Sea-Tac Communities Plan, jointly developed by the Port of Seattle and King County beginning in 1973, outlines strategies to improve compatibility between Sea-Tac International Airport and surrounding neighborhoods, with a focus on aircraft noise remedies, water quality improvements, and land use conversion. The plan identifies specific areas for outright property acquisition, purchase guarantees, and noise insulation programs affecting thousands of homes north and south of the airport. It also establishes policies for drainage management, community development, and long-term airport facility improvements to accommodate projected air traffic growth through 1993.
    CategoriesHistory Tagscommunity engagement, Flyer, King County, Noise Remedy Program, Port Of Seattle, Sea-Tac Communities Plan, Water QualityFolderThe blue sheet
  • 2026-07-14

    Community open house: Burien, Des Moines, and SeaTac demand equity for airport-impacted communities

    The cities of Burien, Des Moines, and SeaTac held a Community Open House to demand equity for communities impacted by Sea-Tac Airport, presenting concerns about a Draft Environmental Impact Statement (DEIS). The cities argue the DEIS fails to adequately address hazardous materials risks—including incomplete PFAS contamination mapping and insufficient evaluation of off-site pollution migration—and does not properly demonstrate how airport expansion affects nearby neighborhoods, parks, and land use. Key deficiencies identified include reliance on future regulatory compliance rather than current evidence, and a lack of clear analysis linking land use conclusions to technical findings.
    Tagscommunity engagement, Environmental Impact Statement, Land Use, PFAS, SAMPFolderFour City ILA
  • 2026-07-14

    Seattle Tacoma International Airport (SEA) Sustainable Airport Master Plan (SAMP) Draft Environmental Impact Statement (DEIS) community open house

    The City of Burien, Des Moines, and SeaTac co-hosted a Community Open House on July 14, 2026, to present the Draft Environmental Impact Statement (DEIS) for Seattle-Tacoma International Airport's Sustainable Airport Master Plan (SAMP). The meeting covered proposed airfield, terminal, cargo, and landside expansion projects, along with their potential environmental impacts on surrounding communities. Residents were invited to learn about next steps and submit public comments on the plan.
    Tagscommunity engagement, Environmental Impact Statement, Open House, SAMP, Sea-Tac AirportFolderFour City ILA
  • 2026 07 09 sm agenda pdf
    2026-07-09

    Port 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.
    CategoriesEvents, Transcripts Tagscommunity engagement, Environmental Impact Statement, Port Of Seattle Commission, SAMP, SEPA
  • 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.
    Tagscommunity engagement, Environmental Impact Statement, Port Of Seattle Commission, SAMP, SEPAFolder2026
  • 2026-07-01

    Tips for Providing Meaningful Public Comment on the Seattle-Tacoma SAMP Draft EIS

    This document provides guidance for residents near Seattle-Tacoma International Airport (SEA) on how to submit public comments about the Sustainable Airport Master Plan (SAMP) and its Draft Environmental Impact Statement before the July 21, 2026 deadline. It highlights key concerns including aircraft noise, air quality, traffic, and economic impacts on neighboring communities, with sample comment language residents can adapt. A central argument is that the standard DNL noise metric understates the real impact of a 20% increase in flight operations, and that supplemental noise metrics should be used to better reflect residents' daily experiences.
    Tagscommunity engagement, Environmental Impact Statement, Part 150, SAMPFolderComments
  • Img 4716 f3da742
    2026-06-28

    Cedarhurst Neighborhood: Opposing Industrial Rezoning in Burien

    Building Community support with Neighbors Building Community support with Neighbors Building Community support with Neighbors What is this all about anyway?     Coming together to help our neighborhood Our platform aims to foster a strong community identity, which celebrates the unique and charming aspects of our Cedarhurst Neighborhood. We are nestled within the larger
    CategoriesFrom The Web TagsCity of Burien, community engagement, Land Use, Noise, pollution, Port Of Seattle
  • June 24, 2026 img 0710 1500x844 web
    2026-06-23

    Port of Seattle Awards Record $850K for Community-led Environmental Improvements

    June 24, 2026 This press release is available in 11 languages: Amharic, Dari, French, Korean, Russian, Simplified Chinese, Somali, Spanish, Tagalog, Ukrainian, and Vietnamese. በአማርኛ አንብብ (PDF) Af -Soomaali ku akhri (PDF) به زبان دری بخوانید (PDF) Leer en español (PDF) Lire en français (PDF) Basahin sa Tagalog (PDF) 한국어로 읽기 (PDF) Читайте українською (PDF)
    CategoriesFrom The Web TagsCity of Burien, City Of Des Moines, community engagement, Environment, Port Of Seattle, Port Of Seattle Commission
  • Skm lettertotheeditor2023 2
    2026-06-22

    LETTER TO THE EDITOR: Airport advisory leaders urge residents to speak out about Sea-Tac expansion – The Waterland Blog

    EDITOR’S NOTE: The following is a Letter to the Editor, written and submitted by a verified resident. It represents the opinion of the author, and does not necessarily reflect the views of South King Media or its staff.] Dear Neighbors: You will have the chance this week to engage with personnel from the Port of
    CategoriesCorrespondence, From The Web TagsBAC, community engagement, SAMP, Waterland Blog
  • Https3a2f2fcloudfront us east 1.images.arcpublishing.com2fcmg2fohqcp4oj55fw3i5b3ejfg2lfx4
    2026-06-08

    KIRO7: Public weighs in on Port of Seattle Sustainable Airport Master Plan

    It’s no secret that the Puget Sound region is growing. To keep up with the increasing demands, The Port of Seattle created the Sustainable Airport Master Plan, a blueprint for Seattle-Tacoma International Airport to address the increasing volume of passengers and cargo. The public can now comment on the draft environmental impact statement, available here.
    CategoriesFrom The Web, News Stories TagsCity of Burien, community engagement, Des Moines, Environmental Impact Statement, KIRO7, Noise, Sustainable Airport Master Plan

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
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