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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.

TagCity Of Des Moines(214)

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  • Uwdeohs logo banner
    2026-09-26

    Des Moines Air Quality Monitoring Station (AQMS)

    The Des Moines Air Quality Monitoring Station (AQMS) will provide long-term, community-centered measurements of ultrafine particles and other air pollutants south of Sea-Tac Airport. Building on UW’s Mobile ObserVations of Ultrafine Particles (MOV-UP) study, the station will help distinguish local aircraft-related pollution from broader regional sources. The station at a glance < 100 nm Ultrafine
    CategoriesFrom The Web TagsAir Quality Monitors, City Of Des Moines, Ultrafine Particles, UWDEOHS
  • 2026-08-30

    First Amendment to the Interlocal Agreement Between the Cities of Burien, Des Moines, Normandy Park and Sea-Tac for Environmental Review of the Sea-Tac Airport Sustainable Airport Master Plan

    This document is a First Amendment to an Interlocal Agreement between the cities of Burien, Des Moines, Normandy Park, and SeaTac for the environmental review of the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), originally dated March 6, 2018. The amendment updates Paragraph 7 to clarify that contract management responsibilities — including consultant oversight, invoice coordination, and meeting arrangements — shall be administered by the City of Des Moines. All other terms of the original agreement remain unchanged, and the amendment was signed by authorized representatives of all four cities in 2020.
    TagsCity of Burien, City Of Des Moines, City of Normandy Park, Interlocal Agreement, SAMPFolderPDR26-042 Burien
  • SAMP review ILA 1st amendment pdf
    2026-08-30

    First Amendment to the Interlocal Agreement Between the Cities of Burien, Des Moines, Normandy Park and Sea-Tac for Environmental Review of the Sea-Tac Airport Sustainable Airport Master Plan

    This document is a First Amendment to an Interlocal Agreement between the cities of Burien, Des Moines, Normandy Park, and SeaTac for the environmental review of the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), originally dated March 6, 2018. The amendment updates Paragraph 7 to clarify that contract management responsibilities — including consultant oversight, invoice coordination, and meeting arrangements — shall be administered by the City of Des Moines. All other terms of the original agreement remain unchanged, and the amendment was signed by authorized representatives of all four cities in 2020.
    TagsCity of Burien, City Of Des Moines, City of Normandy Park, Interlocal Agreement, SAMPFolderPDR26-042 Burien
  • 2026-08-20

    Comments from Sea-Tac, Burien, and Des Moines on the SEPA Draft EIS for Sea-Tac Airport SAMP NTP

    Joint comment letter filed August 20, 2026 by the Cities of SeaTac, Burien, and Des Moines to Port Of Seattle Senior Environmental Program Manager Steve Rybolt on the Draft SEPA Environmental Impact Statement (DEIS) for the Sustainable Airport Master Plan Near-Term Projects (SAMP NTPs) at Seattle-Tacoma International Airport (SEA). The letter documents cross-cutting deficiencies in
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, SAMP, SAMP Draft SEPA EIS, SAMP Four City ILA, SEPAFolderComments
  • Des Moines Airport Advisory Committee — July 30, 2026

    The Airport Discount answers the wrong question This special meeting had no specific agenda, but leaned heavily on the following FAA-funded study, concerning the negative impacts of aircraft noise on property values. NBER: How Airplane Noise Impacts Home Values – October, 2025 Studying this seems so common-sense we completely understand the ongoing appeal. But the
    CategoriesMeetings, News Stories, Transcripts TagsAirport Committees, City Of Des Moines, Property Values
  • 2026-07-16

    Joint letter from Burien, Des Moines, and SeaTac requesting extension of SAMP SEPA DEIS comment period

    In July 2026, the city managers of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners demanding that the public comment period for the Sustainable Airport Master Plan's Draft Environmental Impact Statement be extended from 60 to at least 120 days. The cities argued that the document's enormous size (over 6,000 pages), technical complexity, and missing underlying data made meaningful review within 60 days impossible, particularly for lower-resource community members most affected by airport impacts. The letter also called on the Port to honor its own equity commitments by ensuring historically overburdened communities surrounding the airport have a genuine opportunity to participate in the review process.
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, Port Of Seattle, SAMP Draft SEPA EIS, SEPAFolderFour City ILA
  • 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
  • 2026-06-18

    (Draft) Joint letter from City of Burien, City of Des Moines, and City of SeaTac to Port Of Seattle Commissioners regarding SAMP environmental review

    The mayors of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners in 2026 to challenge the claim that airport expansion projects outlined in the Sustainable Airport Master Plan (SAMP) would have no significant impact on neighboring communities. The letter highlights concerns about aircraft noise, air pollution, traffic, and disproportionate burdens on historically disadvantaged residents living closest to the airport. The cities also demand that the public comment period for the Draft Environmental Impact Statement be extended from 60 to at least 120 days to allow for meaningful community review.
    CategoriesMeetings TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, SAMPFolderBurien
  • June 11 2026 city council meeting agenda packet pdf
    2026-06-11

    Des Moines City Council Regular Meeting

    Call to Order Pledge of Allegiance Roll Call Correspondence Not Previously Received by Council Comments from the Public Regional Committee Report City Manager Report/Presentations/Briefings Item 1. 2027 South King Housing and Homelessness Partners (SKHHP) Work Plan and Budget Presentation – 15 Minutes Presentation by: Dorsol Plants, SKHHP Program Manager Item 2. Port of Seattle Presentation
    CategoriesEvents Tagscity council, City Of Des Moines, Housing, Port Of Seattle
  • June 11 2026 city council meeting agenda packet pdf
    2026-06-11

    Des Moines City Council Regular Meeting June 11, 2026

    Call to Order Pledge of Allegiance Roll Call Correspondence and Public Comments Correspondence Not Previously Received by Council Comments from the Public Regional Committee Report City Manager Report/Presentations/Briefings 2027 South King Housing and Homelessness Partners (SKHHP) Work Plan and Budget Presentation – 15 Minutes Presentation by: Dorsol Plants, SKHHP Program Manager Port of Seattle Presentation
    CategoriesEvents, Meetings, Transcripts TagsCity Of Des Moines, Housing, Port Of Seattle, SAMP Draft SEPA EIS

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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.
continue...

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