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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.
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  • 2020-02-28

    Study of the current and ongoing effects of the operation of the Seattle-Tacoma International Airport

    ★ 32
    This draft report, prepared by Stantec and Ricker Cunningham for the Washington State Department of Commerce under ESSB 6032, examines the current and ongoing effects of operating Seattle-Tacoma International Airport (Sea-Tac). It covers the airport's broader impacts on surrounding communities, likely including noise, land use, and environmental concerns. The report was released in draft form on February 28, 2020, for review and comment only, and was not intended for final distribution at that time.
    CategoriesKey Documents TagsCommerce Impacts Study 2018, Department Of Commerce, Stantec, StudiesFolderState
  • 2026-08-28

    Housing & Human Services Background Report Appendices: Appendix A — Sea-Tac 2024 Comprehensive Plan Land Capacity Analysis Methodology and Results Report

    This document is a Land Capacity Analysis Methodology Report prepared as part of SeaTac's 2044 Comprehensive Plan update, focusing on housing and jobs growth targets rather than airport noise policy. It outlines SeaTac's requirement to accommodate 5,900 new housing units and 14,810 new jobs between 2019 and 2044, with housing targets broken down by income levels based on King County's Area Median Income (AMI). The report addresses affordable housing planning requirements under Washington State law, including provisions for permanent supportive housing and emergency housing for vulnerable populations.
    TagsCity Of SeaTac, Comprehensive Plan, Department Of Commerce, Housing, King CountyFolderComprehensive Plan
  • 5xxa landcapacityanalysisfindings pdf
    2026-08-28

    Housing & Human Services Background Report Appendices: Appendix A — Sea-Tac 2024 Comprehensive Plan Land Capacity Analysis Methodology and Results Report

    This document is a Land Capacity Analysis Methodology Report prepared as part of SeaTac's 2044 Comprehensive Plan update, focusing on housing and jobs growth targets rather than airport noise policy. It outlines SeaTac's requirement to accommodate 5,900 new housing units and 14,810 new jobs between 2019 and 2044, with housing targets broken down by income levels based on King County's Area Median Income (AMI). The report addresses affordable housing planning requirements under Washington State law, including provisions for permanent supportive housing and emergency housing for vulnerable populations.
    TagsCity Of SeaTac, Comprehensive Plan, Department Of Commerce, Housing, King CountyFolderComprehensive Plan
  • 2026-02-09

    SB 5898 – S COMM AMD by Committee on Ways & Means

    Washington Senate Bill 5898 proposes redirecting a portion of the state's hazardous substance tax on aircraft fuel to fund noise relief for communities near airports. Specifically, 25 percent of those tax proceeds would go into a new "state aircraft noise mitigation account," with the remaining 75 percent continuing to flow to the aeronautics account as before. The Department of Commerce would administer a grant program using these funds to support noise mitigation strategies in communities located within designated aviation impact areas, with the law taking effect July 1, 2027.
    TagsAviation Fuel, Department Of Commerce, Noise Mitigation, SB5898, Washington State LegislatureFolderLegislation
  • 2026-01-26

    SB5652 – S-4461.1/26 AN ACT Relating to reducing environmental and health disparities and improving the health of Washington state residents in large port districts

    Washington state legislation (PSSB 5652) establishing partnerships and grant programs to address aviation-related air quality and noise impacts on communities near airports. The bill requires the University of Washington to develop exposure maps and assess health impacts, directs the State Auditor to evaluate noise mitigation retrofits, and creates a mitigation grant program administered by the
    TagsDepartment Of Commerce, Legislation, SB5652, University Of WashingtonFolderSB5652
  • 2024-03-13

    Final Bill Report: E2SSB 5955 — Mitigating Harm and Improving Equity in Large Port Districts

    Washington State E2SSB 5955 creates the Port District Equity Fund to help large port districts, such as the Port of Seattle, repair or replace failing aircraft noise mitigation equipment in nearby homes and properties. The Department of Commerce administers the grant program, which requires port districts to match at least half of state funding, and mandates annual public reporting on inspections and repairs. The program is set to expire July 1, 2029, with a legislative audit review, and will be fully repealed by July 1, 2030.
    TagsDepartment Of Commerce, Legislation, Noise Mitigation, SB5955, Sea-Tac Airport, Washington State LegislatureFolderSB5955
  • 2024-02-21

    Multiple agency fiscal note summary: Bill 5955 E 2S SB, large port districts

    This is a fiscal note summary for Washington State Senate Bill 5955, which concerns large port districts. The document estimates operating expenditures primarily from the Department of Commerce, ranging from approximately $113,104 in the 2023-25 biennium to $114,136 in subsequent biennia, along with capital budget costs starting at $86,586. The Office of State Treasurer notes non-zero but indeterminate cash receipt impacts, while other agencies such as the Department of Revenue and Department of Ecology report no fiscal impact.
    TagsDepartment Of Commerce, local government funding, SB5955, Washington Ports, Washington State LegislatureFolderSB5955
  • 2024-02-20

    Bill Analysis: E2SSB 5955 – Mitigating Harm and Improving Equity in Large Port Districts

    Washington State bill E2SSB 5955 creates a grant program, running through July 1, 2029, managed by the Department of Commerce to help large port districts — primarily the Port of Seattle, which operates Sea-Tac Airport — repair or replace faulty noise mitigation equipment installed in nearby homes, and address any structural damage caused by that equipment. Port districts can hire building inspectors or partner with their county to inspect affected properties, and must apply for grant funds when inspections reveal problems. The Joint Legislative Audit and Review Committee will review the program's effectiveness by July 1, 2028.
    CategoriesLegislation TagsDepartment Of Commerce, Legislation, Noise Mitigation, Port Of Seattle, Port Package Program Updates, SB5955, Washington State LegislatureFolderSB5955
  • 2024-02-20

    House Bill Analysis: E2SSB 5955 – Mitigating Harm and Improving Equity in Large Port Districts

    Washington State Bill E2SSB 5955 creates a grant program, running through July 1, 2029, managed by the Department of Commerce to help port districts — primarily the Port of Seattle, which operates Sea-Tac Airport — repair or replace faulty noise mitigation equipment installed in nearby homes, and to fix any structural damage caused by that equipment. The program is funded through a new 'port district equity fund' drawing from legislative appropriations, local government contributions, and private donations. An independent review by the Joint Legislative Audit and Review Committee is required by July 1, 2028, to assess how many homes have been remediated and how many still need attention.
    TagsDepartment Of Commerce, Legislation, Noise Mitigation, Port Of Seattle, SB5955, Washington State LegislatureFolderSB5955
  • 2024-02-03

    Senate bill report SB 5955: Mitigating harm and improving equity in large port districts

    Washington Senate Bill 5955 proposes creating a 'port district equity fund' to help large port districts—such as the one operating Sea-Tac Airport—pay for aircraft noise mitigation programs. The fund would be seeded with a $10 million appropriation for fiscal year 2025 and subsequently replenished by sales and use tax revenue collected on capital construction projects at the airport, with the port district required to match at least half of state-provided funds. The Department of Commerce would administer grants from the fund to cover costs such as inspecting and repairing soundproofing equipment in nearby homes and addressing any structural damage caused by its installation.
    TagsDepartment Of Commerce, Noise Abatement Procedures, Noise Mitigation, SB5955, Washington State LegislatureFolderSB5955

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[See all...]


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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.
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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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