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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.

TagSea-Tac Airport(2023)

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  • 2025-01-01

    City of Burien 2025 Federal Agenda

    The City of Burien's 2025 Federal Agenda outlines the city's lobbying priorities, including a strong focus on reducing the impact of Seattle-Tacoma International Airport on surrounding communities. Key airport-related goals include supporting the FAA Reauthorization Act to reduce airport noise and emissions, conducting a new SEA-TAC noise study, and securing funding from the Port of Seattle for airport-impacted communities. The agenda also addresses broader city priorities such as infrastructure funding, environmental initiatives, public safety, and housing policy.
    TagsCity of Burien, FAA Reauthorization, Highline Forum, legislative priorities, Sea-Tac Airport, SR509
  • 2025-01-01

    2025 Burien Federal Agenda pdf

    Official policy document from the City of Burien outlining its 2025 Federal Agenda, including lobbying priorities related to SEA-TAC Airport noise and emissions. Specific airport-related items include supporting the FAA Reauthorization Act with emphasis on reducing airport noise and emissions, conducting a new SEA-TAC Noise Study, supporting Aviation Impacted Community priorities, and increasing Sustainable Airport Master Plan Funding.
    TagsCity of Burien, FAA Reauthorization, Highline Forum, Noise Mitigation, Sea-Tac Airport
  • 2025-01-01

    City of Burien 2025 Federal Agenda

    Official policy document from the City of Burien outlining its 2025 Federal Agenda, including lobbying priorities related to SEA-TAC Airport noise and emissions. Specific airport-related items include supporting the FAA Reauthorization Act with emphasis on reducing airport noise and emissions, conducting a new SEA-TAC Noise Study, supporting Aviation Impacted Community priorities, and securing increased Sustainable Airport Master Plan Funding.
    TagsCity of Burien, FAA Reauthorization, Highline Forum, Noise Mitigation, Sea-Tac Airport
  • 2032 DNL ELU Nrb
    2025-01-01

    2032 DNL Noise Contours with Existing Land Use and Noise Remedy Boundary — Sea-Tac Airport

    This GIS map depicts the 2032 Day-Night Average Sound Level (DNL) noise contours (65, 70, and 75 dB) for Seattle-Tacoma International Airport (SEA), overlaid with generalized land use classifications and the current Noise Remedy Boundary. Sourced from the State of Washington (2024) and SEA SAMP, adapted by ESA in 2025, the map covers surrounding jurisdictions including Burien, SeaTac, Tukwila, Normandy Park, Des Moines, and unincorporated King County.
    TagsLand Use, Map, Noise Countour, Part 150, SAMP, Sea-Tac Airport
  • 2025-01-01

    SB 5652 Cover Page — Washington State 69th Legislature 2025 Session

    Senate Bill 5652, introduced by Senator Orwall in Washington State's 69th Legislature during the 2025 Regular Session, proposes reducing environmental and health disparities in large port districts by adding a new chapter to Title 53 RCW. The bill defines key terms including 'qualifying port district' as one authorized to undertake aircraft noise abatement programs under RCW 53.54.010, directly relevant to Sea-Tac Airport noise policy.
    TagsEnvironmental Justice, Legislation, Noise Mitigation, SB5652, Sea-Tac Airport, Washington State Legislature
  • 2025-01-01

    City of SeaTac state legislative agenda 2025

    The City of SeaTac's 2025 State Legislative Agenda outlines the city's top priorities and policy goals for the Washington State Legislature, with aviation impacts—including airport noise and soundproofing—listed as a leading concern. The City specifically urges the Legislature to allocate an additional $5 million to the Port District Equity Fund, established in 2024, to repair failed soundproofing in homes affected by Seattle-Tacoma International Airport noise. Additional priorities include fire service funding, public safety, affordable housing, and infrastructure investments tied to the city's unique role as host to the region's major international airport.
    TagsCity Of SeaTac, legislative priorities, local government funding, Sea-Tac Airport, state legislature
  • 2025-01-01

    Des Moines 2025 Legislative Priorities Document

    Official legislative priorities document from the City of Des Moines (Washington) City Council for 2025, covering public safety, funding requests, airport issues, historic preservation, and ferry development. Airport-related priorities include supporting a permanent air quality monitor, State funding for an independent airport community impacts study evaluating the SAMP, enhancements to SB5955 and RCW53 for sound insulation and public health mitigation, and the joint StART Airport Community Legislative Agenda.
    TagsCity Of Des Moines, Highline Forum, legislative priorities, SAMP, Sea-Tac Airport
  • 2025-01-01

    City of SeaTac state legislative agenda 2025

    The City of SeaTac's 2025 State Legislative Agenda outlines the city's top priorities and policy goals for the Washington State Legislature, with aviation impacts—including airport noise and soundproofing—listed as a leading concern. The City specifically urges the Legislature to allocate an additional $5 million to the Port District Equity Fund, established in 2024, to repair failed soundproofing in homes affected by Seattle-Tacoma International Airport noise. Additional priorities include fire service funding, public safety, affordable housing, and infrastructure investments tied to the city's unique role as host to the region's major international airport.
    TagsCity Of SeaTac, legislative priorities, local government funding, Sea-Tac Airport, state legislature
  • 2025-01-01

    Alaska Airlines Boeing 737 Aircraft Parked on Tarmac

    Multiple Alaska Airlines Boeing 737 aircraft are parked on the tarmac, with registration N613AS visible on the foreground aircraft. The planes display the Alaska Airlines livery including the airline's name and the distinctive Alaska Native face logo on the tail fins.
    Tagsaircraft, Alaska Air, Sea-Tac Airport
  • 2025-01-01

    StART Update-2025 SEA Reaches Record Passenger Numbers 2019 v 2024

    Bar chart published by Seattle-Tacoma International Airport (SEA) showing annual passenger counts from 2011 to 2024. The 2024 total of 52,640,716 passengers surpassed the previous record of 51,829,239 set in 2019, representing a 2% increase over the pre-pandemic peak.
    TagsForecast, Sea-Tac Airport, StART, Statistics

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
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    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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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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    "Appendix P: Mitigation and Minimization Measures: Seattle-Tacoma International Airport SEPA EIS for the Sustainable Airport Master Plan Near-Term Projects" — , 2026

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