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STNI
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.

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  • 2022-11-28

    Aircraft Approaching Airport Landing System

    Image shows a commercial aircraft on approach to landing, passing through airport approach lighting and guidance systems. The aircraft appears to be a four-engine wide-body jet flying beneath red and white airport infrastructure including approach lights and navigation equipment.
    TagsAir Traffic Control, aircraft, Airport
  • 2022-11-19

    Alaska Airlines Aircraft at Airport Tarmac

    Airport scene showing multiple Alaska Airlines aircraft parked at gates with ground service equipment. One aircraft is visible taking off or landing in the background. The image captures typical commercial aviation operations at what appears to be a major airport facility.
    Tagsaircraft, Airline Industry, Airport, Alaska Airlines
  • 2022-08-20

    Waterfront Community with Aviation Infrastructure

    Image shows a waterfront community with residential buildings, beach area, and forested hills in the background. Several people are visible on the beach, and the scene appears to be in the Pacific Northwest region near what could be an airport-impacted community.
    Tagsaircraft, Airport, airport issues
  • 2022-08-20

    The Effect of Occupational Exposures to Aircraft Ultrafine Particles on Acute Cardiorespiratory Health, and Control Using Personal Protective Equipment

    A University of Washington thesis presentation by Mariah Dittmore examining the short-term cardiorespiratory health effects of exposure to aircraft-related ultrafine pollution in communities. The research builds on previous studies showing increased inflammatory markers from aircraft pollution exposure.
    CategoriesKey Documents TagsAcademic Journals, Air Quality Monitors, aircraft, Airport, Atmosphere, Aviation Emissions
  • 2022-06-01

    Everett Link Extension – EVLE Level 2 Station & Alignment Alternatives

    Sound Transit map showing the Everett Link Extension Level 2 station and alignment alternatives. The map displays representative station alternatives and other alignment options connecting Everett to West Alderwood, including stops at SW Everett Industrial Center, SR 99/Airport Road, Mariner, and Ash Way.
    CategoriesKey Documents TagsAirport, Airport Expansion
  • 2021-12-24

    Master Plan Stakeholder Committee

    A comprehensive list of stakeholders and their representatives for a Master Plan Stakeholder Committee, including representatives from Boeing, FAA, airlines, local government districts, education institutions, and aviation organizations. The document also includes staff and consultant information with airport directors and operations personnel.
    CategoriesKey Documents TagsAirport, Airport Committees, Airports, Aviation Committees, Boeing
  • 2021-10-01

    Ground Noise Study Progress Update

    A progress update presentation on a ground noise study conducted at Seattle-Tacoma International Airport (SEA) in October 2021. The document covers acoustic terminology including sound measurement metrics, sound propagation principles, scope of work, noise monitoring procedures, and next steps for the ongoing study.
    CategoriesKey Documents TagsAirport, Airport Noise Report, Airports, Aviation Noise & Emissions Symposium
  • 2020 08 11 RM 6G Pdf
    2020-08-11

    Miller Creek Culvert Replacement, Fish Passage and Stream Restoration

    Port of Seattle Commission agenda memorandum requesting authorization for the Executive Director to execute an Interlocal Agreement with the City of Burien, contributing $800,000 toward a $3.5 million project to divert Miller Creek, abandon a failing stream culvert, and construct fish-passable culverts along 450 linear feet of restored stream habitat on Port property to protect
    CategoriesKey Documents TagsAirport, Clean Water Act, Port Of Seattle, Third Runway
  • 2020 08 11 RM 6G Supp Pdf
    2020-08-11

    Miller Creek Culvert Replacement, Fish Passage and Habitat Restoration Interlocal Agreement and Funding Authorization

    Port of Seattle document regarding Miller Creek culvert replacement project focused on fish passage and habitat restoration. This appears to be an interlocal agreement and funding authorization for environmental restoration work.
    CategoriesKey Documents TagsAirport, Port Of Seattle
  • 2020-08-11

    Miller Creek Culvert Replacement, Fish Passage and Stream Restoration

    Port of Seattle Commission agenda memorandum requesting authorization for the Executive Director to execute an Interlocal Agreement with the City of Burien, contributing $800,000 toward a $3.5 million project to divert Miller Creek, abandon a failing stream culvert, and construct fish-passable culverts along 450 linear feet of restored stream habitat on Port property to protect
    CategoriesKey Documents TagsAirport, Clean Water Act, Port Of Seattle, Third Runway

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Upcoming Events

  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    **SAMP Environmental Review: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects

    **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives

    **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:** Public comment period opened for stakeholder input on airport development plans.

    [...]
  • KCIA Vision 2045 Open House
    Add to CalendarMThursday May 14, 5:30pm - 7:30pm
    KCIA Flight Service Station, 6526 Ellis Ave. S. Seattle, WA 98108
    Kcia Boeing Field Beautyshotkcia

    King County International Airport-Boeing Field is at a pivotal moment, developing comprehensive plans that will determine its operations through 2045. The airport's Vision 2045 Airport Plan and Part 150 Study represent crucial strategic initiatives to balance safe, efficient operations with evolving aviation demands and community needs.

    Join airport officials on Thursday, May 14 (5:30-7:30 p.m.) at the KCIA Flight Service Station to discover the preferred alternative for the airport's future development. This isn't just another planning meeting—it's your opportunity to understand how proposed projects and improvements will directly impact aviation services, local operations, and surrounding communities.

    The Vision 2045 plan incorporates extensive stakeholder feedback and addresses critical infrastructure needs for future demand. Meanwhile, the Part 150 Study focuses on noise compatibility programs, ensuring community concerns remain central to planning decisions.

    With environmental analysis nearing completion and submissions to King County Council and the FAA approaching, this open house offers essential insights into decisions that will shape regional aviation for decades.

    Visit KCIAplanning.com for updates.

    [...]

[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!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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