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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(2025)

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  • Aerial View of Sea-Tac Airport Showing Terminal, Gates, and Noise-Contour Boundary Line

    Aerial photograph looking north over Seattle-Tacoma International Airport, showing the main terminal, gates with Alaska Airlines and other carrier aircraft, taxiways, and surrounding grounds. A red line is drawn on the image demarcating what appears to be a property or noise-contour boundary on an undeveloped grass area south of the airport perimeter road, adjacent to a light rail line and parking area.
    TagsAirport Expansion, Alaska Air, Noise Boundary, Sea-Tac Airport
  • Red Border Public Art Installation at Sea-Tac Airport

    A winding red fabric or painted pathway installation runs along a dry grassy hillside berm at Sea-Tac Airport. Alaska Airlines aircraft and terminal buildings, including the air traffic control tower, are visible in the background.
    TagsAlaska Air, Sea-Tac Airport, Sex Trafficking, Sky Art
  • 2023-10-02

    Fred Felleman speaking at podium

    Fred Felleman speaking at a podium, October 2023, identified from the original filename; background signage partially reads Electric Commission/Coalition (not fully legible).
    CategoriesPeople TagsFred Felleman, Port Of Seattle Commission, Sea-Tac Airport
  • 2023-09-28

    Comment letter on FAA review of civil aviation noise policy (FAA–2023–0855)

    The Port of Seattle and six neighboring cities (SeaTac, Burien, Des Moines, Normandy Park, Tukwila, and Federal Way) submitted comments to the FAA in September 2023, urging updates to federal aviation noise policy in response to growing community concerns around Seattle-Tacoma International Airport. The letter highlights collaborative efforts already underway, including a Fly Quiet Program and Late-Night Noise Limitation Program, which have significantly reduced overnight flight activity on the runway closest to residential areas. The signatories call on the FAA to modernize its noise metrics, lower noise thresholds, and take a broader approach to reducing aircraft noise and emissions rather than simply measuring and disclosing them.
    CategoriesCorrespondence TagsFAA, Port Of Seattle, Sea-Tac Airport, StART
  • 2023-09-26

    SAMP Near Term Projects EA: Scoping Comments Received (Attachment 4a-c)

    This document compiles public and agency scoping comments received during the environmental review process for Seattle-Tacoma International Airport's SAMP (Sustainable Airport Master Plan) Near Term Projects. Comments are organized into 22 topical categories, covering issues such as noise, air quality, transportation, water resources, and human health, and are labeled to indicate whether they directly relate to the SAMP Near Term Projects or address broader airport concerns. Each comment is coded for easy reference, allowing readers to track specific concerns raised by the public and agencies throughout the scoping process.
    TagsEnvironmental Review, NEPA, SAMP, Scoping documents, Sea-Tac Airport
  • 2023-09-26

    Attachment 4f: Scoping Comments Received — Actual Comments with Assigned Topic Code

    This document contains scoping comments submitted to the Port of Seattle regarding the Sustainable Airport Master Plan (SAMP) environmental review process, compiled by the Quiet Skies Coalition. Community members raised concerns about the lack of long-term human health and environmental impact studies related to aircraft noise and emissions, questioning why the Port had not studied the effects of a four-year increase of 97,000 additional annual flights. The comments request comprehensive assessments covering neighborhoods such as Des Moines, Burien, Tukwila, and Normandy Park, and call for the Port to include worldwide scientific studies on the health effects of aircraft noise and pollution in its environmental review.
    TagsEnvironmental Impact Statement, NEPA, Noise, SAMP, Scoping documents, Sea-Tac Airport
  • 350 Seattle Infographic on Aviation Emissions and Sea-Tac Airport Environmental Justice

    An infographic published by 350 Seattle detailing aviation's environmental impact, including projected emissions growth to +1200% by 2050, environmental justice concerns around Sea-Tac Airport, and the claim that commercial aviation produced 918 million metric tons of CO2 in 2018. The infographic includes a map showing the 3km and 10km pollution radius around Sea-Tac Airport and calls for a reduction in aviation to meet climate goals.
    Tags350 Seattle, Aviation Emissions, Climate, Environmental Justice, Sea-Tac Airport
  • 2023-09-15

    Aircraft Approach with Airport Landing Lights

    A twin-engine wide-body commercial aircraft, landing gear deployed, descends toward a runway in overcast/foggy conditions. Visible below are standard ALSF (Approach Lighting System with Sequenced Flashers) runway approach lights on red stanchions, consistent with a major commercial airport instrument landing setup.
    TagsAir Traffic Control, aircraft, Airports, Sea-Tac Airport
  • 2023-09-08

    Airport Observation Deck Scene

    A United Airlines aircraft (appearing to be a Douglas DC-8) taxis on the runway at Sea-Tac Airport, as seen from the public observation deck. A woman in a red coat and matching handbag leans over the railing, likely with a child, watching the aircraft. Watermark reads leonotenboom.com.
    CategoriesHistory Tagsaircraft, Airways Magazine, History, Sea-Tac Airport
  • Appendix a forecast and operational assumptions 2 pdf
    2023-09-01

    Aviation Activity Forecast Update: Seattle-Tacoma International Airport (2023)

    This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes Constrained Operating Growth Scenarios (COGS), FAA approval of the forecast update, and airside modeling documentation used to support environmental review. The forecast and operational assumptions outlined in this document serve as the foundation for planning future airport capacity and assessing potential noise and environmental impacts.
    TagsForecast, Leigh-Fisher, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master Plan

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  • 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

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    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
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    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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