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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(2026)

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  • 2022-10-26

    StART Meeting 11 Slide: Commitment to SBTi and Net Zero by 2050 (2022-10-26)

    A Zoom Webinar screenshot showing a PowerPoint slide titled 'Commitment to SBTi and Net Zero by 2050,' presented during StART (Sea-Tac Airport Roundtable) Meeting 11 on 2022-10-26. The slide outlines short-term (10% SAF by 2030), medium-term (science-based targets aligned with aviation guidance), and long-term (net zero 2050 across the entire value chain) emissions goals, with a chart showing projected absolute emissions reductions via Fleet Renewal, Operational Improvements, and SAF. Participant Stephanie Zhu is visible in the video thumbnail.
    TagsAviation Emissions, Sea-Tac Airport, StART, Sustainable Aviation Fuels, webinar
  • 2022-10-26

    Scott Coughlan Presenting Environmental Sustainability Targets at StART Meeting 11 — October 26, 2022

    A Zoom webinar screenshot shows Scott Coughlan presenting a PowerPoint slide titled 'Environmental Sustainability Targets' during StART (Sea-Tac Airport Roundtable) Meeting 11 on October 26, 2022. The slide lists six sustainability goals including net zero carbon emissions by 2040, becoming the most fuel-efficient US airline, reducing ground service equipment emissions 50% by 2025, and balancing 100% of operational water use through habitat restoration.
    TagsPresentation, Sea-Tac Airport, StART, webinar
  • Port Package Program Air Filtration Filter

    TagsNoise Mitigation, Port Packages, Sea-Tac Airport
  • 2022-10-07

    Airport Noise Report, Vol. 34 No. 33: Port Of Seattle sued over public health study records; AICA urges REDAC to support six noise research proposals; Eviation Alice first flight

    A Seattle attorney sued the Port of Seattle in September 2022 to force disclosure of a fully redacted consultant report examining public health impacts—including noise, air pollution, and higher rates of disease—on communities within 10 miles of Seattle-Tacoma International Airport. Separately, the Aviation-Impacted Communities Alliance urged a federal advisory committee to support six research proposals challenging the FAA's longstanding 65 DNL noise threshold, which new survey data suggests dramatically understates the number of people harmed by aircraft noise. The issue also covers the first successful test flight of Eviation's all-electric nine-passenger Alice aircraft in Moses Lake, Washington.
    TagsAEDT, AICA, Airport Noise Report, Aviation Impacted Communities Alliance, Cyndi Christianson, NextGen, Port Of Seattle, Ramboll, RE&D Advisory Committee, Sea-Tac Airport, Steve Edmiston
  • 2022-10-02

    Seattle Tacoma International Airport Exhibit ‘A’ property acquisition data table

    This document is a detailed property acquisition data table for Seattle-Tacoma International Airport, compiled by the Port of Seattle in October 2022. It records every parcel of land acquired for airport development, including the original owners, dates of transfer, acreage, type of deed, and federal grant programs—such as the Federal-Aid Airport Program (FAAP) and Airport Development Aid Program (ADAP)—that funded each purchase. The table serves as an official legal and historical record of how the airport's property holdings were assembled over decades, primarily from the 1950s through the 1960s.
    TagsSea-Tac Airport
  • Port Of Seattle Noise Remedy Program — Hand-Drawn Floor Plan for Single-Family Residence

    A hand-drawn floor plan sketch produced under the Port of Seattle Noise Remedy Program, showing a single-family residence with labeled rooms including a garage (N/C), kitchen, dining room, living room, utility room, bathroom, and four bedrooms (BR1–BR4, with BR3 and BR4 noted as 'slant' roof areas). Numbered triangular symbols throughout the plan indicate window or door treatment locations; the address and drawn-by fields are redacted.
    TagsNoise Remedy Program, Port Packages, Sea-Tac Airport, Sound Insulation
  • Port Of Seattle Noise Remedy Program Floor Plan Sketch (No. S-8283)

    A hand-drawn floor plan sketch (No. S-8283, Sheet 1 of 1) produced under the Port of Seattle Noise Remedy Program. The residence contains four bedrooms (BR1–BR4, with BR3 and BR4 noted as 'slant' ceiling), a living room, dining room, kitchen, utility room, bathroom, closet, fireplace, and an attached garage marked 'N/C' (not conditioned); numbered triangular symbols indicate window/door treatment locations.
    TagsNoise Remedy Program, Port Packages, Sea-Tac Airport, Sound Insulation
  • Port Package Program Photo

    TagsNoise Mitigation, Port Packages, Sea-Tac Airport
  • Port Package Program — Interior Photo (HDR)

    TagsPort Packages, Sea-Tac Airport, Sound Insulation
  • Port Package Program Document

    TagsPort Packages, Sea-Tac Airport

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
    Zoom (Virtual Meeting)
    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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