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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.

TagAirport Communities Coalition(279)

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  • 2025-10-27

    Community Panel Discussion Event

    A panel of approximately seven speakers seated on a stage addresses a small audience in a community hall or civic center. A large TV monitor to the left of the stage displays a remote video participant alongside what appears to be a presentation slide, though the text is not legible at this resolution.
    CategoriesEvents TagsActivism, Airport Communities CoalitionFolderGroups
  • 2025-10-03

    UFP-Advisory-Group-Meeting-2025.10

    Meeting minutes from the UFP Advisory Group discussing research priorities for ultrafine particle health effects, mitigation strategies, and exposure reduction in aviation-impacted communities. Participants included University of Washington researchers, public health officials, school district representatives, and community leaders focusing on air quality and health impacts near Sea-Tac Airport.
    CategoriesMeetings, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, Aviation EmissionsFolderUWDEOHS
  • 2025-02-14

    Washington State Air Pollution Map – Airport Communities

    A map of Washington State identifying 16 communities with elevated cumulative criteria air pollution levels, including locations such as Spokane, Tacoma, Seattle, Yakima Valley, and Vancouver. The map uses a shading gradient to indicate highest to lowest pollution levels, with numbered red markers pinpointing each named community.
    CategoriesExplainers, Resources TagsAir Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, airport issues, Airports, Aviation EmissionsFolderEcology
  • 2024-11-07

    Community Meeting or Public Event

    A bald man in a purple shirt and gray hoodie raises his fist at what appears to be a union or community meeting, with a number '12' sign visible in the background along with media cameras and a crowd of attendees.
    CategoriesEvents, Meetings TagsActivism, Airport Communities CoalitionFolderBoeing
  • 2024-10-12

    Hold The Line Protest

    A man holding a megaphone and an orange sign reading 'HOLD THE LINE!' pickets outside a Boeing facility, visible by the Boeing logo on a building in the background. This appears to be a labor strike action by Boeing workers.
    CategoriesChange The Culture, Events TagsActivism, Airport Communities Coalition, BoeingFolderBoeing
  • 2024-08-13

    Community Information Session or Public Meeting Display

    A group of people gather outdoors on a gravel surface to review mounted display boards showing aerial maps and project renderings. A green-draped information table is visible, along with a concrete retaining wall or stairway structure in the background surrounded by wooded vegetation.
    CategoriesEvents, Meetings TagsActivism, Airport Communities CoalitionFolderDes Moines Creek
  • 2024-07-27

    Meeting or Conference Session

    A panel of at least four individuals seated at a skirted table with name placards and microphones, while a woman presents at a wooden podium. A large screen displays what appears to be a remote video conference feed of the same or a related meeting room; the screen taskbar text partially reads 'Commercial Aviation Work Group Meeting.'
    CategoriesEvents, Meetings TagsAirport Committees, Airport Communities Coalition, Port Of SeattleFolderCAWG
  • 2024-07-23

    JFK/LGA Community Aviation Roundtable – July 23rd Meeting

    Flyer from the Northwest Bayside Civic Association (NBCA) calling residents of Queens and Nassau County to a JFK/LGA Community Aviation Roundtable on Wednesday, July 23rd, 7–9 PM via Zoom. The flyer includes a QR code for joining and the organization's website, northwestbaysidecivic.com.
    CategoriesEvents, Meetings TagsActivism, Airport Committees, Airport Communities CoalitionFolderNew York
  • 2024-01-19

    Press Conference or Official Announcement

    A group of approximately 15 people gathered at a wooden podium during a formal press conference. The Washington State flag (green) and U.S. flag are visible in the background, suggesting this is a Washington State government venue, likely the Capitol building in Olympia.
    CategoriesEvents, Press Release TagsActivism, Airport Communities Coalition, Legislation, SB5955FolderSB5955
  • 2023-07-22

    Making Sea-Tac Airport accountable

    This community newsletter from the RCAA (Residents for a Cleaner Airport Area) outlines how Highline-area communities near Seattle's Sea-Tac Airport have held the Port of Seattle accountable for noise, water pollution, and runaway construction costs on a proposed third runway. Key victories include a $150 million noise-mitigation settlement for Highline schools, a court-ordered halt to third-runway construction due to unmet environmental permit requirements, and improved water quality in local streams. The document urges residents to stay engaged, warning that the Port continues to pursue runway expansion despite being $3 billion in debt and facing ongoing legal and environmental challenges.
    TagsAirport Communities Coalition, Highline Schools, Port Of Seattle, RCAA, Third RunwayFolderRCAA

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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.
read more...

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.
continue...

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