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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.

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  • 1990-01-01

    ANCA Airport Noise and Capacity Act of 1990 cover page

    This is a page from the United States Code Annotated showing the Airport Noise and Capacity Act of 1990 (ANCA), Title 49, Subtitle VII, Chapter 475, Subchapter II. It includes Congressional findings (§ 47521) on aviation noise management and national noise policy, and definitions (§ 47522) including 'stage 3 noise levels' as defined in 14 CFR Part 36 effective November 5, 1990.
    TagsAirport Noise Capacity Act, Airport Noise Law, ANCA, Federal Aviation Administration, NoiseFolderFederal
  • 1988-10-25

    Resolution No. 3032: Amending Section IV of Resolution 3016 regarding the Noise Management Project for Seattle-Tacoma International Airport

    Resolution No. 3032, adopted by the Port of Seattle Commission on October 25, 1988, amends an earlier resolution (No. 3016) concerning noise management at Seattle-Tacoma International Airport. The key change gives the negotiating committee—known as the Joint Committee on Aircraft Overflights—the freedom to select their own neutral convener (mediator) from at least three interviewed candidates, rather than being restricted as under the previous rules. The chosen convener would be retained for up to four months to organize a mediation process, ensure all relevant parties are represented, and report regularly to the Port Commission on progress.
    TagsNoise, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolderNoise Mitigation
  • 1984-07-19

    Letter to Port Of Seattle Commissioners supporting acquisition on 26th Ave. South

    In July 1984, homeowners on 26th Ave. South near Seattle-Tacoma International Airport wrote to Port of Seattle Commissioners supporting the acquisition of their properties under the Noise Remedy program, citing increasing aircraft noise, growing industrial traffic hazards, and uncertainty that had delayed home maintenance. A separate letter from the Port's Director of Aviation to an airline captain acknowledged that non-compliance with existing noise abatement procedures — such as aircraft flying lower or turning sooner than prescribed — was a significant community concern, and noted that the Port was developing computer software using FAA radar data to automatically detect and report such violations.
    CategoriesCorrespondence TagsNoise, Noise Mitigation, Noise Remedy Update, Port Of Seattle, seatacFolderNoise Remedy Update
  • 1984-06-22

    Letter from United Airlines to Mr. Vernon L. Ljungren, Seattle-Tacoma Int’l Airport, Regarding Noise Abatement Procedures Survey

    In a June 22, 1984 letter to Seattle-Tacoma International Airport, United Airlines Vice President Captain M. E. Volz requested information about the airport's noise-sensitive areas and any formal or informal noise abatement procedures in place. The airline was conducting a survey of all airports it served in order to build a computer database of noise procedures accessible to pilots at any United Airlines terminal. United Airlines asked Sea-Tac to provide copies or descriptions of its noise procedures and to send future updates to the Flight Safety Department in Chicago.
    CategoriesCorrespondence TagsNoise, Noise Abatement Procedures, Sea-Tac Airport, seatac, United AirlinesFolderNoise
  • 1984-02-28

    FAA review letter on proposed Noise Remedy Program criteria and boundaries

    In this February 28, 1984 letter, the FAA's Northwest Mountain Region reviewed the Port of Seattle's proposed Noise Remedy Program for Sea-Tac Airport, raising concerns about the criteria used to add 44 homes to an acquisition program and 275 homes to a purchase assurance program. The FAA questioned whether the new criteria of 'buffer for airport-related development' and 'neighborhood continuity' were sufficiently justified, particularly for homes along 24th Avenue South. The agency urged that all criteria be reasonable, clearly documented, and tied to measured noise impacts, and cautioned against finalizing the purchase assurance plan before key federal policy questions were resolved.
    CategoriesCorrespondence TagsAirport Improvement Program, FAA, Noise, Noise Mitigation, Port Of Seattle, Sea-Tac AirportFolderNoise Remedy Update
  • 1983-09-28

    Policy Advisory Committee minutes, September 28, 1983

    Minutes from the September 28, 1983 Policy Advisory Committee meeting at Sea-Tac Airport cover updates on noise reduction efforts, including new aircraft departure procedures, expanded noise monitoring stations, and a study on noise insulation and building codes. The committee also reviewed the 20-year Airport Master Plan, which will identify surplus Port-owned land that could be repurposed for commercial development or parks, and received updates on facilities improvements such as a new taxi holding area, completed runway safety zones, and the expanded South Satellite International Terminal.
    TagsAdvisory Committees, Noise, Noise Mitigation, Noise Remedy Update, Port Of Seattle, Sea-Tac AirportFolderNoise Remedy Update
  • 1983-04-28

    Sea-Tac Threat News: Noise Is an Issue Whose Time Has Come

    This April 1983 newsletter from the SeaTac Threat community group outlines residents' opposition to airport noise and related Port of Seattle (POS) policies. It covers meetings where members agreed to resist relaxed density guidelines near North SeaTac Park, push for community-appointed representatives on the Policy Advisory Committee, and make noise a key issue in upcoming municipal, county, and state elections. The newsletter also announces a series of public meetings where the POS will present its Noise Remedy Study Plan, urging residents to attend and participate.
    TagsCASE, Noise, Policy Advisory Committee, Port Of Seattle, Sea-Tac Communities PlanFolderNewsletters
  • 1983-02-04

    Airport Noise Remedy Update Work Program: Phase and Task Descriptions

    This 1983 work program outlines a study to evaluate and update Sea-Tac International Airport's aircraft noise remedy program, originally established in the 1970 Sea-Tac/Communities Plan. The study, conducted by the Port of Seattle alongside Peat Marwick Mitchell & Co. and McClure Research Company, addresses updated noise projections, progress on existing remedies, and current financial conditions. Key tasks include study design, federal funding coordination, and a Community Involvement Program to keep the public informed and engaged in noise abatement planning.
    CategoriesHistory TagsHenry M. Jackson International AIrport, Noise, Noise Mitigation, Noise Remedy Update, Sea-Tac Communities PlanFolderNoise Remedy Update
  • 1983-02-01

    The Sea-Tac Threat News: February 1983

    A February 1983 newsletter from the SeaTac Threat Group details community efforts to fight noise and air pollution from Seattle-Tacoma International Airport, including presentations on noise health impacts and four potential legal remedies such as reverse condemnation and nuisance suits. The group reached a consensus that legal action was the best way to pressure the Port of Seattle (POS) to address the airport's noise pollution, and members were encouraged to attend upcoming meetings with attorney Mary Ruth Mann to discuss terms and fees. The newsletter also highlights concerns about FAA safety density guidelines being overturned and urges residents with political influence to take action.
    TagsCASE, FAA Density Guidelines, Noise, Port Of Seattle, Sea-Tac AirportFolderNewsletters
  • Student Scores Rise After Nearby Subway Is Quieted

    By Ari L. Goldman April 26, 1982 Fifteen times during each school day, an IRT subway train would rumble and screech past Public School 98, near the northern tip of Manhattan. In classrooms facing the elevated tracks, all work would stop until the train barreled by. After years of complaints about the disruption, the Transit Authority
    CategoriesFrom The Web, History TagsArline Bronzaft, New York Times, Noise

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[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!

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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