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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.

TagNoise(177)

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  • 87acd091 6eb2 4ce7 8e41 be615746133b thesoundinsoundtransit 1.1.1
    2026-06-12

    Bellevue residents say new cross-lake rail line violates noise limits

    By Chris Daniels,KOMO News Senior Reporter BELLEVUE, Wash. — A group of Bellevue homeowners says Sound Transit’s new 2 Line trains crossing Lake Washington are keeping residents awake at night and may be violating local noise ordinances. Residents in Bellevue’s Enatai neighborhood say a loud, low-frequency rumble generated by trains crossing the East Channel Bridge
    CategoriesFrom The Web, News Stories TagsKOMO, Noise
  • Https3a2f2fcloudfront us east 1.images.arcpublishing.com2fcmg2fohqcp4oj55fw3i5b3ejfg2lfx4
    2026-06-08

    KIRO7: Public weighs in on Port of Seattle Sustainable Airport Master Plan

    It’s no secret that the Puget Sound region is growing. To keep up with the increasing demands, The Port of Seattle created the Sustainable Airport Master Plan, a blueprint for Seattle-Tacoma International Airport to address the increasing volume of passengers and cargo. The public can now comment on the draft environmental impact statement, available here.
    CategoriesFrom The Web, News Stories TagsCity of Burien, community engagement, Des Moines, Environmental Impact Statement, KIRO7, Noise, Sustainable Airport Master Plan
  • SAMP public comment flyer SEPA 2026
    2026-05-22

    SAMP: the unsustainable airport master plan – 2026 pre-open house hero

    Advocacy flyer opposing the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), characterizing it as the 'UnSustainable Airport Master Plan' and warning of one-third more flights, noise, and pollution with no mitigation or compensation. Public comment is noted as beginning May 22, 2026, with resources listed at stni.info/samp/ and sea-tacnoise.info.
    Tagscommunity engagement, Environmental Impact Statement, Noise, SAMP, Sea-Tac Airport
  • SAMP public comment flyer SEPA 2026 square
    2026-05-22

    SAMP – the unsustainable airport master plan

    Advocacy flyer from Sea-Tac Noise.Info opposing the Seattle-Tacoma International Airport Sustainable Airport Master Plan (SAMP), characterizing it as the 'UnSustainable Airport Master Plan' and warning of one-third more flights, noise, and pollution with no mitigation or compensation. The flyer directs the public to subscribe at stni.info/samp/ and notes that public comment opens May 22, 2026.
    Tagscommunity engagement, Environmental Impact Statement, Noise, Port Of Seattle, SAMP
  • 634447191 26140442278976531 5191433782839792025 n
    2026-05-08

    It all adds up SEA change – deploying underwater tech to study how noise affects marine life

    A Port of Seattle promotional image featuring a dolphin or orca dorsal fin breaking the surface of calm water, with mountains visible in the background. The image promotes the Port's deployment of underwater technology to study how noise affects marine life, under their 'It All Adds Up Sea Change' environmental initiative.
    TagsEnvironment, Marine, Noise, Port Of Seattle
  • Noisequest 2color edited
    2026-04-28

    Noisequest logo

    Logo for NOISE (Neighbors Opposed to Irritating and Stressful Environments), a community advocacy organization concerned with airport noise. The logo features bold blue block letters spelling 'NOISE' with a stylized blue commercial airplane graphic integrated into the design.
    TagsAcademic Journals, Noise, University Of Washington
  • 2026-01-06

    Airport noise mitigation program implementation guidelines

    This document outlines how airport noise impact programs can be approved and funded under the Airport Improvement Program (AIP). Once a detailed study confirms substantial community noise impact and a reasonable solution is proposed, costs become eligible for approval. Specific guidelines must then be developed covering property acquisition or sound insulation options, including owner agreements, appraisals, market exposure, noise insulation standards, and relocation proposals.
    TagsAIP, Airport Improvement Program, Avigation Easement, FAA, Noise
  • 2026-01-06

    Summary — areas of agreement — Workshop #1 — Silence is golden

    This document summarizes the areas of agreement reached at Workshop #1, titled 'Silence is Golden,' focusing on Sea-Tac Airport improvements and compatible land use in high-impact noise zones. Participants agreed that the airport is important to the community but has lost its former welcoming atmosphere, and suggested improvements such as lounge seating, art displays, and better amenities. The group also reached consensus that noise-sensitive uses like residences, schools, and hospitals should be prohibited in heavily affected areas, while open space, light industry, and recreational uses were seen as appropriate alternatives.
    TagsAirport, Airport Committees, Noise, Sea-Tac Airport
  • 2026-01-06

    Interim answers to November 9, 1983 letter regarding airport noise remedy program

    This letter from Edward G. Tatum, Manager of the FAA Airports Division, provides interim answers to the Port of Seattle's questions about federal funding and guidelines for airport noise remedy programs near Sea-Tac Airport. It outlines key details such as 80% federal cost coverage under the Airport Safety and Noise Abatement Act, eligibility criteria for sound insulation and property purchase assistance programs, and interior sound level standards based on EPA recommendations. The letter acknowledges that the FAA and Port of Seattle are breaking new ground together in developing policies that could serve as a nationwide model for noise abatement programs.
    TagsAirport Improvement Program, FAA, Noise, Noise Mitigation, Port Of Seattle
  • Handwritten Notes – School District Responsibilities and Community Concerns

    Handwritten notes discussing who will accept responsibility in various organizations (POS, King Co., FHP), questions about community plans, and concerns about aircraft noise impact on schools. Includes references to Boulevard Elementary School in Seattle and Denis High School with costs noted.
    TagsAircraft Maintenance, Noise

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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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