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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(551)

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  • Trc mtg6 part150 060826 final pdf
    2026-06-08

    Part 150 Study Technical Review Committee Meeting #6

    Presentation slides for the sixth meeting of the Part 150 Study Technical Review Committee (TRC) for Seattle-Tacoma International Airport, held June 8, 2026. The meeting covered potential Noise Compatibility Program (NCP) measures including noise abatement, land use, and program management. The agenda also included a review of the previous meeting summary, project schedule, and future
    TagsLand Use, Part 150, Port Of Seattle, Sea-Tac Airport
  • 2026-05-26

    Sustainable airport master plan near-term projects state environmental policy act draft environmental impact statement and next steps

    Presentation about the Port of Seattle’s Sustainable Airport Master Plan Near-Term Projects, covering the completed NEPA process and the required SEPA Draft Environmental Impact Statement. The document outlines various airport infrastructure projects including runway improvements, terminal facilities, maintenance facilities, and cargo operations planned for Sea-Tac Airport.
    TagsEnvironmental Impact Statement, Highline Forum, Port Of Seattle, SAMP, SAMP Draft SEPA EIS, Sea-Tac Airport, SEPA
  • Highline forum SAMP ntp draft SEPA EIS and next steps pdf
    2026-05-26

    Sustainable airport master plan near-term projects state environmental policy act draft environmental impact statement and next steps

    Presentation about the Port of Seattle’s Sustainable Airport Master Plan Near-Term Projects, covering the completed NEPA process and the required SEPA Draft Environmental Impact Statement. The document outlines various airport infrastructure projects including runway improvements, terminal facilities, maintenance facilities, and cargo operations planned for Sea-Tac Airport.
    TagsEnvironmental Impact Statement, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA
  • 2026-05-26

    Port Of Seattle regular commission meeting agenda, May 26, 2026

    This document is the agenda for the Port of Seattle Regular Commission Meeting held on May 26, 2026, covering routine administrative and business items such as approval of meeting minutes, claims, and several construction and technology contracts. Key action items include authorizations related to the S Concourse Evolution project at Seattle-Tacoma International Airport, a shore power project at Pier 66, and an emergency power scope of work for the Main Terminal Improvement Program. The agenda does not contain any items specifically addressing airport noise policy.
    TagsPort Of Seattle, Port Of Seattle Commission, pos_rm_2026_04_28, Sea-Tac Airport, Stephen Metruck
  • 2026 05 26 rm packet pdf
    2026-05-26

    Port Of Seattle regular commission meeting agenda, May 26, 2026

    Agenda for the Port of Seattle Regular Commission Meeting held May 26, 2026, conducted both virtually via MS Teams and in person at Seattle-Tacoma International Airport. The agenda includes consent items covering meeting minutes approval, claims and obligations, Cisco software licensing, and S Concourse Evolution program authorization. New business items address amendments to a Norwegian
    TagsPort Of Seattle, Port Of Seattle Commission, pos_rm_2026_04_28, Sea-Tac Airport, Stephen Metruck
  • Pxl may 25, 2026 183756331

    TRACON S46

    A secured facility entrance with chain-link fencing topped with razor wire, yellow vehicle barriers, and a 'Notice of Inspection' sign visible on the right fence post. The main building in the background has a multi-story institutional design consistent with a jail, prison, or detention center, surrounded by trees in a Pacific Northwest setting.
    TagsATC, Sea-Tac Airport, TRACON
  • 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 1
    2026-05-22

    SAMP – the unsustainable airport master plan

    A advocacy flyer from Sea-Tac Noise.Info (stni.info/samp/) opposing the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), characterizing it as the 'UnSustainable Airport Master Plan.' The flyer warns of one-third more flights, noise, and pollution with no mitigation or compensation, and announces a public comment period opening May 22, 2026.
    Tagscommunity engagement, SAMP, Sea-Tac Airport, SeaTacNoise.Info, Sustainable Airport Master Plan
  • SAMP FONSI ROD Finding of no significant impact record of decision for the sustainable airport master plan near term projects at the seattle tacoma international airport page 1

    Finding of no significant impactrecord of decision for the sustainable airport master plan near term projects at the seattle tacoma international airport page 1

    Cover page of a U.S. Department of Transportation Federal Aviation Administration Northwest Mountain Region document titled 'Finding of No Significant Impact/Record of Decision' for the Sustainable Airport Master Plan Near-Term Projects at Seattle-Tacoma International Airport, Seattle, Washington. The document bears project number EAXX-021-12-ARP-17297535477 and is dated September 2025.
    TagsFAA, FONSI, NEPA, SAMP, Sea-Tac Airport
  • May 15, 2025 25 7439 amended certified index to the administrative record pdf
    2026-05-15

    AMENDED CERTIFIED INDEX TO THE ADMINISTRATIVE RECORD

    The Federal Aviation Administration filed an amended certified index to the administrative record in two Ninth Circuit cases challenging the FAA's September 24, 2025, Finding of No Significant Impact/Record of Decision for near-term construction projects at Seattle-Tacoma International Airport. The cases were brought by Vashon Island Fair Skies and the City of Burien, among others, who are contesting the agency's environmental review of the airport expansion plans. The full administrative record was made available to petitioners electronically on May 8, 2026.
    TagsFAA, Federal Aviation Administration, NEPA, SAMP, Sea-Tac Airport

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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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