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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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  • 2018-05-15

    Burien Airport Committee (BAC) agenda, May 15, 2018

    The Burien Airport Committee (BAC) met on May 15, 2018 to discuss air quality, FAA updates, and strategies for addressing Seattle-Tacoma International Airport's impact on the Burien community. Key priorities included updating noise contour maps, gathering environmental justice data, reviewing air pollution studies, and identifying economic benefits for Burien from its proximity to the airport. The committee also reviewed draft minutes from its April 17, 2018 meeting, where members were assigned tasks such as drafting a resolution on airport noise and emission concerns.
    TagsBAC, Burien Airport Committee, FAA, Port Of Seattle, StARTFolderBurien Airport Committee
  • 2018-05-15

    Air quality initiatives at Sea-Tac Airport

    This 2018 presentation by Port of Seattle Senior Manager Leslie Stanton outlines air quality initiatives at Sea-Tac Airport, covering the types and sources of air pollution including greenhouse gases and regulated pollutants such as NOx, SOx, and particulate matter. It highlights efforts to reduce emissions through clean vehicle programs, including Sea-Tac's distinction as the first US airport to require green taxis and green TNCs, conversion of CNG buses to electric, and expanded EV charging infrastructure. The presentation also addresses passenger ground transportation planning aimed at improving public transit access and reducing the airport's overall environmental footprint.
    TagsGreenhouse gases, Port Of Seattle, Sea-Tac AirportFolderSP #2
  • 2018-05-08

    Airport Financial Forecast & SAMP Impacts: Commission Briefing

    A May 2018 Port of Seattle Commission briefing assessed the financial impact of the Sustainable Airport Master Plan (SAMP) on Sea-Tac Airport, finding that adding SAMP projects could push airline cost-per-enplaned-passenger (CPE) to an infeasible $36 by 2027. To keep costs within an acceptable range of $25–$30, the Port identified the need to increase non-aeronautical revenues, control operating and maintenance expenses, and reduce projected capital spending. The briefing concluded that SAMP is financially achievable, but only with vigilant cost management.
    TagsPort Of Seattle, Port Of Seattle Commission, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderSAMP
  • 2018-05-07

    SAMP Near Term Projects Capital Cost Summary by Group and Project (2017–2027)

    This document outlines the Seattle-Tacoma International Airport Master Plan (SAMP) near-term capital improvement projects spanning 2017 through 2027, totaling approximately $4.47 billion in planned investments. Major project groups include a new North Terminal complex, landside busway improvements, airfield upgrades, and temporary gate expansions, with peak spending projected around 2024–2026. The plan reflects Sea-Tac's long-range strategy to expand capacity, modernize infrastructure, and accommodate growing passenger and cargo demand.
    Tagscapital improvements, North Terminal, Port Of Seattle, SAMP, Sea-Tac AirportFolderUpdates
  • 2018-05-04

    Sustainable Airport Master Plan (SAMP) Update: International Boulevard Business Operators & Transportation Review Committee Briefing

    The Port of Seattle presented a Sustainable Airport Master Plan (SAMP) Update to the International Boulevard Business Operators and Transportation Review Committee on May 4, 2018, outlining the airport's long-term vision and near-term projects. The update covered planning progress, including completed steps such as FAA-approved market demand analysis and two rounds of public open houses, with a third open house planned for May 30. Three conceptual alternatives for a second terminal and roadway configuration were introduced, all requiring further study to assess feasibility, cost, and operational efficiency.
    Tagscommunity engagement, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderUpdates
  • 2018-05-01

    Technical Memorandum No. 7: Facilities Implementation and Financial Feasibility — Seattle-Tacoma International Airport

    This May 2018 technical memorandum, prepared by Leigh Fisher for the Port of Seattle, outlines near-term capital projects and long-term facility improvements planned for Seattle-Tacoma International Airport as part of the Sustainable Airport Master Plan. It evaluates the financial and operational feasibility of major airside, terminal, cargo, and landside projects, and recommends key actions for implementation following completion of the planning process. Note that this document focuses on facilities and financial planning rather than noise policy specifically.
    TagsLeigh-Fisher, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderSAMP
  • 2018-05-01

    Technical Memorandum No. 7: Facilities Implementation and Financial Feasibility — Seattle-Tacoma International Airport

    This 2018 technical memorandum, prepared by Leigh Fisher for the Port of Seattle, outlines near-term construction projects, financial feasibility, and long-term vision for Seattle-Tacoma International Airport as part of its Sustainable Airport Master Plan. It covers major airside, terminal, cargo, and landside projects, along with an assessment of airfield operational feasibility and recommended actions following the plan's completion. While focused primarily on facilities and finance, the document provides context for infrastructure decisions that may affect airport operations and surrounding communities.
    TagsCargo, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master PlanFolderTechnical Memos
  • 2018-05-01

    Maritime 2018 federal legislative agenda

    This document outlines the Port of Seattle's 2018 Federal Maritime Legislative Agenda, detailing priority issues such as Harbor Maintenance Tax reform, fishing fleet modernization, Seattle Harbor deepening, and Terminal 5 upgrades. It also addresses immigration policies, Puget Sound restoration, and trade priorities. Note that this document focuses exclusively on maritime and cargo port operations and does not contain information related to Sea-Tac Airport noise policy.
    Tagslegislative priorities, Maritime, Port Of Seattle, Puget Sound, Washington PortsFolderMeetings
  • 2018-05-01

    Technical Memorandum No. 9: Sustainability Planning and Management Strategy — Seattle-Tacoma International Airport

    This 2018 technical memorandum outlines a Sustainability Planning and Management Strategy for Seattle-Tacoma International Airport, developed by Leigh Fisher and Synergy Consultants for the Port of Seattle. It establishes sustainability goals, objectives, and metrics across financial, environmental, and social focus areas, drawing on FAA guidance and Port of Seattle commitments. The document also addresses climate change risks to airport facilities and provides a framework for integrating sustainability into near-term airport development decisions.
    TagsFAA, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master PlanFolderTechnical Memos
  • 2018-05-01

    Technical Memorandum No. 8: Environmental Overview, Seattle-Tacoma International Airport

    This 2018 technical memorandum prepared by Leigh Fisher for the Port of Seattle provides an environmental overview of Seattle-Tacoma International Airport as part of its Sustainable Airport Master Plan. It examines existing environmental conditions across topics such as air quality, noise, water resources, biological resources, and hazardous materials, then assesses how the airport's near-term construction and improvement projects could affect those resources. The document is intended to guide planners in understanding potential environmental impacts — including noise and compatible land use — before major airport development decisions are finalized.
    TagsEnvironmental Impact Statement, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master PlanFolderTechnical Memos

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Upcoming Events

  • Port of Seattle Regular Commission Meeting September 22, 2026
    Add to CalendarMTuesday Sep 22: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 09 22 rm packet pdf

    Order of Business 10:30 a.m. 1. Call to Order 2. Executive Session – if necessary, pursuant to RCW 42.30.110 (executive sessions are not open to the public) 12:00 p.m. – Public Session Reconvene or Call to Order and Pledge of Allegiance 3. Approval of the Agenda 4. Special Orders of the Day 4a. Presentation of

    [...]
  • Highline Forum Agenda – September 23, 2026
    Add to CalendarMWednesday Sep 23, 2:30pm - 4:30pm
    City of Des Moines, Police Services Building,
    Highline forum agenda final 23sept2026 pdf

    Highline Forum Agenda Theme: Part 150 Update and PortJobs Overview 2:30pm – Convene Meeting/Introductions Port Co-Chair, Commissioner Mohamed 2:35pm – Public Comments Audience The meeting will be held in person and virtually. Those wishing to provide public comment may: 1) Deliver public comment via email; 2) Deliver public comment via Microsoft Teams; or 3) Deliver

    [...]

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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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