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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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  • 2025-10-28

    Port Of Seattle Commission Meeting, October 28, 2025

    The Port of Seattle held a Regular Commission Meeting on October 28, 2025, covering routine business such as approval of meeting minutes, claims totaling over $156 million, and several construction and lease authorizations related to Seattle-Tacoma International Airport facilities. Agenda items included contracts for snow storage expansion, a building renovation at Sea-Tac, and a cruise terminal lease agreement. The commission also considered a resolution reaffirming the Port's Welcoming Port Policy in support of immigrants, refugees, and international visitors.
    CategoriesMeetings TagsAirport Committees, Airport Development Fund, Airport Expansion, Fred Felleman, Hamdi Mohamed, Port Of Seattle, Port Of Seattle Commission, SAMP, Sea-Tac Airport, Stephen Metruck, Tax LevyFolder2025
  • Sea Tac Airport Construction 10212025 1 122625
    2025-10-22

    Sea-Tac Airport moves closer to a new terminal

    By Lauren Rosenblatt Seattle Times business reporter Seattle-Tacoma International Airport is one step closer to opening a new terminal, part of the airport’s master plan to accommodate millions of passengers moving through the crowded airfield. The Federal Aviation Administration last month approved 31 projects at Sea-Tac to help the airport keep up with an expected
    CategoriesFrom The Web TagsSAMP, Sea-Tac Airport
  • 2025-10-15

    Sea-Tac Airport Part 150 Full NEM Virtual Workshop Recording

    JENNY THACKER (PRR, Virtual Meeting Facilitator): All right, welcome everybody to the Part 150 study for Seattle Tacoma International Airport virtual public workshop. I’m Jenny Thacker from PRR and I’ll be your virtual meeting facilitator this evening. All participants are automatically muted upon arrival and will remain muted through the entire meeting and those who
    CategoriesMeetings TagsESA, FAA, Part 150, Sea-Tac Airport
  • 2025-10-14

    Aviation Division 2026 proposed operating & capital budgets

    The Port of Seattle held a Special Commission Study Session on October 14, 2025, focused on the Seattle-Tacoma International Airport (SEA) Aviation Division's proposed operating and capital budgets for 2026. The meeting, open to the public at Port of Seattle Headquarters and available remotely, was attended by five commissioners and ran from 9:00 to 10:15 a.m. The session provided an overview of planned financial and infrastructure investments for the aviation division in the coming year.
    TagsBudget, Port Of Seattle, Port Of Seattle Commission, Presentation, Sea-Tac AirportFolder2025
  • 2025-10-14

    Port Of Seattle regular commission meeting agenda, October 14, 2025

    This document is the agenda for the Port of Seattle Regular Commission Meeting held on October 14, 2025, covering routine administrative and business items such as lease agreements, labor contracts, and environmental remediation funding. It does not contain specific Sea-Tac Airport noise policy content, though it includes an item authorizing a ten-year cargo building lease with Amazon.com Services at Seattle-Tacoma International Airport. The meeting was held both in person at Port headquarters and virtually via Microsoft Teams.
    TagsAmazon, Fred Felleman, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolder2025
  • 2025-10-14

    Sustainable Airport Master Plan Near-Term Projects Update

    Port of Seattle presentation updating on the FAA’s completion of NEPA Environmental Assessment for 31 proposed SAMP projects, finding no significant environmental impact. Covers regional growth driving air travel demand, project details, and next steps including Port-led environmental review and public engagement.
    TagsFAA, NEPA, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderSAMP
  • 2025-10-14

    Sea-Tac 2026 Budget CPE Comparison Across Large-Hub Airports

    Slide 54 (page 56 of 95) from a Seattle-Tacoma International Airport (SEA) presentation compares 2026 forecast Cost per Enplanement (CPE) across five large-hub airports: DEN ($17.05), LAX ($37.60), ORD ($29.08), SEA ($21.10), and SFO ($29.03). Sources are cited as 2026 Budget documents or Preliminary Official Statements on bond issuance.
    TagsAirline Industry, Budget, Forecast, Sea-Tac AirportFolderStatistics
  • Sea-Tac Airport Budget Summary and Key Indicators, 2023–2026

    A financial summary slide presenting Seattle-Tacoma International Airport's budget data from 2023 actuals through the 2026 proposed budget, showing operating revenues projected to reach $982,884 thousand and capital expenditures of $835,887 thousand in 2026. Key indicators include Cost Per Enplanement (CPE) rising to $21.10, enplaned passengers of 27,031 thousand, and a 16.5% increase in capital expenditures from the 2025 approved budget.
    TagsBudget, Port Of Seattle, Sea-Tac AirportFolderFinance
  • 2025-10-13

    Port Commission briefing SAMP: SEPA Includes Additional Analyses

    A presentation slide titled 'SEPA Includes Additional Analyses' lists environmental review topics covered under the State Environmental Policy Act (SEPA), including Earth, Air, Water, Plants and Animals, Energy and Natural Resources, Environmental Health, Land and Shoreline Use, Transportation, Public Services and Utilities, Climate, Environmental Justice, and Cumulative Impacts. A footnote notes that Climate, Environmental Justice, and Cumulative Impacts were removed from the NEPA Final EA, highlighting differences between state and federal environmental review processes relevant to Sea-Tac Airport proceedings.
    TagsEnvironmental Review, Port Of Seattle Commission, SAMP, Sea-Tac Airport, SEPAFolderCommission
  • 2025-10-10

    FAA Grant Compliance Review: Seattle-Tacoma International Airport Report

    The FAA conducted a compliance review of Seattle-Tacoma International Airport (SEA), managed by the Port of Seattle, to assess whether airport revenues were being used in accordance with federal law and FAA policies. The review found several violations, including the use of airport funds for familiarization tours promoting tourism and existing airline routes, which are prohibited forms of general economic development. The FAA ordered reimbursement of over $354,000 in improper marketing expenses and required the Port to immediately stop using airport revenue for non-compliant marketing activities.
    TagsAirport Improvement Program, Audit, FAA, Port Of Seattle, Sea-Tac AirportFolderFAA

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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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