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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.

Category : Key Documents(100)

The (100) files, images and basic information we refer to constantly from the Document Library and Resources pages.

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  • 2025-09-12

    Legal Services Agreement Regarding Issues Regarding Port of Seattle’s Sustainable Airport Master Plan (SAMP)

    ★
    In September 2025, the City of SeaTac, Washington engaged the law firm Leech Tishman Nelson Hardiman to provide legal counsel regarding the Port of Seattle's Sustainable Airport Master Plan (SAMP), specifically in response to an anticipated Federal Aviation Administration (FAA) Finding of No Significant Impact (FONSI) and Record of Decision (ROD). The firm's work includes preparing legal analysis, submitting comments, and filing a Petition for Review in either the Ninth Circuit or D.C. Circuit Court of Appeals challenging the FAA's environmental findings once published in late 2025. The engagement is capped at $300,000 with an initial $10,000 retainer, and billing rates range from $300–$400 per hour for associates to $540 per hour for lead attorney Steven M. Taber.
    CategoriesKey Documents, Litigation TagsAirport Law, SAMP, seatacFolderSeaTac
  • 2025-08-12

    Passenger Growth – Port Of Seattle Commission Regular Meeting P69

    ★
    A Microsoft Teams screen capture from the Port of Seattle Commission Regular Meeting (P69), timestamped 1:09 PM on 8/12/2025, showing a 'Passenger Growth' presentation slide. The slide displays actual passenger totals from 2021–2024 (ranging from 36.2M to 52.6M) alongside a 2025 budget of 53.5M and a 2025 forecast of 53.1M, noting 0.9% forecast growth versus 2024 actual and a -0.7% variance below budget. The speaker identified in the taskbar is Payne, Aubree.
    CategoriesKey Documents, Meetings TagsAirport Committees, Forecast, PAX, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolderSea-Tac Airport
  • 2025-08-12

    Airport Development Fund Balance

    ★
    A Microsoft Teams screen share from the Port of Seattle Commission Regular Meeting (P69) shows a slide titled 'Airport Development Fund Balance,' displaying a bar chart with a beginning balance of $739,774 thousand, an ending balance forecast of $830,000 thousand, and a budget of $829,833 thousand, with a bullet noting the $830M ending balance equals 18 months of O&M in 2025. The presenter identified in the lower caption bar is Payne, Aubree, and the meeting timestamp reads 3:00:05 with a system clock of 1:14 PM on 8/12/2025.
    CategoriesKey Documents TagsAirport Committees, Airport Development Fund, Budget, Port Of Seattle, Port Of Seattle Commission, Sea-Tac AirportFolderStatistics
  • 2025-06-01

    The Gift of Public Funds Bogeyman

    ★
    Noah Purcell (Washington State Solicitor General) and Michelle Saperstein (Assistant Attorney General) argue in the Washington Law Review (Vol. 100, No. 2, 2025) that Washington’s ‘gift of public funds’ doctrine under article VIII, sections 5 and 7 of the Washington Constitution is systematically misunderstood and over-applied by public officials and government lawyers. The article analyzes
    CategoriesKey Documents, News Stories TagsGift of Public Funds, Grants, Noah Purcell, RCW53, Supreme Court Of Washington, Washington Law ReviewFolderArticle 8
  • The SAMP

    ★
    SAMP SEPA i dont get it flyer 1600 30
    The un-Sustainable Master Plan The Sustainable Airport Master Plan (SAMP) is the fourth major expansion of Sea-Tac. It will add as much new flight capacity as adding a new runway–without adding a new runway. That is why the current environmental review says it requires no compensation or mitigation. But the negative impacts to your community
    CategoriesKey Documents
  • 2025-01-01

    Seattle-Tacoma International Airport Sound Insulation Repair and Replacement Pilot Program: Assessment Technical Report

    ★
    Assessment Technical Report for the Seattle-Tacoma International Airport (Sea-Tac Airport) Sound Insulation Repair and Replacement Pilot Program (SIRRPP), prepared by Environmental Science Associates (ESA) for Port of Seattle, January 2025. Covers comprehensive homeowner survey outreach (postcards, survey letters, assessment website, Part 150 Study kickoff meetings), research on building materials expected useful life for sound insulation
    CategoriesKey Documents TagsPart 150, Port Of Seattle, Port Packages, Sea-Tac Airport, SIRRPP, Sound InsulationFolderNoise Mitigation
  • Sustainable Airport Master Plan 2019 Scoping Documents

    ★
    1The same documents can be found here. [get_filebird_folder folder_id=170] 1We often provide replicas of important documents, news stories, etc. We refer to this as ‘belt and suspenders’. Although we always recommend that researchers source from the original sites, computers often fail. It’s good to have backup.
    CategoriesKey Documents TagsEnvironmental Review, SAMP, Scoping documents, Sustainable Airport Master Plan
  • 2024-07-12

    Noise standards: Aircraft type and airworthiness certification (14 CFR Part 36)

    ★
    Title 14 CFR Part 36 sets the federal noise standards that aircraft must meet to receive type and airworthiness certificates from the FAA. It covers a wide range of aircraft, including large commercial jet airplanes, propeller-driven small and commuter planes, helicopters, and tiltrotors, establishing specific noise measurement, evaluation, and limit requirements for each category. These rules are relevant to airports like Sea-Tac because they define the baseline noise performance standards that aircraft operating in the area must satisfy.
    CategoriesKey Documents, Legislation TagsCFR, FAA, Regulations, Title 14FolderUSC & CFR
  • 2024-05-16

    FAA Reauthorization Act of 2024

    ★
    The FAA Reauthorization Act of 2024 (Public Law 118-63) is a comprehensive federal law signed on May 16, 2024, that reauthorizes and updates the Federal Aviation Administration and civil aviation programs across the United States. The Act covers a wide range of topics including aviation safety improvements, aerospace workforce development, cybersecurity, and organizational reforms within the FAA. While the law addresses airport planning and noise compatibility programs, it does not focus specifically on noise policy at individual airports such as Sea-Tac.
    CategoriesKey Documents, Legislation TagsFAA ReauthorizationFolderFAA
  • 2024-01-01

    Flight Corridor Safety Program 2024 – Category III Selection Summary

    ★
    Selection summary for the Flight Corridor Safety Program at Seattle-Tacoma International Airport, evaluating four firms (AECOM, HNTB, Jacobs Engineering, RS&H) for a $2M contract to manage obstructions consisting of trees and vegetation around the airport. HNTB was awarded the contract after receiving outstanding ratings across all criteria.
    CategoriesKey Documents TagsAirport Expansion, Aviation Committees, Port Of SeattleFolderFlight Corridor Safety Program

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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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