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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.

TagPuget Sound Regional Council(191)

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  • 1998-06-11

    Documents catalogued as received in 1990

    This is a library catalog sheet listing documents received in 1990 related to regional planning and community concerns in the Seattle-Tacoma area. It includes two versions of the 'Vision 2020' environmental impact statement published by the Puget Sound Regional Council (PSRC), as well as a community document titled 'The Injustice of It All' authored by a group called Enraged Housewives. The catalog was originally created in June 1998 and last revised in August 2002.
    TagsEIS, Environmental Impact Statement, History, PSRC, Puget Sound Regional Council, RCAAFolderRCAA
  • 1998-06-11

    Documents catalogued as received in 1992

    This catalog lists documents received in 1992 related to aviation planning and noise policy in the Puget Sound region, with a focus on Sea-Tac International Airport (STIA). It includes environmental impact statements, noise exposure maps, community association comments, budget documents, and FAA regulatory guides, many connected to the 'Flight Plan Project' — a regional air transportation study. Several items were donated by attorney J. Richard Aramburu and other community stakeholders involved in airport noise and development issues.
    TagsEnvironmental Impact Statement, Flight Plan Project, Port Of Seattle, Puget Sound Regional Council, RCAA, Sea-Tac AirportFolderRCAA
  • 1997-07-01

    PSRC Property Acquisition Financial Feasibility Study

    A study commissioned by the Puget Sound Regional Council to assess the financial feasibility of establishing a funding mechanism for acquiring and redeveloping properties adversely impacted by regionally significant essential public facilities. The study examines case study areas near the Auburn Rail Yard, Sea-Tac International Airport, and the proposed Everett 112th Street SE HOV Lanes
    TagsLand Use, Noise Mitigation, property, PSRC, Puget Sound Regional Council, Sea-Tac AirportFolderStudiesStudy TopicsProperty
  • 1997-07-01

    Property Acquisition Financial Feasibility Study

    This 1997 Puget Sound Regional Council study examines the financial feasibility of acquiring and redeveloping properties negatively affected by major regional transportation facilities, including Sea-Tac International Airport, the Auburn Rail Yard, and a proposed Everett HOV facility. It evaluates potential funding mechanisms—such as a state-financed revolving fund or public/private partnerships—to convert noise-impacted land within the 65–75 DNL noise contours to compatible non-residential uses. The study covers roughly 100 acres across three case-study areas and was initiated under Regional Council Resolution A-96-02 adopted in July 1996.
    TagsNoise Mitigation, property, PSRC, Puget Sound Regional Council, Sea-Tac AirportFolderStudies
  • 1997-05-28

    EXH AR041132: Port Of Seattle Commission Resolution No. 3245 — Reaffirming Master Plan Update and Authorizing Third Runway Construction at STIA

    Port Of Seattle Commission Resolution No. 3245 reaffirms adoption of the Airport Master Plan Update for Seattle-Tacoma International Airport (STIA), authorizes construction of a new dependent air carrier runway (third runway) located 2500 feet west of existing runway 16L/34R, expansion of the existing parking garage, and a new north employee parking lot. References PSRC Resolution
    TagsACC, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle Commission, Puget Sound Regional Council, Sea-Tac Airport Master Plan, Third RunwayFolderBox 17
  • 1996-07-11

    EXH AR037736: Puget Sound Regional Council Resolution A-96-02 Amending the 1995 Metropolitan Transportation Plan for Long-Term Commercial Air Transportation Capacity

    Resolution A-96-02 adopted by the Puget Sound Regional Council (PSRC) General Assembly on July 11, 1996, amending the 1995 Metropolitan Transportation Plan (MTP) and Regional Transportation Plan (RTP) to include plans for a third runway at Seattle-Tacoma International Airport with additional noise reduction measures. References Resolution A-93-03, Expert Arbitration Panel on Demand/System Management and Noise,
    TagsACC, Environmental Impact Statement, Pollution Control Hearings Board, PSRC, Puget Sound Regional Council, Sea-Tac Airport, Third RunwayFolderBox 15
  • 1996-07-11

    Puget Sound Regional Council General Assembly Meeting Agenda, July 11, 1996

    The Puget Sound Regional Council held a General Assembly Meeting on July 11, 1996, at the Seattle Center Flag Pavilion to consider a key policy action: an amendment to the Metropolitan Transportation Plan (MTP) that would include plans for Sea-Tac Airport expansion along with additional noise reduction measures. The meeting included a public comment period from 2:00–3:30 p.m., allowing community members up to three minutes each to speak, followed by assembly deliberations and a vote on the proposed amendment. This document reflects a formal regional planning effort to balance airport growth with mitigation of noise impacts on surrounding communities.
    TagsAirport Expansion, Metroplitan Transportation Plan, PSRC, Puget Sound Regional Council, Sea-Tac AirportFolder07-Executive Board-General Assembly-Amendment MTP
  • Gaagenda19960711 pdf
    1996-07-11

    Puget Sound Regional Council General Assembly Meeting Agenda, July 11, 1996

    Agenda for the Puget Sound Regional Council (PSRC) General Assembly Meeting held Thursday, July 11, 1996, 2:00–5:00 PM at the Seattle Center Flag Pavilion, Seattle, WA. Presided over by Executive Doug Sutherland. Key action item: Amendment to Metropolitan Transportation Plan (MTP) to include plans for Sea-Tac Airport expansion with additional noise reduction measures. Includes public
    TagsAirport Expansion, Metroplitan Transportation Plan, PSRC, Puget Sound Regional Council, Sea-Tac AirportFolder07-Executive Board-General Assembly-Amendment MTP
  • 1996-07-11

    1996 Amendment to the Metropolitan Transportation Plan for the Central Puget Sound Region

    In July 1996, the Puget Sound Regional Council General Assembly adopted an amendment to the 1995 Metropolitan Transportation Plan for the Central Puget Sound Region, with updates taking effect August 2, 1996. The amendment includes key changes related to aviation, notably the addition of a new Appendix G outlining air transportation noise reduction measures and the steps for implementing and monitoring them. These changes, which required a formal Port of Seattle resolution to activate, were set to be fully incorporated into the updated Metropolitan Transportation Plan in 1998.
    TagsMetroplitan Transportation Plan, PSRC, Puget Sound Regional CouncilFolder07-Executive Board-General Assembly-Amendment MTP
  • 1996-07-11

    PSRC Resolution A-96-02: amending the 1995 MTP and related planning documents to provide for the long-term commercial air transportation capacity needs of the Central Puget Sound Region

    In July 1996, the Puget Sound Regional Council adopted Resolution A-96-02, amending the region's Metropolitan Transportation Plan to include plans for a third runway at Seattle-Tacoma International Airport, paired with additional noise reduction measures. The decision followed years of study, including an Expert Panel finding that neither demand management strategies nor high-speed rail could eliminate the need for expanded capacity. Final approval of the runway remained contingent on environmental review by the Port of Seattle, Federal Aviation Administration permitting, and completion of required noise mitigation steps.
    CategoriesHistory TagsExpert Arbitration Panel, PSRC, Puget Sound Regional Council, Sea-Tac Airport, Third RunwayFolderPuget Sound Regional Council

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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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