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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.

TagSustainable Airport Master Plan(237)

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  • 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
  • 2018-05-01

    Sustainable airport master plan executive summary

    ★
    Executive summary of the Sustainable Airport Master Plan for Seattle-Tacoma International Airport prepared by Leigh Fisher and associates for the Port of Seattle. The document outlines forecasts, requirements, and alternatives for airport development.
    CategoriesKey Documents TagsLeigh-Fisher, SAMP, Sustainable Airport Master PlanFolderUpdates
  • 2014-06-15

    Airport Key Map: Sea-Tac Airport Property Zones

    ★ 32
    This Airport Key Map, published by the Port of Seattle on June 15, 2014, provides a general reference overview of property zones surrounding Seattle-Tacoma International Airport. It identifies distinct areas including the Airfield, Terminal, Commercial, South of Airfield, South of 200th, and North of Airfield zones, and distinguishes between Port of Seattle property, lease boundaries, non-Port property, land available for redevelopment, and the proposed SR 509 corridor. The aerial photo, taken in Spring 2012, is intended for general reference only and is not approved for navigation use.
    CategoriesKey Documents TagsMap, Port Of Seattle, property, Runways, SAMP, Sea-Tac Airport, seatac, SR509, Sustainable Airport Master PlanFolderSAMP
  • 2012-09-11

    Port Of Seattle Commission memorandum – Airport Sustainability Master Plan

    ★
    In September 2012, the Port of Seattle Commission considered a $6 million request to create a new Sustainability Master Plan (SMP) for Seattle-Tacoma International Airport, replacing an outdated 15-year-old plan. The update was driven by nearly 50% passenger growth since the last plan, rising capacity pressures on roadways, terminals, and taxiways, and the need to meet FAA requirements for federal grants and environmental permits. The SMP aimed to guide long-term airport development through 2015, balancing future growth with sustainability goals within the airport's existing footprint.
    CategoriesKey Documents TagsElizabeth Leavitt, Port Of Seattle, SAMP, Sustainable Airport Master Plan, Tay YoshitaniFolderMeetings
  • Appendix k children8217s environmental health and safety risks socioeconomics and environmental justice NEPA final ea and SEPA page 124

    Appendix K SEPA Environmental Justice Disparities Map page 124

    Figure 5-1 from a SEPA Environmental Justice Memorandum prepared by Landrum and Brown (document no. 553-2912-002, dated April 2026) maps Washington Department of Health Environmental Health Disparities Index scores across census tracts in the Sea-Tac Airport vicinity, including Seattle, Tukwila, Burien, SeaTac, Renton, Kent, and Des Moines. The map delineates four overlapping study areas—General Study Area, Surface Transportation Study Area, Air Dispersion Study Area, and Noise Study Area (65 dB contour)—over a background showing health disparity rankings ranging from 1–5 (Low) to 10 (High), with most tracts in the project vicinity ranked 9–10.
    TagsEnvironmental Justice, Landrum & Brown, Map, NEPA, SAMP, SEPA, Sustainable Airport Master Plan, Washington State Department Of HealthFolderAppendices
  • Burien airport committee 16 jun 2026 agenda pdf pdf
    2026-06-16

    Joint Burien Airport Committee & Des Moines Airport Advisory Committee Meeting

    1. Call to Order 2. Business Agenda Sustainable Airport Master Plan (SAMP) Study Session Materials 3. Next Meeting Date The next regular meeting of the Burien Airport Committee will be July 21, 2026, at 6 p.m. 4. Adjournment Document Link
    CategoriesEvents TagsBurien Airport Committee, committee meeting, Des Moines, SAMP, Sustainable Airport Master Plan
  • 2026-06-16

    Joint Burien Airport Committee & Des Moines Airport Advisory Committee Meeting Agenda

    The Joint Burien Airport Committee and Des Moines Airport Advisory Committee held a meeting on June 16, 2026, with the primary agenda item being a study session on the Sustainable Airport Master Plan (SAMP), which relates to long-term planning for Seattle-Tacoma International Airport. The meeting was open to the public both in person at Burien City Hall and virtually via Zoom. The next scheduled meeting of the Burien Airport Committee was set for July 21, 2026.
    TagsBurien Airport Committee, committee meeting, Des Moines, SAMP, Sustainable Airport Master PlanFolderBurien
  • Appendix k socioeconomics environmental justice and children8217s health page 5

    Appendix k socioeconomics environmental justice and children8217s health page 5

    This map, from the Seattle-Tacoma International Airport Sustainable Airport Master Plan (SAMP) Environmental Review, shows census block group data on the percentage of population under age 18 within the General Study Area (GSA) surrounding Sea-Tac Airport. Shading indicates four tiers of child population density (under 10% through 30.1–40%), with the dashed blue line marking the study area boundary around the airport's runways and terminal facilities.
    TagsSAMP, SEPA, Sustainable Airport Master PlanFolderAppendices
  • Https3a2f2fcloudfront us east 1.images.arcpublishing.com2fcmg2fohqcp4oj55fw3i5b3ejfg2lfx4
    2026-06-08

    KIRO7: Public weighs in on Port of Seattle Sustainable Airport Master Plan

    It’s no secret that the Puget Sound region is growing. To keep up with the increasing demands, The Port of Seattle created the Sustainable Airport Master Plan, a blueprint for Seattle-Tacoma International Airport to address the increasing volume of passengers and cargo. The public can now comment on the draft environmental impact statement, available here.
    CategoriesFrom The Web, News Stories TagsCity of Burien, community engagement, Des Moines, Environmental Impact Statement, KIRO7, Noise, Sustainable Airport Master Plan
  • June 08 2026 joint des moines and burien airport committee meeting agenda pdf
    2026-06-08

    Joint Des Moines and Burien Airport Committee Meeting June 8, 2026

    Joint meeting with Burien Airport Committee: Sustainable Airport Master Plan (SAMP) Study Session
    CategoriesEvents TagsBurien Airport Committee, Des Moines Aviation Advisory Committee, SAMP, Sustainable Airport Master Plan

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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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