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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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  • 2019-11-27

    Letter from City of Sea-Tac Mayor Erin Sitterley to Mark Barkley Regarding Seattle-Tacoma International Airport Study

    In a November 2019 letter to the Washington State Department of Commerce, SeaTac Mayor Erin Sitterley raised concerns about the management of the state-mandated Seattle-Tacoma International Airport Study, which SeaTac was funding to the tune of $150,000. The city questioned whether the study's consultant, Stantec, had strayed from the original technical scope of work, cited worries about monitoring stations placed outside the defined study area, and expressed doubt that the study could be completed on time and within budget. The letter demanded a full accounting of project expenditures—including consultant travel costs from Dallas—and requested that public input be limited until after a draft report was reviewed by the Technical Advisory Committee.
    CategoriesCorrespondence TagsCity Of SeaTac, Department Of Commerce, Erin Sitterley, Mark Barkley, seatac, StantecFolderCommerce
  • 2019-11-27

    Letter to Washington State Department of Commerce regarding Seattle-Tacoma International Airport Study

    In a November 2019 letter to the Washington State Department of Commerce, SeaTac Mayor Erin Sitterley raised concerns about the management of the Seattle-Tacoma International Airport Study, which SeaTac is funding to the tune of $150,000. The city questioned whether consultant Stantec had strayed from the study's original technical scope, flagged potentially wasteful spending on travel from Dallas, and expressed doubt that the study would be completed on time and thoroughly by the June 2020 deadline. The city demanded a full budget accounting and requested that public input be limited until after a draft report was completed and reviewed by the Technical Advisory Committee.
    TagsCity Of SeaTac, Department Of Commerce, Sea-Tac Airport, Stantec, Technical Advisory CommitteeFolderSP #2
  • A Letter To Gary Idleburg re. Commerce Impact Study Public Meeting

    Mr. Idleburg is a Senior Planner at the Washington Department Of Commerce and is overseeing the Sea-Tac Airport Impact Study. This letter is in reference to the public meeting held 6 November, 2019 at Burien City Hall. Hi Mr. Idleburg, I wanted to add to my somewhat discombobulated public comment last night. Frankly, I was
    CategoriesCorrespondence TagsDepartment Of Commerce, Gary Idleburg, Stantec, Tina Orwall
  • 2018-08-29

    Stantec Department of Commerce Meeting – QSPS

    https://seatacnoise.info/wp-content/uploads/082718-SeaTac-DO_Commerce-Meeting-Dana_Holloway-QSPS-1.mp4 Department of Commerce Stantec meeting with residents and members of Quiet Skies Puget Sound. Sheila Brush, David Clark, Larry Cripe, Rick Johnson, Dana Hollaway, Representative Tina Orwall, Representative Mike Pellicciotti
    CategoriesMeetings TagsCommerce Impacts Study 2018, QSPS, StantecFolderState
  • 2018-03-27

    Engrossed Substitute Senate Bill 6032: Washington State 2018 Supplemental Operating Budget (Chapter 299, Laws of 2018)

    Engrossed Substitute Senate Bill 6032, passed by the Washington State Legislature on March 8, 2018, and signed by Governor Jay Inslee on March 27, 2018, is a supplemental operating budget bill making appropriations and amendments to various state funds for the 2017-2019 fiscal biennium. The bill covers a wide range of general government expenditures, including funding for the House of Representatives, tax structure reform discussions, and rural health care planning. Governor Inslee approved the bill with a partial veto, striking down more than 20 specific sections.
    CategoriesLegislation TagsBudget, Jay Inslee, RCW, Stantec, State of Washington, Washington State LegislatureFolderStantec
  • Sea-Tac Airport Impact Study 2018

    You can find the current draft report here. The Washington State Legislature enacted Engrossed Substitute Senate Bill (ESSB) 6032 during the 2018 regular session. •The Washington State Legislature formally asked Commerce on 3/21/2018 to complete a study that evaluates the current and on-going impacts of the Seattle-Tacoma International Airport. •Commerce must implement provisions of Sections
    CategoriesLegislation TagsCommerce Impacts Study 2018, Department Of Commerce, Gary Idleburg, Stantec
  • 2002-10-22

    EXH AR028011: Embankment Infiltration and Seepage — HartCrowser Presentation

    HartCrowser presentation on embankment infiltration and seepage modeling, covering seepage modeling using HELP (Hydrologic Evaluation of Landfill Performance), precipitation components including runoff, infiltration, and seepage, seepage through embankment flow in drain layer, deep percolation below drain, groundwater flow laterally in subgrade, and deep percolation through underlying till/clay. Includes embankment slope section diagram showing seepage parameters
    TagsACC, Engineering News-Record, Environment, Pollution Control Hearings Board, soil, StantecFolderBox 10

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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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