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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.
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TagInterlocal Agreement(170)

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  • 1997-09-04

    City of SeaTac 1997 Interlocal Agreement ILA with Port Of Seattle

    ★ 32
    The original Interlocal Agreement (ILA) between the Port of Seattle and the City of SeaTac.
    CategoriesKey Documents TagsCalvin Hoggard, City Of SeaTac, Gina Marie Lindsey, ILA, Interlocal AgreementFolderSeaTac
  • 2026-08-30

    First Amendment to the Interlocal Agreement Between the Cities of Burien, Des Moines, Normandy Park and Sea-Tac for Environmental Review of the Sea-Tac Airport Sustainable Airport Master Plan

    This document is a First Amendment to an Interlocal Agreement between the cities of Burien, Des Moines, Normandy Park, and SeaTac for the environmental review of the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), originally dated March 6, 2018. The amendment updates Paragraph 7 to clarify that contract management responsibilities — including consultant oversight, invoice coordination, and meeting arrangements — shall be administered by the City of Des Moines. All other terms of the original agreement remain unchanged, and the amendment was signed by authorized representatives of all four cities in 2020.
    TagsCity of Burien, City Of Des Moines, City of Normandy Park, Interlocal Agreement, SAMPFolderPDR26-042 Burien
  • SAMP review ILA 1st amendment pdf
    2026-08-30

    First Amendment to the Interlocal Agreement Between the Cities of Burien, Des Moines, Normandy Park and Sea-Tac for Environmental Review of the Sea-Tac Airport Sustainable Airport Master Plan

    This document is a First Amendment to an Interlocal Agreement between the cities of Burien, Des Moines, Normandy Park, and SeaTac for the environmental review of the Sea-Tac Airport Sustainable Airport Master Plan (SAMP), originally dated March 6, 2018. The amendment updates Paragraph 7 to clarify that contract management responsibilities — including consultant oversight, invoice coordination, and meeting arrangements — shall be administered by the City of Des Moines. All other terms of the original agreement remain unchanged, and the amendment was signed by authorized representatives of all four cities in 2020.
    TagsCity of Burien, City Of Des Moines, City of Normandy Park, Interlocal Agreement, SAMPFolderPDR26-042 Burien
  • 2026-05-30

    Memorandum of understanding: Aircraft noise mitigation study

    This Memorandum of Understanding establishes a cost-sharing agreement between Prince George's County (Maryland), Fairfax County (Virginia), and the City of Alexandria (Virginia) to jointly hire a contractor to study and propose ways to reduce aircraft noise impacts near Ronald Reagan Washington National Airport. Each of the three parties agrees to contribute up to $83,333 toward a total project budget of $250,000, with Alexandria taking the lead on contractor procurement and contract management. The agreement runs for two years with the option to renew for up to two additional one-year terms.
    Tagscommunity engagement, FAA, Interlocal Agreement, Noise Mitigation, Reagan National AirportFolderVianair
  • 2026-04-14

    SeaTac City Council to vote to create new Port of Seattle ILA negotiation committee

    Resolution Creating Port of Seattle Negotiation Council Committee Presentation Background City Council adoption of Envision SeaTac 2044 community vision Port of Seattle operates Seattle-Tacoma International Airport within city boundaries Existing 2018 Interlocal Agreement expires February 2028 Need for comprehensive approach to Port negotiations Committee Establishment Creation of Ad Hoc City Council Committee – Port of
    CategoriesEvents Tagscity council, City Of SeaTac, Interlocal Agreement, Port Of Seattle
  • 2026-04-14

    Port Of Seattle: Negotiation

    The City of SeaTac is moving to renegotiate its Interlocal Agreement with the Port of Seattle, which governs authority, collaboration, and dispute resolution between the two agencies regarding SEA Airport operations within SeaTac city limits. The current 2018 agreement expires in 2028, and on April 14, 2026, the City Council was asked to adopt a resolution creating a Port Negotiation Committee and authorizing the City Manager to begin formal negotiations. Staff recommended adopting the resolution with clarifications covering member absences and compliance with the Open Public Meetings Act.
    TagsCity Of SeaTac, Interlocal Agreement, Port Of Seattle, Sea-Tac AirportFolderMeetings
  • 2026-01-01

    Resolution creating the Port Of Seattle Negotiation Council Committee (PNC) and authorizing interlocal agreement negotiations

    The City of SeaTac passed a resolution creating the Port of Seattle Negotiation Committee (PNC), an ad hoc council committee tasked with guiding negotiations between the city and the Port of Seattle, which owns and operates Seattle-Tacoma International Airport. The committee, composed of Deputy Mayor Senayet Negusse, Councilmember Peter Kwon, and Councilmember Joe Vinson, will work toward developing a new Interlocal Agreement to replace the current 2018 agreement set to expire in February 2028. The resolution also authorizes the City Manager to formally initiate those negotiations with the Port of Seattle.
    Tagscity council, City Of SeaTac, ILA, Interlocal Agreement, Port Of SeattleFolderSeaTac
  • 6891 April 1, 2026 Resolution PNC Pdf
    2026-01-01

    Resolution creating the Port Of Seattle Negotiation Council Committee (PNC) and authorizing interlocal agreement negotiations

    The City of SeaTac passed a resolution creating the Port of Seattle Negotiation Committee (PNC), an ad hoc council committee tasked with guiding negotiations between the city and the Port of Seattle, which owns and operates Seattle-Tacoma International Airport. The committee, composed of Deputy Mayor Senayet Negusse, Councilmember Peter Kwon, and Councilmember Joe Vinson, will work toward developing a new Interlocal Agreement to replace the current 2018 agreement set to expire in February 2028. The resolution also authorizes the City Manager to formally initiate those negotiations with the Port of Seattle.
    TagsCity Of SeaTac, ILA, Interlocal Agreement, Port Of SeattleFolderSeaTac
  • 2025-12-20

    Interlocal agreement between the cities of Burien, Des Moines, Normandy Park, and SeaTac for legal and environmental review in connection with the NEPA and SEPA evaluations of the Sea-Tac Airport Sustainable Airport Master Plan

    The cities of Burien, Des Moines, Normandy Park, and SeaTac have entered into a formal interlocal agreement to coordinate their review of, and potential legal challenges to, the Port of Seattle's Sustainable Airport Master Plan, which could bring significant growth and environmental impacts to their communities over the next 20 years. Under the agreement, the four cities will jointly hire environmental consultants and legal counsel, share costs proportionally based on population, and issue unified comment letters during the NEPA and SEPA review processes. The City of SeaTac is designated as the lead administrator for contracts and finances, while all four cities must unanimously agree before filing any joint legal appeal.
    TagsEnvironmental Impact Statement, Interlocal Agreement, NEPA, SAMP, SEPAFolderSeaTac
  • 2025-11-24

    Interlocal agreement for the construction of the Miller Creek Stream Realignment and Daylighting Project

    This interlocal agreement between the City of SeaTac and the City of Burien outlines roles, responsibilities, and cost-sharing for the Miller Creek Stream Realignment and Daylighting Project, which will improve fish passage and replace an aging culvert under Des Moines Memorial Drive. Burien will design and construct the project, while SeaTac agrees to reimburse Burien up to $985,000 for work performed within SeaTac's right of way. SeaTac retains inspection and approval rights over all construction elements within its jurisdiction.
    TagsCity of Burien, City Of SeaTac, Construction, Interlocal Agreement, Miller CreekFolderSeaTac

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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

    [...]

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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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