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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.

TagNoise Mitigation(218)

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  • 2017-10-16

    Letter from Port Of Seattle Commission to Burien City Council regarding BAC white paper

    In this October 2017 letter, Port of Seattle Commission President Tom Albro responds to the Burien City Council regarding inaccuracies in a draft white paper produced by the Burien Airport Committee. Albro clarifies that airport improvements are funded primarily through Passenger Facility Charges paid by airline travelers—not local property taxes—and defends the Port's noise mitigation and air quality efforts, noting nearly $400 million spent on programs including home insulation and school soundproofing. He also invites Burien to participate in a new airport stakeholder advisory roundtable as a forum for ongoing community engagement on airport-related issues.
    TagsBurien Airport Committee, Noise Mitigation, PFC, Port Of Seattle, Sea-Tac AirportFolderSP #2
  • 2016-11-09

    Archives Records Transmittal & Box Content List: Representative Upthegrove Papers, Sea-Tac Airport Third Runway Files

    This is an archival transmittal record from the Washington State Archives documenting the transfer of Representative Dave Upthegrove's papers related to Sea-Tac Airport's Third Runway and associated noise mitigation files. The collection spans records from 1994 to 2009 and includes files on airport noise studies, school district mitigation funding, community redevelopment areas affected by airport expansion, and related legislation such as the 'Dirty Fill Bill' and Airport Citizens Committee bills. The records were received by the Washington State Archives on November 9, 2016, under accession number AR-20161110-01.
    TagsDave Upthegrove, Noise Mitigation, Sea-Tac Airport, Third Runway, Washington State Digital ArchivesFolderMiscellaneous
  • 2016-10-21

    Airport noise compatibility planning (14 CFR Part 150)

    This Federal Aviation Administration (FAA) page outlines the agency's Airport Noise programs, covering two key regulatory frameworks: Airport Noise Compatibility Planning (14 CFR Part 150) and Airport Noise and Access Restrictions (14 CFR Part 161). It provides links to funding summaries, noise exposure maps, planning data by state, and regulatory guidance including advisory circulars on noise control and sound insulation for residences near airports. The page also references the FAA's Land Use Planning Initiative, which offers guidance to airport sponsors and local agencies on improving compatibility between airports and surrounding communities.
    TagsFAA, Noise Mitigation, Part 150, Part 161FolderSP #2
  • 2016-10-11

    Single Family Sound Insulation Program Authorization — $14.5 Million for 123 Homes (October 2016)

    Presentation slide describing a new boundary Single Family Sound Insulation program with authorization of $14,535,000, covering 123 eligible homes. Funding sources include approximately $8.4 million from FAA Grants plus Port funding from PFCs, ADF, and sale of previously purchased noise land.
    TagsFAA, Noise Mitigation, Port Of Seattle, Sound InsulationFolderNoise Mitigation
  • 2014-12-09

    Grant closeout letter: AIP grant number 3-53-0062-131-2013

    The Federal Aviation Administration (FAA) issued a grant to the Port of Seattle to fund noise mitigation work at Olympic Elementary School near Seattle-Tacoma International Airport, with a maximum federal contribution of $3.9 million covering 80% of allowable project costs. The grant (AIP Grant Number 3-53-0062-131-2013) was formally closed out on December 9, 2014, with a final paid amount of $3,879,406 after all work was confirmed satisfactorily completed and costs verified as reasonable and eligible. The Port of Seattle is required to retain all supporting project documentation for a minimum of three years from the final reimbursement request, in accordance with Federal Regulation 49 CFR Part 18.42.
    TagsAIP, FAA, Noise Mitigation, Port Of Seattle, Sea-Tac AirportFolderSP #1
  • 2014-07-10

    RE: Highline School District – Olympic payment

    In July 2014, the FAA approved a final grant payment of $3,879,406 to the Port of Seattle for noise mitigation work completed at Olympic Elementary School near Seattle-Tacoma International Airport. The total project cost was approximately $11.36 million, funded through a combination of FAA Airport Improvement Program (AIP) grants, Airport Development Fund (ADF) contributions, and Ad Valorem Tax revenues. Port of Seattle Airport Noise Programs Manager Stan Shepherd notified the treasury department of the approved funds and requested confirmation of availability to issue full payment to the school district.
    TagsFAA, Highline Schools, Noise Mitigation, Port Of Seattle, Stan ShepherdFolderSP #1
  • 2013-10-01

    2013 Part 150 Noise Compatibility Study Update — Volume One Cover Page

    Cover page of the Final Part 150 Noise Compatibility Study Update for Seattle-Tacoma International Airport, published October 2013 by the Port of Seattle. The document cover includes the Port of Seattle logo, three photographs of airport operations, and a background image of the airport terminal with Mount Rainier visible in the distance.
    TagsNoise Mitigation, Part 150, Port Of Seattle, Sea-Tac AirportFolder2013
  • 2013-09-24

    Port Of Seattle Resolution No. 3683

    Resolution No. 3683 is a Port of Seattle Commission resolution concluding the 2013 update to the Federal Aviation Regulation (FAR) Part 150 Noise and Land Use Compatibility Study for Seattle-Tacoma International Airport. It directs Port staff to submit updated Noise Exposure Maps to the FAA and implements a range of noise-reduction measures, including school sound insulation, preferential runway use at night, and voluntary rescheduling of nighttime short-haul flights. The resolution builds on previous Part 150 Studies from 1985, 1993, and 2000, incorporating public input and a formal environmental review process.
    TagsNoise Mitigation, Part 150, Port Of Seattle CommissionFolderResolutions
  • 2013-09-24

    Port Of Seattle Part 150 Study — Continuing Noise-Mitigation Programs Requiring No Modification (Page 7, September 24, 2013)

    A Port of Seattle presentation slide listing five continuing noise-mitigation programs requiring no modifications: Property Advisory Service, Local Government Remedy Support, Funding for Land Use and Noise Compatibility Planning, Prepare Cooperative Development Agreements, and Explore Limited Rescheduling of Nighttime Flights. The slide is branded with the Port of Seattle logo and relates to Sea-Tac Airport noise compatibility planning efforts.
    TagsNoise Mitigation, Part 150, Port Of Seattle, Sea-Tac AirportFolderCommission Presentation
  • 2013-09-24

    Port Of Seattle Part 150 Study — Project Implementation Conditions (Page 15, September 24, 2013 Commission Presentation)

    A Port of Seattle presentation slide titled 'Project Implementation' outlines conditions for noise mitigation projects at Sea-Tac Airport, including required FAA approval of mitigation items, Port Commission approval, FAA Airport Improvement Program (AIP) grant funding covering up to 80% of eligible costs, and a Port of Seattle 20% match. Project implementation may begin after the FAA issues a Record of Approval, an FAA grant is approved and received, and project specifics are developed.
    TagsAirport Improvement Program, Noise Mitigation, Part 150, Sea-Tac AirportFolderCommission Presentation

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Upcoming Events

  • 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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