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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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  • 2014-12-31

    FAA/TRACON lease information

    This document describes a Port of Seattle ground lease (Lease #000273) with the FAA/TRACON facility located on the west side of the airfield in SeaTac, Washington. The lease covers approximately 832,011 square feet, was set to expire on September 30, 2022, and includes two renewal options extending until 2062, each for a period of 20 years. The facility serves an aeronautical terminal radar function and is subject to bond and Airport Improvement Project (AIP) funding restrictions that require coordination with Airport Finance & Budget before any changes in property use.
    TagsFAA, Map, Port Of Seattle, Sea-Tac Airport, TRACONFolderFAA
  • 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
  • 2014-12-02

    SEPA Environmental checklist: Seattle-Tacoma International Airport (STIA) North Satellite (NSAT) Terminal Expansion

    This SEPA environmental checklist prepared by the Port of Seattle covers the proposed renovation and expansion of the North Satellite Terminal at Seattle-Tacoma International Airport. The project would expand the terminal footprint from 91,500 to 154,500 square feet, adding eight new airplane gates for a total of twenty contact gates. Construction was planned in two
    TagsEnvironmental Review, North Satellite, Port Of Seattle, Sea-Tac Airport, SEPAFolderTerminal
  • 2014-10-13

    Firefighter PFAS training exercise October 13, 2014

    Two firefighters in silver proximity suits and yellow helmets operate a hose line deploying fire-suppression foam across a tarmac area. A large cylindrical aircraft fuselage mockup is visible in the background, consistent with an Aircraft Rescue and Firefighting (ARFF) training exercise at an airport facility.
    TagsAircraft Maintenance, Fire fighting, Health, PFAS, pollution, Sea-Tac Airport, Stormwater, Water QualityFolderFire - PFAS
  • 2014-06-25

    Highline Forum Agenda: Port Competitiveness — June 25, 2014

    The Highline Forum held a meeting on June 25, 2014, at the Seattle-Tacoma International Airport Conference Center, hosted by the Port of Seattle with a theme of Port Competitiveness. The agenda included a welcome and presentation on Pacific Northwest Port Competitiveness by Port of Seattle Commissioner John Creighton, followed by a Sea-Tac Airport update from Mark Reis. The two-hour session also included time for public comments and a discussion of emerging issues.
    TagsHighline Forum, John Creighton, Mark Reis, Port Of Seattle, Sea-Tac AirportFolderHighline Forum 2014
  • 2014-06-13

    Seattle-Tacoma International Airport competition plan June 13, 2014

    Seattle-Tacoma International Airport's 2014 Competition Plan outlines how the airport manages its 79 gate positions across six concourses, with 65 gates preferentially leased by airlines and 14 controlled as common-use gates by the Port of Seattle. The plan describes policies ensuring fair access for new and existing carriers, prohibiting exclusive gate leases, and setting rates to recover costs without cross-subsidies. It also details gate monitoring procedures and expansion plans for the North Satellite terminal to accommodate growing demand from carriers such as Alaska Airlines and Delta.
    TagsAlaska Air, Commercial Aviation, Gate Access, North Satellite, Port Of Seattle, Sea-Tac AirportFolderSea-Tac Airport
  • 2014-05-01

    Air Cargo Market Assessment: Seattle-Tacoma International Airport

    This May 2014 technical report, prepared by Leigh Fisher and Webber Air Cargo, Inc. for the Port of Seattle, assesses the air cargo market at Seattle-Tacoma International Airport (Sea-Tac). It examines industry trends, carrier market shares, competing gateways, international trade flows, and the airport's cargo facilities and handling service providers. The report concludes with an outlook and recommendations to support future cargo growth at Sea-Tac.
    TagsCargo, Leigh-Fisher, Port Of Seattle, SAMP, Sea-Tac Airport, SEPAFolderTechnical Memos
  • 2014-02-25

    Policy And Procedures Concerning The Use Of Airport Revenue; Proceed from Taxes on Aviation Fuel

    Policy And Procedures Concerning The Use Of Airport Revenue; Proceed from Taxes on Aviation Fuel Created by the Federal Aviation Administration Port of Seattle Posted by the Federal Aviation Administration on Feb 25, 2014 The Port of Seattle, owner and operator of Seattle – Tacoma International Airport (“Sea-Tac”), agrees that proceeds generated from taxes on
    CategoriesFrom The Web TagsAviation Fuel, Commercial Aviation, FAA, Port Of Seattle, Sea-Tac Airport
  • 2013-12-05

    King County Parcel Viewer – Des Moines Business Park Parcel 0922049342

    King County GIS Parcel Viewer screenshot dated December 5, 2013, showing parcel 0922049342 at 21202 24th Ave S, Des Moines, WA, identified as Des Moines Business Park Building 4A. The parcel, held by Duke Realty Co, has an appraised value of $56,260,300 and a lot area of 490,456 square feet, located within the Sea-Tac Airport vicinity under levy code 1126.
    TagsDes Moines, King County, Parcel Viewer, Sea-Tac AirportFolderProperties
  • 2013-10-23

    Future (2018) NEM/NCP Noise Exposure Map: Seattle-Tacoma International Airport 14 CFR Part 150 Study Update

    This map, prepared by Landrum & Brown for the Port of Seattle's 14 CFR Part 150 Study Update, shows projected aircraft noise exposure around Seattle-Tacoma International Airport for the year 2018. It illustrates three noise contour zones (DNL 65, 70, and 75 dBA), with the total area above DNL 65 dBA covering approximately 7.3 square miles and affecting an estimated 3,771 housing units and 9,712 residents. The map also identifies noise-sensitive land uses such as schools, churches, hospitals, and libraries within the affected area, and was certified by the Port of Seattle's Director of Aviation Planning and Environmental Programs.
    TagsEIS, Environmental Impact Statement, Landrum & Brown, Noise Exposure Update, Part 150, Port Of Seattle, Sea-Tac Airport, Third RunwayFolder2013

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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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