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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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  • 2017-06-01

    First amendment to lease and concession agreement

    This document is a First Amendment to a Lease and Concession Agreement between the Port of Seattle and SP-LW, LLC, shifting the concessionaire's food and beverage operation from Unit CC-6 to Unit NS-23 in the North Satellite Terminal at Seattle-Tacoma International Airport. The amendment updates key lease terms, including an approximately 1,800-square-foot premises, a ten-year lease expiring December 31, 2031, and an initial minimum annual guarantee of $180,000. The Port also agreed to reimburse the concessionaire $360,095.72 for costs already incurred at the original unit.
    TagsNorth Satellite, North Terminal, Port Of Seattle, Sea-Tac Airport, TerminalFolderMeetings
  • 2017-06-01

    Average Noise Per Day LEQ Aircraft and Community — June 2017

    This report from the Port of Seattle presents daily average noise levels recorded at Sea-Tac Airport monitoring stations (NMTs) throughout June 2017. It breaks down sound levels in decibels (dB LEQ) into three categories: community noise, aircraft noise, and a combined total, measured at more than 20 locations surrounding the airport. The data shows that aircraft noise levels frequently exceeded community noise levels at many monitoring sites, with some stations recording combined totals above 65 dB on multiple days.
    TagsNoise, Noise Monitors, Port Of Seattle, Sea-Tac AirportFolderNoise
  • 2017-06-01

    Environment and sustainability programs

    Seattle-Tacoma International Airport's Environment and Sustainability Programs outline the airport's efforts to become the greenest, most energy-efficient airport in North America across four key areas: air quality and emissions reduction, green transportation, waste reduction and recycling, and water and wildlife management. Initiatives include providing pre-conditioned air and electricity at gates to cut aircraft engine greenhouse gas emissions by over 40,000 metric tons, transitioning vehicles to cleaner energy sources, and working toward recycling 60 percent of solid waste by 2020. The airport also actively manages 160 acres of wetland habitat, uses avian radar to protect wildlife, and has relocated more than 800 birds to reduce hazards to aircraft.
    TagsAlternative Fuels, Environment, Greenhouse gases, Port Of Seattle, Sea-Tac AirportFolderSP #1
  • 2017-05-12

    SeaTac Airport history

    Seattle-Tacoma International Airport (Sea-Tac) has grown from a modest wartime airfield dedicated in 1944 on 906 acres of land near Bow Lake into one of the busiest airports in the United States, now serving nearly 47 million passengers annually. Over the decades, the airport underwent numerous expansions, security upgrades, and name controversies while navigating major events such as airline deregulation, the post-9/11 security overhaul, and a community-opposed third runway completed in 2008. Today, Sea-Tac supports more than 87,000 jobs and generates over $22 billion in economic activity for the region.
    TagsAirport Expansion, History, Port Of Seattle, Sea-Tac Airport, Third RunwayFolderHistory
  • 2017-04-14

    Burien fought the FAA over airplane noise and won, so far

    Residents teamed up with the City of Burien to fight the FAA over airplane noise and won, at least so far. Neighbors noticed an increase in airplane noise last summer and say the FAA started diverting jet propeller planes from Sea-Tac to the west over Burien, when take-off was to the north. Residents complained about
    CategoriesFrom The Web TagsCATEX, City of Burien, FAA, KIRO7, Noise, Quiet Skies Coalition, Sea-Tac Airport
  • 2017-02-03

    Sea-Tac Airport breaks ground on multi-million dollar expansion

    North Terminal will gain 201,000 sq. ft.; Dining and shopping areas will expand 02/03/2017 Officials from the Port of Seattle and Sea-Tac Airport broke ground on Feb. 3 on a multi-million dollar project that will expand and update much of the facility’s aging North Satellite plus double the dining and shopping areas. More than 201,000
    CategoriesFrom The Web TagsHighline Times, North Satellite, SAMP, Sea-Tac Airport, Sustainable Airport Master Plan
  • 2017-02-01

    Flight Corridor Open House, February 2017 — Tom Albro, Matt Mahoney, Michael Matthias

    TagsDes Moines, Flight Corridor Safety Program, Open House, Sea-Tac AirportFolderDes Moines
  • 2017-01-18

    Memorandum: Claims against the Federal Aviation Administration

    A January 2017 legal memorandum from law firm Dentons to the Quiet Skies Coalition outlines potential claims against the Federal Aviation Administration (FAA) over a new flight departure route introduced at Seattle-Tacoma International Airport in summer 2016. The new route directs aircraft on a fixed low-altitude path over schools, parks, and residential areas in the City of Burien without prior public notice. The memo concludes that the FAA likely violated the National Environmental Policy Act (NEPA) by failing to conduct or document the required environmental review before implementing the route.
    TagsBurien 250 Turn, FAA, NEPA, Quiet Skies Coalition, Sea-Tac AirportFolderSP #1
  • 2016-12-19

    Resolution No. 384: Establishing a committee to address issues related to Seattle Tacoma International Airport

    The City of Burien, Washington passed Resolution No. 384 in December 2016, establishing the Burien Airport Committee to advise the City Council on issues related to Seattle-Tacoma International Airport. The committee, composed of three council members, up to three local business representatives, and up to three Burien residents, was created to evaluate both the positive and negative impacts of the airport, including noise, traffic, land use, and mitigation measures. All committee meetings are open to the public under Washington State's Open Public Meetings Act.
    TagsAdvisory Committees, Burien Airport Committee, City of Burien, Port Of Seattle, Sea-Tac AirportFolderSP #2
  • 2016-12-02

    Tomorrow @Sea-Tac Coalition advertising supplement

    This December 2016 advertising supplement from the Tomorrow@Sea-Tac Coalition outlines the Port of Seattle's plans to expand and modernize Seattle-Tacoma International Airport, which was the fastest-growing major hub in the country and expected to reach 66 million passengers by 2034. The document highlights billions of dollars in planned capital improvements under a Sustainable Airport Master Plan, covering aircraft operations, passenger facilities, and cargo services, while emphasizing commitments to environmental sustainability. It also spotlights workforce development efforts, noting that Sea-Tac directly and indirectly supports nearly 172,000 regional jobs and actively works to create opportunities for diverse and minority-owned businesses in surrounding South King County communities.
    TagsPort Of Seattle, Puget Sound Business Journal, SAMP, Sea-Tac Airport, Sustainable Airport Master PlanFolderSea-Tac Airport

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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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