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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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  • 2025-07-30

    SEA Stakeholder Advisory Round Table shared policy priorities – 2026 state legislative session

    The Port of Seattle and communities near Seattle-Tacoma International Airport have outlined shared policy priorities for the 2026 state legislative session, addressing key challenges including aircraft noise, air quality, and the airport's near-full capacity. The proposals include a noise insulation repair program, identifying new regional airport capacity, sustaining air quality programs for schools and residences, expanding sustainable aviation fuel production, and reducing emissions from ground transportation. These priorities reflect a joint effort between the Port and neighboring communities to partner with the state legislature on practical solutions that balance regional economic growth with the well-being of South King County residents.
    Tags2026 legislative session, legislative priorities, Port Of Seattle, Sea-Tac Airport, StART
  • 2025-07-24

    Q2 2025 financial performance briefing

    The Port of Seattle's Q2 2025 financial performance briefing reports overall operating revenues of $533.1 million for the first half of 2025, coming in $1.2 million above budget and $39.2 million higher than the same period in 2024. Operating expenses of $321.2 million came in $12.8 million under budget, driven largely by delays in outside services and equipment spending. Net operating income before depreciation reached $211.9 million, exceeding budget by $14.1 million.
    TagsBudget, Economic Development Division, Maritime, Port Of Seattle, Port Of Seattle Commission
  • 2025-07-24

    Q2 2025 financial performance briefing

    This Commission agenda memorandum provides a status report of the Port of Seattle’s Q2 2025 financial performance results. Operating revenues for the first half of 2025 were $533.1 million, $1.2 million above budget, with net operating income before depreciation of $211.9 million, $14.1 million above budget. The briefing covers Portwide, Aviation, Maritime, Economic Development, and
    TagsBudget, Economic Development Division, Maritime, Port Of Seattle, Port Of Seattle Commission
  • 2025-07-08

    Port Of Seattle regular commission meeting agenda, July 8, 2025

    This document is the agenda for the Port of Seattle Regular Commission Meeting held on July 8, 2025, covering general port business including consent agenda items related to contracts, claims, and labor agreements. The meeting addressed topics such as cruise shore power extensions, facility improvements, and diversity in contracting policies, but contains no specific discussion of Sea-Tac Airport noise policy. It does not appear to be relevant to airport noise regulations or mitigation programs.
    TagsCruise Ships, Labor, Port Of Seattle, Port Of Seattle Commission, pos_rm_2025_03_11
  • 2025-07-08

    Port Of Seattle regular commission meeting agenda, July 8, 2025

    Agenda for the Port of Seattle Regular Commission Meeting held on July 8, 2025, conducted both virtually via MS Teams and in person at Port of Seattle Headquarters. The agenda includes consent items covering claims and obligations totaling $188,335,802.95, approval of meeting minutes, and authorization items including the Biffy Facility Improvements Project, a new collective
    TagsCruise Ships, Labor, Port Of Seattle, Port Of Seattle Commission, pos_rm_2025_03_11
  • 2025-07-02

    Economic impact analysis: The Northwest Seaport Alliance, Port of Tacoma, and Port Of Seattle

    A July 2025 economic impact analysis by Community Attributes Inc. examines the economic contributions of the Northwest Seaport Alliance, Port of Tacoma, and Port of Seattle to Washington State. In 2023, NWSA operations alone supported an estimated 52,100 jobs, $4.4 billion in total compensation, and nearly $14 billion in total business output across Washington. The report also highlights more than $130 million in state fiscal impacts generated by NWSA activities that year.
    TagsEconomic Impacts, Maritime, Northwest Seaport Alliance, Port Of Seattle, Port of Tacoma
  • 2025-07-02

    Economic impact analysis: The Northwest Seaport Alliance, Port of Tacoma, and Port Of Seattle

    A July 2025 economic impact analysis by Community Attributes Inc. examines the economic contributions of the Northwest Seaport Alliance, Port of Tacoma, and Port of Seattle to Washington State. In 2023, NWSA operations alone supported an estimated 52,100 jobs, $4.4 billion in total compensation, and nearly $14 billion in total business output across Washington. The report also highlights more than $130 million in state fiscal impacts generated by NWSA activities that year.
    TagsEconomic Impacts, Maritime, Northwest Seaport Alliance, Port Of Seattle, Port of Tacoma
  • 2025-06-30

    Port Of Seattle Q2 2025 financial performance report

    The Port of Seattle's Q2 2025 Financial Performance Report, covering the period through June 30, 2025, shows Seattle-Tacoma International Airport (SEA) passenger volume running 1.6% above the same period in 2024, with approximately 53.1 million passengers projected for the full year. Portwide operating revenues came in $1.2 million above budget while operating expenses ran $12.8 million below budget, resulting in a net operating income before depreciation of $14.0 million above budget. The report covers financial results across the Aviation, Maritime, Economic Development, and Central Services divisions.
    TagsBudget, Maritime, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • 2025-06-30

    Port Of Seattle Q2 2025 financial performance report

    The Port of Seattle’s Q2 2025 Financial Performance Report covers financial results through June 30, 2025, including portwide, aviation, maritime, economic development, and central services divisions. Total operating revenues were $1.2M above budget while operating expenses were $12.8M below budget, resulting in net operating income before depreciation of $14.0M above budget. The report also includes
    TagsBudget, Maritime, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • 2025-06-26

    Environmental checklist: Seattle-Tacoma International Airport (SEA) Industrial Wastewater Treatment Plant (IWTP) Enhancement Project

    The Port of Seattle is proposing upgrades to Seattle-Tacoma International Airport's Industrial Wastewater Treatment Plant (IWTP) to better handle wastewater from aircraft deicing operations, with construction planned from 2026 to 2030. The project involves replacing aging treatment equipment at the existing facility and building a new aerated gravel bed (AGB) treatment system on a 10.6-acre site nearby to process high levels of biochemical oxygen demand (BOD) on-site. These upgrades are required to comply with tightening discharge limits set by King County and state environmental permits.
    TagsDeicing, NEPA, Port Of Seattle, Sea-Tac Airport, SEPA, Water Quality

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  • KCIA 2026 FOD Walk
    Add to CalendarMSaturday Aug 15, 7:30am - 10:00am
    9404 East Marginal Way South, Seattle, WA 98108
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    Museum of FlightSeattle, WA Saturday, August 15  •  7:30 AM – 10 AM Overview Join us for the KCIA 2026 FOD Walk—let’s keep the runway clean and have some fun together! Join Us for the KCIA 2026 FOD Walk! Get ready to step out and enjoy an awesome in-person event all about keeping our spaces

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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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