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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.

TagWashington State Legislature(117)

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  • 2024-01-16

    Senate bill report SB 5955: Mitigating harm and improving equity in large port districts

    Washington Senate Bill 5955 would require large port districts operating airports with more than 900 daily flights — such as Sea-Tac — to launch a remedial mitigation program addressing failed soundproofing, air quality, green space, and community facilities in noise-impacted neighborhoods. The bill would fund these programs through a portion of the port's annual property tax levy revenue and establish a state environmental equity fund, managed by the Department of Commerce, to provide grants and loans to qualifying ports. Property owners within ten miles of the airport experiencing 55 decibels or more of aircraft noise would be eligible for free inspections and mitigation equipment, with priority given to homes where previously installed soundproofing has failed.
    TagsNoise Mitigation, Port Of Seattle, Property Tax Levy, SB5955, Washington State LegislatureFolderSB5955
  • 2024-01-15

    HB 2103 large port districts – CSI sign-in sheet

    This document is a sign-in sheet for public testimony on Washington State House Bill 2103, concerning large port districts, recorded in January 2024. The bill drew significant public interest, with the majority of participants — including representatives from the cities of Des Moines, Burien, and SeaTac, as well as noise advocacy groups like SeatacNoise.Info and Quiet Skies Puget Sound — expressing support, while opponents included the Port of Seattle and the Washington Public Ports Association. The testimony period reflects an ongoing community debate over local government oversight of large port districts, particularly in relation to aircraft noise impacts around Seattle-Tacoma International Airport.
    TagsHB2103, Port Of Seattle, Quiet Skies Puget Sound, Sea-Tac Airport, Washington State LegislatureFolderSB5955
  • 2024-01-15

    SB 5955 Large port districts – committee sign-in sheet

    This document lists sign-ins for a Washington State legislative hearing on SB 5955, a bill concerning large port districts, held in January 2024. The overwhelming majority of participants — including residents, neighborhood groups, and city officials from communities like SeaTac, Des Moines, and Seattle — registered in support of the bill, while only two individuals, representing the Port of Seattle and the Washington Public Ports Association, registered in opposition. The bill and its broad community backing appear to be driven by concerns about airport noise and its impact on neighborhoods surrounding Seattle-Tacoma International Airport.
    TagsPort Of Seattle, Quiet Skies Puget Sound, SB5955, Sea-Tac Airport, Washington State LegislatureFolderSB5955
  • 2024-01-08

    Senate Bill 5990: Integrating Environmental Justice Considerations into Certain Project Decisions

    Washington Senate Bill 5990, introduced in January 2024, aims to reduce environmental health disparities by requiring assessment of cumulative pollution burdens on overburdened communities before approving new projects. The bill defines key terms such as 'disproportionate impact' and 'environmental justice impact statement,' and establishes a framework to evaluate stressors like air pollution, water quality, and public health risks. Note: this bill addresses broad environmental justice concerns statewide and does not specifically address Sea-Tac Airport noise policy.
    TagsEnvironmental Impact Statement, Environmental Justice, HB2070, Legislation, RCW, Washington State LegislatureFolderHB2070
  • 2024-01-08

    HB 2070: Integrating Environmental Justice Considerations into Certain Project Decisions

    Washington House Bill 2070 (2024) aims to reduce environmental health disparities by requiring environmental justice impact assessments for projects that may add pollution burdens to already overburdened communities. The bill defines key terms such as 'disproportionate impact' and 'adverse cumulative stressors' to evaluate whether a proposed project would worsen air, water, or other environmental conditions in vulnerable neighborhoods. Note: this bill addresses broad environmental justice considerations statewide and does not specifically concern Sea-Tac Airport noise policy.
    TagsEnvironmental Justice, HB2070, Legislation, RCW, Washington State LegislatureFolderHB2070
  • 2024-01-03

    House Bill 2103: Mitigating Harm and Improving Equity in Large Port Districts

    Washington House Bill 2103 (2024) requires large port districts operating major airports, such as Seattle-Tacoma International Airport, to dedicate a growing portion of their property tax levy revenue toward programs that reduce noise and air pollution impacts on nearby communities. The bill was prompted by health and equity concerns, as studies show that communities of color living close to Sea-Tac face higher rates of asthma, heart disease, premature births, and other health disparities. Mitigation programs funded under the bill may include repairing failed soundproofing equipment, providing air purifiers, creating urban green spaces, and supporting indoor community facilities in affected neighborhoods.
    TagsEnvironmental Justice, HB2103, Legislation, Noise Mitigation, Property Tax Levy, SB5955, Washington State LegislatureFolderSB5955
  • 2024-01-01

    Senate Bill 5990: Integrating Environmental Justice Considerations into Certain Project Decisions

    Washington Senate Bill 5990, introduced in the 2024 legislative session, aims to reduce environmental health disparities by requiring detailed impact assessments before approving projects in communities already burdened by pollution. The bill defines key terms such as 'disproportionate impact' and 'environmental justice impact statement,' and establishes a framework for evaluating whether new or expanded projects would worsen cumulative health and environmental stressors in overburdened communities. Note: this bill addresses broad environmental justice policy statewide and does not specifically address Sea-Tac Airport noise or aviation-related impacts.
    TagsEnvironmental Justice, Legislation, RCW, SEPA, Washington State LegislatureFolderState
  • 2024-01-01

    Senate Bill 5955: Mitigating Harm and Improving Equity in Large Port Districts

    Washington Senate Bill 5955 (2024) requires large port districts operating airports, such as the Port of Seattle which runs Sea-Tac International Airport, to dedicate a growing share of their annual property tax levy revenue toward programs that reduce noise and air pollution impacts on nearby communities. Starting in 2024, at least half of any levy revenue increase must fund mitigation efforts, rising to a minimum of 1% of total levy revenue by 2025 and increasing by 1% each year up to a cap of 10%. The bill was introduced in response to documented health disparities—including higher rates of asthma, heart disease, and premature births—affecting Black, Hispanic, Native Hawaiian, and Pacific Islander residents who disproportionately live within 10 miles of Sea-Tac Airport.
    TagsEnvironmental Justice, Legislation, Noise Mitigation, Property Tax Levy, SB5955, Washington State LegislatureFolderSB5955
  • 2023-10-01

    2023-25 Biennium Climate Commitment Act Investments to Benefit Overburdened Communities and Tribes

    Washington State's Climate Commitment Act invested over $2.1 billion in the 2023-25 budget cycle to reduce greenhouse gas emissions, with an estimated $924 million (43%) directed to overburdened communities and $155 million (7.3%) specifically benefiting Tribes. Key investments include rebates for energy-efficient home equipment, weatherization assistance for low-income households, transit grants, bike and pedestrian safety improvements, and air quality programs in heavily polluted communities. An additional $142 million was directed to salmon restoration projects important to Tribal culture and treaty rights.
    TagsClimate Commitment Act, Environmental Justice, State of Washington, transportation, Washington State LegislatureFolderCCA
  • 2023-09-28

    Substitute House Bill No. 519: Providing for nine port commissioners elected from districts coextensive with county councilman districts in Class AA counties

    Washington State Substitute House Bill No. 519 proposes expanding port district commissions in Class AA counties from three to nine commissioners, each elected from districts that align with county councilman districts. The bill outlines election procedures, term lengths, and district boundaries for the new commissioner positions. Though focused on port governance structure, this legislation directly affects the Port of Seattle, which oversees Sea-Tac Airport and its surrounding communities.
    Tagslocal government, Port Of Seattle, Port of Seattle Redistricting, RCW, Washington State LegislatureFolderState

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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

    [...]

[See all...]


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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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