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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.

TagEnvironmental Justice(100)

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  • 2020-05-27

    South King County Fund update

    In November 2018, the Port of Seattle Commission set aside $10 million over five years (2019–2023) to benefit near-airport communities in South King County, with funds intended to address airport noise and support environmental health and sustainability projects. In June 2019, the Commission adopted eight guiding principles to govern the fund, emphasizing community input, equity, innovation, and matching funds where possible. This May 2020 presentation to the Highline Forum provided an update on the fund's progress and priorities.
    TagsEnvironmental Justice, Highline Forum, Port Of Seattle, Sea-Tac Airport, South King County FundFolderHighline Forum 2017
  • 2020-04-01

    Preterm birth rates among mothers exposed to ultrafine particles from jet exhaust

    A peer-reviewed study by researchers from Tufts, UCLA, USC, and the University of Washington found that mothers living near airports and exposed to ultrafine particles from jet exhaust face elevated rates of preterm birth. The research, published in Environmental Health Perspectives in 2020, is particularly relevant to communities near large airports like Sea-Tac, where millions of residents live within the impact zone of aircraft emissions. The findings carry significant environmental justice implications, as near-airport communities with high pollution exposure are often among the most vulnerable populations.
    TagsAviation Emissions, Environmental Justice, Health, Neelakshi Hudda, Ultrafine ParticlesFolderHealth
  • 2020-01-17

    House Bill 2688: Relating to transportation policy goals

    Washington House Bill 2688, introduced in the 2020 legislative session, proposes updating the state's transportation policy goals to prioritize accessibility, environmental justice, public health, and climate by replacing older goals focused primarily on economic vitality and mobility. The bill would require transportation projects to undergo a multi-agency evaluation—including input from vulnerable and impacted communities—before receiving budget authorization. Projects that do not meet a minimum score based on the new policy goals would generally be excluded from funding.
    TagsEnvironmental Justice, Legislation, non-aviation transportation, State of Washington, Washington State LegislatureFolderLegislation
  • 2019-12-10

    Resolution No. 3767: Duwamish Valley Community Benefits Commitment Policy Directive

    Port of Seattle Commission Resolution No. 3767, adopted December 10, 2019 (presented at meeting October 25, 2022), establishing the Duwamish Valley Community Benefits Commitment Policy Directive to guide implementation of the Duwamish Valley Community Equity Program. The resolution references prior resolutions 3736, 3746 (Priority Hire Policy Directive), 3747 (Welcoming Port Policy Directive), and 3737 (Diversity
    TagsCentury Agenda, Duwamish River, Environmental Justice, Port Of Seattle CommissionFolder2026
  • 2022 10 25 rm 11a attachment 01 duwamish valley equity program pdf
    2019-12-10

    Resolution No. 3767: Duwamish Valley Community Benefits Commitment Policy Directive

    Port of Seattle Commission Resolution No. 3767, adopted December 10, 2019 (presented at meeting October 25, 2022), establishing the Duwamish Valley Community Benefits Commitment Policy Directive to guide implementation of the Duwamish Valley Community Equity Program. The resolution references prior resolutions 3736, 3746 (Priority Hire Policy Directive), 3747 (Welcoming Port Policy Directive), and 3737 (Diversity
    TagsCentury Agenda, Duwamish River, Environmental Justice, Port Of Seattle CommissionFolder2026
  • 2019-11-07

    EPA Region 10 response to Debi Wagner regarding Sea-Tac Airport environmental impacts and SAMP Near-Term Projects

    These two letters from 2019 address community concerns about noise and environmental impacts from Seattle-Tacoma International Airport (Sea-Tac). The EPA's Region 10 Regional Administrator responds to a Burien resident, explaining the agency's limited role in the NEPA review process and directing her to engage with the FAA regarding the Sustainable Airport Master Plan (SAMP) Environmental Assessment. Separately, the Port of Seattle's Executive Director responds to Burien's mayor, acknowledging community concerns about aircraft noise and emphasizing the Port's commitment to collaboration through forums such as the Sea-Tac Stakeholder Advisory Round Table (StART).
    TagsEnvironmental Justice, EPA, NEPA, SAMP, Sea-Tac AirportFolderSP #2
  • 2019-09-23

    Environmental Justice Task Force information

    Washington State's Environmental Justice Task Force, convened by the Governor's Interagency Council on Health Disparities, was established to recommend strategies for reducing environmental health disparities across the state, with a final report due to the legislature and Governor by October 31, 2020. The Task Force focuses on improving health outcomes for communities most severely impacted by environmental hazards, including low-income populations and communities of color. Its work includes developing guidance on community engagement, measurable health disparity goals, and model policies prioritizing vulnerable populations.
    Tagscommunity engagement, Environmental Justice, Front And Centered, Health, State of WashingtonFolderSP #2
  • 2019-05-30

    SR 509 NEPA Re-evaluation: Traffic, Emissions, and Noise Impacts on Burien and Environmental Justice Communities

    A community analysis of the SR 509 highway extension near Sea-Tac Airport warns that the project will significantly increase truck and vehicle traffic through Burien, worsening air quality and noise for nearby residents. Critics argue that neither WSDOT nor the FAA has conducted adequate site-specific or cumulative impact studies, despite actual emissions being nearly three times higher than 1996 projections and the area already being identified as an environmental justice community. The document calls for a comprehensive cumulative analysis of combined highway traffic and airport operations to properly assess public health risks.
    TagsBurien, Environmental Justice, NEPA, SR509, WSDOTFolderComments
  • Dw20260820 509 NEPA re evaluation pdf
    2019-05-30

    SR 509 NEPA Re-evaluation: Traffic, Emissions, and Noise Impacts on Burien and Environmental Justice Communities

    Analysis citing the WSDOT SR 509 Phase 1 Environmental Re-evaluation (May 2019) comparing 2003 FEIS forecasts of 7,900 vph against re-evaluation forecasts of 4,700 vph on the SR 509 extension between I-5 and 24th Avenue S/28th Avenue S interchange, with tolling assumed. Documents that the 2045 Build condition adds 500–1,400 vph on existing SR 509
    TagsBurien, Environmental Justice, NEPA, SR509, WSDOTFolderComments
  • 2019-05-07

    Federal Way Mayor and City Council Letter to UW Professors Larson and Seto Requesting Expansion of MOV-UP Ultrafine Particle Study Near Sea-Tac Airport

    In May 2019, Federal Way Mayor Jim Ferrell and the unanimous City Council wrote to University of Washington researchers requesting an expansion of the MOV-UP study measuring ultrafine particle pollution around Seattle-Tacoma International Airport. The letter calls for three key additions: a baseline measurement site unaffected by air traffic, drone-based vertical air sampling before and after aircraft landings at parks, schools, and social justice impact areas, and the design of a permanent 24/7 ultrafine particle monitoring network. The city also offered to support a Port of Seattle grant application to fund the expanded research and pledged to encourage other affected communities to join the effort.
    CategoriesCorrespondence TagsDEOHS, Edmund Seto, Environmental Justice, Federal Way, MOV-UP, Sea-Tac Airport, Susan Honda, Timothy Larson, Ultrafine Particles, University Of WashingtonFolderFederal Way

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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.
read more...

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.
continue...

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