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STNI
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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  • CEQ Scoping for Cumulative Effects

    This document outlines principles and steps for conducting cumulative effects analysis in environmental impact assessments. It covers identifying cumulative effects issues, establishing geographic and temporal boundaries, and determining which effects are important from a cumulative perspective. https://ceq.doe.gov/docs/ceq-publications/ccenepa/sec2.pdf
    TagsCEQ, Council on Environmental Quality, Environmental Impact Statement, NEPA
  • 2026-01-07

    Introduction to Cumulative Effects Analysis

    This document introduces the concept of cumulative environmental effects analysis under NEPA, explaining how multiple minor actions can combine to create significant environmental impacts. It defines cumulative effects as impacts resulting from incremental effects of actions combined with past, present, and future actions, and discusses the purpose and implementation of cumulative effects analysis by federal
    TagsAirport, CEQ, Environmental Impact Statement, NEPA
  • 2025-10-24

    Permitting Reform in Action: CEQ Updates Roadmap for Agency NEPA Compliance

    Permitting Reform in Action CEQ Updates Roadmap for Agency Highlights The Council on Environmental Quality (CEQ) on Sept. 29, 2025, issued new, nonbinding guidance to assist federal agencies with implementation of the National Environmental Policy Act (NEPA), updating the prior memorandum that CEQ had issued in February 2025 in light of recent case law and
    CategoriesFrom The Web TagsCEQ, Holland & Knight, NEPA
  • 2025-02-25

    KK Law Alert: Agencies Instructed to Continue NEPA Analysis as Usual as Regulatory Landscape Shifts

    On January 20, 2025, President Trump issued Executive Order 14154, Unleashing American Energy, which directed the Council on Environmental Quality (CEQ) to propose rescinding CEQ’s NEPA regulations and to instead provide guidance on implementing the National Environmental Policy Act (NEPA). Executive Order 14154 also explicitly revoked the 1977 Carter Administration’s Executive Order 11191 which directed CEQ
    CategoriesFrom The Web, News Stories TagsCEQ, Kaplan Kirsch Rockwell
  • 2025-02-24

    Trump Administration Environmental-Justice-Related Executive Orders: Potential Implications for EPA Programs

    Download PDF (415KB) | PDF Version History IF12922.5 In January 2025, President Trump issued executive orders (E.O.s) that revoked prior E.O.s, including E.O.s related to environmental justice. Another Trump Administration E.O. directed federal agencies to close environmental justice offices and cease environmental-justice-related programs. These three E.O.s could affect environmental-justice-related programs and activities administered by the
    CategoriesFrom The Web TagsCEQ, Congress.gov, Environmental Justice, EPA, Executive Orders
  • 2005-06-24

    Council On Environmental Quality: Consideration of Past Actions In Cumulative Effects Analysis

    CategoriesKey Documents TagsCEQ, Council on Environmental Quality, Environmental Review, NEPA
  • 1997-01-01

    Considering Cumulative Effects Under the National Environmental Policy Act

    A handbook published by the Council on Environmental Quality providing guidance on analyzing cumulative effects under NEPA. The document covers scoping, describing affected environments, determining environmental consequences, and addressing cumulative impacts in environmental assessments.
    TagsCEQ, NEPA
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Upcoming Events

  • Port of Seattle Commission Meeting – Resolution No. 3848
    Add to CalendarMTuesday Apr 28: 12:00am
    Port of Seattle

    Agenda Item 10b Resolution No. 3848: Port of Seattle Participation in City of Bellevue Tax Increment Area Approval of the Port’s participation in the city of Bellevue’s tax increment area, as authorized under RCW 39.114.020. Key Points: Authorization for City of Bellevue to enact increment area up to $500,000,000 in combined assessed valuation if connected

    [...]
  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    - **SAMP Environmental Review**: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects
    - **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives
    - **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:**
    Public comment period opened for stakeholder input on airport development plans.

    [...]

[See all...]


Help study childhood asthma. Get free HEPA filter!

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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!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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