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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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  • Ecylogo news card 630
    2026-05-12

    State penalizes four organizations over $19,000 for fuel tank back fees at King County International Airport

      Department of Ecology News Release – May 13, 2026 SEATTLE  – After failing to pay a decade’s worth of back fees related to their underground storage tanks supplying King County International Airport – Boeing Field, Signature Aviation, Shultz, Inc., Sky Services, and King County have been penalized $19,681 by the Washington Department of Ecology. The
    CategoriesFrom The Web TagsAviation Fuel, Environment, KCIA, King County, pollution
  • 2026-04-13

    KCIA Roundtable Advisory Committee

    Meeting Objectives • Confirm topic priorities for 2026 Roundtable meetings • Discuss the Vision 2025 Preferred Alternative Concept Agenda 5:00 PM – Welcome (Ali Lee) 5:02 PM – Roll Call (Ayako Shapiro) 5:03 PM – Approve March Meeting Minutes (Ali Lee) 5:05 PM – Prioritization Exercise (Jenny Thacker) Topics identified during Feb 10th Ad Hoc
    CategoriesEvents TagsAirport Committees, King County, NEPA
  • 2026-01-06

    King County Department of Community & Environmental Development Parks Division: Neighborhood Park Site Selection and Activities Preference Questionnaire

    A King County Parks Division questionnaire sent to residents seeking input on the selection and development of a new neighborhood park, funded by the 1968 Forward Thrust bond issue with a budget of $70,000 per site. Residents were asked to rank preferred park activities such as pathways, sandboxes, nature trails, and play areas, as well as future recreational facilities like baseball fields and tennis courts. The form also invited residents to volunteer for a citizen's advisory committee involved in the park planning process.
    TagsAdvisory Committees, community development, community engagement, King County, ParksFolderKing County
  • 2026-01-06

    Letter from Virginia Lane Regarding Zoning Non-Compliance at Glendale and Glacier Schools

    A community member raises concerns about zoning non-compliance at closed Highline School District schools, including Glendale and Glacier, noting that the County was aware of violations as early as a July 18th letter. The document questions whether proper permitting processes were followed before tenants moved into Glacier, and references a list of non-compliant businesses in the Highline vicinity submitted to King County zoning officials. The author expresses broader concern about lack of transparency and accountability among county officials and the school district, and worries that a two-year lease at Glacier could set a long-term precedent.
    CategoriesCorrespondence Tagscommunity engagement, Highline Schools, King County, Land UseFolderHighline School District
  • 2026-01-06

    Sea-Tac Communities Plan: Airport Vicinity Area and Planning Jurisdictional Area (Section 3.2.1)

    This document describes the planning study area surrounding Seattle-Tacoma (Sea-Tac) Airport, which encompassed the entire Highline School District and portions of the Federal Way and South Central School Districts. The study identified four sub-areas forming an 'airport vicinity' zone — defined as the area of primary airport-community incompatibility — to guide policy and land-use planning. King County holds major planning responsibility for the broader sub-regional area, with the Sea-Tac Communities Plan intended to integrate with the wider Highline Community Plan through post-plan coordination.
    TagsAirport Layout Plans, Federal Way, Highline Community Plan, King County, Sea-Tac Communities Plan, STCPFolderHighline School District
  • 2025-12-01

    Puget Sound Region Final Comprehensive Climate Action Plan

    The Puget Sound Region Final Comprehensive Climate Action Plan, published December 1, 2025 by the Puget Sound Clean Air Agency, outlines greenhouse gas reduction strategies for King, Kitsap, Pierce, and Snohomish Counties in the Seattle-Tacoma-Bellevue metropolitan area. The plan covers six sectors—Built Environment, Transportation, Municipal Solid Waste and Wastewater, Natural and Working Lands, Refrigerants, and Consumption—with goals, emission projections, and workforce planning analysis. Note that this document focuses on regional climate and air quality policy rather than Sea-Tac Airport noise regulations specifically.
    TagsClimate, Environmental Protection Agency, King County, PSCAAFolderPSCAA
  • 2025-09-09

    Order No. 2025-09: An order of the Port Of Seattle Commission to rename the South King County Community Impact Fund as the South King and Port Communities Fund

    The Port of Seattle Commission proposes renaming the South King County Community Impact Fund (SKCCIF) to the 'South King and Port Communities Fund' to reflect the program's expanded geographic reach across King County areas identified as having the greatest need. Since its establishment in 2018, the fund has committed $9.25 million to 52 community-based organizations, and a reauthorized five-year plan (2025–2029) will direct up to $14 million toward economic opportunity and environmental improvement programs. The order also reduces the required advance notice to Commissioners for recommended contracts from 14 days to 7 days to streamline the contracting process with community partners.
    Tagscommunity development, King County, Port Of Seattle, Port Of Seattle Commission, South King County FundFolderResolutions
  • 2025-08-11

    Impacts of Aviation Emissions on Community Health

    Researchers from the University of Washington presented findings to King County's Airport Round Table Advisory Committee showing that aviation emissions pose significant public health risks to nearby communities. Airports account for 70% of airborne lead emissions in King County, primarily from piston-engine aircraft burning leaded aviation gasoline, and multiple studies link living close to such airports with elevated blood lead levels in children. The presentation also highlighted broader health harms from aviation pollutants—including ultrafine particles and nitrogen oxides—affecting neurological, cardiovascular, and respiratory health.
    CategoriesMeetings TagsAvGas, Aviation Emissions, Elena Austin, King County, Lead, UWDEOHSFolderKCIA (Boeing Field)
  • 2025-07-02

    Draft Cultural Resources Assessment for the Port Of Seattle Industrial Wastewater Treatment Plant Project, King County, Washington

    This July 2025 draft cultural resources assessment, prepared by Stell for WSP USA and the Port of Seattle, evaluates potential cultural and archaeological impacts associated with a proposed Industrial Wastewater Treatment Plant project in King County, Washington. The 10.6-acre study area is located near Des Moines and covers sections in Townships 22N and 23N. The assessment found no archaeological sites, isolates, or traditional cultural properties within the project area.
    TagsDes Moines, Environmental Review, Historic Preservation, King County, Port Of SeattleFolderGrid
  • Wsp007.01 draft culturalresources desktopstudy july 2, 2025 pdf
    2025-07-02

    Draft Cultural Resources Assessment for the Port Of Seattle Industrial Wastewater Treatment Plant Project, King County, Washington

    This July 2025 draft cultural resources assessment, prepared by Stell for WSP USA and the Port of Seattle, evaluates potential cultural and archaeological impacts associated with a proposed Industrial Wastewater Treatment Plant project in King County, Washington. The 10.6-acre study area is located near Des Moines and covers sections in Townships 22N and 23N. The assessment found no archaeological sites, isolates, or traditional cultural properties within the project area.
    TagsDes Moines, Environmental Review, Historic Preservation, King County, Port Of SeattleFolderGrid

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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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