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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.

Tagairport issues(12)

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  • 2002-06-03

    Legal Analysis of King County’s Role in Des Moines Beach Park Conveyor Belt Proposal

    ★
    Legal counsel James L. Brewer analyzes King County’s jurisdictional authority regarding a proposed fill material conveyor belt operation at Des Moines Beach Park. The memo examines property interests, covenants requiring park use only, and concludes the proposed 30-month project would be inconsistent with park purposes due to significant disruption.
    CategoriesKey Documents, Litigation TagsAirport Communities Coalition, Airport Expansion, airport issues, Conveyor, King County CouncilFolderConveyor
  • 1996-03-27

    Final Decision on Noise Issues – Expert Arbitration Panel’s Review of Sea-Tac International Airport

    ★
    In March 1996, an Expert Arbitration Panel reviewed whether the Port of Seattle had met noise reduction requirements set by the Puget Sound Regional Council as a condition for approving a third runway at Sea-Tac International Airport. A majority of the Panel concluded that, despite the Port's extensive noise abatement programs, it had not demonstrated a sufficient reduction in real, on-the-ground noise impacts to satisfy Resolution A-93-03. This decision left the noise condition as the sole remaining hurdle for authorizing the third runway's construction.
    CategoriesHistory, Key Documents, Litigation TagsAircraft Maintenance, Airport Communities Coalition, Airport Expansion, airport issues, Airport Noise Law, Port Of Seattle, PSRCFolderPuget Sound Regional Council
  • 1985-01-25

    Resolution No. 2943 – Updated Noise Remedy Program

    ★ 32
    Resolution No. 2943 was adopted by the Port Commission of the Port of Seattle to update the Noise Remedy Program for Sea-Tac International Airport, replacing the earlier noise remedy element from the 1976 Sea-Tac Communities Plan. The resolution authorizes property acquisition in high-noise areas, implementation of nine noise abatement measures, and a Demonstration Project (budgeted at up to $1 million) to test alternatives to acquisition such as noise insulation and transaction assistance for affected homeowners. Priority for remedies is given based on noise intensity, length of residency, and financial hardship, with annual progress reports required to guide ongoing program evaluation.
    CategoriesKey Documents, Legislation TagsAirport Impacted Communities Act, airport issues, Airport Layout Plans, Airport Noise Law, Noise Remedy UpdateFolderNoise Remedy Update
  • 1983-11-29

    Jackson International Airport Noise Remedy Update Community Attitude Survey

    ★
    In November 1983, the Port of Seattle sent this letter and attached survey summary to attendees of neighborhood workshops held near Jackson International Airport (Sea-Tac), informing them of community attitude surveys conducted by McClure Research Company on aircraft noise concerns. The surveys gathered resident opinions on potential noise remedy programs—including purchase guarantees, noise insulation cost-sharing, and avigation easements—to help planners assess program feasibility and likely participation rates. Results showed that workshop attendees' concerns closely mirrored those of the broader affected community living in areas with noise levels of 70 Ldn and above.
    CategoriesHistory, Key Documents Tagsairport issues, Noise Mitigation, Noise Remedy Update, Port Of SeattleFolderNoise Remedy Update
  • 2026-02-02

    2026 City of Des Moines City Council State Legislative Priorities

    Des Moines City Council’s legislative priorities for the 2026 state legislative session, covering public safety funding, airport impact mitigation, historic preservation, ferry development, and local government financial resources. The city is not requesting earmarks for public works projects due to the challenging state budget.
    Tags2026 legislative session, airport issues, City Of Des Moines, Highline Forum, Port Of SeattleFolderHighline Forum 2026
  • 2026-01-06

    Sea-Tac Communities Plan program idea weighting introduction

    This document outlines a planning framework for evaluating policy ideas related to Sea-Tac Airport and surrounding communities. Each idea is scored on two factors — technical feasibility (Possibility of Application) and community acceptance (Acceptance Factor) — which are multiplied together to produce an Index of Implementation Probability ranging from 0 to 9. Ideas scoring 0 are eliminated from consideration, while higher-scoring ideas advance as viable planning alternatives to be combined and refined in a subsequent phase of the planning process.
    TagsAdvisory Committees, Airport Committees, airport issues, Sea-Tac AirportFoldermisc
  • 2025-02-14

    Washington State Air Pollution Map – Airport Communities

    A map of Washington State identifying 16 communities with elevated cumulative criteria air pollution levels, including locations such as Spokane, Tacoma, Seattle, Yakima Valley, and Vancouver. The map uses a shading gradient to indicate highest to lowest pollution levels, with numbered red markers pinpointing each named community.
    CategoriesExplainers, Resources TagsAir Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, airport issues, Airports, Aviation EmissionsFolderEcology
  • 2025-01-01

    2025 City of Des Moines City Council State Legislative Priorities

    The City of Des Moines, Washington outlined its 2025 state legislative priorities, which include several airport-related concerns such as establishing a permanent air quality monitor, funding an independent study on the impacts of the Seattle-Tacoma International Airport Master Plan (SAMP), and expanding sound insulation repair and replacement programs. The city also seeks enhancements to SB5955 and RCW53 to allow unconstrained funding for mitigating public health impacts from airport operations. Additional priorities include public safety funding, property tax reform, replacement of the Redondo Fishing Pier, historic preservation, and development of electric passenger-only ferry routes connecting Des Moines.
    Tagsairport issues, City Of Des Moines, ferry development, Highline Forum, legislative priorities, SAMPFolderHighline Forum 2025
  • 2022-08-19

    Waterfront Community with Aviation Infrastructure

    Image shows a waterfront community with residential buildings, beach area, and forested hills in the background. Several people are visible on the beach, and the scene appears to be in the Pacific Northwest region near what could be an airport-impacted community.
    Tagsaircraft, airport issues, Des Moines, Sea-Tac AirportFolderDes Moines
  • 2003-04-18

    The Effects of Aircraft Noise and Road Traffic Noise on Reading Comprehension and Attention: The Ranch Study

    A European study called RANCH examined how aircraft and road traffic noise affects reading comprehension and attention in nearly 3,000 children aged 9-10 in the UK, Netherlands, and Spain. Results showed that higher aircraft noise exposure was significantly linked to poorer reading comprehension, while road traffic noise showed no such effect; neither type of noise impacted sustained attention. The findings suggest aircraft noise poses a greater risk to children's cognitive development than road traffic noise, with implications for school siting and noise exposure policies near airports.
    CategoriesFrom The Web TagsAcademic Journals, aircraft, airport issues, Airport Noise Report, Aviation Noise & Emissions SymposiumFolderStudies

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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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