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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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  • South Seattle residents blasted with late-night jet noise from improper Boeing test

    Boeing employees and family members cheer the 777X at Boeing Field in Seattle after completing its first flight on Jan. 25. On Tuesday, Boeing broke a… (Mike Siegel / The Seattle Times) More By Dominic Gates Seattle Times aerospace reporter Residents near Boeing Field, from Georgetown to the west and as far as Mercer Island
    CategoriesFrom The Web TagsBoeing, Boeing Field, Seattle Times
  • Boeing has been a steady partner in doing right by the environment

    A Boeing 777X airplane takes off at Paine Field in Everett in January. Boeing recently entered into a partnership to recycle excess composite… (AP Photo / Ted S. Warren, File) More By Tom Ranken Special to The Times A couple of years ago, the CleanTech Alliance found a Chicago-based partner that wanted to work with
    CategoriesFrom The Web TagsBoeing, Seattle Times, Tom Ranken
  • 2018-10-01

    Noise of the Future

    A 2018 Boeing presentation by Senior Manager Robert Stoker outlines the aviation industry's progress in reducing aircraft noise and fuel consumption, noting roughly a 90% reduction in noise footprint and 70% improvement in fuel efficiency since the 1950s. The document highlights Boeing's current fleet — the 737 MAX, 747-8, 787, and 777X — each delivering significant reductions in both noise footprint (ranging from 30% to 60% smaller) and fuel/CO2 emissions compared to the models they replace.
    TagsAviation Emissions, Boeing, Boeing 737 MAX, Boeing 787, NoiseFolderAviation
  • Boeing: Airport Noise and Emissions Regulations

    Introduction The purpose of this web site is to track and report airport noise and emissions restrictions and government regulations for airline customers. This information also allows us a better understanding of problems a customer airline may encounter at a particular airport and to assist them in developing possible solutions. We would like to thank
    CategoriesResources TagsBoeing
  • Boeing makes gains in year of turbulence

    By Dominic Gates Seattle Times aerospace reporter It was the best of times, it was the worst of times. It was a year of fundamental shifts within Boeing. In 2004, the leaden skies above the company’s local operations at last began to brighten. • A spectacular Navy contract worth potentially $40 billion secured the future
    CategoriesFrom The Web TagsBoeing, Commercial Aviation, Seattle Times
  • 2001-09-25

    EXH AR012945: Declaration of Alan C. Ralston in Support of Third Runway at Sea-Tac Airport

    Declaration of Alan C. Ralston, Director of Northwest State and Local Government Relations for The Boeing Company, filed in PCHB Case No. 01-133 (Airport Communities Coalition v. Department of Ecology and Port of Seattle) before the Pollution Control Hearings Board for the State of Washington. Ralston declares Boeing’s support for expeditious construction of the Third
    TagsACC, Airport Communities Coalition, Boeing, PCHB, Pollution Control Hearings Board, Third RunwayFolderBox 06
  • 2001-06-22

    Aerial View of Road Tunnel Beneath Sea-Tac Airport Runway With Boeing Facility in Background

    Aerial photograph showing a multi-lane road passing through a tunnel beneath an airport runway, with what appears to be a large aircraft manufacturing or maintenance facility visible in the upper left background bearing a partially visible logo consistent with Boeing. Construction activity, retention ponds, and utility infrastructure are visible in the surrounding undeveloped land.
    TagsAirport Expansion, Boeing, Construction, Sea-Tac AirportFolderWatershed Aerial Photos
  • 1995-06-28

    Aircraft Emissions Rates for Landing/Takeoff Cycles – A300, 757, and 737 Aircraft

    Technical report showing aircraft engine emissions data for different aircraft types (A300, 757, 737) across various operational modes including takeoff, taxi, climb, and approach phases. Contains detailed emissions measurements for CO, HC, NOx, SOx, and particulates in kg/hr/engine units.
    CategoriesResources Tags737MAX, 777, Airbus, aircraft, Aviation Emissions, Boeing, Commercial AviationFolderAviation
  • 1990-05-01

    EXH AR023534: Baseline Soil & Groundwater Quality Assessment — Seattle City Light Long-Term Lease Option

    A 1990 environmental assessment by Roy F. Weston Inc. evaluated soil and groundwater quality on an undeveloped Seattle property along the Duwamish Waterway, where Boeing was considering a 50-year lease with Seattle City Light. The study examined areas where dredged sediment from the Duwamish Waterway had been deposited in 1968 and 1985, testing for contaminants including PCBs, pentachlorophenols, PAHs, and metals. Prior sampling had found contaminant levels generally below state-regulated thresholds, and this baseline assessment was conducted to document existing conditions before any lease agreement was finalized.
    TagsACC, Boeing, Duwamish River, Pollution Control Hearings Board, soil, Water QualityFolderBox 10
  • 1981-12-08

    Memorandum of understanding: Boeing headquarters – reclassification of property

    This 1981 Memorandum of Understanding between the Port of Seattle and King County outlines terms for reclassifying approximately 30 acres of land on the west side of Sea-Tac International Airport to allow Boeing to develop a Corporate Headquarters Facility. The agreement includes provisions for the Port to lease 5 acres to King County for a neighborhood park at $1 per year, and restricts development on an adjacent 55-acre greenbelt buffer zone for at least 10 years. The document also affirms King County's zoning authority over non-airport-related land use at Sea-Tac and establishes a dispute resolution process between the two agencies.
    CategoriesCorrespondence TagsBoeing, King County, Port Of SeattleFolderProperties

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
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    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

    [...]

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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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