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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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  • Stcp chapter 541 pg 3 maximum extent of the vashon ice sheet

    Maximum Extent of the Vashon Ice Sheet over Western Washington

    Map showing the maximum extent of the Vashon glacial ice sheet over western Washington state, including the Puget Lobe, with labeled locations including Seattle, Tacoma, Olympia, Portland, and surrounding peaks. Caption notes the ice was approximately 5,000 feet thick at Seattle and 2,000 feet at Tacoma; modified after E.R. Atrium, Washington State Department of Natural Resources, I.C. 47.
    TagsHistory, Map, Puget Sound, STCPFoldermaps
  • Stcp chapter 412 pg 5 per capita personal income constant 1967 dollars central puget sound region selected years 1959 1971

    Per Capita Personal Income in Constant 1967 Dollars: Central Puget Sound Region vs. United States, 1959–1971 (STCP Figure 4.1.2)

    A dual-panel chart showing per capita personal income in constant 1967 dollars for the Central Puget Sound Region compared to the United States for selected years 1959–1971. The lower bar chart expresses Puget Sound income as a percentage of the U.S. figure, peaking at 127% in 1962 and declining to 108% by 1971, labeled as figure 4.1.2.
    TagsEconomic Impacts, Puget Sound, Statistics, STCPFoldermaps
  • 2025-10-06

    PSCAA Draft Comprehensive Climate Action Plan

    Cover page of the Puget Sound Clean Air Agency's Draft Comprehensive Climate Action Plan for the Seattle-Tacoma-Bellevue Metropolitan Statistical Area (MSA), prepared on behalf of cities and counties in King, Kitsap, Pierce, and Snohomish Counties, dated October 6, 2025. The document bears the Puget Sound Clean Air Agency (CAA) logo and features a nature photograph of a sunlit river.
    TagsPuget Sound, SeattleFolderPSCAA
  • 2025-09-01

    PSRC Fiscal years 2026-2027 biennial budget and work plan: July 2025 – June 2027

    This document is the Puget Sound Regional Council's Fiscal Years 2026–2027 Biennial Budget and Work Plan, covering July 2025 through June 2027, which outlines the agency's revenues, expenditures, staffing, and regional planning priorities for the greater Seattle–Tacoma area. It includes demographic data on population, housing, and employment growth across member jurisdictions, along with financial tables and an integrated planning timeline. Note that this budget document does not address Sea-Tac Airport noise policy; researchers seeking noise-related planning materials should consult dedicated airport or environmental planning resources.
    TagsBudget, PSRC, Puget Sound, Puget Sound Regional Council, work planFolderPuget Sound Regional Council
  • 2025-05-06

    Substitute Senate Bill 5195: Capital budget act

    Washington State Senate Bill 5195 is a capital budget act for the 2025-2027 biennium, appropriating funds for various state construction and infrastructure projects. It includes allocations for projects such as stadium security and field improvements to support Seattle's hosting of the 2026 FIFA World Cup, early learning facility upgrades, and other general government building needs. The bill covers spending from the effective date of the act through June 30, 2027, drawing from several state funds.
    TagsBudget, Legislation, Puget Sound, state legislature, Washington State LegislatureFolderState
  • 2024-06-25

    SR 509 Completion Project: Des Moines Historical Society Presentation

    A June 2024 WSDOT presentation to the Des Moines Historical Society outlines the SR 509 Completion Project, part of the broader Puget Sound Gateway Program alongside the SR 167 Completion Project in Pierce County. The project aims to improve freight and passenger connections between the Port of Seattle, Sea-Tac Airport, and key regional distribution centers in King County. The presentation covers the project's history and two construction stages, with WSDOT emphasizing efficiencies gained by managing both highway projects under a single program.
    TagsDes Moines, Gateway Project, Puget Sound, SR509, WSDOTFolderWashington State Department of Transportation
  • 2023-08-09

    District service area, RWSA and adjacent water utilities – Highline Water District water system plan

    This map from Highline Water District's Water System Plan shows the district's service area and surrounding water utilities in the communities south of Seattle, including areas near Sea-Tac Airport. It identifies neighboring providers such as the Port of Seattle, KCWD 20, KCWD 49, KCWD 54, KCWD 125, Tukwila, Kent, and Lakehaven Utility District, along with key landmarks like Angle Lake, Star Lake, and Lake Fenwick. The map delineates the Regional Water Service Area (RWSA) boundary and current service areas relative to major roads and Interstate 5.
    TagsHighline Water District, King County, Map, Puget SoundFolderEnvironment
  • 2023-06-05

    2023-25 Biennium Enacted Budget – Operating

    This document outlines the Washington State Department of Ecology's 2023-25 Biennium Enacted Operating Budget, totaling approximately $862.6 million with 2,136.5 full-time employees. It details funding changes across priority areas including climate impact reduction, toxic threat prevention, and water protection, with notable investments in Clean Energy Permitting, Climate Commitment Act implementation, and water quality programs. The budget reflects a net increase of roughly $157.8 million over the carryforward base budget through a combination of maintenance level adjustments and new policy-level initiatives.
    TagsClimate Commitment Act, Ecology, Model Toxics Control Act, Puget Sound, Washington State LegislatureFolderEcology
  • 2023-04-26

    Fred Felleman speaking at Quiet Skies Puget Sound event

    Fred Felleman, identified by on-screen caption, is speaking and gesturing at what appears to be an outdoor coastal or waterfront location. He is wearing glasses and a Columbia-brand fleece jacket, with other individuals visible in the background.
    TagsFred Felleman, Puget Sound, QSPS, Quiet Skies Puget SoundFolderQuiet Skies Puget Sound
  • 2022-12-14

    Puget Sound Regional Council

    The Puget Sound Regional Council (PSRC) is a metropolitan planning organization founded in 1956 that oversees transportation planning, economic development, and growth management across King, Kitsap, Pierce, and Snohomish counties in the greater Seattle area. It serves as a collaborative forum for cities, counties, transit agencies, port districts, and tribal governments to address regional infrastructure and land-use issues. The PSRC maintains a regional Transportation Improvement Program and develops long-range strategies, such as VISION 2040, to guide the area's growth as its population approaches 5 million.
    TagsEconomic Development Division, PSRC, Puget Sound, Puget Sound Regional Council, transportationFolderPuget Sound Regional Council

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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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