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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 unk pg 9 north reinforcement area program application

    STCP North Reinforcement Area Program Application Map (Page 9)

    This planning map, document number POS 1056 (page 9, section 6.6.5), was produced under the Sea-Tac Communities Plan sponsored by the Port of Seattle and King County. It depicts the North Reinforcement Area program application, showing grid cells classified by noise-mitigation programs—including acquisition, purchase guarantee, cost-sharing insulation, and limited cost-sharing insulation—across neighborhoods near Seattle-Tacoma International Airport, with landmarks such as Cedarhurst Elementary, Boulevard Park Elementary, Hilltop Elementary, Glacier High, and Sunset Junior High identified.
    TagsMap, Noise Mitigation, Sea-Tac Airport, Sea-Tac Communities Plan, STCPFolderChapter 6.6.5
  • Stcp chapter unk pg 8 sea tac communities plan north reinforcement area program application 2

    STCP North Reinforcement Area Program Application Map — Sea-Tac Communities Plan

    A planning map (page 8, document section 6.6.5) from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, depicting the North Reinforcement Area program application around Seattle-Tacoma International Airport. The map shows land-use categories including current airport lands, acquisition zones, cost-sharing insulation areas, conversion areas (West and North), streams and ponds, and nearby landmarks such as Highline High School, Sunny Terrace Elementary, Sunnydale Elementary, and Riverton Heights Elementary, with a grid cell reference system and scale bar.
    TagsMap, Noise Mitigation, Sea-Tac Airport, Sea-Tac Communities Plan, STCPFolderChapter 6.6.5
  • Stcp chapter unk pg 8 industrial land use

    Sea-Tac Communities Plan Industrial Land Use Map

    A planning document titled 'Sea-Tac Communities Plan' showing an industrial land use map of the Sea-Tac area, sponsored by the Port of Seattle and King County (document reference 5.5.1). The map highlights industrial land use zones in black, with a dashed boundary indicating a specific study or airport area, and is catalogued as POS 20895.
    TagsKing County, Land Use, Port Of Seattle, Sea-Tac Communities Plan, STCPFoldermaps
  • Stcp chapter unk pg 8 industrial land use 2

    Sea-Tac Communities Plan – Industrial Land Use Map (POS 733)

    A land use planning map labeled 'Sea-Tac Communities Plan – Industrial Land Use, POS 733,' sponsored by the Port of Seattle and King County (document reference 5.5.1). The map depicts industrial land use zones in the Sea-Tac area, with numbered zones and shaded areas indicating industrial designations, oriented with a north arrow and scale bar.
    TagsKing County, Land Use, Map, Sea-Tac Communities Plan, STCPFoldermaps
  • Stcp chapter unk pg 6 business commercial land use

    Sea-Tac Communities Plan — Business/Commercial Land Use Map (POS 731, Section 5.5.1)

    Cover page of the Sea-Tac Communities Plan document titled 'Business/Commercial Land Use,' reference number POS 731, section 5.5.1. The plan was sponsored by the Port of Seattle and King County, and features a black-and-white map depicting commercial land use zones in the Sea-Tac area.
    TagsKing County, Land Use, Port Of Seattle, Sea-Tac Communities Plan, STCPFoldermaps
  • Stcp chapter unk pg 6 arterials streets and roads

    Sea-Tac Communities Plan Map 4.2.7 — Arterials, Streets, and Roads

    A planning map labeled 'Sea-Tac Communities Plan' showing arterials, streets, and roads in the Sea-Tac area, document number POS 649, map sheet 4.2.7. The map identifies existing state arterials, county and city urban arterials (major, secondary, and collector), with visible street labels including SW Roxbury St, S 188th St, S 216th St, S 288th St, SR 518, SR 509, and US 99; sponsored by the Port of Seattle and King County.
    TagsKing County, Map, Port Of Seattle, Sea-Tac Communities Plan, STCPFoldermaps
  • Stcp chapter unk pg 4 distribution of employment central puget sound region and united states 1965 and 1972

    STCP Employment Distribution: Central Puget Sound Region and United States, 1965 and 1972

    Two bar charts (document POS 605, page 4.1.2) compare employment distribution between 1965 and 1972 for the Central Puget Sound Region (King, Kitsap, Pierce, and Snohomish Counties) and the United States. The upper chart shows agricultural vs. non-agricultural employment shares, while the lower chart breaks non-agricultural employment into non-manufacturing (60.1% to 65.9%), manufacturing (25.4% to 23.1%), and others (8.3% to 6.7%).
    TagsEconomic Impacts, Puget Sound, STCPFoldermaps
  • Stcp chapter unk pg 2 primary air trade area sea tac international airport

    Primary Air Trade Area Planning Map – Sea-Tac Airport

    A planning map labeled 'PRIMARY AIR TRADE AREA – Sea-Tac International Airport' (document reference 4.3.1, page 2) delineating the primary air trade catchment zone in tan/orange shading across Snohomish, King, and Pierce counties, with Kitsap County partially included. Major highways (I-5, I-90, US 101, SR 20, SR 104, SR 3) and cities (Seattle, Tacoma, Everett) are marked, along with national parks (Olympic NP, Mt. Rainier NP, N. Cascades NP) shown as excluded areas.
    TagsMap, Puget Sound, Sea-Tac Airport, STCPFoldermaps
  • Stcp chapter unk pg 2 air quality measurement sites near sea tac

    STCP Air Quality Measurement Sites Near Sea-Tac Airport

    A map from the Sea-Tac Communities Plan (document reference POS 690, page 5.1.0) showing seven air quality measurement sites near Seattle-Tacoma International Airport. Sites 1–4 are ESL sites and sites 5–7 are Puget Sound Air Pollution Control Agency sites; the plan was sponsored by the Port of Seattle and King County.
    TagsAir Quality Monitors, Puget Sound Air Pollution Control Agency, Sea-Tac Airport, Sea-Tac Communities Plan, STCPFoldermaps
  • Stcp chapter unk pg 2 1 location of public housing retirement residences and convalescent nursing homes

    STCP Map: Locations of Public Housing, Retirement Residences, and Convalescent Nursing Homes in the Sea-Tac Area

    A map from the Sea-Tac Communities Plan (document reference 4.2.2), sponsored by the Port of Seattle and King County, showing numbered locations of 16 public housing, retirement, and convalescent/nursing home facilities in the Sea-Tac area, including King County Housing Authority properties such as Park Lake Homes (545 and 165 units) and private retirement communities such as Kingston Village (335 units) and Wesley Gardens/Wesley Terrace (515 units and rooms).
    TagsHousing, King County, Map, Sea-Tac Communities Plan, STCPFoldermaps

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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...]


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!

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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