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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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  • 2024-09-07

    Aircraft On Approach Over Undeveloped Scrubland Near Airport

    A commercial aircraft is visible on final approach in the hazy sky above an overgrown, undeveloped parcel with gravel ground cover and scattered shrubs and trees. The proximity of the low-flying aircraft and the disturbed, vacant land character are consistent with property in the flight path corridor near a major airport.
    Tagsaircraft, Des Moines, Land, Sea-Tac Airport
  • 2023-11-07

    Port Of Seattle 2021 Land Cover Classifications Map — Sea-Tac Airport Aviation Properties

    Figure E-1 from a Port of Seattle document depicting 2021 land cover classifications for Port-owned aviation properties at Seattle-Tacoma International Airport (SEA) and an Auburn Property inset. Land cover categories include forest, grass, shrub, water, developed/impervious surfaces, and buildings, based on 2021 King County aerial imagery and USGS National Land Cover Database 2019.
    TagsKing County, Land, Map, Port Of Seattle, Sea-Tac Airport
  • 2023-11-01

    Draft final land stewardship plan

    The Port of Seattle's Draft Final Land Stewardship Plan (November 2023) outlines a framework for managing and improving the natural lands surrounding Seattle-Tacoma International Airport (SEA), including ecological assessments, tree canopy policies, and habitat stewardship recommendations. The plan identifies management units across Port-owned properties, evaluates their ecological conditions, and prioritizes conservation and restoration actions. It also considers equity and community access, aiming to balance airport operational needs with environmental sustainability goals.
    TagsAnchor QEA, Environment, Land, Port Of Seattle, Sea-Tac Airport
  • 2023-11-01

    Final Land Stewardship Plan

    The Port of Seattle's Final Land Stewardship Plan (November 2023) outlines a framework for managing and improving the natural lands surrounding Seattle-Tacoma International Airport (SEA), covering ecological inventory, land use assessment, and stewardship recommendations across defined management units. The plan establishes priorities for habitat preservation, tree canopy protection, and community equity considerations in relation to airport operations. It was developed collaboratively by Port of Seattle staff across aviation, seaport, and real estate divisions, along with environmental consulting firm Anchor QEA, LLC.
    TagsAnchor QEA, Environment, Land, Port Of Seattle, Sea-Tac Airport
  • 2001-06-22

    Aerial View of Earthwork and Grading Operations Near Sea-Tac Airport Runway

    Aerial photograph showing large-scale earthwork and grading operations adjacent to what appears to be an airport runway (visible at top). The scene includes rectangular water/sedimentation basins at lower left, heavy equipment, disturbed soil, and surrounding residential and forested areas consistent with airport expansion or noise mitigation land acquisition activity.
    TagsAirport Expansion, Construction, Land, Sea-Tac Airport
  • 2001-06-22

    Aerial View of Land Clearing and Grading Operations Near Highway

    Aerial photograph showing active land clearing and grading operations adjacent to a multi-lane highway (visible at right), with a commercial building and parking lot visible in the upper center. The site shows exposed soil, construction equipment, dirt access roads, and surrounding forested areas consistent with pre-development site preparation, potentially related to airport noise buffer land acquisition or compatible land use development.
    TagsAirport Expansion, Construction, Land, Land Use, Sea-Tac Airport, SR509
  • 2001-06-22

    Aerial View of Cleared Parcel Near Suburban Area with Puget Sound in Background

    Aerial photograph showing a large cleared/graded parcel in the foreground with gravel or compacted earth surfaces, adjacent to vegetated open space with a small pond or retention basin. A suburban residential and commercial area is visible in the background, with what appears to be a large body of water (likely Puget Sound) on the horizon, consistent with the greater Seattle/Sea-Tac region.
    TagsLand, Puget Sound, Sea-Tac Airport
  • 1995-01-01

    EXH AR034578: Wetlands: Characteristics and Boundaries (1995) — Chapter 6, Especially Controversial Wetlands

    National Research Council publication ‘Wetlands: Characteristics and Boundaries’ (1995), Committee on Characterization of Wetlands, Water Science and Technology Board, Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources. Exhibit AR034578. Chapter 6 covers especially controversial wetlands including permafrost wetlands, riparian ecosystems, isolated and headwater wetlands, shallow wetlands, agricultural wetlands, nonagricultural altered sites,
    TagsAcademic Journals, ACC, Environment, Land, National Academies of Sciences, Pollution Control Hearings Board
  • 1991-09-01

    EXH AR034565: An Ecosystem Perspective of Riparian Zones — Focus on Links Between Land and Water

    Academic article by Stanley V. Gregory, Frederick J. Swanson, W. Arthur McKee, and Kenneth W. Cummins published in BioScience Vol. 41 No. 8 (September 1991). Presents an ecosystem perspective of riparian zones as three-dimensional interfaces between terrestrial and aquatic ecosystems, focusing on geomorphic processes, valley floor landforms (floodplains, terraces, alluvial fans, active channels), terrestrial plant
    TagsAcademic Journals, ACC, Environment, Land, Pollution Control Hearings Board, Water Quality
  • 1974-02-28

    Minutes of the special meeting of the Port Commission of the Port Of Seattle

    Minutes from February 1974 Port of Seattle Commission meetings document the adoption of Resolution No. 2516, which authorized the Port to acquire approximately 421 acres of land north and south of Sea-Tac International Airport through condemnation or negotiation. A public hearing drew significant community attendance, including residents of the Zone 3 area near the airport, who expressed support for the plan while requesting that the southern boundary be extended to S. 216th Street. The meetings also addressed related airport operational matters, including modifications to airport rules and charges.
    TagsLand, Port Of Seattle Commission, property, Resolution 2516

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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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