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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.

TagEnvironment(185)

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  • 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
  • 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
  • 2023-08-30

    Summary of Analytical Results for Groundwater: Port Of Seattle, Seattle-Tacoma International Airport, Sea-Tac, WA

    Table I summarizing analytical results for PFAS (per and polyfluoroalkyl substances) in groundwater at Sea-Tac Airport, prepared by Haley & Aldrich, Inc. in August 2023. Groundwater monitoring wells sampled include LAI-4, MW-01, MW-02, MW-03, T-111-MW-1, TF-MW-01 through TF-MW-08-D, DMC Augmentation Well, and Tyee Well, with sample dates ranging from March 2019 to April 2023. Analytes
    TagsEnvironment, PFAS, Port Of Seattle, Sea-Tac Airport, Water Quality
  • 2023-08-12

    Des Moines Creek – A holistic approach to watershed restoration

    This presentation by King County Department of Natural Resources & Parks outlines a holistic approach to restoring Des Moines Creek and its surrounding watershed, located in King County, Washington. It covers basin planning, environmental modeling, regulatory considerations, and project costs and scheduling. The project aims to address watershed health through comprehensive assessment and coordinated restoration strategies.
    TagsDes Moines Creek, Des Moines Creek Basin Plan, Environment, King County, Presentation
  • ERMA Sea-Tac Salmon Streams

    A screenshot from NOAA's Environmental Response Management Application (ERMA) Pacific Northwest interface, showing a Google-based map centered on the Seattle-Tacoma International Airport (SeaTac) area at zoom level 12, scale 1:108K, at coordinates 47.44792°N, 122.36141°W. Surrounding communities visible include Burien, Tukwila, Renton, Normandy Park, and Des Moines, with overlaid environmental or response-related boundary layers in multiple colors.
    TagsEnvironment, ERMA, Map, Salmon, Sea-Tac Airport
  • UW study shows Seattle’s historically redlined communities have worse air quality

    By Isabella Breda  Seattle Times staff reporter As Seattleites awoke to a hazy concoction of wildfire and Fourth of July firework smoke Wednesday morning, a new study dropped, revealing that some neighborhoods in the city are regularly subject to worse air pollution, reflective of historic racist policies. Those neighborhoods, according to research published Wednesday from the University of Washington,
    CategoriesFrom The Web TagsEnvironment, Seattle Times, UFP, UWDEOHS
  • UW study shows Seattle’s historically redlined communities have worse air quality

    Haze from wildfire and Fourth of July firework smoke sets in Wednesday on the Seattle skyline. (Luke Johnson / The Seattle Times) By  Isabella Breda  Seattle Times staff reporter As Seattleites awoke to a hazy concoction of wildfire and Fourth of July firework smoke Wednesday morning, a new study dropped, revealing that some neighborhoods in the city
    CategoriesFrom The Web TagsEnvironment, Seattle Times
  • Environmentalists and industry weigh in on how to decarbonize aviation

    By  Dominic Gates  Seattle Times aerospace reporter Under intense political pressure, the aviation industry has set itself a daunting challenge to decarbonize flying by 2050 and laid out a road map to get there through technological innovation. For environmentalists, especially in Europe, that prolonged switch to clean energy technology is not good enough. “It takes
    CategoriesFrom The Web TagsBoeing, Climate, Commercial Aviation, Environment, Jay Inslee, Seattle Times
  • 2023-05-08

    Long-term exposure to ultrafine particles and natural and cause-specific mortality

    This study examined whether long-term exposure to ultrafine air particles (UFP) is linked to higher death rates among 10.8 million Dutch adults followed from 2013 to 2019. Researchers found that higher UFP exposure was significantly associated with increased risk of natural cause, lung cancer, and respiratory disease mortality, even after accounting for other air pollutants like nitrogen dioxide and fine particles. The findings suggest UFP pose health risks independent of other regulated air pollutants, though this research is unrelated to airport noise policy.
    TagsAcademic Journals, Atmospheric Science, Environment, Health, UFP
  • California becomes the first state to adopt emission rules for trains

    April 27, 2023 SACRAMENTO, Calif. — California approved Thursday a first-in-the-nation, ambitious rule limiting rail pollution to aggressively cut greenhouse gas emissions in the state’s latest move to establish itself as a global leader in the fight against climate change. The rule will ban locomotive engines more than 23 years old by 2030 and increase
    CategoriesFrom The Web TagsAssociated Press, California, Environment, pollution, Railroads, Regulations

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
    Zoom (Virtual Meeting)
    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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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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