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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.

TagSustainable Airport Master Plan(280)

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  • 2024-02-01

    Seattle-Tacoma International Airport SAMP Near Term Projects: Wetlands and Streams Report — Appendix A Background Information

    This February 2024 technical report from the Port of Seattle documents the wetlands and streams located at and around Seattle-Tacoma International Airport as part of the Sustainable Airport Master Plan (SAMP). It includes mapped locations of wetlands surveyed across multiple years (2006, 2014, and 2017) along with stream corridors such as Miller Creek, Des Moines Creek, and Walker Creek. Field hydrology monitoring data from 2020 is also provided, recording groundwater depth and soil saturation measurements to assess wetland conditions across the airport property.
    TagsEnvironmental Impact Statement, Miller Creek, NEPA, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master Plan
  • The UnSustainable Airport Master Plan

    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 <em>hear</em>, but you’re probably not aware of what it all means. Here’s what you need to know.
    CategoriesExplainers TagsSAMP, Sustainable Airport Master Plan
  • 2024-01-01

    Hazardous Materials, Solid Waste, and Pollution Prevention Technical Report: Appendix F — Hazardous Materials and Solid Waste

    This technical report, prepared by Landrum & Brown for the Port of Seattle in January 2024, covers hazardous materials, solid waste, and pollution prevention as part of the Sustainable Airport Master Plan's near-term projects at Seattle-Tacoma International Airport. It includes assessments of contaminated fuel farm sites, regulated building materials such as asbestos and lead in airport structures, and environmental investigation reports for fueling sites. Supporting attachments document findings from agencies like Washington State Ecology and surveys of specific airport buildings managed by tenants including United Airlines and Swissport.
    TagsEcology, Landrum & Brown, NEPA, Port Of Seattle, SAMP, Sea-Tac Airport, Sustainable Airport Master Plan
  • 2024-01-01

    Appendix F: Hazardous Materials, Solid Waste, and Pollution Prevention Technical Report: Sustainable Airport Master Plan Near-Term Projects

    This technical report, prepared by Landrum & Brown for the Port of Seattle in January 2024, assesses hazardous materials, solid waste, and pollution prevention concerns related to near-term construction projects under the Sustainable Airport Master Plan at Seattle-Tacoma International Airport. It includes investigations of contaminated fuel farm sites, environmental baseline studies, and regulated building materials surveys (such as asbestos and lead) for several airport facilities slated for redevelopment. The report compiles findings and regulatory correspondence from Washington State Department of Ecology to guide safe handling and cleanup of hazardous materials during planned airport improvements.
    TagsEcology, Landrum & Brown, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master Plan
  • Appendix f hazardous materials and solid waste 2 pdf
    2024-01-01

    Hazardous Materials, Solid Waste, and Pollution Prevention Technical Report: Sustainable Airport Master Plan Near-Term Projects

    This technical report, prepared by Landrum & Brown for the Port of Seattle in January 2024, assesses hazardous materials, solid waste, and pollution prevention concerns related to near-term construction projects under the Sustainable Airport Master Plan at Seattle-Tacoma International Airport. It includes investigations of contaminated fuel farm sites, environmental baseline studies, and regulated building materials surveys (such as asbestos and lead) for several airport facilities slated for redevelopment. The report compiles findings and regulatory correspondence from Washington State Department of Ecology to guide safe handling and cleanup of hazardous materials during planned airport improvements.
    TagsEcology, Landrum & Brown, Port Of Seattle, SAMP, Sea-Tac Airport, SEPA, Sustainable Airport Master Plan
  • 2024-01-01

    Sustainable Airport Master Plan Near-Term Projects: Land Use Technical Report

    This Land Use Technical Report, prepared by Landrum & Brown for the Port of Seattle in January 2024, examines how near-term construction projects outlined in the Seattle-Tacoma International Airport Sustainable Airport Master Plan align with existing and planned land use regulations in surrounding communities. The report reviews local plans from cities including SeaTac, Des Moines, Burien, and Tukwila, as well as a 2018 Interlocal Agreement between the Port and the City of SeaTac, to assess potential land use impacts of the proposed airport expansion alternatives. It concludes by evaluating the consistency of the proposed action and a hybrid terminal option with applicable local and regional planning policies.
    TagsInterlocal Agreement, Land Use, Landrum & Brown, NEPA, Port Of Seattle, SAMP, Sustainable Airport Master Plan
  • 2024-01-01

    Appendix H: Land Use Technical Report

    This Land Use Technical Report, prepared for the Port of Seattle's Sustainable Airport Master Plan Near-Term Projects, examines how proposed improvements at Seattle-Tacoma International Airport align with land use plans and regulations in surrounding communities including SeaTac, Des Moines, Burien, and Tukwila. It reviews existing and planned land uses, relevant local and regional planning documents, and assesses potential land use impacts under three alternatives: No Action, Proposed Action, and a Hybrid Terminal Option. The report was originally prepared in January 2024 by Landrum & Brown and later updated in April 2026 by Parametrix for the SEPA Environmental Impact Statement.
    TagsEnvironmental Impact Statement, Land Use, Port Of Seattle, Puget Sound Regional Council, SAMP, SEPA, Sustainable Airport Master Plan
  • 2024-01-01

    Sustainable Airport Master Plan Near-Term Projects: Land Use Technical Report

    This Land Use Technical Report, prepared by Landrum & Brown for the Port of Seattle in January 2024, examines how near-term construction projects outlined in the Seattle-Tacoma International Airport Sustainable Airport Master Plan align with existing and planned land use regulations in surrounding communities. The report reviews local plans from cities including SeaTac, Des Moines, Burien, and Tukwila, as well as a 2018 Interlocal Agreement between the Port and the City of SeaTac, to assess potential land use impacts of the proposed airport expansion alternatives. It concludes by evaluating the consistency of the proposed action and a hybrid terminal option with applicable local and regional planning policies.
    TagsInterlocal Agreement, Land Use, Landrum & Brown, NEPA, Port Of Seattle, SAMP, Sustainable Airport Master Plan
  • Appendix h land use tech report pdf
    2024-01-01

    Sustainable Airport Master Plan Near-Term Projects: Land Use Technical Report

    This Land Use Technical Report, prepared for the Port of Seattle's Sustainable Airport Master Plan Near-Term Projects, examines how proposed improvements at Seattle-Tacoma International Airport align with land use plans and regulations in surrounding communities including SeaTac, Des Moines, Burien, and Tukwila. It reviews existing and planned land uses, relevant local and regional planning documents, and assesses potential land use impacts under three alternatives: No Action, Proposed Action, and a Hybrid Terminal Option. The report was originally prepared in January 2024 by Landrum & Brown and later updated in April 2026 by Parametrix for the SEPA Environmental Impact Statement.
    TagsEnvironmental Impact Statement, Land Use, Port Of Seattle, Puget Sound Regional Council, SAMP, SEPA, Sustainable Airport Master Plan
  • 2024-01-01

    Appendix H: Land Use Technical Report — Sustainable Airport Master Plan Near-Term Projects

    This January 2024 Land Use Technical Report, prepared by Landrum & Brown for the Port of Seattle, examines how near-term construction projects at Seattle-Tacoma International Airport align with local and regional land use plans. It reviews existing and planned land uses in surrounding cities—including SeaTac, Des Moines, Burien, and Tukwila—and evaluates the potential land use impacts of proposed action alternatives. The report draws on key planning documents such as a 2018 Interlocal Agreement and the Puget Sound Regional Council's Vision 2050 to assess consistency with community goals.
    TagsLand Use, Landrum & Brown, NEPA, Port Of Seattle, Puget Sound Regional Council, SAMP, Sustainable Airport Master Plan

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  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
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    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
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    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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