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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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  • 2002-10-21

    PCHB Doc 016687: ACC v. DOE/PORT — Direct Testimony of Swenson, Stubblefield, Weitkamp, and Wisdom, Volume 3 of 3

    Direct testimony binder (Volume 3 of 3) filed in ACC v. DOE/PORT before the Pollution Control Hearings Board for the State of Washington, PCHB case No. 01-133. Witnesses include Steven J. Swenson, William A. Stubblefield, Donald E. Weitkamp, and Dr. Charles Wisdom. Administrative Record number AR 016687, Binder 10. Filed by Airport Communities Coalition (ACC)
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR016629: Pre-Filed Direct Testimony of Keith Smith — PCHB 01-160, ACC and CASE v. Ecology and Port Of Seattle

    Pre-filed direct testimony of Keith Smith submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. Department of Ecology and Port Of Seattle. Testimony addresses stormwater sampling under the Port’s NPDES permit, monitoring locations, water quality criteria violations, hardness data accuracy, deicing chemicals, IWS
    TagsACC, Deicing, NPDES, PCHB, Pollution Control Hearings Board, Port Of Seattle, StormwaterFolderBox 07
  • 2002-10-21

    EXH AR016605: Prefiled Testimony of Dr. Michael Riley — ACC v. Ecology and Port Of Seattle, PCHB No. 01-160

    Prefiled testimony of Dr. Michael Riley, Civil Engineer, in PCHB No. 01-160, Airport Communities Coalition (ACC) v. State of Washington Department of Ecology and Port Of Seattle. Riley performed modeling analysis of fill criteria in the 401 Certification for the Third Runway embankment at Sea-Tac Airport, using conservative assumptions including maximum metal concentrations allowed by
    TagsACC, Airport Communities Coalition, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 07
  • 2002-10-21

    EXH AR016567: Prefiled Testimony of Elizabeth M. Leavitt — PCHB No. 01-160, ACC and CASE v. Ecology and Port Of Seattle

    Prefiled direct testimony of Elizabeth M. Leavitt submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. Department of Ecology and Port Of Seattle. Testimony covers Port Of Seattle’s Aviation Environmental Program, Joint Aquatic Resources Permit (JARPA), 401 Certification, Section 404 projects, Master Plan
    TagsACC, CASE, Elizabeth Leavitt, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR016419: Prefiled Direct Testimony of C. Linn Gould — ACC v. Ecology and Port Of Seattle, PCHB No. 01-160

    Prefiled direct testimony of C. Linn Gould submitted by Airport Communities Coalition (ACC) in PCHB No. 01-160 before the Pollution Control Hearings Board for the State of Washington. Testimony addresses embankment design and fill criteria for Third Runway construction at Sea-Tac Airport, flow paths through embankment fill, U.S. Fish & Wildlife Service Biological Opinion, drainage
    TagsACC, Airport Communities Coalition, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    PCHB Doc 016334: ACC v. DOE/PORT — Original Testimony, Volume 2 of 3, Binder 9

    Original testimony filed in ACC v. DOE/PORT, Pollution Control Hearings Board (PCHB) case No. PCHB 01-133, Volume 2 of 3, Binder 9, AR 016334. Witnesses include Paul S. Fendt P.E., Linn Gould, James C. Kelley Ph.D., Elizabeth M. Leavitt, Dr. Michael Riley, Keith Smith, and John J. Strunk. Document is the cover page/binder label for
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR016294: Prefiled Testimony of Charles Ellingson — Embankment Infiltration Modeling, Walker Creek and Miller Creek Fills, PCHB No. 01-160

    Prefiled testimony of Charles Ellingson submitted to the Pollution Control Hearings Board for the State of Washington in PCHB No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of Seattle. Testimony covers embankment modeling methodology using an integrated model approach combining Hydrus models
    TagsACC, Airport Communities Coalition, Citizens Against Sea-Tac Expansion, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015948: Prefiled Testimony of Michael Cheyne — ACC and CASE v. Ecology and Port Of Seattle, PCHB 01-160

    Prefiled direct testimony of Michael Cheyne submitted on behalf of Port Of Seattle in PCHB case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. Department of Ecology and Port Of Seattle, Pollution Control Hearings Board for the State of Washington. Testimony covers Sea-Tac Airport Master Plan Update process, public process
    TagsACC, CASE, Environmental Impact Statement, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015899: Prefiled Testimony of Jan L. Cassin, Ph.D. — PCHB No. 01-160, ACC and CASE v. Ecology and Port Of Seattle

    Prefiled direct testimony of Jan L. Cassin, Ph.D., submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. Department of Ecology and Port Of Seattle. Testimony addresses wetlands identification on the Vacca Farm site, mitigation plan adequacy, restoration and enhancement credit ratios, Miller Creek
    TagsACC, Airport Communities Coalition, Citizens Against Sea-Tac Expansion, Miller Creek, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015848: Prefiled Testimony of Joseph Brascher, PCHB No. 01-160, ACC and CASE v. Ecology and Port Of Seattle

    Prefiled testimony of Joseph Brascher submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of Seattle. Testimony covers low streamflow modeling at Seattle-Tacoma International Airport (STIA) using HSPF (Hydrological Simulation Program Fortran) model integrated with
    TagsACC, Miller Creek, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07

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Upcoming Events

  • Port of Seattle Regular Commission Meeting September 22, 2026
    Add to CalendarMTuesday Sep 22: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 09 22 rm packet pdf

    Order of Business 10:30 a.m. 1. Call to Order 2. Executive Session – if necessary, pursuant to RCW 42.30.110 (executive sessions are not open to the public) 12:00 p.m. – Public Session Reconvene or Call to Order and Pledge of Allegiance 3. Approval of the Agenda 4. Special Orders of the Day 4a. Presentation of

    [...]
  • Highline Forum Agenda – September 23, 2026
    Add to CalendarMWednesday Sep 23, 2:30pm - 4:30pm
    City of Des Moines, Police Services Building,
    Highline forum agenda final 23sept2026 pdf

    Highline Forum Agenda Theme: Part 150 Update and PortJobs Overview 2:30pm – Convene Meeting/Introductions Port Co-Chair, Commissioner Mohamed 2:35pm – Public Comments Audience The meeting will be held in person and virtually. Those wishing to provide public comment may: 1) Deliver public comment via email; 2) Deliver public comment via Microsoft Teams; or 3) Deliver

    [...]

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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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