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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.
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TagThird Runway(1067)

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  • 2001-10-11

    EXH AR006454: Second Declaration of Dr. Patrick Lucia in Support of ACC’s Motion for Stay (PCHB No. 01-133, No. 01-160)

    Second declaration of Dr. Patrick Lucia filed by Airport Communities Coalition (ACC) in support of motion for stay before the Pollution Control Hearings Board (PCHB), case nos. 01-133 and 01-160, opposing Section 401 Certification No. 1996-4-02325 (Amended-1) and CZMA concurrency statement issued by Washington Department of Ecology for Port Of Seattle Third Runway embankment at
    TagsACC, Airport Communities Coalition, Ecology, Pollution Control Hearings Board, Third RunwayFolderBox 03
  • 2001-10-10

    EXH AR006410: Declaration of Andrea Grad in Support of ACC’s Opposition to Ecology’s Motion to Strike Attorney-Client Privileged Documents

    Declaration by Andrea Grad, paralegal at Helsell Fetterman LLP, filed in PCHB Case Nos. 01-133 and 01-160 before the Pollution Control Hearings Board for the State of Washington. Grad attests to her role submitting public disclosure requests to the Washington State Department of Ecology (Northwest Regional Office, Ann Kenny, Sally Perkins) regarding Port of Seattle’s
    TagsACC, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 03
  • 2001-10-10

    EXH 356: Decl. Dr. Peter Willing Support ACC Sur-Reply Motion Stay

    In this 2001 declaration filed before Washington State's Pollution Control Hearings Board, Dr. Peter Willing challenges the Port of Seattle's commitment to improving stormwater management at Sea-Tac Airport. He argues that the Port's pledge to retrofit its stormwater system 'to the extent practicable' is vague, undefined, and falls short of required water quality standards. Dr. Willing also contends that the four best management practices listed in the Port's Stormwater Master Plan are largely inadequate, as most do not go beyond basic King County water quality requirements.
    TagsACC, Airport Communities Coalition, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Third Runway, Water QualityFolderBox 09
  • 2001-10-09

    EXH AR006616: Second Declaration of C. Linn Gould Opposing ACC’s Motion for Stay — PCHB No. 01-133

    Second Declaration of C. Linn Gould (Risk Assessor, soil scientist, BA geology, MS soil science) filed on behalf of Port Of Seattle opposing Airport Communities Coalition (ACC) Motion for Stay in PCHB No. 01-133. Gould rebuts ACC’s alleged ‘errors’ in the 401 Certification fill criteria for the Third Runway embankment, addressing MTCA Method A cleanup
    TagsACC, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 03
  • 2001-10-09

    EXH AR006651: Ecology’s Sur-Reply to ACC’s Motion for Stay — Amended 401 Certification, PCHB No. 01-133 / 01-160

    Department of Ecology sur-reply brief filed before the Pollution Control Hearings Board (PCHB No. 01-133, PCHB No. 01-160) opposing ACC’s motion for a stay of the Amended 401 Certification for the Third Runway embankment project at Sea-Tac Airport. Ecology argues the Amended 401 Certification does not lessen water quality protections under Condition E (acceptable fill
    TagsACC, Ecology, Pollution Control Hearings Board, Third Runway, Water QualityFolderBox 03
  • 2001-10-09

    EXH AR006548: Second Declaration of James C. Kelley, Ph.D. — ACC v. Ecology and Port Of Seattle, PCHB No. 01-133 / 01-160

    Second Declaration of James C. Kelley, Ph.D., professional ecologist with Parametrix, Inc., filed in Pollution Control Hearings Board (PCHB) cases No. 01-133 and No. 01-160, Airport Communities Coalition (ACC) v. Department of Ecology and Port Of Seattle. Kelley addresses §401 Certification Condition D1g requiring bi-monthly wetland monitoring downslope of the Third Runway embankment fill at
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 03
  • 2001-10-09

    EXH AR006567: Declaration of Roger Pearce — §401 Water Quality Certification for STIA Third Runway

    Declaration by Roger Pearce, attorney at Foster Pepper & Shefelman PLLC representing Port Of Seattle, filed in Pollution Control Hearings Board case No. 01-160, Airport Communities Coalition v. Department of Ecology and Port Of Seattle. Attaches Exhibit A: Washington Department of Ecology §401 Water Quality Certification (Order No. 1996-4-02325 Amended-1) issued September 21, 2001, for
    TagsACC, Airport Communities Coalition, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 03
  • 2001-10-08

    EXH 454: Declaration Dr. Patrick Lucia Support ACC Motion Stay Section 401 Cert No. 1996-4-02325

    This 2001 declaration from civil and environmental engineer Dr. Patrick Lucia, filed with Washington's Pollution Control Hearings Board, supports the Airport Communities Coalition's motion to halt construction of a proposed Third Runway at Seattle-Tacoma International Airport. Dr. Lucia, a principal with GeoSyntec Consultants, outlines his review of geotechnical and seismic concerns related to the runway's embankment fill and MSE retaining walls. The declaration references multiple technical letters submitted to the Washington State Department of Ecology and the U.S. Army Corps of Engineers raising safety and environmental questions about the project.
    TagsACC, Airport Communities Coalition, Mechanically Stabilized Earth, Pollution Control Hearings Board, Third RunwayFolderBox 09
  • 2001-10-08

    PCHB Doc 6948: Declaration of Stephen L. M. Hockaday in Support of ACC’s Motion for Stay

    Declaration by Stephen L. M. Hockaday, Professor of Civil and Environmental Engineering at Cal Poly San Luis Obispo and expert in airport/airspace planning, filed in support of Airport Communities Coalition (ACC) Motion for Stay in PCHB Case Nos. 01-133 and 01-160. Opposes Port Of Seattle construction of Third Runway at Sea-Tac Airport pending resolution of
    TagsACC, PCHB, Pollution Control Hearings Board, Port Of Seattle, Stephen Hockaday, Third RunwayFolderBox 04
  • 2001-10-08

    EXH AR007026: Joint Declaration of State Legislators Supporting ACC Stay Request for Sea-Tac Third Runway Section 401 Certification

    Joint declaration filed October 8, 2001 in PCHB No. 01-133 and No. 01-160 by nine Washington State legislators — Senator Julia Patterson (33rd District), Senator Dow Constantine (34th District), Senator Tracey Eide (30th District), Representatives Shay Schual-Berke, Karen Keiser, Joe McDermott, Erik Poulsen, Mark Miloscia, and Maryann Mitchell — opposing Port Of Seattle’s claim of
    TagsACC, Airport Communities Coalition, Ecology, Pollution Control Hearings Board, Sea-Tac Airport, Third RunwayFolderBox 04

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
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    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
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    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

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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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