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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.

TagACC(1531)

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  • 2001-07-29

    EXH 446: Prelim Draft 401 Water Quality Cert Third Runway — Internal Deliberative Email

    In July 2001, Washington State Department of Ecology staff circulated a confidential preliminary draft of a Section 401 Water Quality Certification related to the construction of a third runway at Seattle-Tacoma International Airport. The draft certification, addressed to the Port of Seattle, confirmed that the proposed runway project complied with applicable provisions of the Clean Water Act and the Washington State Coastal Zone Management Program, subject to stormwater and other water quality conditions. The document was still under internal review, with sections on stormwater management and low-flow conditions pending further input before finalization.
    TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 09
  • 2001-07-29

    EXH AR017667: Ecology Draft 401 Water Quality Certification for Third Runway, STIA — Preliminary Draft and Cover Email

    Email from Ann Kenny (Washington State Department of Ecology, Northwest Regional Office) dated July 29, 2001, transmitting a preliminary draft 401 Water Quality Certification (WQC) for the Port of Seattle Third Runway construction at Seattle-Tacoma International Airport (STIA). Recipients include Raymond Hellwig, Kevin Fitzpatrick, John Drabek, Ching-Pi Wang, Erik Stockdale, Joan Marchioro (ATG), Tom Young
    TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Stormwater, Third Runway, Water QualityFolderBox 08
  • 2001-07-29

    EXH AR017796: Preliminary Draft 401 Water Quality Certification for Third Runway — Internal Email and Draft

    Email from Ann Kenny (Ecology) dated July 29, 2001, to the 401 WQC team — including Raymond Hellwig, Kevin Fitzpatrick, John Drabek, Ching-Pi Wang, Erik Stockdale, Joan Marchioro (ATG), Tom Young (ATG), Katie Walter, and Kelly Whiting, cc Jeannie Summerhays — transmitting a preliminary deliberative draft 401 Water Quality Certification (WQC) for the Third Runway
    TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 08
  • 2001-07-29

    EXH AR018242: Ecology Preliminary Draft 401 Water Quality Certification for Third Runway, Seattle-Tacoma International Airport

    Deliberative, do-not-disclose email from Ann Kenny (Washington State Department of Ecology) dated July 29, 2001, transmitting a preliminary draft 401 Water Quality Certification (WQC) for the Port of Seattle Third Runway construction at Seattle-Tacoma International Airport (STIA) in the Miller, Walker, and Des Moines Creek watersheds. The draft WQC references JARPA application dated October 25,
    TagsACC, Clean Water Act, Ecology, NPDES, Pollution Control Hearings Board, Third Runway, Water QualityFolderBox 08
  • 2001-07-27

    Exhibit 162: Record of Telecon — Kelly Whiting, Low Flow Wetland 44a

    Handwritten Record of Telecon dated 7-27-01, call from Kelly Whiting (KCI), subject: low flow — Wetland 44a. Notes state no water coming from the drain to south, cut not fill on runway, third-way model over-estimated flow; Parametrix modeled at 2200; 11,000-foot estimate; embankment will provide flow except where lined; flows feeding 44a are not meeting
    TagsACC, Handwritten Notes, Pollution Control Hearings Board, SAMP, Sea-Tac Airport, Third RunwayFolderBox 08
  • 2001-07-27

    Exhibit 2213: Mitigation for Temporary Impacts — Sea-Tac 3rd Runway, Miller Creek Additional Mitigation Draft Language

    Deliberative internal email chain dated July 27, 2001, from Erik Stockdale to Ann Kenny, forwarded to Katie Walter, transmitting draft language for additional mitigation on Miller Creek related to SeaTac 3rd Runway construction. Ecology determined that ‘temporary’ wetland impacts (up to 2.05 acres, including 1.25 acres from stormwater ponds) are permanent in nature and require
    TagsACC, Ecology, Miller Creek, Pollution Control Hearings Board, Third RunwayFolderBox 14
  • 2001-07-27

    EXH AR023735: ACC Letter to Ecology – Inadequate Review Time, STIA Third Runway Low Flow Analysis

    In this July 27, 2001 letter, attorney Kevin L. Stock of Helsell Fetterman LLP writes to the Washington Department of Ecology on behalf of the Airport Communities Coalition (ACC), protesting that the Port of Seattle submitted a massive two-volume Low Flow Analysis on July 24 while Ecology planned to issue its Clean Water Act 401 certification decision as early as August 6. The ACC argues that this timeline denies the public a meaningful opportunity to review and comment on a critical water quality report, as required by the Clean Water Act and state law. The letter urgently requests that Ecology grant the public a minimum of thirty days to comment on the Port's latest low stream flow analysis before issuing any certification decision.
    TagsACC, Airport Communities Coalition, Clean Water Act, Ecology, Pollution Control Hearings Board, Third RunwayFolderBox 10
  • 2001-07-27

    EXH AR018239: Deliberative Draft — Mitigation for Temporary Impacts, Sea-Tac 3rd Runway, Miller Creek (Wetland A17 Complex)

    Deliberative internal email chain dated July 27, 2001 from Erik Stockdale to Ann Kenny, forwarded to Katie Walter, transmitting draft language for additional mitigation on Miller Creek related to the SeaTac 3rd Runway project (AR 018239–018241). The draft document, titled ‘Mitigation for Temporary Impacts — SeaTac 3rd Runway,’ addresses Ecology’s determination that impacts characterized as
    TagsACC, Ecology, Miller Creek, Pollution Control Hearings Board, Stormwater, Third RunwayFolderBox 08
  • 2001-07-26

    EXH AR023796: Handwritten Meeting Notes — New LFM Proposal, Walker, NEPL, Storage, NRMP Impacts

    Meeting notes from 2-26-01 discuss a new CFM proposal for Walker that may significantly increase storage requirements and affect SMP design feasibility, potentially impacting NRMP. Key concerns include the need to understand design feasibility and impacts, with discussion of resizing UDP to allow CFM regulations and hydrological monitoring. Participants noted too much time was being spent on modeling rather than addressing core design and impact questions.
    TagsACC, Handwritten Notes, NEPA, PCHB, Pollution Control Hearings Board, Third RunwayFolderBox 10
  • 2001-07-25

    EXH AR029221: Port Of Seattle Letter to Ecology on Low Streamflow Analysis, Summer Low Flow Impact Offset Facility, STIA

    Letter dated July 25, 2001 from Keith R. Smith, Water Resources Manager, Port Of Seattle, to Ann E. Kenny, Washington Department of Ecology Northwest Regional Office, clarifying the Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Corrections address: embankment recharge calculation using ‘flat outwash grass’; non-contiguous groundwater contributions
    TagsACC, Ecology, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac AirportFolderBox 11

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Upcoming Events

  • 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
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    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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