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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.

TagPort Of Seattle(1845)

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  • 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 Airport
  • 2001-07-24

    EXH AR050691: Installation and Verification Results, Work Area 2 Stone Column Test Areas, Third Runway Embankment Phase 4, Sea-Tac, Washington

    Hart Crowser report (project 4978-44) prepared for HNTB documenting installation and verification results for Work Area 2 stone column test areas at the Third Runway Embankment Phase 4, SeaTac, Washington. Authored by Barry S. Chen, Ph.D., P.E. (Senior Associate Geotechnical Engineer) and John P. Laplante (Senior Staff Geotechnical Engineer). Report covers four test areas with
    TagsACC, Construction, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Third Runway
  • 2001-07-24

    EXH AR029208: 401 Permit Decision-Making, Sea-Tac Airport Third Runway — Final Meeting Notes, Low Flow Analysis

    Final meeting notes from July 24, 2001 conference call on 401 Permit Decision-Making for Sea-Tac International Airport Third Runway, Low Flow Analysis. Prepared by Kate Snider, Floyd & Snider Inc. Attendees included Ann Kenny (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt (Parametrix), Joe Brascher (Aquaterra). Discusses Port of
    TagsACC, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Walker Creek Basin Plan, Water Quality
  • 2001-07-23

    EXH AR029214: Port Of Seattle Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal, Sea-Tac Airport

    Letter dated July 23, 2001 from Port Of Seattle to Ann E. Kenny at Washington State Department of Ecology Northwest Regional Office regarding Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal for Seattle-Tacoma International Airport. Covers summer low streamflow impacts in Des Moines Creek, Miller Creek, and Walker Creek from airport Master
    TagsACC, Des Moines Creek, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Stormwater
  • 2001-07-23

    EXH AR050780: Assessment of the Existing and Future Hydrologic Divide of Miller, Walker, and Des Moines Creeks After Construction of Master Plan Update Projects at STIA

    Parametrix, Inc. report prepared for Port Of Seattle assessing the existing (1994) and future (2006) hydrologic divide of Miller Creek, Walker Creek, and Des Moines Creek following Master Plan Update (MPU) construction at Seattle-Tacoma International Airport (STIA). Analyzes compliance with Governor’s Certification requirement that the third runway project will not cause changes in the location
    TagsACC, Des Moines Creek, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Third Runway
  • 2001-07-23

    EXH AR051729: Low Flow Analysis – Flow Impact Offset Facility Proposal, Sea-Tac Airport

    Port of Seattle letter dated July 23, 2001 to Ann E. Kenny, Washington State Department of Ecology, Northwest Regional Office, summarizing low streamflow impact analysis and flow impact offset facility proposal for Seattle-Tacoma International Airport Master Plan Update projects. Prepared by Parametrix, Inc. Analysis covers summer low streamflow impacts to Des Moines Creek, Miller Creek,
    TagsACC, Des Moines Creek, Ecology, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Stormwater
  • 2001-07-19

    EXH AR018498: Port Of Seattle Parcel 92 Condemnation — Prior Converted Croplands Wetland Ruling and Lora Lake Mitigation Credit Discussion

    Email chain (AR018498–AR018499) dated July 19, 2001, from Erik Stockdale (likely Washington State Department of Ecology) to Joan Marchioro (ATG) and Andy McMillan, forwarding a message from Jim Kelley of Parametrix, Inc. The judge ruled in favor of Port Of Seattle in the Parcel 92 condemnation case, finding that prior converted croplands were wetlands under
    TagsACC, Auburn Wetland, Ecology, Lora Lake, PCHB, Pollution Control Hearings Board, Port Of Seattle
  • 2001-07-18

    EXH AR017928: Memo to Governor Gary Locke — Port Of Seattle Proposed Third Runway and Associated Projects, Status of Decision Making Process

    Memo dated July 18, 2001 from Tom Fitzsimmons, Director, Washington State Department of Ecology, to Governor Gary Locke regarding the status of the 401 Water Quality Certification decision for the Port Of Seattle proposed Third Runway and associated projects. Ecology is awaiting final technical information from Port consultants on stream low-flow mitigation requirements, expected by
    TagsACC, Ecology, NPDES, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water Quality
  • 2001-07-17

    EXH AR017968: Handwritten Notes from Yvonne — Third Runway SMP/Low Flow Status Meeting, 7/17/01

    Handwritten note from Yvonne to ‘Azura’ transmitting notes from Gordon regarding the Third Runway, noting he does not think they are deliberative. Also includes meeting notes dated 7/17/01 at 10pm for a Third Runway Project Update attended by Ann K, Ray H, John M, Kevin F, Tania Sorenson, Kelly Whittig. Notes cover SMP/Low Flow status:
    TagsACC, Handwritten Notes, Pollution Control Hearings Board, Port Of Seattle, SAMP, Sea-Tac Airport, Third Runway
  • 2001-07-16

    Exhibit 51: 401 Permit Decision-Making, Sea-Tac Airport Third Runway — Final Meeting Notes, Low Flow Analysis

    Final meeting notes from July 16, 2001 for the 401 Permit Decision-Making process for Sea-Tac International Airport Third Runway, covering low flow analysis for Miller Creek and Walker Creek. Attendees included Ann Kenny (Dept. of Ecology), Kelly Whiting (King County), Keith Smith (Port of Seattle), Paul Fendt and Robert Farid (Parametrix), Rick Schaefer (EarthTech), and
    TagsACC, Ecology, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water Quality

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Upcoming Events

  • KCIA 2026 FOD Walk
    Add to CalendarMSaturday Aug 15, 7:30am - 10:00am
    9404 East Marginal Way South, Seattle, WA 98108
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    Museum of FlightSeattle, WA Saturday, August 15  •  7:30 AM – 10 AM Overview Join us for the KCIA 2026 FOD Walk—let’s keep the runway clean and have some fun together! Join Us for the KCIA 2026 FOD Walk! Get ready to step out and enjoy an awesome in-person event all about keeping our spaces

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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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