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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.

TagSea-Tac Airport Master Plan(37)

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  • 1998-05-25

    EXH AR035118: Response to Comments on the Public Notice for Permit Reference No. 96-4-02325 — Master Plan Development Actions at STIA, Port Of Seattle

    Port Of Seattle response to public and agency comments on Army Corps of Engineers Public Notice Permit Reference No. 96-4-02325 for Master Plan Development Actions at Seattle-Tacoma International Airport. AR035118/AR035119. Addresses six major concerns: EPA/COE MOA wetland impact sequencing and compensatory mitigation; justification for out-of-watershed mitigation (Auburn wetland) for wildlife habitat; South Aviation Support Area
    TagsACC, Auburn Wetland, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • 1997-12-05

    EXH AR041439: Findings, Conclusions, and Decision — City of Des Moines et al. v. Port Of Seattle (HE 96-04)

    Hearing Examiner Findings, Conclusions, and Decision in case No. HE 96-04, Airport Communities Coalition (ACC) — comprising City of Des Moines, City of Burien, City of Federal Way, City of Normandy Park, City of Tukwila, and Highline School District #401 — versus Port Of Seattle regarding adequacy of the SEPA Environmental Impact Statement (EIS) and
    TagsACC, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, SEPA
  • 1997-07-03

    EXH AR041146: FAA Record of Decision for Sea-Tac Airport Master Plan Update Development Actions

    FAA Northwest Mountain Region Record of Decision (ROD) dated July 3, 1997, providing final Federal Aviation Administration approval for Sea-Tac International Airport Master Plan Update development actions adopted by Port of Seattle (POS) Commission Resolution #3212 (August 1, 1996) and amended by Resolution No. 3245 (May 27, 1997). Approves a new 8500-foot dependent air carrier
    TagsACC, Environmental Impact Statement, FAA, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • 1997-05-28

    EXH AR041132: Port Of Seattle Commission Resolution No. 3245 — Reaffirming Master Plan Update and Authorizing Third Runway Construction at STIA

    Port Of Seattle Commission Resolution No. 3245 reaffirms adoption of the Airport Master Plan Update for Seattle-Tacoma International Airport (STIA), authorizes construction of a new dependent air carrier runway (third runway) located 2500 feet west of existing runway 16L/34R, expansion of the existing parking garage, and a new north employee parking lot. References PSRC Resolution
    TagsACC, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle Commission, Puget Sound Regional Council, Sea-Tac Airport Master Plan, Third Runway
  • 1997-05-01

    Sea-Tac Airport Master Plan Update Final EIS: Appendix R — Response to Comments on the Draft Environmental Impact Statement

    This document is Appendix R of the Sea-Tac Airport Master Plan Update Final Environmental Impact Statement (EIS), containing official responses to public comments received during a 90-day comment period in 1995. Two public hearings gathered testimony on topics including noise impacts, land use, air quality, and surface transportation. A key finding was that airport activity levels were expected to grow regardless of whether improvements were built, driven by regional population and income growth rather than airport capacity alone.
    TagsEnvironmental Impact Statement, Federal Way, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • 1997-05-01

    EXH AR040519: Final Supplemental Environmental Impact Statement for Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport

    Final Supplemental Environmental Impact Statement (SEIS) dated May 1997, prepared jointly by the FAA Northwest Mountain Region (responsible official Dennis Ossenkop) and Port Of Seattle (SEPA contact Barbara Hinkle), for proposed Master Plan Update development actions at Seattle-Tacoma International Airport. Covers proposed 8,500-foot third parallel runway (Runway 16X/34X) located 2,500 feet west of existing Runway
    TagsACC, Environmental Impact Statement, FAA, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • Sea tac mpu feis appendix r response to comments draft EIS pdf
    1997-05-01

    Sea-Tac Airport Master Plan Update Final EIS: Appendix R — Response to Comments on the Draft Environmental Impact Statement

    Appendix R of the Sea-Tac Airport Master Plan Update Final EIS contains responses to all public and agency comments submitted during the 90-day comment period (closed August 3, 1995) on the Draft Environmental Impact Statement. Two public hearings were held: June 1, 1995 at the SeaTac Red Lion Hotel (77 testifiers, ~150 attendees) and June
    TagsEnvironmental Impact Statement, Federal Way, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • 1997-03-19

    ACC Comments on Draft Supplemental EIS for Proposed Master Plan Update March 19, 1997

    Comments submitted by the Airport Communities Coalition—comprising the cities of Burien, Des Moines, Federal Way, Normandy Park, Tukwila, and Highline Public Schools—on the Draft Supplemental Environmental Impact Statement for the proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport. The document was prepared by Cutler & Stanfield, L.L.P. as counsel to the coalition, in
    TagsACC, Airport Communities Coalition, Cutler & Stanfield, EIS, Environmental Impact Statement, Sea-Tac Airport Master Plan, Third Runway
  • 1996-12-18

    EXH AR040435: Port Of Seattle Section 404 Application Letter — Third Runway Master Plan Update

    Letter dated December 18, 1996 from Barbara Hinkle, Senior Environmental Specialist, Port Of Seattle, to Jack Kennedy, U.S. Army Corps of Engineers, Seattle District Office, submitting a Section 404 Application to place fill material into waters of the United States at Seattle-Tacoma International Airport associated with the Master Plan Update. Covers background on the Puget
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third Runway
  • 1996-10-01

    Memorandum of Agreement: Air Quality Monitoring Program Activities Relating to the Seattle-Tacoma International Airport Vicinity

    This 1996 Memorandum of Agreement establishes a 24-month air quality monitoring program near Seattle-Tacoma International Airport, involving the Port of Seattle, FAA, EPA, Washington State Department of Ecology, and the Puget Sound Air Pollution Control Agency. The program, funded at $195,000, focuses on measuring carbon monoxide, nitrogen oxides, and aircraft fuel particle residue to establish baseline air quality data and evaluate potential pollution impacts from planned airport expansion projects. The Port agreed not to proceed with expansion elements projected to cause carbon monoxide standard violations until monitoring is complete and, if necessary, mitigation measures are identified.
    TagsEcology, EIS, Environmental Impact Statement, Environmental Protection Agency, EPA, FAA, Mic Dinsmore, Port Of Seattle, PSAPCA, PSCAA, Sea-Tac Airport Master Plan, Third Runway

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  • 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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    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 clean and safe! The FOD Walk is a great chance to connect, learn, and have fun while helping out. Whether you’re a pro or just curious, everyone’s welcome to join the

    [...]
  • Joint Burien Airport Committee & Des Moines Airport Advisory Committee Meeting August 18, 2026
    Add to CalendarMTuesday Aug 18: 6:00pm
    400 SW 152nd St, Burien, WA 98166

    1. Call to Order 2. Public Comment 3. Business Agenda a) Discussion with Sen. Tina Orwall (35 minutes) • Legislative Agenda • Funding Sources for Mitigation b) SAMP DEIS Updates (15 minutes) 4. Next Meeting Date The next regular meeting of the Burien Airport Committee will be September 15, 2026, at 6 p.m. 5. Adjournment

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    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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