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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.

TagThird Runway(118)

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  • 2020-08-11

    Miller Creek Culvert Replacement, Fish Passage and Stream Restoration

    ★
    Port of Seattle Commission agenda memorandum requesting authorization for the Executive Director to execute an Interlocal Agreement with the City of Burien, contributing $800,000 toward a $3.5 million project to divert Miller Creek, abandon a failing stream culvert, and construct fish-passable culverts along 450 linear feet of restored stream habitat on Port property to protect
    CategoriesKey Documents TagsAirport, Clean Water Act, Port Of Seattle, Third Runway
  • Port Of Seattle – Resolution No 3212

    ★ 32
    Update to Master Plan passed to enable the Third Runway construction to commence. The Commission finds that the EIS for Proposed Master Plan Update Development Actions (including the PSRC-issued EIS Addendum) is adequate and meets the requirements of the State Environmental Policy Act, Ch. 43.21C RCW. Section 2. The Comnission hereby adopts the Airport Master
    CategoriesKey Documents TagsPort Of Seattle, Puget Sound Regional Council, SEPA, Third Runway
  • 2013-10-15

    Informal Runway Use Agreement (Appendix I 2013 Part 150 Study)

    ★ 32
    Appendix I from the 2013 Part 150 Study by Landrum & Brown. A Letter Of Agreement (LOA) where the Port Of Seattle agrees to using the Third Runway primarily for overflows and bad weather. Note the very official looking signature of the Port CEO, Tay Yoshitani. Also note that it is described as an ‘informal
    CategoriesKey Documents TagsLandrum & Brown, Part 150, Runway Use Agreement, Tay Yoshitani, Third Runway
  • 1997-02-06

    Sea-Tac International Airport Impact Mitigation Study (HOK)

    ★ 32
    The Helmuth, Obata Kassabaum study, referred to as ‘HOK’, began as an individual community grant application by the City of Burien. Understandably it became associated with the ACC (plaintiffs in lawsuits attempting to stop the Third Runway) and a response to the defects of the Third Runway EIS. However, this was an independent effort, put
    CategoriesKey Documents TagsEIS, Environmental Impact Statement, HOK, Noise, pollution, Third Runway
  • 1996-03-27

    Final Decision on Noise Issues – Expert Arbitration Panel’s Review of Noise and Demand/System Management Issues at Sea-Tac International Airport

    ★
    This is the final decision by the Expert Arbitration Panel on Noise and Demand/System Management Issues regarding Sea-Tac International Airport. The majority of the panel concluded that while the Port of Seattle has implemented noise abatement and mitigation programs, they have not shown sufficient reduction in real on-the-ground noise impacts to satisfy the requirements of
    CategoriesKey Documents, Litigation TagsPort Of Seattle, PSRC, Puget Sound Regional Council, Sea-Tac Airport, Third Runway
  • 1994-10-27

    PSRC Resolution EB-94-01

    ★ 32
    WHEREAS, State law fails to address the issue of incentives and compensation beyond normal mitigation for those cornunities which are recipients of essential public facilities; and WHEREAS, the cost of building a major supplemental airport would impose a substantial new financial encumbrance which would conflict with other important regional obligations, while the cost of building
    CategoriesKey Documents TagsPSRC, Puget Sound Regional Council, Third Runway
  • Sea tac airport final EIS feb. 1996 vol. 1 of 7 page 31

    Sea-Tac-Airport-Final-EIS-Feb.-1996-Vol

    The 1996 Environmental Impact Statement prepared by Landrum & Brown
    TagsEIS, Environmental Impact Statement, Third RunwayStudy TopicsAir Quality, Noise, Socioeconomics, Transportation
  • STIA_MPU_Final_Supplemental_EIS__May_1997__Vol._3_of_3_1 Appendix G

    TagsEIS, Environmental Impact Statement, Third Runway
  • STIA Master Plan Update Final Supplemental EIS May,1997 Vol. 1 of 3 Main Appendix A-C1

    TagsEIS, Environmental Impact Statement, Third RunwayStudy TopicsAir Quality, Noise, Socioeconomics, Transportation
  • STIA Final Supplemental Environmental Impact Statement EIS MPU Vol 2 of 3 Appendices C2-F

    TagsEIS, Environmental Impact Statement, Third Runway

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  • Joint Des Moines and Burien Airport Committee Meeting
    Add to CalendarMMonday Jul 13: 4:00pm
    21630 11th Avenue S, Suite C,
    July 13 2026 joint des moines and burien airport committee meeting agenda packet pdf

    Agenda Item: 2026 Aviation Noise & Emissions Symposium Summary Document Link

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  • Rep. Adam Smith Aviation Forum
    Add to CalendarMSaturday Jul 18, 1:00pm - 2:00pm
    2400 S. 240th St,
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    From the Office of Congressman Adam Smith: Highline College (Building 8, Mt. Townsend Room)Des Moines, WA Saturday, July 18 • 1 PM – 2 PM Join Rep. Adam Smith for an Aviation Forum. Attendees will have questions and concerns about aviation noise and emissions. RSVP today! Representative Adam Smith is hosting an aviation forum with

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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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A report examining the barriers to implementing sustainable aviation fuel (SAF) in Massachusetts, authored by Neil Rasmussen and Chuck Collins from the Institute for Policy Studies. The report analyzes challenges and obstacles facing SAF adoption in the state.
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