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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.

TagCity Of SeaTac(107)

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  • 2002-01-01

    Final Staff Evaluation for SEPA Environmental Checklist – Des Moines Creek Basin Restoration Projects

    ★
    The City of SeaTac conducted an environmental review of the Des Moines Creek Basin Restoration Projects, a multi-agency effort involving the cities of SeaTac and Des Moines, the Port of Seattle, and King County. The project aims to improve water quality, reduce flooding, and restore fish habitat along Des Moines Creek by building a new detention facility, installing a high-flow bypass pipe, and maintaining low-flow water levels during dry summer months. The city's staff determined that the project does not require a full Environmental Impact Statement, as it is not expected to have a significant adverse impact on the environment.
    CategoriesKey Documents TagsCity Of Des Moines, City Of SeaTac, Des Moines Creek Basin Plan, Port Of Seattle
  • 1997-09-04

    City of SeaTac distribution schedule: Interlocal Agreement with Port Of Seattle (Agreement #97-A98)

    ★ 32
    The original Interlocal Agreement (ILA) between the Port of Seattle and the City of SeaTac.
    CategoriesKey Documents TagsCalvin Hoggard, City Of SeaTac, Gina Marie Lindsey, ILA, Interlocal Agreement
  • 1992-06-26

    North SeaTac Park master plan draft

    ★
    This 1992 draft Master Plan for North SeaTac Park was submitted by landscape architecture firm Jones & Jones to the City of SeaTac and King County. The plan outlines proposed development and improvements for North SeaTac Park, a public green space in the community surrounding Seattle-Tacoma International Airport. The document reflects a collaborative effort involving city staff, elected officials, a citizen advisory committee, and King County parks representatives.
    CategoriesKey Documents TagsCity Of SeaTac, Jones & Jones, King County, Master Plan, North Sea-Tac Park, NSTP
  • 2026-07-16

    Joint letter from Burien, Des Moines, and SeaTac requesting extension of SAMP SEPA DEIS comment period

    The city managers of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners requesting an extension of the public comment period for the Sustainable Airport Master Plan’s SEPA Draft Environmental Impact Statement from 60 to at least 120 days. The letter cites three independent grounds: extraordinary technical complexity, enormous document volume, and
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, Port Of Seattle, SAMP Draft SEPA EIS, SEPA
  • 2026 07 16 joint letter burien des moines and seatac ask for fair SEPA deis process pdf
    2026-07-16

    Joint letter from Burien, Des Moines, and SeaTac requesting extension of SAMP SEPA DEIS comment period

    The city managers of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners requesting an extension of the public comment period for the Sustainable Airport Master Plan’s SEPA Draft Environmental Impact Statement from 60 to at least 120 days. The letter cites three independent grounds: extraordinary technical complexity, enormous document volume, and
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, Port Of Seattle, SAMP Draft SEPA EIS, SEPA
  • SAMP community open house
    2026-07-14

    Community open house — Burien, Des Moines, SeaTac

    Promotional banner for a Community Open House co-hosted by the cities of Burien, Des Moines (Waterland City), and SeaTac (established 1990), featuring imagery of a commercial aircraft and scales of justice, indicating a joint public meeting likely related to Sea-Tac Airport noise or legal/policy matters.
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, community engagement, Open House
  • 2018 interlocal agreement port of seattle and city of seatac page 25 1

    2018 interlocal agreement port of seattle and city of seatac page 25 1

    This official map from the City of SeaTac, prepared in coordination with the Port of Seattle and King County Metro Sound Transit, delineates Airport Activity Areas (AAA) around Seattle-Tacoma International Airport, distinguishing Inside AAA, Outside AAA, Future AAA, and Addition zones. The map shows surrounding jurisdictions including Burien, Tukwila, and Normandy Park, major roads, transit stations (SeaTac/Airport Station, Tukwila International Blvd Station, Angle Lake Station), and key highways including SR 509, SR 518, SR 599, I-5, and I-405.
    TagsCity Of SeaTac, ILA, Interlocal Agreement
  • 2018 interlocal agreement port of seattle and city of seatac page 25

    2018 interlocal agreement port of seattle and city of seatac page 25

    This is Appendix 3A from a City of SeaTac planning document, showing the Airport Activity Areas (AAA) map for the Seattle-Tacoma International Airport region. The map delineates Inside AAA, Outside AAA, Future AAA, and Addition zones, and was prepared by the City of SeaTac using data from the Port of Seattle and King County Metro Sound Transit, with a scale of 2,000 feet / 0.5 miles.
    TagsCity Of SeaTac, ILA, Interlocal Agreement
  • 2026-06-18

    (Draft) Joint letter from City of Burien, City of Des Moines, and City of SeaTac to Port Of Seattle Commissioners regarding SAMP environmental review

    The mayors of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners in 2026 to challenge the claim that airport expansion projects outlined in the Sustainable Airport Master Plan (SAMP) would have no significant impact on neighboring communities. The letter highlights concerns about aircraft noise, air pollution, traffic, and disproportionate burdens on historically disadvantaged residents living closest to the airport. The cities also demand that the public comment period for the Draft Environmental Impact Statement be extended from 60 to at least 120 days to allow for meaningful community review.
    CategoriesMeetings TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, SAMP
  • Burien des moines seatac draft port letter pdf
    2026-06-01

    (Draft) Joint letter from City of Burien, City of Des Moines, and City of SeaTac to Port Of Seattle Commissioners regarding SAMP environmental review

    The mayors of Burien, Des Moines, and SeaTac jointly wrote to Port of Seattle Commissioners in 2026 to challenge the claim that airport expansion projects outlined in the Sustainable Airport Master Plan (SAMP) would have no significant impact on neighboring communities. The letter highlights concerns about aircraft noise, air pollution, traffic, and disproportionate burdens on historically disadvantaged residents living closest to the airport. The cities also demand that the public comment period for the Draft Environmental Impact Statement be extended from 60 to at least 120 days to allow for meaningful community review.
    TagsCity of Burien, City Of Des Moines, City Of SeaTac, Environmental Impact Statement, SAMP

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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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