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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.

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  • 2000-11-30

    Exhibit 189: Draft Letter to the Consulting Engineers Council of Washington Regarding RCW 39.80 and Professional Wetland Scientist Selection for Sea-Tac Third Runway

    Email from Ann Kenny (Ecology, Shorelands and Environmental Assistance Program) dated November 30, 2000, to Leslie Seffern (ATG) and Erik Stockdale, circulating a draft response letter to Bill Garrity, Executive Director of CECW (Consulting Engineers Council of Washington), regarding his November 22, 2000 letter challenging Ecology’s Request for Bid process for selecting a wetland consultant.
    TagsACC, Ecology, Pollution Control Hearings Board, Port Of Seattle, RCW, SEPA, Third RunwayFolderBox 08
  • 2000-11-22

    Exhibit 190: Letter from Consulting Engineers Council of Washington to Ecology Regarding RCW 39.80 Violation in Sea-Tac Third Runway NRMP RFP

    Letter dated November 22, 2000 from Bill Garrity, Executive Director of the Consulting Engineers Council of Washington (CECW), to Erik Stockdale at the Washington Department of Ecology (AR 018492–018493). The letter addresses the Request for Bid (RFP dated November 14, 2000) for review of the Natural Resource Mitigation Plan (NRMP) for the SeaTac Third Runway
    TagsACC, Ecology, Pollution Control Hearings Board, RCW, Sea-Tac Airport, Third Runway, WACFolderBox 08
  • 1998-07-09

    EXH AR041629: Memorandum Ruling on Application of WAC Ch. 365-195

    King County Superior Court Memorandum Ruling by Judge Robert H. Alsdorf on Application of WAC Chapter 365-195 (Procedural Criteria for Adopting Comprehensive Plans and Development Regulations) in consolidated cases No. 96-2-20357-2 KNT, No. 97-2-13908-2 KNT, No. 97-2-22276-1 KNT, No. 98-2-04911-1 KNT. City of Des Moines, Airport Communities Coalition, and other plaintiff-petitioners argued against the Port
    TagsACC, Airport Communities Coalition, City Of Des Moines, Pollution Control Hearings Board, Port Of Seattle, RCW, WACFolderBox 17
  • 1995-12-14

    Exhibit 201: Ecology Delegation of Authority — Tom Luster, Section 401 Certifications and CZM Consistency Determinations

    These three pages from the Washington State Department of Ecology document the delegation of signature authority to staff member Tom Luster, allowing him to issue routine Section 401 water quality certifications, Coastal Zone Management consistency determinations, and related administrative orders. Originally signed by Director Mary Riveland in December 1995, the authority was reaffirmed by Director Tom Fitzsimmons in February 1997. The delegation includes a succession of authority chain to ensure continuity if Luster is absent or leaves his position.
    TagsACC, Ecology, Environmental Impact Statement, PCHB, Pollution Control Hearings Board, RCW, WACFolderBox 08
  • 1995-01-20

    House Bill 1293: Soundproofing programs in aircraft noise-impacted areas

    Washington House Bill 1293 (1995) amended state law governing how port districts can address aircraft noise impacts on nearby properties, expanding soundproofing programs and removing a prior requirement that property owners waive damages and convey easements in exchange for noise mitigation. The bill declared such damage-waiver agreements void as against public policy, meaning residents near airports like Sea-Tac could receive soundproofing benefits without giving up their legal rights. The act was designated an emergency measure, intended to take effect immediately upon passage.
    CategoriesHistory TagsNoise Mitigation, Port Of Seattle, RCW, Soundproofing, Washington State LegislatureFolderLegislation
  • 1993-07-25

    Substitute House Bill 1915: Aircraft noise abatement–assistance to individual properties

    Washington State's Substitute House Bill 1915, signed into law on April 30, 1993, expanded the tools available to port districts for addressing aircraft noise impacts on nearby properties. The law allows ports to offer affected property owners a range of remedies, including property acquisition, transaction assistance, soundproofing programs, and mortgage insurance. A key update permits individual properties to receive benefits more than once if they experience increased or changed aircraft noise levels that would have warranted a different level of mitigation.
    CategoriesHistory TagsLegislation, Noise Mitigation, RCW, State of WashingtonFolderLegislation
  • 1992-12-26

    EXH AR017093: Water Quality Standards for Surface Waters of the State of Washington — WAC Chapter 173-201A

    Washington Administrative Code (WAC) Chapter 173-201A, Water Quality Standards for Surface Waters of the State of Washington, issued by the Washington State Department of Ecology under RCW 90.48. Covers introduction (WAC 173-201A-010) and definitions (WAC 173-201A-020) including AKART, background conditions, best management practices, carcinogen, chronic/acute conditions, critical condition (7Q10 flow), ecoregions, fecal coliform, hardness, mixing
    TagsACC, Ecology, Pollution Control Hearings Board, RCW, WAC, Washington Administrative Code, Water QualityFolderBox 08
  • 1979-02-09

    Senate Bill No. 3076: An act relating to port districts

    Washington State Senate Bill 3076, introduced in 1979, proposed the creation of a State Port Commission to financially assist and coordinate port districts across Washington. The three-member commission, appointed by the governor with senate approval, would serve six-year terms and be tasked with promoting domestic and foreign trade, eliminating wasteful competition, and supporting port facility development. Note: This bill pertains to port district governance and commerce, and does not directly address Sea-Tac Airport noise policy.
    TagsLegislation, RCW, State of Washington, Washington Ports, Washington State LegislatureFolderLegislation
  • 1979-02-09

    House Bill No. 1191: Relating to port district commissioners

    Washington State House Bill 1191, introduced in 1979, amends laws governing port district commissioners in the state, covering how candidates file for office and how commissioner positions are numbered and assigned. The bill updates rules for port districts in Class AA counties, including provisions for expanding commissions from three to five members, with some commissioners elected by district and others chosen at large. While this bill governs port district governance structure, it does not directly address airport noise policy.
    TagsLegislation, Port Of Seattle, RCW, State of Washington, Washington State LegislatureFolderLegislation
  • 1979-01-26

    Memorandum to Rep. Barnes & Rohrbach: Port District Restructuring Proposals

    A January 1979 legislative memorandum from research analyst Jay Holman to Washington state representatives proposes amendments to port district governance laws, including allowing voters to split port districts into separate functional entities and modify how port commissioners are elected. A follow-up note from January 31, 1979 refines the proposal, suggesting that five port commissioners be retained but that three be elected from newly formed sub-districts and two chosen at-large, with changes to take effect at the November 1979 general election.
    TagsHistory, Legislation, Port Of Seattle, RCW, Suggested Legislation, Washington State LegislatureFolderHistory

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • 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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