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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.

TagACC(1531)

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  • 1994-03-01

    EXH AR028121: Guidelines for Developing Freshwater Wetlands Mitigation Plans and Proposals

    Guidelines for developing freshwater wetlands mitigation plans and proposals, published March 1994 as Ecology Publication #94-29. Jointly produced by Washington State Department of Ecology, Washington State Department of Fish and Wildlife, U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, and U.S. Fish and Wildlife Service. Covers restoration, creation, and enhancement of freshwater wetlands as
    TagsACC, Army Corp of Engineers, Ecology, Environment, EPA, Pollution Control Hearings Board, State of WashingtonFolderBox 10
  • 1993-11-24

    EXH AR017345: Ecology Implementation Memo No. 3 — PQLs as Cleanup Standards

    Washington State Department of Ecology Implementation Memo No. 3, authored by Steve Robb of the Toxics Cleanup Program, dated November 24, 1993. Addresses two issues under the Model Toxics Control Act (MTCA): (1) long-term liability for potentially liable persons (PLPs) when cleanup levels are set at practical quantitation limits (PQLs) rather than risk-based levels, including
    TagsACC, Ecology, Model Toxics Control Act, MTCA, Pollution Control Hearings Board, WACFolderBox 08
  • 1993-11-24

    Exhibit 2126: Implementation Memo No. 3 — PQLs as Cleanup Standards

    Implementation Memo No. 3 dated November 24, 1993, from Steve Robb of the Washington State Department of Ecology Toxics Cleanup Program to Interested Staff, addressing two issues regarding practical quantitation limits (PQLs) as cleanup standards under the Model Toxics Control Act (MTCA). Covers long-term liability for potentially liable persons (PLPs) who clean up to PQL
    TagsACC, Ecology, Model Toxics Control Act, MTCA, Pollution Control Hearings Board, soil, WACFolderBox 14
  • 1993-04-29

    EXH AR037723: Puget Sound Regional Council Resolution A-93-03 Amending the 1988 Interim Regional Airport System Plan (RASP)

    Resolution A-93-03 adopted by the Puget Sound Regional Council General Assembly on April 29, 1993, amending the 1988 Interim Regional Airport System Plan (RASP) for long-term commercial air transportation capacity needs of the central Puget Sound region (King, Kitsap, Pierce, Snohomish counties). Establishes as preferred alternative a major supplemental airport in the four-county area plus
    TagsACC, Four Post Plan, Paine Field, Pollution Control Hearings Board, Puget Sound Regional Council, RASP, Third RunwayFolderBox 15
  • 1993-04-19

    ACC Strategy Options and Recommendations Memorandum by Cutler & Stanfield

    A 1993 confidential legal memorandum from law firm Cutler & Stanfield to the Airport Communities Coalition (ACC) outlines strategies for opposing the planned third runway expansion at Seattle-Tacoma International Airport. The memo recommends that the ACC Cities prioritize preventing new runway construction as their primary goal, with secondary goals focused on reducing noise impacts, limiting night flights, and improving mitigation for affected residents. The overarching strategy was to build enough political and legal leverage so that airport expansion decisions could not practically move forward without the ACC Cities' participation.
    TagsACC, Airport Communities Coalition, Cutler & Stanfield, Four Post Plan, Third RunwayFolderACC
  • 1993-04-01

    Report on Legal Issues in Connection with the Proposed Expansion of Seattle-Tacoma International Airport

    This April 1993 confidential legal report, prepared by law firm Cutler & Stanfield for the Airport Communities Coalition, examines the legal issues surrounding the proposed expansion of Seattle-Tacoma International Airport, including the construction of a third runway. It reviews the powers and responsibilities of key governmental entities — including the FAA, the Port of Seattle, the Puget Sound Regional Council, and surrounding cities — in relation to airport planning, noise abatement, and environmental impacts. The report also assesses geographic and environmental conditions in the SEA area, covering noise-sensitive locations, wetlands, air quality, and other factors relevant to community opposition to the expansion.
    TagsACC, Airport Communities Coalition, Cutler & Stanfield, Port Of Seattle, Puget Sound Regional Council, Third RunwayFolderACC
  • 1993-03-01

    EXH AR034597: Wildlife Use of Riparian Habitats: A Literature Review

    TFW-WL1-93-001 literature review compiled by Margaret A. O’Connell (Eastern Washington University), James G. Hallett (Washington State University), and Stephen D. West (University of Washington) for the Timber, Fish & Wildlife (TFW) program. Reviews empirical studies on wildlife use of riparian habitats in Washington State, covering amphibians, reptiles, birds, small mammals, bats, carnivores, and ungulates. Includes
    TagsAcademic Journals, ACC, Environment, Pollution Control Hearings Board, State of Washington, University of Washingon, Washington State UniversityFolderBox 14
  • 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
  • 1992-11-06

    EXH AR038603: Findings, Conclusions, and Decision — City of Federal Way Appeal of Flight Plan Project EIS Adequacy

    Office of the Hearing Examiner, Puget Sound Regional Council (PSRC) Findings, Conclusions, and Decision on City of Federal Way appeal (filed November 6, 1992) challenging adequacy of the Flight Plan Project Final Environmental Impact Statement (FEIS) issued by PSRC as nominal lead agency and Port of Seattle as co-lead agency. Appeal challenges FEIS adequacy in
    TagsACC, Environmental Impact Statement, Federal Way, Flight Plan Project, Pollution Control Hearings Board, Puget Sound Regional Council, Third RunwayFolderBox 16
  • 1992-02-01

    EXH AR028244: Wetland Mitigation Replacement Ratios: An Annotated Bibliography

    Annotated bibliography on wetland mitigation replacement ratios, published February 1992 as Publication #92-09 by the Washington State Department of Ecology (Ecology), Shorelands and Environmental Assistance Program, Olympia, Washington. Edited by Andrew J. Castelle, Catherine Conolly, and Michael Emers (Adolfson Associates, Inc., Edmonds, WA) and Eric D. Metz, Susan Meyer, and Michael Witter (W & H
    TagsACC, Ecology, Environment, Pollution Control Hearings Board, State of WashingtonFolderBox 10

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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

    [...]

[See all...]


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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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