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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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  • 1995-03-23

    EXH AR038633: Major Supplemental Airport Feasibility Study — Summary Report

    Major Supplemental Airport Feasibility Study Summary Report dated March 23, 1995, sponsored by the Puget Sound Regional Council (PSRC), prepared by TAMS Consultants, Inc. in association with Pacific Rim Resources and Parametrix, Inc. The report covers site analysis, noise impact areas (65 Ldn contours), access analysis, instrument approach capability, local airspace evaluation, site constructability, site
    TagsACC, EIS, Noise, Pollution Control Hearings Board, PSRC, Puget Sound Regional Council, Second AirportFolderBox 16
  • 1995-01-01

    EXH AR034578: Wetlands: Characteristics and Boundaries (1995) — Chapter 6, Especially Controversial Wetlands

    National Research Council publication ‘Wetlands: Characteristics and Boundaries’ (1995), Committee on Characterization of Wetlands, Water Science and Technology Board, Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources. Exhibit AR034578. Chapter 6 covers especially controversial wetlands including permafrost wetlands, riparian ecosystems, isolated and headwater wetlands, shallow wetlands, agricultural wetlands, nonagricultural altered sites,
    TagsAcademic Journals, ACC, Environment, Land, National Academies of Sciences, Pollution Control Hearings BoardFolderBox 14
  • 1995-01-01

    EXH AR037648: Toxicity of Aircraft De-Icer and Anti-Icer Solutions to Aquatic Organisms

    Peer-reviewed article by S. Ian Hartwell, David M. Jordahl, Joyce E. Evans, and Eric B. May (Maryland Department of Natural Resources) published in Environmental Toxicology and Chemistry, Vol. 14, No. 8, 1995. Study assesses toxicity of ethylene glycol-based de-icer and propylene glycol-based anti-icer solutions from Baltimore-Washington International Airport (BWI) to aquatic organisms including fathead minnow
    TagsAcademic Journals, ACC, Deicing, Environment, Ethylene Gycol, Pollution Control Hearings Board, Water QualityFolderBox 15
  • 1995-01-01

    EXH AR037691: The Acute Whole Effluent Toxicity of Storm Water from an International Airport

    Academic journal article published in Environmental Toxicology and Chemistry (Vol. 14, No. 6, 1995) by Fisher, Knott, Turley, Turley, Yonkos, and Ziegler from the University of Maryland and Maryland Department of the Environment. Study characterizes acute whole effluent toxicity (WET) of storm water from Baltimore-Washington International Airport (BWI) on fathead minnow (Pimephales promelas) and daphnid
    TagsACC, Deicing, EPA, Ethylene Gycol, NPDES, Pollution Control Hearings Board, StormwaterFolderBox 15
  • 1994-10-27

    EXH AR037732: Puget Sound Regional Council Resolution No. EB-94-01 — Third Runway at Sea-Tac and Supplemental Airport Studies

    Resolution EB-94-01 adopted October 27, 1994 by the Puget Sound Regional Council (PSRC) Executive Board, affirming the General Assembly’s Resolution A-93-03 approving a third all-weather runway at Sea-Tac International Airport. The Executive Board determined no feasible sites exist for a major supplemental airport in the four-county region and that further supplemental airport studies should not
    TagsACC, Pollution Control Hearings Board, PSRC, Puget Sound Regional Council, Sea-Tac Airport, Third RunwayFolderBox 15
  • 1994-10-01

    EXH AR038631: Natural Background Soil Metals Concentrations in Washington State

    Washington State Department of Ecology (Ecology) Publication #94-115 reporting natural background concentrations of metals in surficial soils throughout Washington State, based on a seven-year study co-sponsored by USGS Water Resources Division (Tacoma Office). Study divided Washington into 24 regions, selected 12 for statewide assessment, collected 490 soil samples from 166 locations including Puget Sound, Clark
    TagsACC, Arsenic, Ecology, Pollution Control Hearings Board, soil, State of WashingtonFolderBox 16
  • 1994-08-01

    EXH AR037430: EPA Water Quality Standards Handbook: Second Edition — Appendix L, Interim Guidance on Determination and Use of Water-Effect Ratios for Metals

    EPA Water Quality Standards Handbook, Second Edition (EPA-823-B-94-005a), August 1994, published by the EPA Office of Water (4305). Includes Appendix L: Interim Guidance on Determination and Use of Water-Effect Ratios for Metals, and a February 22, 1994 memorandum (EPA-823-B-94-001) from Tudor T. Davies, Director, Office of Science and Technology, to Water Management Division Directors Regions
    TagsACC, Clean Water Act, Environmental Protection Agency, EPA, Pollution Control Hearings Board, Water QualityFolderBox 15
  • 1994-06-30

    EXH AR026741: NPDES Permit No. WA-002465-I STIA Response to Comments

    This 1994 document is a Response to Comments on a proposed National Pollutant Discharge Elimination System (NPDES) wastewater discharge permit issued to the Port of Seattle for Sea-Tac International Airport. It summarizes public feedback gathered at meetings in Des Moines and Normandy Park, Washington, addressing topics such as storm water management, effluent limitations, spill plans, and pollution prevention at the airport. The document reflects the Department of Ecology's review of industrial wastewater, cooling water, and storm water discharges from airport operations including aircraft maintenance, fueling, and de-icing activities.
    TagsACC, Ecology, NPDES, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Water QualityFolderBox 10
  • 1994-06-30

    EXH AR028290: NPDES Permit No. WA-002465-1 Issuance Letter and Permit — Port Of Seattle Sea-Tac International Airport

    Washington State Department of Ecology (Ecology) letter dated June 30, 1994, issuing NPDES Permit No. WA-002465-1 to Port Of Seattle – Sea-Tac International Airport, expiring June 30, 1999. Signed by John H. Glynn, Water Quality Supervisor, Northwest Regional Office. Permit authorizes discharge of industrial wastewater, non-contact cooling water, and storm water to Puget Sound, Des
    TagsACC, Clean Water Act, Ecology, NPDES, Pollution Control Hearings Board, Port Of Seattle, Water QualityFolderBox 10
  • 1994-03-30

    Exhibit 721: Record of Communication — Outgoing Call to Kevin Fitzpatrick, Ecology, Regarding WER Work Plan and Mixing Zone Study

    Parametrix Record of Communication (AR 026481–026483), project no. 55-2912-01, dated 3/30/94, by Linda Logan, documenting outgoing call to Kevin Fitzpatrick at Ecology (Ecolog[y]) as follow-up to 3/25/99 meeting. Topics include WER (Waste Effluent Ratio) work plan outline review by Gary Bailey and Randy Marshall, mixing zone study approach review by Norm Glen, AKART requirements at
    TagsACC, Ecology, NPDES, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Water QualityFolderBox 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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