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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.

TagEnvironmental Impact Statement(325)

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  • 2001-05-05

    Exhibit 2098: Ecology Memorandum — Report of Discussion on Slice Model Integration Relating to Sea-Tac Airport Master Plan Update Low Streamflow Analysis

    Memorandum dated May 5, 2001 from Dave Garland, Ecology NWRO Water Quality Nonpoint Unit, to Ray Hellwig and Ann Kenny, through Kevin Fitzpatrick, documenting an April 20, 2001 meeting with Pony Ellingson and Crispin Prahl of Pacific Groundwater Group (PGG) regarding the ‘slice model’ (PGG, June 2000) integration methods for estimating 3rd runway embankment drainage
    TagsACC, Ecology, Environmental Impact Statement, Pollution Control Hearings Board, Sea-Tac Airport, Third Runway, Water QualityFolderBox 14
  • 2001-04-30

    EXH AR050083: Response to Comments — Master Plan Update Improvements at Seattle-Tacoma International Airport, Permit 1996-4-02325

    Port of Seattle response to agency and public comments on Section 404 Clean Water Act permit application (JARPA, reference 1996-4-02325) for Master Plan Update improvements at Seattle-Tacoma International Airport. Covers U.S. Army Corps of Engineers public notice history (December 19, 1997; September 30, 1999; December 27, 2000), wetland fill acreages, Miller Creek channel relocation, Highline
    CategoriesHistory TagsACC, Army Corp of Engineers, Clean Water Act, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master Plan, Third RunwayFolderBox 21
  • 2001-04-30

    EXH AR050378: Response to Comments — Master Plan Update Improvements at Seattle-Tacoma International Airport, Permit 1996-4-02325

    Port Of Seattle response to agency and public comments on Section 404 Clean Water Act permit application (JARPA, permit 1996-4-02325) for Master Plan Update improvements at Seattle-Tacoma International Airport. Document AR050378 covers comments received following the December 27, 2000 second revised public notice issued by the U.S. Army Corps of Engineers. Responds to Tom Luster,
    TagsACC, Airport Communities Coalition, Clean Water Act, Environmental Impact Statement, Miller Creek, Pollution Control Hearings Board, Port Of SeattleFolderBox 21
  • 2001-04-23

    Exhibit 2209: Email and Photos — Mitigation Planning in Auburn, STIA Master Plan Update Improvements

    Email from Jim Kelley (Parametrix, Inc.) to klw@shanwil.com dated April 23, 2001, regarding wetland mitigation planning for the Auburn mitigation site associated with Seattle-Tacoma International Airport Master Plan Update Improvements. Kelley discusses shrub and emergent plant community design, water level management between 41 and 42 feet, planting elevations to out-compete blackberry and reed canary grass,
    TagsACC, Auburn Wetland, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master PlanFolderBox 14
  • 2001-03-22

    Exhibit 192: Handwritten Meeting Notes on Stormwater Ponds D, F, and G — Wetland Hydrology and Drainage

    Handwritten meeting notes dated 3-22-01 (AR 018495–018497, Exhibit 192) from a meeting involving Kelly Whiting, Katie Walters, and others (SKW MIG at WLRD). Notes cover Pond D (discharge not modelled, meets flow standards, indirect impacts to wetlands, SDW1B, seasonal groundwater at 336 ft, infiltration facility 0.2 cfs), Pond F (discharges to Walker Creek via riprap
    TagsACC, Army Corp of Engineers, Environmental Impact Statement, Miller Creek, NEPA, Pollution Control Hearings Board, StormwaterFolderBox 08
  • 2001-03-01

    EXH AR049873: Essential Fish Habitat Assessment — Master Plan Update Improvements, STIA

    Essential Fish Habitat (EFH) Assessment prepared by Parametrix, Inc. for the Federal Aviation Administration and Port Of Seattle for Master Plan Update Improvements at Seattle-Tacoma International Airport (STIA), March 2001. Document AR049873 (project 556-2912-001) evaluates Pacific Coast salmon EFH — Chinook, Coho, and Puget Sound Pink salmon — in Miller Creek Basin, Des Moines Creek
    TagsACC, Environmental Impact Statement, FAA, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, SalmonFolderBox 21
  • 2001-03-01

    EXH AR050023: Draft Conceptual Reclamation Permit Package, Borrow Areas 3 and 4, Sea-Tac International Airport

    Draft Conceptual Reclamation Permit Package for Borrow Areas 3 and 4 at Sea-Tac International Airport, City of SeaTac, Washington. Prepared by Hart Crowser for Port Of Seattle for presentation to the Washington Department of Natural Resources (DNR), March 1, 2001, project J-4978-62. Document covers site preparation activities, mining practices, operating plan, conceptual reclamation plan, revegetation
    TagsACC, Des Moines Creek, Ecology, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac AirportFolderBox 21
  • 2001-02-14

    Exhibit 158: Ecology Informational Meeting Notes with Erik and Ann, 2-14-01

    Handwritten notes from an Ecology informational meeting with Erik and Ann dated February 14, 2001 (AR 018355-018357). Topics include stormwater plan analysis from Kelly Whiting and John Drybeck (water quality staff), Vasen Farm farmed wetland ratios (1:1 in-basin acreage, 2:1 out-of-basin replacement), enforcement vs. restoration, prior converted designation, Corps of Engineers wetland determinations, 509 overpass,
    TagsACC, Ecology, Environmental Impact Statement, PCHB, Pollution Control Hearings Board, Stormwater, Water QualityFolderBox 08
  • 2000-12-08

    EXH AR049771: Third Runway Project, Borrow Areas 1, 3, and 4 — Projected Impacts to Wetlands (Revised)

    Memorandum from Reese P. Hastings and Michael J. Bailey, P.E., Hart Crowser, Inc. to Ralph Wessels, Port Of Seattle, dated December 8, 2000, quantifying potential impacts to wetland resources from development of Borrow Areas 1, 3, and 4 and an on-site haul route for the Third Runway embankment at Sea-Tac Airport. Document J-4978-62 details 17
    TagsACC, Des Moines Creek, Environmental Impact Statement, Fill Dirt, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 21
  • 2000-12-01

    EXH AR048591: Natural Resource Mitigation Plan, Master Plan Update Improvements, STIA

    Final Natural Resource Mitigation Plan prepared by Parametrix, Inc. for Port Of Seattle, Seattle-Tacoma International Airport Master Plan Update Improvements, December 2000 (AR 048591, project 556-2912-001). Covers wetland delineation and descriptions, Miller Creek Basin, Des Moines Creek Basin, Gilliam Creek, South Aviation Support Area (SASA), runway safety area extensions, South 154th Street relocation, on-site borrow
    TagsACC, Environmental Impact Statement, Master Plan, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac AirportFolderBox 20

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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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