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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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  • 2002-10-25

    EXH AR028014: Wetland and Stream Impacts in the Miller Creek Basin — Sea-Tac Airport Third Runway Project Map

    AR028014. Port of Seattle biological assessment map depicting wetland and stream impacts in the Miller Creek Basin related to the Seattle-Tacoma International Airport Third Runway project. Shows delineated wetlands verified by Army Corps of Engineers (ACOE), wetlands not verified by ACOE, creeks, boundary of acquisition area, third runway and interconnecting taxiways, third runway embankment and
    TagsACC, Environmental Impact Statement, Map, Miller Creek, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 10
  • 2002-10-23

    EXH AR028386: Potential Mitigation Sites Evaluated in the Miller Creek and Des Moines Creek Watersheds

    Map (AR 028386, PARA 0013189) showing potential mitigation sites evaluated in the Miller Creek and Des Moines Creek watersheds near Sea-Tac Airport. Displays numbered mitigation sites greater than 10 acres, airport runways (present and proposed 3rd runway), borrow/warehouse/parking/SABA areas, watershed boundaries, Puget Sound shoreline, Burien, Normandy Park, SeaTac, Angle Lake, Bow Lake, Burien Lake, Lake
    TagsACC, Des Moines Creek, Map, Miller Creek, Pollution Control Hearings Board, Sea-Tac Airport, Third RunwayFolderBox 10
  • 2002-10-23

    EXH AR037231: Sea-Tac Airport Area Map Showing SDS-1, SDS-3, SDS-4, SDE-4 Site Designations

    Aerial map exhibit AR037231 showing site designation zones SDS-1, SDS-3, SDS-4, and SDE-4 in the Sea-Tac Airport vicinity, with DMC markers and parcel 1027 visible. Map includes hatched overlay areas indicating site boundaries and land use zones near Des Moines Creek and surrounding neighborhoods. Filed as exhibit in administrative record.
    TagsACC, Des Moines Creek, Map, Pollution Control Hearings Board, Sea-Tac Airport, STCPFolderBox 15
  • 2002-10-22

    EXH AR027679: King County Water Rights Records — Priority Date Listing

    Administrative Record AR027679–AR027681 comprising a multi-page tabular listing of water rights records in King County (WRIA Code 9), spanning priority dates from 1930 to 1958. Records identify control numbers, business/person names, type/status (CE, PE/CAN, AP/REJ, CE/RLQ), priority dates, acreage, quantities (Qi), purposes (IR, DS, MU, ST, FR, PO, DM), and water sources including Green River,
    TagsACC, King County, Map, Pollution Control Hearings Board, RCW, Water QualityFolderBox 10
  • 2002-10-22

    EXH AR035006: Draft Map — Restrictive Covenants on West Side of Seattle-Tacoma International Airport (Northern Map)

    Draft map AR035006 showing restrictive covenants on the west side of Seattle-Tacoma International Airport (northern section). Features include Relocated Miller Creek, Lora Lake, Miller Creek/Lora Lake/Vacca Farm Wetland and Floodplain Mitigation Area, Miller Creek Mitigation Area, Toe of Fill boundaries, Relocated S. 154th Place, and multiple 60-foot ROW designations (30 feet each side from center
    TagsACC, Lora Lake, Map, Miller Creek, Pollution Control Hearings Board, Sea-Tac Airport, STCPFolderBox 14
  • 2002-10-22

    EXH AR1015: Restrictive Covenants on South End of Seattle-Tacoma International Airport — Draft Map

    Draft map (AR 035005, Exhibit 1015) showing restrictive covenant boundaries, sewer line easements, IWS line, Des Moines Creek, and surveyed OHWM on the south end of Seattle-Tacoma International Airport. Identifies the Tyee Valley Golf Course Mitigation Area and Des Moines Creek Mitigation Area, with a note that mitigation was required by the Washington State Department
    TagsACC, Army Corp of Engineers, Des Moines Creek, Ecology, Map, Pollution Control Hearings Board, Sea-Tac AirportFolderBox 14
  • 2002-10-21

    EXH AR019497: Figure 4-1 Current Fish Use Des Moines, Miller & Walker Creek Basins

    This figure from the Sea-Tac Airport Stormwater Management Plan maps current fish habitat in the Des Moines Creek, Miller Creek, and Walker Creek watersheds near Sea-Tac Airport. It identifies the fish species present in various streams and lakes in the area, including Coho, Cutthroat, Steelhead, Chum, Chinook, Bull Trout, and Pumpkinseed Sunfish. The map also highlights piped stream segments and areas of potential Chinook and Bull Trout habitat within these interconnected watershed basins adjacent to Puget Sound.
    TagsACC, Des Moines Creek, Map, Miller Creek, Pollution Control Hearings Board, Sea-Tac Airport, StormwaterFolderBox 08
  • 2002-05-01

    EXH AR019096: Figure 2.1-3 — Wetlands Des Moines Creek Basin Near STIA

    This figure (2.1-3) is a map showing wetlands located in the Des Moines Creek Basin near Seattle-Tacoma International Airport (STIA). It identifies delineated wetlands verified by the Army Corps of Engineers (ACOE), water features, streams, and piped streams across the area, with individual wetlands labeled by alphanumeric codes. The map was submitted as part of a supplemental natural resources mitigation plan related to airport development activities in the region.
    TagsACC, Bow Lake, Des Moines Creek, Map, Pollution Control Hearings Board, Third RunwayFolderBox 08
  • 2002-03-05

    EXH AR037219: Draft Map — Wetlands Near Seattle-Tacoma International Airport (Northern Map)

    Draft figure (AR 037219) prepared by Parametrix, Inc. on March 5, 2002, mapping wetlands near Seattle-Tacoma International Airport (northern section) at scale 1:2400. Shows surveyed wetland boundaries, estimated wetland boundaries, other estimated or unverified wetlands outside project area, parcel boundaries, temporary impacts, and permanent impacts. Elevation points marked at 335.5, 335.3, 324.4. Administrative Record number
    TagsACC, Environmental Impact Statement, Map, Pollution Control Hearings Board, SAMP, Sea-Tac AirportFolderBox 15
  • 2002-03-05

    EXH AR037220: Draft Figure 2 — Wetlands Near the Seattle-Tacoma International Airport (Southern Map)

    AR037220 draft wetland map (Figure 2, Southern Map) prepared by Parametrix, Inc., dated March 05, 2002, depicting wetlands near Seattle-Tacoma International Airport. Map shows surveyed wetland boundaries, estimated wetland boundaries, SASA boundaries, temporary and permanent impact boundaries, and wetlands outside project area at scale 1:2400. Includes elevation data points and wetland delineation markers across the
    TagsACC, Environmental Impact Statement, Map, Pollution Control Hearings Board, SAMP, Sea-Tac AirportFolderBox 15

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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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