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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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  • Exterior antenna/sensor mast mounted on metal building wall

    A galvanized steel mast with cross-bracing and guy wires is mounted on the exterior wall of a corrugated metal building, with what appears to be monitoring equipment (possibly acoustic or meteorological sensors) at the top. Gray electrical enclosures are visible at the base of the installation.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset Park
  • Electrical conduit installation at metal building exterior

    Exterior electrical installation showing EMT conduit runs supported by green conduit supports on gravel, connecting to a junction box and terminating at a service panel labeled 'Main Service Shut Off, 100A 120/240V 1-Phase.' A bare copper grounding conductor runs along the building's corrugated metal wall.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset Park
  • PSCAA Sunset Park Air Quality Monitoring Site — April 11, 2025 (8:33 PM)

    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset Park
  • Sunset Park – King County Parks entrance sign

    The blue entrance sign for Sunset Park, administered by King County Parks, is mounted on wooden posts along a roadway. A smaller line on the sign reads 'Park Entrance' with a directional arrow; a metal bench is visible to the left. Sunset Park is located near the Sea-Tac Airport noise-impact area in King County, Washington.
    TagsKing County, North Sea-Tac Park, NSTP, PSCAA, Sunset Park
  • SeaTac BMX Facility Entrance, 136th Street

    Entrance to the SeaTac BMX facility, showing the facility's branded monument sign and teal entry structure. The location is at a dead-end intersection on 136th Street, with chain-link fencing, a small clubhouse building, and informational signage visible on the grounds.
    TagsKing County, North Sea-Tac Park, NSTP
  • PSCAA North Sea-Tac Park Air Quality Monitoring Site — November 27, 2024, 22:28:31

    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA
  • PSCAA North Sea-Tac Park Air Quality Monitoring Site — November 27, 2024, 22:19:31

    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA
  • PSCAA North Sea-Tac Park Air Quality Monitoring Site — November 27, 2024, 22:28:51

    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA
  • 2024-08-15

    Tub Lake / Sunset Park site hazard assessment report

    The Tub Lake/Sunset Park site in SeaTac, located one mile north of Seattle-Tacoma International Airport, was contaminated by decades of illegal dumping of waste oil and bilge oil from ships between 1941 and 1945, as well as leaking underground storage tanks at a King County road maintenance facility. Environmental sampling conducted in 1990 detected petroleum hydrocarbons, benzene, and other chemicals exceeding cleanup standards in soil, sediment, and water, with contamination estimated to cover 2-3 acres up to 12 feet deep beneath nearby playing fields. The Port of Seattle, which owns the southern wetlands portion of the site including Tub Lake, fenced the area in the 1970s after demolishing residences in the airport's landing pathway, though public access and ongoing contamination remained concerns at the time of the assessment.
    TagsEcology, King County, Miller Creek, MTCA, North Sea-Tac Park, NSTP, Sunset Park
  • 2024-08-13

    SeaTac City Council Special Meeting: the future of North Sea-Tac Park

    55 or 200 Acres? There’s a lot more to this story The SeaTac City Council held a ninety minute Special Meeting (Agenda/Presentation) to discuss various options in purchasing the area known as North SeaTac Park, which is now (mostly) owned by the Port of Seattle. As Councilmember Peter Kwon mentioned at the beginning of the
    CategoriesMeetings TagsNSTP

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
    Zoom (Virtual Meeting)
    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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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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