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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.

TagPSCAA(91)

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  • 2025-09-15

    Puget Sound Clean Air Agency Monitoring Site Tour: Agenda and Overview

    This document presents materials from a Puget Sound Clean Air Agency Monitoring Site Tour held in September 2025, covering the agency's mission to protect air quality across King, Pierce, Snohomish, and Kitsap counties. It outlines key programs including climate action planning, wood stove replacement, and diesel emissions reduction, with a focus on fine particulate matter (PM2.5), which accounts for 90% of cardiac and respiratory health risk from air pollution in the region. Note: this document relates to regional air quality monitoring and does not contain information about Sea-Tac Airport noise policy.
    TagsAir Quality Monitors, community engagement, PM25, PSCAA, Ultrafine Particulates
  • 2025-06-01

    2025 Ambient Air Monitoring Network Plan

    A network plan for ambient air monitoring by the Air Quality Program of the Washington State Department of Ecology. The document outlines contact information, regional office structure, and accessibility policies for the department’s air quality monitoring initiatives.
    TagsAir Quality Monitors, Ecology, PSCAA, State of Washington, Washington State Department Of Health
  • 2025-05-14

    Puget Sound Clean Air Agency Advisory Council Meeting Agenda and Minutes — May 14, 2025

    This document contains meeting materials for the Puget Sound Clean Air Agency's Advisory Council, including an agenda for their May 14, 2025 virtual meeting and minutes from their March 12, 2025 hybrid meeting in Seattle. The May agenda covers topics such as community engagement events, strategic plan updates, and alternatives to outdoor burning. Note that this document relates to regional air quality governance and does not contain content specifically pertaining to Sea-Tac Airport noise policy.
    CategoriesMeetings TagsAdvisory Committees, community engagement, PSCAA, strategic plan
  • 2025-05-14

    Puget Sound Clean Air Agency Advisory Council Meeting Agenda and Minutes — May 14, 2025

    Agenda and March 12, 2025 meeting minutes for the Puget Sound Clean Air Agency (PSCAA) Advisory Council regular meeting held May 14, 2025. Agenda items include: incorporating feedback from the Advisory Council retreat, CCAP Objective 1.4 recap of community engagement events, Strategic Plan Second Annual Report Update, and Strategic Plan Objective 1.6 Reasonable Alternatives to
    CategoriesMeetings TagsAdvisory Committees, community engagement, PSCAA, strategic plan
  • PSCAA 10th and Weller Air Quality Monitoring Site — May 6, 2025, 22:02:51

    TagsAir Quality Monitors, King County, PSCAA
  • PSCAA 10th and Weller Air Quality Monitoring Site — May 6, 2025, 22:01:17

    TagsAir Quality Monitors, King County, PSCAA
  • Air Monitoring Station near Sea-Tac Airport

    A secured air monitoring station enclosure surrounded by a black chain-link fence topped with razor wire. A sign on the building reads 'Air Monitoring Station,' consistent with environmental air quality monitoring infrastructure typically operated by agencies such as Puget Sound Clean Air Agency near high-traffic or airport zones.
    TagsAir Quality Monitors, PSCAA
  • Secured equipment enclosure with razor wire fencing near roadway

    A chain-link fence topped with razor/concertina wire encloses what appears to be utility or communications equipment cabinets, with multiple antennas or sensor masts visible above. The installation is located adjacent to a roadway with a wooded hillside visible in the background, consistent with infrastructure monitoring or navigation equipment near an airport environment.
    TagsAir Quality Monitors, PSCAA
  • Seattle 1st & Weller Air Monitoring Station

    A chain-link fence with razor wire surrounds a monitoring station enclosure bearing two posted signs. The right sign clearly reads 'Seattle 1st & Weller Air Monitoring Station' and includes logos from Washington State Department of Ecology, EPA Clean Air, and SEPA; the left sign appears to be a multilingual (Vietnamese and Chinese) version of the same information.
    TagsAir Quality Monitors, PSCAA
  • Sound Transit Air Quality Monitoring Station, Seattle

    A Sound Transit air quality monitoring station enclosure, visible behind a chain-link security fence. A sign on the enclosure reads 'Sound Transit Air Monitoring Station,' and in the background the distinctive roof structure of Lumen Field (Seattle Seahawks/Sounders stadium) is visible, placing this installation in the SoDo/Stadium District area of Seattle.
    TagsAir Quality Monitors, PSCAA

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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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Help study childhood asthma. Get free HEPA filter!

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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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