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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.

TagEnvironment(193)

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  • Pxl july 30, 2026 202602376
    2026-07-30

    Auburn Wetland Boardwalk Trail — July 30, 2026, 20:26:02

    TagsAuburn Wetland, City of Auburn, Environment, Port Of SeattleFolderAuburn Wetland
  • Pxl july 30, 2026 202648865
    2026-07-30

    Auburn Wetland Nature Trail Path and Informational Kiosk

    A paved gravel path flanked by wooden split-rail fences curves through dense green vegetation toward a visible informational signboard or kiosk in the background. The setting appears to be a public nature trail or park access path on a clear sunny day.
    TagsAuburn Wetland, City of Auburn, Environment, Parks, Port Of Seattle, Sea-Tac AirportFolderAuburn Wetland
  • Pxl july 30, 2026 202702103
    2026-07-30

    Walking on Water Wetland Boardwalk Trail — Information Kiosk and Trail Map Sign

    An information kiosk at the entrance of the 'Walking on Water Wetland Boardwalk Trail' shows a trail map, park highlights, and interpretive content. The wooden boardwalk trail and surrounding wetland forest vegetation are visible behind the sign.
    TagsAuburn Wetland, City of Auburn, Environment, Parks, Port Of SeattleFolderAuburn Wetland
  • Pxl july 30, 2026 202711526
    2026-07-30

    Walking on Water Wetland Boardwalk Trail Sign at Auburn Environmental Park

    An information kiosk at Auburn Environmental Park (Auburn, Washington) displays a sign titled 'Walking on Water – Wetland Boardwalk Trail,' including a trail map, map legend, trail information, and park highlights. The sign bears the City of Auburn logo and describes the wetland boardwalk that allows visitors to experience the park's wetland ecosystem.
    TagsAuburn Wetland, City of Auburn, Environment, Parks, Port Of SeattleFolderAuburn Wetland
  • June 24, 2026 img 0710 1500x844 web
    2026-06-23

    Port of Seattle Awards Record $850K for Community-led Environmental Improvements

    June 24, 2026 This press release is available in 11 languages: Amharic, Dari, French, Korean, Russian, Simplified Chinese, Somali, Spanish, Tagalog, Ukrainian, and Vietnamese. በአማርኛ አንብብ (PDF) Af -Soomaali ku akhri (PDF) به زبان دری بخوانید (PDF) Leer en español (PDF) Lire en français (PDF) Basahin sa Tagalog (PDF) 한국어로 읽기 (PDF) Читайте українською (PDF)
    CategoriesFrom The Web TagsCity of Burien, City Of Des Moines, community engagement, Environment, Port Of Seattle, Port Of Seattle Commission
  • Event image
    2026-06-20

    2026 SoilSHOP Series – Des Moines

    By King Conservation District Midway CovenantDes Moines, WA Saturday, June 20 • 10 AM – 2 PM Overview Join us for free lead and arsenic soil testing at our SoilSHOP event at Midway Covenant in Des Moines! Puget Sound has a rich history of land and industry – but industrial practices from long ago may
    CategoriesEvents TagsArsenic, Des Moines, Environment, Health, King Conservation District
  • EPA forever chemicals 40165
    2026-05-18

    EPA to roll back PFAS limits for drinking water

    The Trump administration on Monday proposed rolling back limits on “forever chemicals” that contaminate millions of Americans’ drinking water and have been linked to a range of health problems. The proposal would partially rescind the first national drinking water limits for the chemicals — also known as per- and polyfluoroalkyl substances, or PFAS — set
    CategoriesFrom The Web, News Stories TagsEnvironment, Health, PFAS, Politico
  • Ecylogo news card 630
    2026-05-12

    State penalizes four organizations over $19,000 for fuel tank back fees at King County International Airport

      Department of Ecology News Release – May 13, 2026 SEATTLE  – After failing to pay a decade’s worth of back fees related to their underground storage tanks supplying King County International Airport – Boeing Field, Signature Aviation, Shultz, Inc., Sky Services, and King County have been penalized $19,681 by the Washington Department of Ecology. The
    CategoriesFrom The Web TagsAviation Fuel, Environment, KCIA, King County, pollution
  • 634447191 26140442278976531 5191433782839792025 n
    2026-05-08

    It All Adds Up Sea Change – Deploying Underwater Tech To Study How Noise Affects Marine Life

    A Port of Seattle promotional image featuring a dolphin or orca dorsal fin breaking the surface of calm water, with mountains visible in the background. The image promotes the Port's deployment of underwater technology to study how noise affects marine life, under their 'It All Adds Up Sea Change' environmental initiative.
    TagsEnvironment, Marine, Noise, Port Of SeattleFolderMarine
  • Holland Knight Logo
    2026-04-16

    New York’s Expanding Environmental Regulatory Framework: A 2026 Outlook

    Highlights Monitoring plan deadlines under New York’s mandatory greenhouse gas (GHG) reporting program (Part 253) begin September 1, 2026, with first emissions data reports due June 1, 2027. The New York State Department of Environmental Conservation’s (NYSDEC) 2026 Regulatory Agenda signals additional rulemakings ahead, including a potential statewide GHG emissions reduction program. NYSDEC finalized significant
    CategoriesFrom The Web TagsEnvironment, Holland & Knight, NEPA, Newsletter, PFAS

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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.
read more...

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.
continue...

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