Skip to content
  • STNI
  • Statistics
    • Ops and Passengers
    • Financials
    • Air Quality Monitoring
    • Flight Tracking
      • Flow and Flight Tracks
      • Five Year Comparison
      • Busiest Hours and Days
    • SEL Noise Reports & Graphs
      • Noise Events mapped
      • Noise Events (SEL)
        • About The Permanent Noise Monitors
    • Runways
    • Employees
    • Real Estate
      • Port Properties and Trees mapped
    • Parking
  • Events
  • Protest
    • Regular Events
    • Legislation 2026
    • Complain about a particular flight
    • Advocacy Organizations
    • Media Outlets
    • People
    • The Port of Seattle
      • Commission Meetings
      • Public Records Requests
      • StART
      • Highline Forum
    • Contact Your Electeds
  • Resources
    • FAQs
      • FAA Occurrences/Accidents/Indents
    • The unSustainable Airport Master Plan
      • SAMP NTP: 31 projects by the numbers
      • SEPA Draft EIS (2026)
      • SAMP Record of Decision/FONSI (2025)
      • SAMP Draft EA (October 2024)
      • 2018 Scoping
    • Port Packages
      • Port Package Property Costs
      • Port Packages mapped
      • The Port Package Explainer
      • So you want a (first-time) Port Package? Start here
      • Port Package Looker Upper
      • How do I determine if I have a Port Package or Avigation Easement?
      • Progress on Port Package Update legislation
      • Having a Port Package Problem?
      • Port Package Site Visit Follow-Up
    • Document Library
    • Explainers
      • The Airport Law Cheat Sheet
      • The Grant Explainer
    • External Articles
    • History
      • Timeline
    • Studies
    • Videos
  • Stories
  • Mission
  • Subscribe
  • Contact
Scroll down to content

Get InformedStay Informedx

I understand that you will never share my information with anyone, you will only use it to keep me updated on relevant events and that I may unsubscribe at any time.

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.

TagEPA(36)

Advanced Search Options

  • Dates
  • Media
    • External Articles
    • Images
    • PDFs
    • Video
    • Audio
  • Order By
  • 1970-12-31

    42 USC Chapter 85, Subchapter II, Part B: Aircraft Emission Standards

    ★
    42 USC CHAPTER 85, SUBCHAPTER II, Part B: Aircraft Emission Standards Current 2024 Main Ed. (1/6/2025) [Titles 1 through 41] 2018 Ed. and Supplement V (1/3/2024) 2018 Ed. and Supplement IV (1/5/2023) 2018 Ed. and Supplement III (1/3/2022) 2018 Ed. and Supplement II (1/13/2021) 2018 Ed. and Supplement I (1/24/2020) 2018 Main Ed. (1/14/2019) 2012
    CategoriesFrom The Web, Key Documents, Legislation TagsAviation Emissions, Clean Air Act, Code of Federal Regulations, EPA, Legislation
  • Hk opengraph 1
    2026-07-02

    Holland & Knight EPA Proposes UCMR 6 for PFAS and Other Contaminants, Declines Adding Microplastics

    Sea-Tac Airport sits at the intersection of several PFAS risk factors that make the UCMR 6 proposal especially significant for surrounding communities. Airports are **among the highest-risk PFAS contamination sites** in the country. Sea-Tac has historically used AFFF for fire suppression training and emergency response - AFFF contains high concentrations of PFOS and PFOA, the most well-studied PFAS compounds - These chemicals **migrate readily into groundwater** and do not break down naturally./ - The airport sits on a **glacial outwash plain** with highly permeable soils - This geology **accelerates PFAS movement** into groundwater - Surrounding communities including **Burien, Des Moines, SeaTac city, and Tukwila** draw from regional water systems potentially affected - The **Highline Water District** and other local providers serve these communities
    CategoriesFrom The Web TagsEPA, Holland & Knight, PFAS
  • 2026-04-02

    EPA Boosts Biofuel Mandates in Final Renewable Fuel Standard Rule for 2026-2027

    Highlights The U.S. Environmental Protection Agency (EPA) has finalized a rule setting record-high levels for U.S. blending of biofuels. EPA estimates the rule will require a 60 percent increase of biodiesel and renewable diesel production and use compared to 2025 levels. This Holland & Knight alert summarizes policy changes in the final rule and their
    CategoriesFrom The Web TagsAirline Industry, Environment, EPA, Holland & Knight, Sustainable Aviation Fuels
  • 2026-03-04

    Lower Duwamish Waterway Superfund Settlement Summary

    Settlement Resources Press Release Lower Duwamish Consent Decree (pdf) (10.95 MB) Lower Duwamish Complaint (pdf) (192.55 KB)On March 4, 2026, the U.S. Environmental Protection Agency (EPA), U.S. Department of Justice (DOJ) and the state of Washington, reached a settlement agreement with more than 100 potentially responsible parties to address hazardous substances released into the Lower
    CategoriesFrom The Web TagsBoeing, Duwamish River, EPA, Port Of Seattle, Superfund
  • Ejscreen

    EJScreen Environmental Justice Screening and Mapping Tool (Version 2.3)

    This is an 1unofficial copy of EJScreen hosted by the Public Environmental Data Partners. Some links and text may incorrectly suggest that this site is affiliated with the US Government. The EJScreen Tool was an EPA web application taken down in January of 2025 as part of Executive Order 14151. It was described as “an
    CategoriesFrom The Web TagsEJScreen, Environmental Justice, EPA, Executive Orders, Map
  • Trump Epa Rollbacks Evan Zucci
    2026-02-12

    Trump’s EPA Rollbacks Will Reverberate for ‘Decades’

    The EPA’s repeal of a cornerstone climate rule is part of an aggressive agenda whose effects will outlast the president President Donald Trump is shrinking the Environmental Protection Agency more quickly and aggressively than ever before, culminating in last week’s move to rescind the crucial “endangerment finding” underpinning key regulations of planet-warming pollution. And unlike
    CategoriesFrom The Web TagsBloomberg, EJScreen, EPA
  • 2026-01-28

    EPA Advances Cooperative Federalism to Improve Air Quality by Taking an Important Step to Reconsider Biden-era “Good Neighbor Plan”

    Agency Proposes to Approve State Implementation Plans for Eight States January 28, 2026 Contact Information EPA Press Office (press@epa.gov) WASHINGTON – On January 27, 2026, the U.S. Environmental Protection Agency (EPA) proposed phase 1 of its reconsideration of the deeply flawed Biden-era “Good Neighbor Plan.” Under phase 1, the agency is proposing to approve eight
    CategoriesFrom The Web TagsEPA, NAAQS
  • Powerplants Socialfeature 1
    2025-11-25

    EPA asks court to strike down fine particulate air pollution standard, threatening public health and undermining obligation under Clean Air Act

    WASHINGTON – The U.S. Environmental Protection Agency (EPA) filed a motion for vacatur in the Court of Appeals for the D.C. Circuit, asking the court to strike down the health-based fine particulate matter (PM2.5) standard the agency had strengthened last year. Kentucky V EPA Motion Vacatur “EPA’s motion is a blatant attempt to avoid legal
    CategoriesFrom The Web TagsClean Air Act, Clean Air Task Force, EPA, NAAQS
  • 2025-07-29

    In a Game-Changing Climate Rollback, E.P.A. Aims to Kill a Bedrock Scientific Finding

    If upheld in court, the repeal would make it almost impossible for future administrations to rein in greenhouse gases. By Maxine Joselow and Lisa Friedman Reporting from Washington July 29, 2025Updated 3:19 p.m. ET Lee Zeldin, the administrator of the Environmental Protection Agency, said on Tuesday the Trump administration would revoke the scientific determination that
    CategoriesFrom The Web, News Stories TagsEPA, New York Times
  • Guidance Leaflet PFOA in Fire-Fighting Foams 65203287-PFOA-EPA-Factsheet-Final

    TagsEPA, PFAS

Posts pagination

Page 1 Page 2 Page 3 Page 4
Sidebar On/Off

Upcoming Events

  • Joint Des Moines and Burien Airport Committee Meeting
    Add to CalendarMMonday Jul 13: 4:00pm
    21630 11th Avenue S, Suite C,
    July 13 2026 joint des moines and burien airport committee meeting agenda packet pdf

    Agenda Item: 2026 Aviation Noise & Emissions Symposium Summary Document Link

    [...]
  • Rep. Adam Smith Aviation Forum
    Add to CalendarMSaturday Jul 18, 1:00pm - 2:00pm
    2400 S. 240th St,
    Event image 1

    From the Office of Congressman Adam Smith: Highline College (Building 8, Mt. Townsend Room)Des Moines, WA Saturday, July 18 • 1 PM – 2 PM Join Rep. Adam Smith for an Aviation Forum. Attendees will have questions and concerns about aviation noise and emissions. RSVP today! Representative Adam Smith is hosting an aviation forum with

    [...]

[See all...]


Help study childhood asthma. Get free HEPA filter!

read more...

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!

A report examining the barriers to implementing sustainable aviation fuel (SAF) in Massachusetts, authored by Neil Rasmussen and Chuck Collins from the Institute for Policy Studies. The report analyzes challenges and obstacles facing SAF adoption in the state.
continue...

The Podcast!

Subscribe to the only podcast devoted to policies, politics, history, impacts for people living under the flight path everywhere. It’s definitely not just about noise!
  • Sea-Tac Noise.Info
  • Connect with STNI

    • Subscribe
    • Port Package Problem?
    • Donate
    • Podcast
    • Socials
      • Facebook
      • X (Twitter)
      • Bluesky
      • Instagram

    "Des Moines Creek West Aerial showing WSDOT surplus parcel" — , 2024

  • Learn

    • Frequently Asked Questions
    • Explainers
    • Youtube
    • Research Requests
    • Make a complaint
  • Goals

    Fulfill the promises of 1976:
    • Compensation
    • Reduced noise
    • Improved air quality
    • Environmental remediation
Login/Register
©2026•Data Privacy

Message

We use cookies to provide basic functionality. We also provide access to search engines in order to provide site analytics. We do not sell or share your data.
V V