Skip to content
  • STNI
  • Statistics
    • Ops and Passengers
      • King County International Airport (Boeing Field) Annual Operations
    • Financials
    • Aviation fuel uplift in the State of Washington 2018 – 2025
      • Aviation Fuel Tax Revenue in the State of Washington 1983-2025
      • Aviation Fuel Uplift at Sea-Tac Airport
    • Air Quality Monitoring
    • Flight Tracking
      • Flow and Flight Tracks
      • Five Year Comparison
      • Busiest Hours and Days
    • SEL Noise Reports & Graphs
      • About The Permanent Noise Monitors
      • Minutes of Quiet by Noise Monitor
      • Noise Events mapped
      • Noise Events (SEL)
    • 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 SAMP
      • SAMP Public Comment Template
        • Two versions of Appendix K: NEPA/SEPA 2018 vs 2023
      • 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
      • The Sea-Tac Communities Plan
        • Sea-Tac Communities Plan – Planning Maps
      • PSRC Third Runway Decision Process
    • 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.

TagEnvironmental Impact Statement(325)

Advanced Search Options

  • Dates
  • Media
    • External Articles
    • Images
    • PDFs
    • Video
    • Audio
  • Order By
  • 1996-03-27

    Appendix E: Comments Concerning the Final Environmental Impact Statement — Sea-Tac Airport Master Plan Update

    Appendix E contains public comments submitted in response to the Final Environmental Impact Statement (FEIS) for the Seattle-Tacoma International Airport Master Plan Update. Commenters include the Highline Water District, the Washington State Department of Ecology, the U.S. Public Health Service, and the Washington State Department of Natural Resources, raising concerns about groundwater contamination, the handling of aircraft de-icing glycols, storm water runoff, and surface mining permit requirements for borrow sites on Port of Seattle property. The agencies generally called for stronger mitigation measures and clearer answers to environmental questions before approving the proposed airport expansion.
    TagsEIS, Environmental Impact Statement, FAA, Highline Water District, Port Of Seattle, Sea-Tac Airport Master Plan, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final Environmental Impact Statement for proposed Master Plan Update development actions at Seattle-Tacoma International Airport

    This 1996 Final Environmental Impact Statement, prepared jointly by the FAA and the Port of Seattle, evaluates proposed expansion plans at Seattle-Tacoma International Airport through the year 2020, including the construction of a third parallel runway up to 8,500 feet long, a new north terminal, and various landside improvements. The document assesses environmental consequences across 24 categories—including noise, air quality, water quality, and human health—for a range of alternatives, from building a new regional airport to a no-build option. Ultimately, the Port of Seattle selected Alternative 3 as the preferred option, concluding that Sea-Tac was the only feasible site to address the region's growing air transportation needs.
    TagsEIS, Environmental Impact Statement, Third RunwayFolderSTIAMPU-EISStudy TopicsAir Quality, Noise, Socioeconomics, Transportation
  • 1996-02-01

    Final environmental impact statement for proposed master plan update development actions at Seattle-Tacoma International Airport, Volume 2 of 7: Appendices C-F

    This 1996 Final Environmental Impact Statement, prepared by the Port of Seattle and the Federal Aviation Administration, evaluates the environmental effects of proposed development projects at Seattle-Tacoma International Airport, including the construction of a third parallel runway, terminal expansions, and parking improvements planned for completion between 1996 and 2020. The document assesses a range of impacts such as noise, air quality, wetlands, and floodplains affecting surrounding communities. Appendix C specifically addresses noise impacts resulting from the proposed airport expansion alternatives.
    TagsEnvironmental Impact Statement, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final Environmental Impact Statement for proposed master plan update development actions at Seattle-Tacoma International Airport, Volume 3 of 7

    This 1996 Final Environmental Impact Statement, prepared jointly by the FAA and the Port of Seattle, evaluates the environmental effects of proposed expansion and improvement projects at Seattle-Tacoma International Airport, including the construction of a third parallel runway, terminal upgrades, and expanded parking and cargo facilities. The document examines a range of impacts such as wetland disturbance, floodplain encroachment, stream relocation, and noise, water, and air quality effects on surrounding communities. The proposed improvements were planned for completion between 1996 and 2020, with early phases prioritizing the new runway and existing terminal and access enhancements.
    TagsEIS, Environmental Impact Statement, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final environmental impact statement for proposed master plan update development actions at Seattle-Tacoma International Airport, Volume 4 of 7: Appendices Q-A – S

    This 1996 Final Environmental Impact Statement, prepared by the Port of Seattle and the Federal Aviation Administration, evaluates proposed improvements at Seattle-Tacoma International Airport through the year 2020, including the construction of a third parallel runway, terminal expansions, and parking upgrades. The document assesses a range of environmental impacts such as noise, air and water quality, wetlands, and floodplain encroachment resulting from the planned development. It was prepared in compliance with both the National Environmental Policy Act and Washington State Environmental Policy Act.
    TagsEIS, Environmental Impact Statement, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final Environmental Impact Statement for proposed Master Plan Update development actions at Seattle-Tacoma International Airport, Volume 5 of 7, Appendix T

    This 1996 Final Environmental Impact Statement, prepared jointly by the FAA and the Port of Seattle, evaluates proposed development actions at Seattle-Tacoma International Airport as part of a Master Plan Update. Key proposals include building a third parallel runway up to 8,500 feet long, extending an existing runway, improving passenger terminals, and expanding cargo and support facilities. The document assesses potential environmental impacts such as noise, wetland disruption, air and water quality changes, and floodplain encroachment associated with these planned improvements through the year 2020.
    TagsEIS, Environmental Impact Statement, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final Environmental Impact Statement for proposed Master Plan Update development actions at Seattle-Tacoma International Airport, Volume 6 of 7, Appendix T: Public comments

    This document is Volume 6 of the Final Environmental Impact Statement for the proposed Master Plan Update at Seattle-Tacoma International Airport, published in February 1996. It covers planned airport improvements from 1996 to 2020, including the construction of a third parallel runway, terminal expansions, and parking upgrades, while assessing impacts on noise, air quality, wetlands, and surrounding communities. The appendix compiles public hearing transcripts and approximately 250 written comments submitted in response to the Draft EIS, addressing key concerns such as aircraft noise, air pollution, and surface transportation impacts.
    TagsEIS, Environmental Impact Statement, Third RunwayFolderSTIAMPU-EIS
  • 1996-02-01

    Final Environmental Impact Statement for proposed Master Plan Update development actions at Seattle-Tacoma International Airport, Volume 7 of 7, Appendix T

    This 1996 Final Environmental Impact Statement (EIS), prepared by the FAA and Port of Seattle, evaluates the environmental effects of proposed expansion plans at Seattle-Tacoma International Airport, including construction of a third parallel runway, terminal upgrades, and parking improvements planned through 2020. The document addresses key community concerns such as aircraft noise, air quality, surface traffic, and impacts on wetlands and floodplains. It includes transcripts and written comments from two public hearings held in June 1995, attended by community members and agencies who raised significant concerns about noise, health, and environmental impacts.
    TagsEnvironmental Impact Statement, FAA, Port Of Seattle, public hearing, Sea-Tac Airport Master PlanFolderSTIAMPU-EIS
  • 1996-02-01

    EXH AR038744: Final Environmental Impact Statement for Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport, Volume 1 of 7

    Final Environmental Impact Statement (EIS) prepared jointly by the Federal Aviation Administration (FAA) Northwest Mountain Region and the Port of Seattle for the Seattle-Tacoma International Airport (Sea-Tac) Master Plan Update, dated February 1996, AR038744. Covers proposed development actions 1996-2020 including a new third parallel runway (Runway 16X/34X) up to 8,500 feet long separated 2,500 feet
    TagsACC, Environmental Impact Statement, FAA, NEPA, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master PlanFolderBox 16
  • 1995-12-14

    Exhibit 201: Ecology Delegation of Authority — Tom Luster, Section 401 Certifications and CZM Consistency Determinations

    These three pages from the Washington State Department of Ecology document the delegation of signature authority to staff member Tom Luster, allowing him to issue routine Section 401 water quality certifications, Coastal Zone Management consistency determinations, and related administrative orders. Originally signed by Director Mary Riveland in December 1995, the authority was reaffirmed by Director Tom Fitzsimmons in February 1997. The delegation includes a succession of authority chain to ensure continuity if Luster is absent or leaves his position.
    TagsACC, Ecology, Environmental Impact Statement, PCHB, Pollution Control Hearings Board, RCW, WACFolderBox 08

Posts pagination

Page 1 … Page 28 Page 29 Page 30 Page 31 Page 32 Page 33
Sidebar On/Off

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...]


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!

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...

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

    "2024 NF Nighttime NAP Green JPG_0" — , 2025

  • 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