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 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 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
      • 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.

TagWater Quality(53)

Advanced Search Options

  • Dates
  • Media
    • External Articles
    • Images
    • PDFs
    • Video
    • Audio
  • Order By
  • 2003-03-31

    Response to comments: NPDES proposed waste discharge permit no. WA-002465-1, Port Of Seattle, Seattle-Tacoma International Airport

    This document is a public responsiveness summary from Washington State's Department of Ecology regarding an NPDES wastewater discharge permit issued to the Port of Seattle for Seattle-Tacoma International Airport. It compiles and responds to comments received during a March 2003 public meeting and hearing, covering concerns about the airport's treated industrial wastewater, stormwater runoff, and construction runoff discharges. The summary addresses feedback from a range of stakeholders, including the Port of Seattle, local legislators, advocacy groups, and individual residents.
    TagsNPDES, Port Of Seattle, RCAA, Sea-Tac Airport, Stormwater, Water Quality
  • 2003-03-31

    Workshop and public hearing: Port Of Seattle, Seattle-Tacoma International Airport water quality permit reissuance

    The Washington State Department of Ecology held a public workshop and hearing on March 31, 2003, to discuss the proposed reissuance of a water quality permit for Seattle-Tacoma International Airport. The permit covers industrial wastewater discharges to Puget Sound and stormwater runoff to nearby creeks from airport activities such as aircraft maintenance, fueling, washing, and deicing. Written public comments were accepted through April 15, 2003.
    TagsEcology, NPDES, RCAA, Sea-Tac Airport, Stormwater, Water Quality
  • 2002-10-22

    Fact sheet for NPDES Permit WA-002465-1: Seattle-Tacoma International Airport

    This document is a fact sheet accompanying an NPDES (National Pollutant Discharge Elimination System) permit issued to the Port of Seattle for Seattle-Tacoma International Airport, governing how the airport manages and discharges treated industrial wastewater and stormwater. It covers discharge locations into Puget Sound, Des Moines Creek, Miller Creek, and the City of SeaTac storm sewer system, and establishes effluent limitations and monitoring requirements. The permit addresses water quality standards, pollution prevention plans, and compliance schedules to protect surrounding waterways from airport-related contaminants.
    TagsACC, NPDES, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Water Quality
  • 2002-04-09

    Findings of fact, conclusions of law, and order: Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle

    This legal document covers a 2002 Washington State Pollution Control Hearings Board case in which the Airport Communities Coalition and Citizens Against Airport Expansion challenged the water quality certification issued by the Department of Ecology for the construction of a Third Runway at Seattle-Tacoma International Airport. The hearing examined 20 issues related to stormwater management, water quality standards, and whether adequate assurances existed that the runway project would comply with Section 401 of the Clean Water Act. The case involved the Port of Seattle as a respondent and centered on whether proper environmental safeguards were in place before construction could proceed.
    TagsAirport Communities Coalition, Clean Water Act, PCHB, RCAA, Third Runway, Water Quality
  • 2002-01-01

    Third runway? Let’s be clear

    This circa-2002 community advocacy document from the Regional Commission on Airport Affairs opposes construction of a third runway at Seattle-Tacoma International Airport, arguing that the Port of Seattle lacked required environmental permits, had already spent over $300 million, and that the project posed serious risks to local wetlands, fish habitat, and watersheds affecting 150,000 south county residents. The document also highlights a controversial proposal to transport arsenic-laden fill material via a conveyor belt through Des Moines Beach Park and Des Moines Creek to the airport construction site. Residents are urged to contact Port commissioners and local city council members to halt the project.
    CategoriesHistory TagsConveyor, Ecology, Flyer, PCHB, Permitting, RCAA, Water Quality
  • 2001-10-10

    Declaration of Dr. Peter Willing in support of ACC’s sur-reply on motion for stay

    In this 2001 declaration filed before Washington State's Pollution Control Hearings Board, Dr. Peter Willing challenges the Port of Seattle's commitment to improving stormwater management at Sea-Tac Airport. He argues that the Port's pledge to retrofit its stormwater system 'to the extent practicable' is vague, undefined, and falls short of required water quality standards. Dr. Willing also contends that the four best management practices listed in the Port's Stormwater Master Plan are largely inadequate, as most do not go beyond basic King County water quality requirements.
    TagsACC, Airport Communities Coalition, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Water Quality
  • 2001-08-01

    Stormwater Management Manual for Western Washington — Cover Page (August 2001)

    Cover page of the Washington State Department of Ecology Water Quality Program's Stormwater Management Manual for Western Washington, comprising five volumes covering minimum technical requirements, construction stormwater pollution prevention, hydrologic analysis, source control BMPs, and runoff treatment BMPs. Published August 2001, Publication Numbers 99-11 through 99-15, replacing Publication Number 91-75; document bears archive marking AR 053462.
    TagsEcology, Runways, Stormwater, Water Quality
  • 2001-08-01

    Washington State Department of Ecology Stormwater Management Manual for Western Washington — Cover Page (August 2001)

    Cover page of the Washington State Department of Ecology Water Quality Program's Stormwater Management Manual for Western Washington, published August 2001 (Publication Numbers 99-11 through 99-15). The manual comprises five volumes covering minimum technical requirements, construction stormwater pollution prevention, hydrologic analysis, source control BMPs, and runoff treatment BMPs, and carries archive reference number AR 053462.
    TagsRunways, Stormwater, Water Quality
  • 2000-12-14

    Puget Sound Water Quality Management Plan 2000

    The 2000 Puget Sound Water Quality Management Plan, adopted December 14, 2000, outlines coordinated local, state, tribal, and federal actions to restore and protect the health of Puget Sound in Washington State. The plan introduces new programs addressing aquatic nuisance species and Georgia Basin water coordination, while substantially revising existing stormwater, habitat, and wetlands protection programs. It builds on earlier management plans dating back to 1987 and calls for renewed commitment to funding and policy improvements.
    TagsEcology, Environment, Puget Sound, Stormwater, Water Quality
  • 2000-01-01

    Gilliam Creek Stormwater Outfall — Year 2000

    TagsSea-Tac Airport, Stormwater, Water Quality

Posts pagination

Page 1 Page 2 Page 3 Page 4 Page 5 Page 6
Sidebar On/Off

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

    "Samp NTP Final NEPA EA FAA Record of Decision and SEPA Next Steps 10 22 25 Page 01" — , 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