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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.

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  • 2002-10-21

    EXH 296: Declaration Paul S. Fendt — Stormwater Mgmt & Low Flow Mitigation, PCHB 01-133

    This declaration by stormwater engineer Paul S. Fendt, filed in a Washington State Pollution Control Hearings Board case, explains how Sea-Tac International Airport's Master Plan Update will increase impervious surfaces and alter stormwater runoff into Miller, Walker, and Des Moines Creeks. The document outlines mitigation measures, including 344.1 acre-feet of new detention storage and controlled low-flow water releases, to offset increased peak flows and reduced summer stream flows caused by airport expansion. It provides technical background on the affected watersheds and the Port of Seattle's stormwater management strategy.
    TagsACC, Des Moines Creek, Miller Creek, PCHB, Pollution Control Hearings Board, Port Of Seattle, StormwaterFolderBox 09
  • 2002-10-21

    EXH AR015776: Prefiled Testimony of Michael Bailey, P.E. — ACC and CASE v. Ecology and Port Of Seattle, PCHB No. 01-160

    Prefiled testimony of Michael Bailey, P.E. submitted in Pollution Control Hearings Board case PCHB No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of Seattle. Testimony covers design and engineering of embankment and Mechanically Stabilized Earth (MSE) walls at Sea-Tac Airport, seismic basis
    TagsACC, CASE, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015761: Direct Testimony of Chung Ki Yee on Behalf of Ecology — PCHB No. 01-160, ACC and CASE v. Ecology and Port Of Seattle

    Direct testimony of Chung Ki Yee, Environmental Engineer 3 in the Washington State Department of Ecology Toxics Cleanup Program, submitted in PCHB No. 01-160 before the Pollution Control Hearings Board. Yee was asked by Kevin Fitzpatrick of the Northwest Regional Office Water Quality Program (NWRO/WQ) in June 2001 to develop fill criteria for Port Of
    TagsACC, CASE, Model Toxics Control Act, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 07
  • 2002-10-21

    EXH AR015746: Direct Testimony of Kelly Whiting on Behalf of Ecology — PCHB No. 01-160 (ACC and CASE v. Ecology and Port Of Seattle)

    Direct testimony of Kelly Whiting, Engineer III at King County Department of Natural Resources and Parks, submitted on behalf of the Washington State Department of Ecology in PCHB Case No. 01-160. Appellants are Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE); respondents are Ecology and Port Of Seattle. Whiting reviewed the Port of
    TagsACC, CASE, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, StormwaterFolderBox 07
  • 2002-10-21

    EXH AR015729: Direct Testimony of Gordon White on Behalf of Ecology — PCHB No. 01-160 (ACC v. Ecology and Port Of Seattle)

    Direct testimony of Gordon White, Program Manager for the Shorelands and Environmental Assistance (SEA) program at the Washington State Department of Ecology, submitted in PCHB No. 01-160 before the Pollution Control Hearings Board, State of Washington. Appellants are Airport Communities Coalition and Citizens Against Sea-Tac Expansion (CASE) versus respondents State of Washington Department of Ecology
    TagsACC, Airport Communities Coalition, CASE, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015720: Direct Testimony of Ching-Pi Wang on Behalf of Ecology — PCHB No. 01-160

    Direct testimony of Ching-Pi Wang, Environmental Engineer 4 in the Toxics Cleanup Program, Northwest Regional Office, Department of Ecology, Bellevue, Washington, submitted before the Pollution Control Hearings Board (PCHB No. 01-160) in the matter of Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of
    TagsACC, CASE, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 07
  • 2002-10-21

    EXH AR015700: Direct Testimony of Katie Walter on Behalf of Ecology — PCHB No. 01-160 (ACC v. Ecology & Port Of Seattle)

    Direct testimony of Katie Walter, senior principal wetland scientist at Shannon & Wilson, Inc., submitted on behalf of the Washington State Department of Ecology in PCHB No. 01-160, Airport Communities Coalition and Citizens Against Sea-Tac Expansion v. State of Washington Department of Ecology and Port Of Seattle. Walter reviews the Port Of Seattle’s Natural Resources
    TagsACC, CASE, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 07
  • 2002-10-20

    EXH AR019658: Third Runway Soil Fill Quality Criteria

    This document outlines the Port of Seattle's soil fill quality criteria for the first phase of construction of a new runway embankment, involving approximately 820,000 cubic yards of material placed in 1998. It details the approved sources for fill material, technical specifications for soil gradation and contamination standards, and the certification and monitoring processes required of contractors. Independent soil technicians and Port consultants were tasked with overseeing material delivery, placement, and compliance testing throughout the project.
    TagsACC, Construction, Fill Dirt, MTCA, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 09
  • 2002-10-20

    EXH AR014581: Pre-Filed Testimony of Sally Nelson on Behalf of ACC — PCHB No. 01-160

    Pre-filed testimony of Sally Nelson, Burien City Council member and former Mayor, submitted on behalf of appellant Airport Communities Coalition (ACC) in PCHB No. 01-160, ACC & CASE v. Dept. of Ecology & Port Of Seattle. Testimony introduces ACC — an interlocal agreement entity comprising Cities of Burien, Des Moines, Federal Way, Normandy Park, Tukwila,
    TagsACC, Clean Water Act, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 07
  • 2002-10-20

    EXH AR012984: Declaration of Gina Marie Lindsey — STIA Director, PCHB No. 01-0133

    Declaration of Gina Marie Lindsey, Director of Seattle-Tacoma International Airport (STIA) since September 1993, submitted in Pollution Control Hearings Board (PCHB) Case No. 01-0133, Airport Communities Coalition v. Department of Ecology and Port of Seattle. Lindsey describes STIA deficiencies including airside delays during poor weather, inadequate parking, inadequate road access for south airport traffic, and
    TagsACC, Airport Communities Coalition, Gina Marie Lindsey, PCHB, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master PlanFolderBox 06

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Upcoming Events

  • Port of Seattle Regular Commission Meeting September 22, 2026
    Add to CalendarMTuesday Sep 22: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 09 22 rm packet pdf

    Order of Business 10:30 a.m. 1. Call to Order 2. Executive Session – if necessary, pursuant to RCW 42.30.110 (executive sessions are not open to the public) 12:00 p.m. – Public Session Reconvene or Call to Order and Pledge of Allegiance 3. Approval of the Agenda 4. Special Orders of the Day 4a. Presentation of

    [...]
  • Highline Forum Agenda – September 23, 2026
    Add to CalendarMWednesday Sep 23, 2:30pm - 4:30pm
    City of Des Moines, Police Services Building,
    Highline forum agenda final 23sept2026 pdf

    Highline Forum Agenda Theme: Part 150 Update and PortJobs Overview 2:30pm – Convene Meeting/Introductions Port Co-Chair, Commissioner Mohamed 2:35pm – Public Comments Audience The meeting will be held in person and virtually. Those wishing to provide public comment may: 1) Deliver public comment via email; 2) Deliver public comment via Microsoft Teams; or 3) Deliver

    [...]

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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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