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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.

TagClean Water Act(243)

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  • 2002-01-14

    EXH AR021854: Helsell Fetterman to Army Corps Transmitting GeoSyntec Comments on Hart Crowser Geotechnical Summary RP, Third Runway Embankment Fill and West MSE Wall, STIA

    A January 2002 letter from law firm Helsell Fetterman, on behalf of the Airport Communities Coalition, raises concerns with the U.S. Army Corps of Engineers about the Port of Seattle's revised construction plans for the Sea-Tac Third Runway. The Port switched from an in-place ground improvement approach to excavating up to three million cubic yards of material beneath the proposed retaining wall, a major change that critics argue could significantly harm Miller Creek and adjacent wetlands. Attached technical comments from GeoSyntec Consultants also identify deficiencies in the Port's geotechnical report and argue the changes undermine the Port's Clean Water Act Section 404 permit application.
    TagsACC, Army Corp of Engineers, Clean Water Act, Miller Creek, Pollution Control Hearings Board, Third RunwayFolderBox 09
  • 2002-01-01

    Exhibit 200: Resume of Thomas R. Luster, Environmental Scientist, California Coastal Commission

    This document is the professional resume of Thomas R. Luster, an Environmental Scientist with the California Coastal Commission, detailing his career reviewing coastal development projects for compliance with environmental regulations. His background includes senior roles with the Washington State Department of Ecology, where he specialized in Clean Water Act Section 401 water quality certifications and Coastal Zone Management Act consistency determinations. The resume focuses on environmental permitting, water quality, and coastal resource protection, and does not contain content related to Sea-Tac Airport noise policy.
    TagsACC, Clean Water Act, Ecology, PCHB, Pollution Control Hearings Board, Third Runway, Water QualityFolderBox 08
  • 2001-12-26

    Exhibit 196: ACC’s Interrogatories Nos. 1-19 and Requests for Production Nos. 1-6 to Port Of Seattle and Port Of Seattle’s Objections and Responses Thereto

    This legal document contains the Port of Seattle's responses to interrogatories filed by the Airport Communities Coalition (ACC) before Washington State's Pollution Control Hearings Board. The Port identifies expert witnesses expected to testify on topics including contaminated site cleanup, stormwater quality, wetland mitigation, and environmental review under SEPA and NEPA for Sea-Tac Airport's Master Plan Update projects. The document outlines each expert's anticipated testimony and the basis for their opinions in connection with Clean Water Act permit requirements.
    TagsACC, Clean Water Act, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 08
  • 2001-12-18

    Exhibit 141: Order Granting Motion to Stay the Effectiveness of Section 401 Certification — ACC v. Ecology and Port Of Seattle (PCHB 01-160)

    Pollution Control Hearings Board (PCHB) Order Granting Motion to Stay the Effectiveness of Section 401 Certification No. 1996-4-02325 (amended-1), issued by Washington State Department of Ecology to the Port Of Seattle on September 21, 2001, in case PCHB 01-160. Airport Communities Coalition (ACC) filed the motion; Board members Kaleen Cottingham and Robert V. Jensen heard
    TagsACC, Clean Water Act, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 08
  • 2001-12-01

    EXH AR017886: Low Streamflow Analysis and Summer Low Flow Impact Offset Facility Proposal — Seattle-Tacoma International Airport Master Plan Update Improvements

    Report prepared by Parametrix, Inc. with Aqua Terra Consultants, Earth Tech, Inc., Foster Wheeler Environmental Corporation, HNTB, and Pacific Groundwater Group for Port Of Seattle regarding Sea-Tac Airport Master Plan Update Improvements. Analyzes summer low streamflow impacts to Walker Creek and Des Moines Creek from planned airport projects and proposes an offset facility using underground
    TagsACC, Clean Water Act, Des Moines Creek, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Water QualityFolderBox 08
  • 2001-11-30

    PCHB Doc 5855: CASE Intervenor’s Notice of Appeal of Reissued/Amended Section 401 Certification

    Citizens Against Sea-Tac Expansion (CASE), represented by Richard A. Poulin of Smith & Lowney P.L.L.C., files an Intervenor’s Notice of Appeal before the Pollution Control Hearings Board (PCHB No. 01-160) challenging Washington Department of Ecology Order No. 1996-4-02325 (Amended-1), issued September 21, 2001 — a reissued/amended Clean Water Act Section 401 Certification directed to the
    TagsACC, Airport Communities Coalition, CASE, Clean Water Act, PCHB, Pollution Control Hearings BoardFolderBox 03
  • 2001-11-28

    EXH AR005862: ACC’s Reply on Motion to Supplement the Record on Motion for Stay — PCHB No. 01-160

    ACC’s reply brief filed November 28, 2001 in PCHB No. 01-160 (Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle) opposing Port Of Seattle’s response to ACC’s Motion to Supplement the Record on Motion for Stay. ACC argues that Kelly Whiting (King County engineer under interagency contract with Ecology) sent
    TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Port Of SeattleFolderBox 03
  • 2001-11-15

    EXH AR006162: Port Of Seattle Letter to PCHB on Plans and Reports Pursuant to §401 Certification, PCHB Case No. 01-160

    Letter from Foster Pepper & Shefelman (attorneys for Port Of Seattle) to Kaleen Cottingham, Presiding Officer, Pollution Control Hearings Board (PCHB Case No. 01-160), dated November 15, 2001, identifying plans and reports prepared or expected to be prepared pursuant to §401 Certification. Lists documents submitted on or before November 15, 2001 (Wetland A17 mitigation plan,
    TagsACC, Clean Water Act, Ecology, PCHB, Pollution Control Hearings Board, Port Of SeattleFolderBox 03
  • 2001-11-15

    PCHB Doc AR006187: ACC v. Ecology and Port Of Seattle — Supplemental Stipulation Regarding Proposed Statement of Legal Issues

    Supplemental Stipulation filed in PCHB No. 01-160, Airport Communities Coalition (ACC) v. State of Washington Department of Ecology and Port Of Seattle. Filed November 15, 2001, received by the Pollution Control Hearings Board November 16, 2001. Documents 21 agreed proposed legal issues for the Board’s consideration, covering Clean Water Act Section 401 certification for the
    TagsACC, Clean Water Act, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 03
  • 2001-11-03

    PCHB Doc 005845: Memorandum Supporting CASE’s Motion to Intervene in ACC v. Ecology and Port Of Seattle

    Memorandum filed by Citizens Against Sea-Tac Expansion (CASE) supporting its motion to intervene in PCHB No. 01-160, Airport Communities Coalition v. Washington State Department of Ecology and Port Of Seattle. CASE seeks intervenor status under Civil Rule 24 and WAC 371-08-420(1) in the appeal of Amended Clean Water Act 401 Certification No. 1996-4-02325 (Amended-1) issued
    TagsACC, CASE, Clean Water Act, NPDES, Pollution Control Hearings Board, Third RunwayFolderBox 03

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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...]


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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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