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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.
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  • 2001-09-26

    EXH 195: Erik Stockdale Notes — Wetlands Monitoring

    Meeting notes from Erik Stockdale discuss wetland monitoring activities, including monthly groundwater sampling, continuous recorders at drainage channels, and vegetation mapping. Topics covered include hydrology monitoring changes, performance standards for hydrological discharge, and sampling schedules running bi-monthly from November through May. The notes reference coordination among multiple parties regarding soil sampling, data thresholds, and revised performance standards.
    TagsACC, Handwritten Notes, NEPA, PCHB, Pollution Control Hearings Board, Sea-Tac Airport, Third RunwayFolderBox 08
  • 2001-09-26

    PCHB Doc 01-133: Declaration of Pete Kmet — ACC v. Ecology and Port Of Seattle

    Declaration of Pete Kmet, senior environmental engineer in Ecology’s Toxics Cleanup Program, filed in PCHB No. 01-133 (Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle). Kmet clarifies his June 27, 2001 response to Kevin Fitzpatrick (Water Quality Program) regarding terrestrial ecological risk language for the Clean Water Act §
    TagsACC, Clean Water Act, Model Toxics Control Act, PCHB, Pollution Control Hearings Board, Third RunwayFolderBox 04
  • 2001-09-25

    EXH AR012945: Declaration of Alan C. Ralston in Support of Third Runway at Sea-Tac Airport

    Declaration of Alan C. Ralston, Director of Northwest State and Local Government Relations for The Boeing Company, filed in PCHB Case No. 01-133 (Airport Communities Coalition v. Department of Ecology and Port of Seattle) before the Pollution Control Hearings Board for the State of Washington. Ralston declares Boeing’s support for expeditious construction of the Third
    TagsACC, Airport Communities Coalition, Boeing, PCHB, Pollution Control Hearings Board, Third RunwayFolderBox 06
  • 2001-09-25

    EXH AR012942: Declaration of James L. Morasch in Support of Port Of Seattle Third Runway, PCHB 01-133

    Declaration of James L. Morasch, Director of Airports for the Port of Pasco, filed in PCHB case No. 01-133 (Airport Communities Coalition v. Department of Ecology and Port of Seattle). Morasch supports the new all-weather third runway at Seattle-Tacoma International Airport (Sea-Tac). States Sea-Tac is the #1 destination for Tri-Cities Airport passengers, accounting for 47%
    TagsAAAE, ACC, Airport Communities Coalition, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 06
  • 2001-09-21

    EXH AR026656: BMP Screening Study — Filtration Media Zinc & Toxicity Reduction Stormwater STIA

    Researchers tested several filtration media, including leaf compost (CSF®) and soybean hulls, for their ability to remove zinc and reduce toxicity from stormwater runoff at Seattle-Tacoma International Airport. The study was prompted by prior water quality monitoring that linked stormwater toxicity to zinc from building materials in certain airport drainage areas. Results from these controlled laboratory tests were used to select the best-performing media for future on-site stormwater treatment trials at the airport.
    TagsACC, NPDES, PCHB, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Third Runway, Water QualityFolderBox 10
  • 2001-09-21

    EXH AR021666: Declaration Dr. John Strand Supporting ACC Reply Motion Stay PCHB 01-133 01-160

    Dr. John Strand, a fisheries biologist, submitted this declaration to the Washington Pollution Control Hearings Board challenging the state Department of Ecology's water quality certification for Sea-Tac Airport expansion. He argues that stormwater runoff from Seattle-Tacoma International Airport contains copper, lead, and zinc at levels exceeding Washington State Water Quality Criteria, citing the Port of Seattle's own 1995-1996 data showing metals concentrations downstream of airport outfalls far above allowable limits. The declaration was filed in support of the Airport Communities Coalition, representing several cities neighboring the airport, in their motion to stay the certification.
    TagsACC, Miller Creek, PCHB, Pollution Control Hearings Board, Water QualityFolderBox 09
  • 2001-09-21

    EXH AR022903: Sec 401 Cert Synthetic Precipitation Leaching Procedure Work Plan, Attach E — Water Quality Cert #1996-4-02325 (Amended -1)

    This September 2001 Work Plan Attachment describes the fill suitability testing procedures required for the Port of Seattle's third runway embankment construction at Sea-Tac Airport, outlining how soil and fill materials must meet Washington State and U.S. Fish and Wildlife Service environmental standards. It explains the Synthetic Precipitation Leaching Procedure (SPLP), a laboratory test used to determine whether fill materials could release harmful metals or chemicals into groundwater. Materials failing the screening criteria must be rejected or undergo additional testing before being approved for use in the embankment.
    TagsACC, MTCA, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 09
  • 2001-09-18

    EXH 462: Phone Call Notes — ACC Appeals WDOE Third Runway Permit, King County Role

    A September 18, 2001 phone call memo from Ann Kenny of the Washington Department of Ecology (WDOE) outlines a legal dispute over the 3rd Runway permit at Sea-Tac Airport, in which the Airport Communities Coalition (ACC) filed a Motion for Stay claiming an imminent environmental threat. WDOE attorneys requested King County provide technical rebuttals to the ACC's expert statements by October 1, 2001, but King County lacked the necessary documents, a contract amendment, and adequate time to respond. WDOE warned it might subpoena County staff if they did not commit to providing the requested support.
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third RunwayFolderBox 09
  • 2001-09-12

    EXH AR008048: Declaration of Dr. Peter Willing in Support of ACC’s Motion for Stay — Section 401 Certification No. 1996-4-02325

    Declaration by Dr. Peter Willing, Principal of Water Resources Consulting LLC (Bellingham), filed in Pollution Control Hearings Board Case No. 01-133, Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle. Supports ACC’s motion for stay of Ecology’s Section 401 Water Quality Certification No. 1996-4-02325 and CZMA concurrency statement issued August
    TagsACC, Airport Communities Coalition, PCHB, Pollution Control Hearings Board, Third Runway, Water QualityFolderBox 04
  • 2001-09-12

    EXH AR023891: Contract Amendment Request — King County Review Services, Ecology Third Runway Permit Appeal

    This document is an email chain from September 2001 in which King County's David Masters notifies Ann Kenny that spending on a contract for technical review services provided to the Washington State Department of Ecology has exceeded its $95,000 limit by $23,695. Masters proposes amending the contract to increase the budget by $170,000 to a new total of $265,000, covering anticipated work such as low-flow analysis, preparation of appeal materials, and potential expert witness testimony. Ann Kenny forwarded the information to Michael Cheyne to facilitate the contract amendment process.
    TagsACC, Ecology, King County, PCHB, Pollution Control Hearings Board, Third RunwayFolderBox 10

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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...]


Help study childhood asthma. Get free HEPA filter!

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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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