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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.

TagWater Quality(475)

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  • 2000-10-16

    Exhibit 7: STIA Construction Site Stormwater Monitoring — October 16 and 20, 2000

    STIA Construction Site Stormwater Monitoring reports dated 10/16/00 and 10/20/00, samplers JL/RS and JB/RS. Documents turbidity and pH measurements at multiple Sea-Tac Airport construction sites including Logistics Site Development (Tyee Pond, Des Moines Creek outfall), MWS Lagoon 3 Construction, Airfield Improvement (SDS3-594, SDS-6, SDS-7), Dobbs Flight Kitchen Remodel (SDE4-611, SDE4-607, SDE4-615, SDE4-601, SDE4-602), Booster Pump
    TagsACC, Construction, NPDES, Pollution Control Hearings Board, Sea-Tac Airport, Stormwater, Water QualityFolderBox 10
  • 2000-10-04

    EXH AR046024: STIA Ground Water Study — Ecology Meeting Agenda and Presentation, October 4, 2000

    Agenda and presentation materials for the Seattle-Tacoma International Airport (STIA) Ground Water Study Ecology meeting held October 4, 2000, prepared by Associated Earth Sciences, Inc., S.S. Papadopulos and Associates, Inc., and EA Engineering, Science, and Technology for the Port Of Seattle. Topics include database development, conceptual ground water model, ground water level monitoring of the
    TagsACC, Des Moines, Ecology, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Water QualityFolderBox 19
  • 2000-10-02

    EXH AR021560: Water/Sediment Quality Monitoring Lab Results Letter, SR K2006704

    This October 2000 laboratory report from Columbia Analytical Services presents water and sediment quality monitoring results for samples submitted by Columbia Biological Assessments in Richland, Washington. The report includes data qualifiers and acronym definitions for interpreting inorganic, metals, and organic analysis results. All analyses were conducted under the laboratory's quality assurance program and assigned service request number K2006704.
    TagsACC, PCHB, Pollution Control Hearings Board, Third Runway, Water QualityFolderBox 09
  • 2000-09-29

    EXH AR028000: Ecology Letter Denying 401 Certification for Proposed Columbia River Channel Improvements

    Washington State Department of Ecology letter dated September 29, 2000, to Colonel Randall J. Butler (Army Corps of Engineers, Portland District) and Lee Daneker (EPA Aquatic Management Division) denying without prejudice a Section 401 Clean Water Act water quality certification for the Columbia River Channel Improvements project. The two proposed actions were: (1) deepening the
    TagsACC, Army Corp of Engineers, Clean Water Act, Ecology, Pollution Control Hearings Board, SEPA, Water QualityFolderBox 10
  • 2000-09-28

    EXH AR045668: Annual Stormwater Monitoring Report for Seattle-Tacoma International Airport, July 1999–June 2000

    Annual Stormwater Monitoring Report for Seattle-Tacoma International Airport (STIA) covering the period July 1, 1999 through June 30, 2000, prepared by Scott Tobiason, Environmental Management Specialist, Aviation Environmental Programs, Port Of Seattle. Report AR 045668 documents stormwater sampling results from STIA storm drainage subbasins including total petroleum hydrocarbons (TPH), fecal coliforms, suspended solids, turbidity, biochemical
    TagsACC, Deicing, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Water QualityFolderBox 19
  • 2000-09-28

    EXH AR051605: Annual Stormwater Monitoring Report for Seattle-Tacoma International Airport, July 1, 1999 through June 30, 2000

    Annual stormwater monitoring report prepared by Scott Tobiason, Environmental Management Specialist, Aviation Environmental Programs, Port Of Seattle, covering Sea-Tac Airport (STIA) for the period July 1, 1999 through June 30, 2000. Report covers STIA storm drainage subbasins, sampling locations, grab and composite sample results for total petroleum hydrocarbons (TPH), fecal coliforms, suspended solids, turbidity, biochemical
    TagsACC, Deicing, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Water QualityFolderBox 21
  • 2000-09-27

    EXH AR017920: Ecology Draft Letter to Port Of Seattle on 401 Water Quality Certification Withdrawal and Reapplication Process — Third Runway

    Attorney-client privileged deliberative document dated September 27, 2000, from Gordon White (Washington Department of Ecology, Shorelands and Environmental Assistance Program) to Tom Luster, Raymond Hellwig, Kevin Fitzpatrick, Joan Marchioro (ATG), and Erik Stockdale. Transmits draft letter to M.R. (Mic) Dinsmore, Executive Director, Port Of Seattle, regarding 401 Water Quality Certification review for the Third Runway
    TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water QualityFolderBox 08
  • 2000-09-27

    EXH AR017924: Internal Email Chain — Dinsmore Draft 401 Denial Letter and Withdrawal Letter Review

    Internal email chain dated September 27, 2000, among Washington State Department of Ecology staff Tom Luster, Raymond Hellwig, Joan Marchioro (ATG), Kevin Fitzpatrick, and Erik Stockdale, forwarded to Gordon White, marked ‘Attorney Client Privileged’ and ‘Deliberative Document.’ Concerns the Dinsmore project draft 401 certification denial letter and withdrawal letter (AR017924–017926). Luster raises concerns that the
    CategoriesCorrespondence TagsACC, Clean Water Act, Ecology, Pollution Control Hearings Board, Water QualityFolderBox 08
  • 2000-09-27

    EXH AR018454: Internal Email Chain — Dinsmore Draft 401 Review Letter, Ecology Staff Deliberations

    Internal deliberative email chain dated September 27, 2000, among Washington State Department of Ecology staff Tom Luster, Raymond Hellwig, Kevin Fitzpatrick, Joan Marchioro (ATG), and Erik Stockdale, marked Attorney Client Privileged. Discusses draft denial letter and withdrawal letter related to the Dinsmore 401 water quality certification review for a Port Of Seattle project (Sea-Tac Airport).
    TagsACC, Clean Water Act, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, Water QualityFolderBox 08
  • 2000-09-26

    EXH AR023557: Water Resources Consulting to Ecology — Des Moines Creek Flow Augmentation Facility

    A September 26, 2000 letter from Water Resources Consulting L.L.C. to the Washington State Department of Ecology critiques the Port of Seattle's plans to augment water flow in Des Moines Creek, a project related to Sea-Tac Airport operations. The letter identifies several serious flaws in the proposal, including the lack of a secured water source, concerns about water temperature and fluoride toxicity to fish, and a maintenance-intensive design prone to failure. The author concludes that the Port's 'preliminary design' does not provide reasonable assurance that water quality standards will be met.
    CategoriesCorrespondence TagsACC, Des Moines Creek, Ecology, Pollution Control Hearings Board, Port Of Seattle, Water QualityFolderBox 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

    [...]

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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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