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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.

TagEcology(797)

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  • 1993-01-01

    Stormwater erosion and sediment control for large parcel construction

    This Washington State Department of Ecology report outlines stormwater erosion and sediment control requirements for large construction projects involving one or more acres of disturbed land in the Puget Sound Basin. It describes best management practices (BMPs) such as covering exposed soil, trapping sediment onsite, and protecting adjacent properties from runoff and sediment. Developers are required to create an erosion and sediment control plan and are financially responsible for its implementation.
    TagsConstruction, Ecology, NPDES, RCAA, Stormwater, Water Quality
  • 1992-12-26

    EXH AR017093: Water Quality Standards for Surface Waters of the State of Washington — WAC Chapter 173-201A

    Washington Administrative Code (WAC) Chapter 173-201A, Water Quality Standards for Surface Waters of the State of Washington, issued by the Washington State Department of Ecology under RCW 90.48. Covers introduction (WAC 173-201A-010) and definitions (WAC 173-201A-020) including AKART, background conditions, best management practices, carcinogen, chronic/acute conditions, critical condition (7Q10 flow), ecoregions, fecal coliform, hardness, mixing
    TagsACC, Ecology, Pollution Control Hearings Board, RCW, WAC, Washington Administrative Code, Water Quality
  • 1992-02-01

    EXH AR028244: Wetland Mitigation Replacement Ratios: An Annotated Bibliography

    Annotated bibliography on wetland mitigation replacement ratios, published February 1992 as Publication #92-09 by the Washington State Department of Ecology (Ecology), Shorelands and Environmental Assistance Program, Olympia, Washington. Edited by Andrew J. Castelle, Catherine Conolly, and Michael Emers (Adolfson Associates, Inc., Edmonds, WA) and Eric D. Metz, Susan Meyer, and Michael Witter (W & H
    TagsACC, Ecology, Environment, Pollution Control Hearings Board, State of Washington
  • 1991-10-30

    Sea-Tac Airport identified as a major polluter

    A May 1991 Washington State Department of Ecology study, requested by state Representative Greg Fisher, identified Seattle-Tacoma International Airport as a major indirect source of air pollution, responsible for approximately 8% of carbon monoxide and 5% of nitrogen oxide emissions in King County. The report found that idling jets on the runway were the primary source of carbon monoxide, while aircraft climb and approach operations generated the most nitrogen oxide, with local pollution hotspots identified near South 154th Street, Seattle Christian School, and Tyee Golf Course. The study recommended minimizing runway queuing, reducing airport automobile traffic, exploring alternative fuels for ground support vehicles, and conducting further ground-level air quality testing around the airport.
    TagsEcology, pollution
  • 1991-05-01

    EXH AR019107: Field Assessment Mitigation Replacement Ratios Puget Sound

    This 1991 report by Sheldon and Associates, prepared for the Washington Department of Ecology, assesses wetland mitigation replacement ratios in the Puget Sound region. It evaluates compensation sites where wetlands were restored or created to offset permitted wetland losses, examining how well those sites functioned as replacements. The report provides findings, conclusions, and recommendations on compensation plan design, monitoring, and appropriate replacement ratios for regulatory guidance.
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Puget Sound, Third Runway
  • 1989-01-01

    Puget Sound water quality: An annotated bibliography of agency materials

    This 1989 annotated bibliography from the Puget Sound Water Quality Authority catalogs agency publications related to Puget Sound water quality, covering topics such as nonpoint source pollution, shellfish safety, oil spills, and stormwater management. It lists reports, newsletters, and pamphlets from federal, state, and local agencies—including the EPA, Washington Department of Ecology, and various county departments—along with contact information for obtaining each document. The bibliography serves as a resource guide for researchers, planners, and community members concerned with environmental water quality issues in the Puget Sound region.
    TagsEcology, Environment, Puget Sound, Stormwater, Water Quality
  • 1984-10-01

    EXH AR037232: Guidelines for Deriving Numerical Aquatic Site-Specific Water Quality Criteria by Modifying National Criteria

    EPA-600/3-84-099, published October 1984 by the U.S. EPA Environmental Research Laboratory, Duluth, Minnesota. Authored by Anthony R. Carlson, William A. Brungs, Gary A. Chapman, and David J. Hansen from EPA Environmental Research Laboratories in Duluth MN, Narragansett RI, Corvallis OR, and Gulf Breeze FL. Provides protocols for deriving numerical aquatic site-specific water quality criteria by
    TagsACC, Ecology, Environmental Protection Agency, EPA, Pollution Control Hearings Board, Water Quality

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
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    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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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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