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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.

TagAirport Communities Coalition(69)

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  • 2025-10-03

    UFP-Advisory-Group-Meeting-2025.10

    ★
    Advisory group meeting presentation focused on urban ultrafine particles, likely related to aviation emissions and air quality impacts on airport communities. The meeting appears to be part of ongoing research or policy discussions regarding particulate matter from aircraft operations.
    CategoriesKey Documents, Meetings, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Atmospheric Science, Aviation Emissions
  • 2003-05-20

    Aviation Mitigation Zones – HB 2276 Striking Amendment (H-3175.2/03)

    ★ 32
    A 2003 Washington State legislative memorandum outlines a proposed striking amendment to HB 2276, which would establish Aviation Mitigation Zones (AMZs) around large regional airports like Seattle-Tacoma International Airport to address noise impacts on nearby communities. The amendment would require the Port of Seattle to levy $10 million annually from 2004 to 2007 into a dedicated mitigation fund, with spending restricted to affected areas within the AMZ. An advisory board and competitive grant process would be created to help distribute funds to eligible local governments, schools, and nonprofits in impacted neighborhoods such as Burien, Des Moines, Tukwila, and Normandy Park.
    CategoriesKey Documents, Legislation TagsAirport, Airport Communities Coalition, Airport Noise Law, Aviation Impacted Communities Alliance, Port Of Seattle
  • 2003-05-20

    Aviation Mitigation Zones – HB 2276 Striking Amendment (H-3175.2/03)

    ★
    A 2003 Washington State legislative memorandum outlines a proposed striking amendment to HB 2276, which would establish Aviation Mitigation Zones (AMZs) around large regional airports like Seattle-Tacoma International Airport to address noise impacts on nearby communities. The amendment would require the Port of Seattle to levy $10 million annually from 2004 to 2007 into a dedicated mitigation fund, with spending restricted to affected areas within the AMZ. An advisory board and competitive grant process would be created to help distribute funds to eligible local governments, schools, and nonprofits in impacted neighborhoods such as Burien, Des Moines, Tukwila, and Normandy Park.
    CategoriesKey Documents, Legislation TagsAirport, Airport Communities Coalition, Airport Noise Law, Aviation Impacted Communities Alliance, Port Of Seattle
  • 2002-06-03

    Legal Analysis of King County’s Role in Des Moines Beach Park Conveyor Belt Proposal

    ★
    Legal counsel James L. Brewer analyzes King County’s jurisdictional authority regarding a proposed fill material conveyor belt operation at Des Moines Beach Park. The memo examines property interests, covenants requiring park use only, and concludes the proposed 30-month project would be inconsistent with park purposes due to significant disruption.
    CategoriesKey Documents, Litigation TagsAirport Communities Coalition, Airport Expansion, airport issues
  • 2002-05-01

    C.A.S.E. MEETING MINUTES May 1, 2002

    ★
    Meeting minutes from Citizens Against Sea-Tac Expansion discussing various airport-related issues including geese shooting near schools, conveyor belt project opposition, arsenic contamination concerns, and updates from local representatives on legislative matters and environmental issues. Karen Keiser. Dave Upthegrove. Brett Fish.
    CategoriesKey Documents, Meetings, Organizations TagsAirport Communities Coalition, Airport Expansion, Arsenic, CASE, Conveyor, North Sea-Tac Park
  • 1996-03-27

    Final Decision on Noise Issues – Expert Arbitration Panel’s Review of Sea-Tac International Airport

    ★
    In March 1996, an Expert Arbitration Panel reviewed whether the Port of Seattle had met noise reduction requirements set by the Puget Sound Regional Council as a condition for approving a third runway at Sea-Tac International Airport. A majority of the Panel concluded that, despite the Port's extensive noise abatement programs, it had not demonstrated a sufficient reduction in real, on-the-ground noise impacts to satisfy Resolution A-93-03. This decision left the noise condition as the sole remaining hurdle for authorizing the third runway's construction.
    CategoriesHistory, Key Documents, Litigation TagsAircraft Maintenance, Airport Communities Coalition, Airport Expansion, airport issues, Airport Noise Law, Port Of Seattle, PSRC
  • 1973-07-01

    Technical Report #2 Public Facilities and Services in the Sea-Tac Communities Plan Study Area

    ★
    This 1973 technical report from King County's Office of Community and Environmental Development surveys the public facilities and services available in the SeaTac Communities Plan Study Area. It covers schools, parks, libraries, fire protection, sewer and water services, and other community infrastructure. The report was produced to support land use planning in the area surrounding Seattle-Tacoma International Airport.
    CategoriesHistory, Key Documents TagsAirport, Airport Communities Coalition, Airport Community Ecology Fund, Port Of Seattle, Sea-Tac Communities Plan
  • 2025-10-27

    Community Panel Discussion Event

    A panel of approximately seven speakers seated on a stage addresses a small audience in a community hall or civic center. A large TV monitor to the left of the stage displays a remote video participant alongside what appears to be a presentation slide, though the text is not legible at this resolution.
    CategoriesEvents TagsActivism, Airport Communities Coalition
  • 2025-10-03

    UFP-Advisory-Group-Meeting-2025.10

    Meeting minutes from the UFP Advisory Group discussing research priorities for ultrafine particle health effects, mitigation strategies, and exposure reduction in aviation-impacted communities. Participants included University of Washington researchers, public health officials, school district representatives, and community leaders focusing on air quality and health impacts near Sea-Tac Airport.
    CategoriesMeetings, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, Aviation Emissions
  • 2025-02-14

    Washington State Air Pollution Map – Airport Communities

    A map of Washington State identifying 16 communities with elevated cumulative criteria air pollution levels, including locations such as Spokane, Tacoma, Seattle, Yakima Valley, and Vancouver. The map uses a shading gradient to indicate highest to lowest pollution levels, with numbered red markers pinpointing each named community.
    CategoriesExplainers, Resources TagsAir Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, airport issues, Airports, Aviation Emissions

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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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