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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.

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  • 1982-07-27

    Detailed Analysis of Airspace Interactions – Chapter 6

    ★ 33
    Technical analysis of airspace interactions between Sea-Tac Airport and Boeing Field, examining runway capacity models, aircraft delay calculations, and the effects of airspace interactions on airport operations. The document presents detailed capacity and delay calculations using computerized models.
    CategoriesKey Documents TagsAir Traffic Control, Airport, Airport Expansion, Airspace Study, Peat Marwick Mitchell
  • 1981-12-10

    Boeing Headquarters Memo of Understanding – Port of Seattle Letter

    ★ 32
    Letter from Port of Seattle Director of Aviation Oris Dunham to King County Council Chairman Paul Barden regarding a Memo of Understanding for Boeing Headquarters project at Sea-Tac International Airport. Includes discussion of rezoning approval following favorable Washington State Supreme Court ruling.
    CategoriesCorrespondence, History, Key Documents TagsAirport, Airport Expansion, Boeing, Litigation, Port Of Seattle
  • 1979-01-25

    Letter from State Representative John Jovanovich to Jean Pihlman regarding STCP Policy Advisory Committee

    ★
    In this January 25, 1979 letter, Washington State Representative John Jovanovich (31st District) writes to Ms. Jean Pihlman explaining that the Sea-Tac Comprehensive Plan (STCP), adopted by the Port of Seattle and King County, primarily addresses the airport and its noise-impacted areas. He urges that citizen representatives on the Policy Advisory Committee — the body responsible for monitoring the plan — should come directly from the noise-impacted communities, so that their needs are properly understood by decision-makers.
    CategoriesCorrespondence, History, Key Documents TagsAirport, Airport Committees, Airport Noise Law, Port Of Seattle
  • 1978-09-01

    Policy Advisory Committee for Sea-Tac Plan Implementation

    ★
    This 1978 document outlines the structure and functions of a Policy Advisory Committee (PAC) formed to oversee implementation of the Sea-Tac Airport Communities Plan, including long-term monitoring of airport noise issues and making recommendations to King County and Port of Seattle officials. The 12-member committee draws representatives from King County, local governments, businesses, schools, airlines, and community citizens. It also details noise exemption rules for daytime aircraft testing and maintenance at Seattle-Tacoma International Airport, specifying conditions such as permitted hours (7 a.m. to 10 p.m.) and geographic boundaries defined by the 'NEF 45' noise exposure contour line.
    CategoriesKey Documents TagsAirport, Airport Citizen Participation Program, Airport Committees, Airport Noise Law, ANCA
  • 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
  • 1968-07-01

    Building the Seattle-Tacoma Air Gateway

    ★ 31
    A 1968 report analyzing the development of Seattle-Tacoma International Airport as an air transportation hub. The document examines air traffic growth patterns, airline service routes, and the evolution of commercial aviation at Sea-Tac from 1958-1967, showing dramatic increases in passengers, cargo, and aircraft movements.
    CategoriesHistory, Key Documents TagsAirline Industry, Airport, Airport Expansion, Aviation Committees, Port Of Seattle
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    2026-07-14

    FAA extends operating limitations at Chicago O’Hare International Airport to October 30, 2027

    Document DetailsAgencies Department of Transportation Federal Aviation Administration Document Citation 91 FR 43144 Document Number 2026-14147 Document Type Notice Page 43144 (1 page) Publication Date 07/14/2026Published Content – Document Details PDF View printed version (PDF) Official Content Document DetailsAgencies Department of Transportation Federal Aviation Administration Document Citation 91 FR 43144 Document Number 2026-14147 Document Type
    CategoriesFrom The Web TagsAir Traffic Control, aircraft, Airport, FAA, O'Hare
  • Aircraft wreckage in water
    2026-04-14

    Congress advances aviation bill requiring cockpit alert technology

    By Anumita Kaur and Lauren Rosenblatt Seattle Times staff reporters WASHINGTON — Efforts to mandate new aviation safety standards regained momentum in Congress on Tuesday as the House passed a sweeping reform bill, months after an earlier version of the legislation drew sharp backlash from plane crash victims’ families, commercial airline pilots and federal investigators.
    CategoriesFrom The Web TagsAirport, Port Of Seattle, Sea-Tac Airport
  • Screenshot 2026 04 21 at 11 32 06 Home Port of Seattle Emano
    2026-04-09

    Port of Seattle 2024 Data Breach Settlement web site

    In re: Emano, et al. v. Port of Seattle Case No. 25-2-11500-3 SEA Superior Court of the State of Washington, King County The Port of Seattle has created an official Settlement Website for the In re: Emano, et al. v. Port of Seattle authorized by the Superior Court of the State of Washington, King County.
    CategoriesFrom The Web, News Stories Tags2024 Data Breach, Airport, Port Of Seattle
  • 2026-02-25

    Introduction to aviation forecasting

    This presentation, delivered on February 25, 2026, introduces the fundamentals of aviation forecasting as part of the airport planning process. It outlines how planners forecast passenger demand, aircraft operations, and automobile traffic, then identify physical, operational, and level-of-service constraints before developing and evaluating alternatives. The material emphasizes that while predicting future demand is inherently uncertain, structured forecasting is a critical first step in guiding airport infrastructure decisions.
    TagsAirport, Forecast, Port Of Seattle, StART

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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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