The most requested documents–and all related-content
This page is an attempt to solve a problem we’ve had since the beginning: how to get visitors to study documents and all the related content which often provides the necessary context. For example, most studies are meant to be read by specialists. If you are a layperson, you may only be interested in the ‘one-pager’. This page shows you both.
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2025-09-01Appendix K: Children’s Environmental Health and Safety Risks, Socioeconomics, and Environmental Justice (NEPA Final EA and SEPA)
Appendix K of this environmental review examines socioeconomic conditions, environmental justice, and children's health and safety risks in the area surrounding the proposed project. It finds that 23.3% of the population in the study area is under 18—higher than both King County and statewide averages—and identifies two schools within the project boundary that could expose children to environmental health risks. The appendix also includes an economic impact analysis for the Northwest Seaport Alliance and a separate environmental justice memorandum prepared under Washington State's environmental review process. -
1996-02-01Final Environmental Impact Statement for proposed Master Plan Update development actions at Seattle-Tacoma International Airport
This 1996 Final Environmental Impact Statement, prepared jointly by the FAA and the Port of Seattle, evaluates proposed expansion plans at Seattle-Tacoma International Airport through the year 2020, including the construction of a third parallel runway up to 8,500 feet long, a new north terminal, and various landside improvements. The document assesses environmental consequences across 24 categories—including noise, air quality, water quality, and human health—for a range of alternatives, from building a new regional airport to a no-build option. Ultimately, the Port of Seattle selected Alternative 3 as the preferred option, concluding that Sea-Tac was the only feasible site to address the region's growing air transportation needs. -
1997-05-13Final Supplemental Environmental Impact Statement for the Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport, Volume 1: Main Text and Appendices A through C-1
This 1997 Final Supplemental Environmental Impact Statement (SEIS) examines the environmental effects of proposed expansion plans at Seattle-Tacoma International Airport, including construction of a new third parallel runway, terminal improvements, and parking upgrades. The study was prompted by faster-than-expected growth in air travel demand during the mid-1990s, which exceeded earlier forecasts and required updated analysis of noise, air quality, wetland, and community impacts. The document was jointly prepared by the FAA and the Port of Seattle to ensure the proposed developments met federal and Washington State environmental policy requirements. -
2023-04-24Projecting the health and economic burden of aircraft noise
This study projects the long-term health and economic costs of aircraft noise generated by the NextGen automated flight system, focusing on communities near Baltimore Washington International Airport. Using a mathematical simulation model, researchers estimated the impact of noise exposure on cardiovascular disease, anxiety, annoyance, and low birth weight over periods of 10, 20, and 30 years. The findings are intended to inform noise mitigation policies and provide a clearer picture of the public health consequences of modern air traffic management systems. -
1997-02-01Sea-Tac International Airport impact mitigation study: Initial assessment and recommendations
★ 32The HOK Study. 1997 initial assessment and recommendations report for the Sea-Tac International Airport Impact Mitigation Study, prepared by Hellmuth, Obata + Kassabaum and Raytheon Infrastructure Services. The study was funded by a State of Washington grant on behalf of the cities of Burien, Des Moines, Federal Way, Normandy Park, and Tukwila, as well as -
Sea-Tac-Airport-Final-EIS-Feb.-1996-Vol
This page is from the Executive Summary of the Sea-Tac Airport Master Plan Update Final Environmental Impact Statement (EIS), discussing noise mitigation strategies including sound insulation, noise budget limits, nighttime limitations, flight corridorization, and land acquisition in the Approach Transitional Area. It estimates acquisition and relocation costs for approximately 309 residential homes and multi-family buildings at roughly $35 million, referencing an FAA Memorandum dated April 30, 1991. -
2020-09-24The Impact of Airport Proximity on Single-Family House Prices—Evidence from Poland
Academic journal article published in MDPI Sustainability (2020, vol. 12, 7928) by Mirosław Bełej, Radosław Cellmer (University of Warmia and Mazury in Olsztyn), and Michał Głuszak (Cracow University of Economics) examining the impact of airport proximity on single-family house prices in Poland, 2013–2017. Analyzes Gdańsk Lech Walesa Airport and Warsaw Chopin Airport limited use areas -
The Sea-Tac Communities Plan
★Overview The draft Sea-Tac Communities Plan (STCP) (known as “the Redbook” was delivered to the King County Council and Port of Seattle Commissioners in January 1975 after eighteen months of work and a $641,000 grant from the FAA. The authors were the Policy Advisory Committee, a twelve member group of citizens, King County, Port staff,