TagSea-Tac Airport(1835)

The University of Washington School of Public Health was directed by Washington State to study ultrafine particle air pollution near Sea-Tac Airport, the state's busiest international airport. The study assessed air quality within 10 miles of the airport along flight paths, distinguishing between aircraft and other pollution sources, and comparing affected areas with unaffected ones. Findings were shared with local governments and community members, with a final report due December 1, 2019.

A Highline Forum presentation examining whether aircraft arrival numbers at Seattle-Tacoma International Airport have decreased compared to a few years earlier. The analysis uses one month of arrival flight track data from June 2013, June 2015, and June 2017 across Sea-Tac's three parallel runways (16L/34R, 16C/34C, and 16R/34L). June was chosen as a representative month because it typically features a balanced mix of north and south flow operations, Instrument Landing System (ILS) and visual approaches, and an average volume of aircraft traffic.

This Port of Seattle document outlines key federal aviation noise and air quality legislation relevant to the StART (Sea-Tac Airport Roundtable) Federal Working Group, including provisions from the FAA Reauthorization Act of 2018 and proposed 2019 legislation. It highlights priority items such as evaluating alternatives to the DNL 65 noise standard, studying health impacts of aircraft noise in major metro areas including Seattle, and creating environmental mitigation grant programs for airports. Additional considerations include secondary noise insulation, increased funding for federal noise programs, and greater flexibility for local communities to address aviation impacts.

The Sea-Tac Stakeholder Advisory Round Table (StART) is a forum created by the Port of Seattle to strengthen relationships between Sea-Tac Airport and six neighboring communities, working cooperatively to identify issues and possible solutions. Development of StART began in mid-2017, with each city appointing two community members and one city employee to participate, alongside the Airport's Managing Director as chair. Airlines Alaska and Delta, as well as Lynden, also serve as members of the round table.

This final engineering report, prepared by Gresham Smith for the Port of Seattle, details the planned expansion of the Industrial Wastewater Treatment Plant (IWTP) at Seattle-Tacoma International Airport. Dated June 7, 2023, the report was developed in compliance with Washington Administrative Code 173-240-130 to satisfy permit requirements under Waste Discharge Permit #7810-05. It outlines technical plans for upgrading the airport's wastewater treatment infrastructure to meet current regulatory standards.