TagSea-Tac Airport(2025)

This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes constrained operating growth scenarios, FAA-approved forecast data, and airside simulation modeling documentation used to support environmental review planning at Sea-Tac.

This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes constrained operating growth scenarios (COGS), FAA approval documentation, and airside modeling data used to support environmental review planning. The forecast serves as a foundational planning tool for understanding future airport capacity and operational assumptions.

This technical memorandum, prepared by Leigh Fisher for the Port of Seattle in September 2023, presents an updated aviation activity forecast for Seattle-Tacoma International Airport. It includes Constrained Operating Growth Scenarios (COGS), FAA approval of the forecast update, and airside modeling documentation used to support environmental review. The forecast and operational assumptions outlined in this document serve as the foundation for planning future airport capacity and assessing potential noise and environmental impacts.

Table I summarizing analytical results for PFAS (per and polyfluoroalkyl substances) in groundwater at Sea-Tac Airport, prepared by Haley & Aldrich, Inc. in August 2023. Groundwater monitoring wells sampled include LAI-4, MW-01, MW-02, MW-03, T-111-MW-1, TF-MW-01 through TF-MW-08-D, DMC Augmentation Well, and Tyee Well, with sample dates ranging from March 2019 to April 2023. Analytes

This document appears to be an organizational roster for CASE (Citizens Against Sea-Tac Expansion), listing officer positions and contact information including a Chair (acting), Vice Chair, Treasurer, Secretary, and members of Technical and Research Committees focused on noise and environmental health concerns. The document references a goal of addressing airport expansion alternatives and includes phone numbers for key members such as Loretta Bower (Treasurer) and Joan Bell (Secretary). It likely dates from the early period of community organizing around Sea-Tac Airport expansion opposition.

This document is a membership fact sheet for the Regional Civil Aviation Authority (RCAA), listing dozens of member organizations opposed to Sea-Tac Airport noise and expansion, including neighborhood councils, city governments, and advocacy groups such as the Aircraft Noise Coalition (ANC) and Citizens Alternatives to Sea-Tac Expansion (CASE). Member cities include Des Moines, Normandy Park, and Tukwila, alongside institutions like Highline Community Hospital and Highline School District. The sheet highlights the broad coalition of community stakeholders united around aircraft noise abatement and opposition to airport expansion in the Seattle-Tacoma region.

A letter from the Regional Commission on Airport Affairs (RCAA) to Senator Skratek urges review of air capacity issues related to Sea-Tac Airport expansion, noting that the expansion could negatively affect many people. The letter encloses a book suggested by Jeff Newell containing executive summaries and charts covering air capacity issues, and requests 30 minutes of the Senator's time before the final Transportation Policy Board vote on March 4. The letter is endorsed by a wide range of community organizations, cities, and advocacy groups opposed to or concerned about Sea-Tac expansion.

This presentation addresses environmental and health concerns surrounding Seattle-Tacoma International Airport, framing the issue as more than a mere noise nuisance by highlighting the health impacts of Jet A fuel pollution, specifically ultrafine particles. It outlines a 'Trifecta for Change' strategy that includes shifting public dialogue, engaging the University of Washington to study pollution prevalence, and building local, state, and federal partnerships to advance mitigation efforts.