TagSAMP(650)

This document outlines the history of the StART (Sea-Tac Airport Roundtable) process, explaining why the cities of Burien, Des Moines, and Federal Way suspended their participation in summer 2019. The cities cited the Port of Seattle's decision to spend $10 million on design work for the Sustainable Airport Master Plan (SAMP) without completing environmental review or meaningfully consulting affected communities. Additional concerns included the Port's conduct at meetings, misrepresentation of community viewpoints, and a general feeling among city residents that their participation was being used to rubber-stamp Port decisions rather than genuinely influence them.

Gresham Smith engineers prepared this March 2024 technical memo for the Port of Seattle, analyzing cost-saving alternatives for planned upgrades to Seattle-Tacoma International Airport's Industrial Wastewater Treatment Plant (IWTP). The study evaluated options for managing airport deicer runoff while maintaining compliance with water discharge permits, using 52 years of historical weather data to simulate system performance. Note: despite its placement in an airport policy archive, this document addresses industrial wastewater and stormwater management rather than noise policy.

This technical report, prepared by Landrum & Brown for the Port of Seattle in March 2024, analyzes air quality and greenhouse gas emissions associated with near-term projects in the Sustainable Airport Master Plan for Sea-Tac Airport. It covers emission sources including aircraft, ground support equipment, stationary and mobile sources, and construction activities. Note that following changes to federal executive orders and a 2025 Supreme Court ruling, references to climate change preparedness and cumulative impact analysis were removed from the final version, leaving only the quantified GHG emissions disclosures.

This Noise Technical Report, prepared by Landrum & Brown for the Port of Seattle in March 2024, analyzes noise impacts associated with near-term construction and development projects outlined in the Sustainable Airport Master Plan for Seattle-Tacoma International Airport. The report is part of Appendix J, which covers noise and noise-compatible land use, and was developed to satisfy both federal (NEPA) and state (SEPA) environmental review requirements. It provides technical findings to help assess how proposed airport improvements may affect noise levels in surrounding communities.

This March 2024 technical report, prepared by Landrum & Brown for the Port of Seattle, assesses air quality and climate impacts associated with near-term construction and operational projects outlined in the Sustainable Airport Master Plan for Seattle-Tacoma International Airport. It analyzes emissions from sources including aircraft, ground support equipment, stationary and mobile sources, auxiliary power units, and construction activities. The report follows NEPA air quality and climate protocols to evaluate potential environmental effects of planned airport improvements.

Appendix C of the Sea-Tac Sustainable Airport Master Plan covers air quality and greenhouse gas emissions analyses prepared for the Port of Seattle by Landrum & Brown. It includes technical reports on emissions from aircraft, ground support equipment, construction, and other airport sources, as well as a human health risk assessment focused on ultrafine particles. Note that some climate-related sections originally included in the Draft Environmental Assessment were later removed following changes to federal executive orders and a 2025 Supreme Court ruling.

This Noise Technical Report, prepared by Landrum & Brown for the Port of Seattle in March 2024, analyzes noise impacts associated with near-term projects outlined in the Sustainable Airport Master Plan for Seattle-Tacoma International Airport. It is part of a broader Appendix J covering noise and noise-compatible land use, which also includes a Noise Modeling Protocol and a Construction Noise Technical Report. The report provides technical assessments to support planning decisions related to aircraft and construction noise in communities surrounding Sea-Tac Airport.

This Noise Technical Report, prepared by Landrum & Brown for the Port of Seattle in March 2024, analyzes noise impacts associated with near-term construction and development projects outlined in the Sustainable Airport Master Plan for Seattle-Tacoma International Airport. The report is part of a broader Appendix J covering noise and noise-compatible land use, which also includes a Noise Modeling Protocol and a Construction Noise Technical Report. Together, these documents provide technical assessments to guide planning decisions that balance airport operations with the noise concerns of surrounding communities.

This contract amendment extends the agreement between the City of Des Moines, Washington, and Vianair, Inc., an aviation consulting firm, through December 31, 2025. The amendment, signed in early 2024, builds on an original contract from July 2017 that had previously been amended three times. Vianair likely provides noise analysis or air traffic consulting services related to Sea-Tac Airport on behalf of the City.