TagSAMP Draft EA(31)

Quiet Skies Puget Sound presented concerns to the Aviation Committee 2.0 about the Sea-Tac Airport Master Plan (SAMP) draft Environmental Assessment, warning that 87,000 additional annual flights would pose serious public health risks to children, the elderly, and environmental justice communities. The group criticized the Port for failing to provide meaningful collaboration or mitigation across 4,600 pages of documentation, and argued that community forums like StART and the Highline Forum have been treated as mere formalities. On a positive note, the group highlighted growing opposition to the SAMP from the EPA, local cities, advocacy groups, and elected officials, as well as a favorable legal and regulatory environment for challenging the airport's expansion plans.

Seatac Airport neighbor Stuart Jenner submitted public comments in December 2024 criticizing the Port of Seattle's Sustainable Airport Master Plan (SAMP), arguing that citizens were given inadequate time to review over 4,000 pages of documents and that an Environmental Impact Statement—not merely an Environmental Assessment—is needed to properly evaluate the plan's effects on nearby residents. Jenner raises concerns about opaque computer models used to claim a nearly 50% increase in passenger traffic would have no environmental impact, shifting baseline comparisons that ignore past promises made during the third runway approval, and the absence of project cost information. He calls on Port Commissioners and the FAA to extend the public comment period and subject the plan to greater independent scrutiny.

The City of Des Moines, Washington submitted formal comments to the Port of Seattle in December 2024, raising concerns about the environmental and health impacts of Seattle-Tacoma International Airport's planned growth. The city warns that by 2032, annual flight operations will increase by nearly 20%, expanding the noise exposure zone and raising the number of residents affected by significant aircraft noise from roughly 14,000 to nearly 22,000—with most of that burden falling on Des Moines residents. The letter calls on the Port and FAA to extend public comment periods, pursue meaningful noise mitigation measures such as sound insulation for homes and schools, and engage more collaboratively with impacted communities rather than treating public review as a formality.

The City of Tukwila submitted formal comments on December 13, 2024, objecting to SeaTac Airport's Sustainable Airport Master Plan Draft Environmental Assessment (SAMP Draft EA), arguing that the study area is too narrow, covering only 3,692 acres, and fails to account for broader impacts on surrounding communities including increased traffic, air quality degradation, and noise under flight paths. The city contends that proposed mitigation measures are inadequate and that the assessment ignores equity and social justice concerns affecting the low-income, diverse communities near the airport. Tukwila is calling for a full Environmental Impact Statement with an expanded General Study Area that includes the entire city and broader South King County region.