The Washington State Department of Commerce's Technical Advisory Committee (TAC) reviewed 72 recommendations from a study on Sea-Tac Airport's impacts on neighboring cities, ultimately prioritizing 13 key next steps. These priorities span public health, air quality, noise and vibration, mobility, and environmental concerns, including expanding late-night noise limits, improving air quality monitoring, and developing alternative noise metrics beyond standard day-night average (DNL) contours. The TAC also recommended revising the report's language around the Port of Seattle's airport expansion plans to reflect that the proposal was still under FAA review at the time of publication.Open full document
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The Washington State Department of Commerce Technical Advisory Committee (TAC) reviewed 72 recommendations from a study on Sea-Tac Airport’s impacts on neighboring cities and prioritized 13 specific next steps across public health, air quality, noise and vibration, mobility, and surface water/groundwater/soils. The TAC also recommended a revision to the report’s characterization of the Port of Seattle’s airport expansion plans, as the proposal was still under FAA review.