The Port of Seattle responded in October 2019 to detailed questions from the City of Burien about aircraft noise management at Sea-Tac Airport, addressing concerns about noise studies, abatement procedures, sound insulation programs, and community engagement. The Port defended its 2014 Part 150 noise study as covering all three runways and argued that improved aircraft technology has actually reduced the noise-impacted area since the previous study. It also outlined ongoing mitigation efforts, including a Late-Night Noise Limitation Program, over $300 million spent on sound insulation for thousands of homes, and the upcoming Sustainable Airport Master Plan environmental review, which will reassess noise impacts across all runways.Open full document
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The Port of Seattle provides detailed responses to five questions posed by the City of Burien regarding aircraft noise studies, noise abatement procedures, program audits, the Part 150 Study, and StART committee meeting procedures. The Port defends its noise mitigation record, explains the scope of the 2014 Part 150 update, and outlines planned environmental reviews under the Sustainable Airport Master Plan. The document also addresses community concerns about transparency and the pace of sound insulation programs.