Sharyn's analysis of Sea-Tac operational levels and noise modeling concerns

A Burien Airport Committee member named Sharyn argues that Sea-Tac Airport's 2013 Part 150 noise study is dangerously outdated, as actual flight operations have been growing at roughly 9% per year — far outpacing the Port's own projections. Her analysis suggests Sea-Tac will reach its 2034 capacity forecast as early as 2020, meaning real noise impacts on surrounding communities like Seahurst are already well beyond what official noise maps show. She calls on the City of Burien to demand that the Port update its noise modeling immediately rather than waiting until after 2021.

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A letter from Sharyn to the Burien Airport Committee responding to a request from Nancy to review attachments from July’s meeting, including Debbie’s Sea-Tac history summary and Tony Piasecki’s white paper outline notes. Sharyn presents an analysis showing that Sea-Tac’s actual operational growth rate of 9% annually (2013-2016) means the airport will reach its 2034 projected capacity by 2020, far ahead of schedule. She argues the Port’s Part 150 noise modeling is woefully outdated and demands updated noise maps, calling the Port’s continued reliance on the 2013 Part 150 Study fraudulent.

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