Comments on the Sea-Tac Airport Master Plan EIS Due August 20, 2026

A concerned resident living near Sea-Tac Airport submitted formal comments arguing that the airport's Master Plan Environmental Impact Statement (EIS) is deeply flawed, citing inconsistent data, outdated figures, lack of cumulative impact analysis, and poor document organization across its 6,000 pages. The commenter contends that the EIS fragments project reviews to minimize apparent harm, uses selectively chosen baselines to downplay environmental and health impacts on surrounding communities, and fails to address a full build-out scenario. The primary demand is that the EIS be completely redone with transparent assumptions, holistic cumulative impact analysis, up-to-date data, and accessible cross-referenced documentation.

Notes

Public comment letter by a concerned resident living west of Sea-Tac Airport on the SEPA Draft EIS for the Sustainable Airport Master Plan (SAMP). Author S. Jenner argues the EIS should be entirely redone, citing failure to assess cumulative impacts, absence of a full buildout scenario, inconsistent baseline starting points, outdated data (some from 2022 COVID recovery period), no analysis of the International Arrivals Facility, fragmented project-by-project rather than holistic impact assessment, and lack of searchable cross-linked document structure. Criticizes Commissioner Fred Felleman’s characterization of environmental justice and cumulative impacts as ‘small items,’ and calls out Port Of Seattle for omitting human health risks, real costs, and full-buildout projections. References closure of 24th Avenue South, Chapter 5 scope limitations, and bond buyer demand forecasts.

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