Des Moines Aviation Advisory Committee 2026 Workplan

This workplan outlines a community committee's priorities for addressing the impacts of Sea-Tac Airport's expansion on Des Moines, Washington. Key goals include expanding air quality monitoring, hiring a toxicologist to evaluate the airport's environmental impact statement, researching noise mitigation alternatives beyond sound insulation, and pushing for a more thorough traffic analysis. The committee also plans to conduct a community survey in 2026 to gauge public awareness of the airport's Sustainable Airport Master Plan (SAMP) and guide future outreach efforts.

Notes

2026 workplan for the Des Moines Aviation Advisory Committee addressing airport-related environmental and community impacts. Covers four priority areas: (1) air quality monitoring system expansion and permanent funding, toxicologist addition to the SAMP SEPA Draft Environmental Impact Statement (EIS) response team, and City of Des Moines comments to the SAMP Draft EIS; (2) Part 150 Study noise mitigation concerns including sound insulation de-emphasis, land use designation changes, eminent domain as alternative mitigation, and public education on Sea-Tac Airport impacts; (3) SAMP NEPA traffic analysis gaps — notes 10 Category 1 Impact intersections none in Des Moines — and advocacy for comprehensive SEPA traffic analysis including WSDOT HWY 509 project impacts; (4) community survey planned for mid-2026 to gauge awareness of SAMP and projected airport operations growth over 7–12 years.

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