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City of Sea-Tac Ordinance: Interlocal Agreement Amendment with Burien and Des Moines for SAMP Outside Legal Counsel and 2025-2026 Budget Amendment

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The City of SeaTac is authorizing its City Manager to join an updated cost-sharing agreement with Burien and Des Moines to hire outside legal counsel in response to the FAA's September 2025 environmental review of the Port of Seattle's Sustainable Airport Master Plan (SAMP). The cities are concerned that their comments about the airport's potential negative impacts were not adequately addressed in the FAA's Final Environmental Assessment and Finding of No Significant Impact. To fund the legal effort, SeaTac is amending its 2025–2026 budget by adding $350,000 in expenditures and $253,000 in shared revenues to its Port ILA Fund.

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City of SeaTac ordinance authorizing the City Manager to sign an amended Interlocal Agreement (ILA) with the Cities of Burien and Des Moines to jointly retain outside legal counsel — Leech Tishman and Ogden Murphy Wallace — related to the Port of Seattle’s Sustainable Airport Master Plan (SAMP) and FAA NEPA/SEPA environmental review. The ordinance responds to the FAA’s September 2025 Final Environmental Assessment (FEA), Record of Decision (ROD), and Finding of No Significant Impact (FONSI), which SeaTac believes inadequately addressed comments from SeaTac and the Four Cities (SeaTac, Burien, Des Moines, Normandy Park). City of Normandy Park declined to join. Amends the 2025-2026 Biennial Budget by increasing expenditures in Port ILA Fund (105) by $350,000 and revenues by $253,000. Reviewed by Planning and Economic Development Committee on October 16, 2025.

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