The cities of Burien, Des Moines, Normandy Park, and SeaTac are proposing a formal Interlocal Agreement to coordinate their response to the Port of Seattle's Sustainable Airport Master Plan (SAMP), which could bring significant growth and environmental impacts to surrounding communities over the next 20 years. Under the agreement, the four cities would jointly hire consultants and legal counsel to review environmental documents, submit formal comments during the SEPA and NEPA review processes, and potentially mount legal challenges to FAA or Port decisions. Burien's share of costs is estimated at approximately $100,000.Open full document
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An agenda bill from the City of Burien’s November 3, 2025 City Council meeting proposing a new Interlocal Agreement (ILA) with the Cities of Des Moines, Normandy Park, and SeaTac to coordinate review, analysis, and response to environmental processes related to the Sea-Tac Airport Sustainable Airport Master Plan (SAMP). The agreement would allow the four cities to jointly hire consultants and legal counsel to evaluate SEPA and NEPA environmental review processes and pursue potential legal challenges. The fiscal impact to Burien is estimated at approximately $100,000.