City of Tukwila Comment Letter on Sea-Tac Airport Sustainable Airport Master Plan Draft Environmental Assessment

The City of Tukwila submitted formal comments on December 13, 2024, objecting to SeaTac Airport's Sustainable Airport Master Plan Draft Environmental Assessment (SAMP Draft EA), arguing that the study area is too narrow, covering only 3,692 acres, and fails to account for broader impacts on surrounding communities including increased traffic, air quality degradation, and noise under flight paths. The city contends that proposed mitigation measures are inadequate and that the assessment ignores equity and social justice concerns affecting the low-income, diverse communities near the airport. Tukwila is calling for a full Environmental Impact Statement with an expanded General Study Area that includes the entire city and broader South King County region.

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Comment letter dated December 13, 2024, from Brandon J. Miles, Director of Strategic Initiatives and Government Relations for the City of Tukwila, addressed to Steve Ryboldt at Port Of Seattle Aviation Environment and Sustainability, regarding the Sustainable Airport Master Plan (SAMP) Draft Environmental Assessment (Draft EA). The City of Tukwila argues the General Study Area (GSA) of 3,692 acres is too small and fails to account for impacts on South King County, including traffic on city streets and air quality impacts beneath flight paths. The letter requests a full Environmental Impact Statement (EIS) and expansion of the GSA to include all of Tukwila. The City also contends the SAMP Draft EA fails to address environmental justice and equity concerns in a community with per capita income nearly half of King County’s, citing the Port’s own stated commitments. References the City’s 2018 Scoping Letter dated September 27, 2018, and SAMP Draft EA page 3-56.

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