This 1996 Final Environmental Impact Statement, prepared by the Port of Seattle and the Federal Aviation Administration, evaluates proposed improvements at Seattle-Tacoma International Airport through the year 2020, including the construction of a third parallel runway, terminal expansions, and parking upgrades. The document assesses a range of environmental impacts such as noise, air and water quality, wetlands, and floodplain encroachment resulting from the planned development. It was prepared in compliance with both the National Environmental Policy Act and Washington State Environmental Policy Act.Open full document
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This is Volume 4 of 7 of the Final Environmental Impact Statement (EIS) for the proposed Master Plan Update at Seattle-Tacoma International Airport, covering Appendices Q-A through S, specifically Water Studies. The document addresses proposed airport improvements including a third parallel runway, terminal expansions, and other infrastructure developments planned for the 1996-2020 period. It serves as a combined NEPA and Washington State SEPA document prepared by the Port of Seattle and the Federal Aviation Administration.