Notes
Chapter 2 of the Draft SEPA Environmental Impact Statement (EIS) for Seattle-Tacoma International Airport (Sea-Tac Airport) Sustainable Airport Master Plan (SAMP) Near-Term Projects, prepared by Port Of Seattle, dated May 2026. Covers the two-step alternatives screening process under WAC 197-11 and RCW 43.21C, the No Action Alternative, and Table 2.3-1 evaluating scoping-suggested alternatives including Phased Construction of Passenger Gates, Terminal Processing Facilities, Roadway and Curbside Changes, Fully Comply with Taxiway Separation Requirements (500-foot separation Runway 16L/34R and Taxiway B), Limited or Reduced Growth, Use of Other Existing Airports, Build a New Airport, Utilize Other Modes of Transportation (high-speed rail, hyperloop), North Employee Surface Parking Lot L06/L07, and Terminal Connection (secure-side Concourse D). Alternatives analysis by Landrum & Brown, 2020. References Alternatives 1-B, 1-E, 3-C2, North Satellite, International Arrivals Facility, C Concourse Expansion, and 56 MAP level of service (LOS).