Notes
References chapter (Chapter 6, sections 6.1–6.3) from the May 2026 Draft Environmental Impact Statement (EIS) prepared under the State Environmental Policy Act (SEPA) for the Seattle-Tacoma International Airport Sustainable Airport Master Plan (SAMP) Near-Term Projects. Cites sources for Chapters 1, 2, and 3, including RCW 43.21C, WAC 197-11, FAA Advisory Circular AC 150/5300-13B (Airport Design), FAA Orders 1050.1F and 5050.4B, IATA Airport Development Reference Manual (11th Edition), Puget Sound Regional Council Regional Aviation Baseline Study, Leigh Fisher Technical Memoranda (Nos. 5, 6, 7, 9), Ricondo & Associates Terminal Needs Assessment, EPA NAAQS table, King County Greenhouse Gas Emissions inventory, WDFW Priority Habitats and Species Database, WDNR Natural Heritage Program, USGS stratigraphy reports, USDA King County Soil Survey, and Climate Impacts Group Washington State biophysical climate risks study. Port of Seattle document.