
This document summarizes environmental resource categories (Air Quality, Climate, Noise and Noise-Compatible Land Use) with less than significant impacts under three alternatives for Seattle-Tacoma International Airport (SEA), comparing No Action, Proposed Action, and Hybrid Terminal Option. It also outlines cumulative impacts definitions, noting no significant impacts, with past projects defined as 2017–2021, present projects as 2022–2025, and reasonably foreseeable future projects as 2026–2032 per SEA's Capital Improvement Plan (CIP).Open full document
Notes
This document summarizes environmental resource categories (Air Quality, Climate, Noise and Noise-Compatible Land Use) with less than significant impacts under three alternatives for Seattle-Tacoma International Airport (SEA), comparing No Action, Proposed Action, and Hybrid Terminal Option. It also outlines cumulative impacts definitions, noting no significant impacts, with past projects defined as 2017–2021, present projects as 2022–2025, and reasonably foreseeable future projects as 2026–2032 per SEA’s Capital Improvement Plan (CIP).