TagEnvironmental Impact Statement(140)
-
2026-05-08
Sustainable Airport Master Plan near-term projects environmental review – SEPA draft environmental impact statement and public comment period
This Commission agenda memorandum briefing provides an overview of the SEPA Draft Environmental Impact Statement (DEIS) findings for the Sustainable Airport Master Plan (SAMP) Near-Term Projects, to be published May 22, 2026. The DEIS evaluated sixteen environmental resource categories, identifying significant but mitigable impacts to surface transportation. The briefing also outlines a 60-day public comment -
Sustainable airport master plan near term projects state environmental policy act draft environmental impact statement and next steps page 3 1
A slide titled 'SAMP Near-Term Projects' presents an aerial map of Seattle-Tacoma International Airport identifying planned near-term capital improvements including a Second Terminal, North Gates, Taxiway A/B and D Extensions, Runway Blast Pads, Hardstand areas (Central and North), Busway and Stations, Roadway Improvements, Fuel Farm Expansion, ARFF Relocation, Westside Maintenance Campus, C4S Warehouse Redevelopment, Off-site Cargo, and a Centralized Receiving and Distribution Facility. The slide is labeled page 3 and uses a color-coded legend distinguishing new terminal, maintenance, cargo, support facilities, hardstand pad, existing buildings, new pavement, and demolition areas. -
Sustainable airport master plan near term projects state environmental policy act draft environmental impact statement and next steps page 13
A project timeline slide showing the environmental review process for a Sea-Tac Airport project, currently at the Draft SEPA EIS Publication stage (5/22/26). Key milestones include the Final NEPA FEA & Decision (9/26/25), Draft SEPA EIS Agency & Public Review, Final SEPA EIS & SEPA Decision (Q4 2026), and Commission Action Required for NTP(s) approval in 2027. -
Sustainable airport master plan near term projects state environmental policy act draft environmental impact statement and next steps page 3
A slide titled 'SAMP Near-Term Projects' presents an aerial map of Seattle-Tacoma International Airport identifying planned near-term capital improvements including a Second Terminal, North Gates, Taxiway A/B and D Extensions, Runway Blast Pads, Hardstand areas (Central and North), Busway and Stations, Roadway Improvements, Fuel Farm Expansion, ARFF Relocation, Westside Maintenance Campus, C4S Warehouse Redevelopment, Off-site Cargo, and a Centralized Receiving and Distribution Facility. The slide is numbered page 3 and uses a color-coded legend distinguishing new terminal, maintenance, cargo, support facilities, hardstand pads, existing buildings, new pavement, and demolition areas. -
2026-04-01
Sustainable airport master plan near-term projects state environmental policy act draft environmental impact statement and next steps
The Port of Seattle is advancing a set of Near-Term Projects under its Sustainable Airport Master Plan (SAMP) for Seattle-Tacoma International Airport, covering infrastructure improvements such as new gates, taxiway extensions, runway blast pads, and cargo facilities. The plan is subject to both federal (NEPA) and state (SEPA) environmental review, with a Draft Environmental Impact Statement being prepared to assess potential impacts. Public and regulatory next steps include finalizing the EIS and communicating outcomes to stakeholders and surrounding communities. -
2026-04-01
Sustainable airport master plan near-term projects state environmental policy act draft environmental impact statement and next steps
The Port of Seattle is advancing a set of Near-Term Projects under its Sustainable Airport Master Plan (SAMP) for Seattle-Tacoma International Airport, covering infrastructure improvements such as new gates, taxiway extensions, runway blast pads, and cargo facilities. The plan is subject to both federal (NEPA) and state (SEPA) environmental review, with a Draft Environmental Impact Statement being prepared to assess potential impacts. Public and regulatory next steps include finalizing the EIS and communicating outcomes to stakeholders and surrounding communities. -
2026-03-24
Port Of Seattle regular commission meeting agenda, March 24, 2026
This document is the agenda for the Port of Seattle Regular Commission Meeting held on March 24, 2026, covering routine governance matters such as approval of meeting minutes, claims and obligations totaling over $144 million, and several authorization requests for contracts and collective bargaining agreements. The meeting was held both in person at Seattle-Tacoma International Airport and virtually via Microsoft Teams. No specific noise policy items appear on this agenda; primary topics include environmental support contracts, a water reservoir rehabilitation project, Oracle software licensing, and labor agreements for airport staff. -
CEQ Scoping for Cumulative Effects
This document outlines principles and steps for conducting cumulative effects analysis in environmental impact assessments. It covers identifying cumulative effects issues, establishing geographic and temporal boundaries, and determining which effects are important from a cumulative perspective. https://ceq.doe.gov/docs/ceq-publications/ccenepa/sec2.pdf -
2026-01-07
Introduction to Cumulative Effects Analysis
This document introduces the concept of cumulative environmental effects analysis under NEPA, explaining how multiple minor actions can combine to create significant environmental impacts. It defines cumulative effects as impacts resulting from incremental effects of actions combined with past, present, and future actions, and discusses the purpose and implementation of cumulative effects analysis by federal -
2026-01-06
Response to comments on the Sea-Tac/Communities Plan Draft Environmental Impact Statement
This document is a formal response to public comments on the Sea-Tac/Communities Plan Draft Environmental Impact Statement, addressing concerns about the airport's Noise Remedy Program. It explains that noise program classifications for petition signers were upgraded due to factors such as summer flight patterns and proximity to approach paths, and that most signers were moved into the Purchase Guarantee area or recommended for the Cost Sharing Insulation Program. The response also notes that no specific schedule exists for noise remedy implementation due to uncertainties in federal funding, and that detailed land-use planning for acquisition areas will involve full citizen participation after properties are acquired.