TagEIS(62)
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1997-02-01Sea-Tac International Airport impact mitigation study: Initial assessment and recommendations
★ 32The HOK Study. 1997 initial assessment and recommendations report for the Sea-Tac International Airport Impact Mitigation Study, prepared by Hellmuth, Obata + Kassabaum and Raytheon Infrastructure Services. The study was funded by a State of Washington grant on behalf of the cities of Burien, Des Moines, Federal Way, Normandy Park, and Tukwila, as well as -
Sea-Tac-Airport-Final-EIS-Feb.-1996-Vol
This page is from the Executive Summary of the Sea-Tac Airport Master Plan Update Final Environmental Impact Statement (EIS), discussing noise mitigation strategies including sound insulation, noise budget limits, nighttime limitations, flight corridorization, and land acquisition in the Approach Transitional Area. It estimates acquisition and relocation costs for approximately 309 residential homes and multi-family buildings at roughly $35 million, referencing an FAA Memorandum dated April 30, 1991. -
SAMP Near-Term Projects Aerial Map — SEPA Draft EIS
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. -
SAMP Near-Term Projects Aerial Map — SEPA Draft EIS
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. -
2026-04-01SAMP Near-Term Projects Draft SEPA EIS and Next Steps — StART Presentation
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. -
2026-01-16Airport Advisory Committee 2026 Workplan
The Des Moines Airport Advisory Committee's draft 2026 Workplan outlines key priorities including air quality monitoring, the SEA Airport Part 150 noise study, traffic impacts, and projected increases in airport operations. The plan addresses noise mitigation measures and public education related to Seattle-Tacoma International Airport's expansion, with 2032 DNL noise contours showing affected residential and commercial areas in Des Moines reaching up to 75 decibels. This workplan reflects the committee's efforts to protect community health and quality of life amid growing airport activity. -
SAMP Draft EA: How to provide a great public comment
1How to provide effective public comment by December 13, 2024 Because new ways for you to participate will likely become available, this article may be subject to updates. Introduction This is the second of a two-part article concerning the Sustainable Airport Master Plan Draft Environmental Assessment (SAMP Draft EA). If you’re looking for the short -
2024-10-01Aqueous Film-Forming Foam Collection and Disposal Program: Final Programmatic Environmental Impact Statement
This October 2024 report from the Washington State Department of Ecology examines options for collecting and disposing of Aqueous Film-Forming Foam (AFFF), a firefighting chemical that contains harmful PFAS compounds. The Final Programmatic Environmental Impact Statement evaluates the potential environmental effects of different collection and disposal methods for this toxic foam, which has historically been used at airports and military facilities. It is published by Ecology's Hazardous Waste and Toxics Reduction Program and is unrelated to airport noise policy. -
The SAMP Comment Period Explainer (Intro)
Preparing for the October 21st Comment Period This is the first of a two-part article concerning the SAMP comment period. We’re including a few paragraphs of background because the process has been so lengthy–with many years of delay. The feedback we’ve received thus far has been confusion, partly because the information on the Port’s official -
2024-05-22Highline Forum SAMP NTP Environmental Review Overview — Project Schedule Slide (Page 7, May 2024)
A project schedule slide showing key milestones for NEPA Environmental Assessment (EA) and SEPA Environmental Impact Statement (EIS) processes, spanning August 2023 through 2026. Milestones include Impact Analysis Draft Sections (June 2024), NEPA EA Draft Document Agency and Public Comment Period (Q4 2024), NEPA EA Final Document and Decision (Early Q2 2025), SEPA EIS Draft Document Agency and Public Comment Period (Late Q2 2025), SEPA EIS Agency and Public Review Complete (Mid Q3 2025), SEPA EIS Final Document and Decision (Q4 2025), and Commission consideration/approval of project(s) in 2026.