TagEnvironmental Impact Statement(325)

In September 2018, Alaska Airlines submitted formal comments to the Port of Seattle during the scoping phase of Sea-Tac Airport's Sustainable Airport Master Plan (SAMP), urging the Port to conduct a full Environmental Impact Statement (EIS) rather than a less rigorous Environmental Assessment (EA). The airline argued that an EIS would better withstand legal challenges, produce more meaningful public input, and ultimately be more cost-effective by reducing litigation risk. Alaska Airlines also called on the Port to broaden the range of alternatives under consideration beyond just North Terminal options, since the SAMP's stated purpose addresses airport-wide concerns.

The Burien Airport Committee met on September 18, 2018 to discuss ongoing efforts to address noise and environmental impacts from Sea-Tac Airport, including a legal challenge to the FAA's approval of a 250-degree flight heading over Burien and community engagement in the airport's Sustainable Airport Master Plan (SAMP) environmental review process. The agenda also covered coordination with neighboring cities, a Washington State airport impacts study, and updates on sound insulation programs. Draft minutes from the July 17, 2018 meeting were included, documenting a presentation on environmental justice concerns related to airport noise affecting minority and low-income communities.

The Burien Aviation Advisory Committee met on September 17, 2018 to discuss the Port of Seattle's Sustainable Airport Master Plan (SAMP) and its environmental review process. Key topics included a poorly-received public scoping meeting at Highline College that drew over 300 attendees, and the committee's review of draft scoping comments to be submitted jointly by the cities of Burien, Des Moines, Normandy Park, and SeaTac. The committee agreed to present a formal letter of scoping comments to City Council on September 27, 2018, ahead of the September 28 submission deadline.

The Port of Seattle outlined an environmental review schedule for the NTP (Noise Trajectory Program) at Seattle-Tacoma International Airport, spanning 2018 to 2019. Key steps included public scoping meetings held in September 2018 in cities such as Des Moines, Seattle, Federal Way, and Sea-Tac, followed by environmental analysis and the release of draft and final NEPA/SEPA documents through late 2019. Community members could submit scoping comments by September 28, 2018, via the project website, email, mail, or in person at scoping meetings.

The Federal Way Mayor's Quiet and Healthy Skies Task Force Report, published August 2, 2018, examines how increased flight operations and Sea-Tac International Airport's third runway have worsened aircraft noise and air pollution for Federal Way residents. The report evaluates potential remedies such as changes to flight paths, glide slopes, and schedules, while also analyzing legal authority over cargo flight curfews and reviewing the airport's Sustainable Airport Master Plan. It concludes with recommendations aimed at reducing the disproportionate noise and health burdens placed on Federal Way communities.

The Port of Seattle is conducting an environmental review of near-term construction projects at Seattle-Tacoma International Airport (Sea-Tac) planned through 2027, as part of the Sustainable Airport Master Plan (SAMP). Key planned improvements include a second terminal, a centralized maintenance campus, off-airport cargo facilities, and roadway and fueling expansions to accommodate up to 477,000 annual flights and 56 million passengers. A full Environmental Impact Statement (EIS) under Washington State's SEPA, as well as a federal Environmental Assessment under NEPA led by the FAA, are being prepared to evaluate potential environmental impacts.

Passed before 3rd Runway

This 2018 technical memorandum prepared by Leigh Fisher for the Port of Seattle provides an environmental overview of Seattle-Tacoma International Airport as part of its Sustainable Airport Master Plan. It examines existing environmental conditions across topics such as air quality, noise, water resources, biological resources, and hazardous materials, then assesses how the airport's near-term construction and improvement projects could affect those resources. The document is intended to guide planners in understanding potential environmental impacts — including noise and compatible land use — before major airport development decisions are finalized.

The cities of Burien, Des Moines, Normandy Park, and SeaTac entered into a formal interlocal agreement to coordinate their review of the Port of Seattle's Sustainable Airport Master Plan (SAMP), which outlines airport growth over the next 20 years. The agreement establishes a shared process for hiring and funding consultants, issuing joint comment letters, and responding to environmental documents produced under NEPA and SEPA. Contract administration is led by the City of SeaTac, while fiscal management is handled by the City of Burien.

Four cities near Sea-Tac Airport — Burien, Des Moines, Normandy Park, and SeaTac — entered into a formal interlocal agreement in 2018 to coordinate their review of the Port of Seattle's Sustainable Airport Master Plan (SAMP), a 20-year airport growth proposal with potential significant noise and environmental impacts on surrounding communities. The agreement establishes a shared process for hiring consultants, pooling funding, and submitting unified comment letters during the NEPA and SEPA environmental review processes. It covers the period from March 2018 through December 2020 and is governed by Washington State's Interlocal Cooperation Act (RCW 39.34).