TagPart 150(262)

This July 2019 briefing presented to the Highline Forum outlines Sea-Tac Airport's sound mitigation efforts under the FAA's Part 150 program, a voluntary federal framework that helps airports address noise and land use conflicts while qualifying for up to 80% federal grant funding. Sea-Tac's program, which began in 1985 and has undergone three updates (most recently in 2014), has involved extensive public outreach including workshops, city council presentations, and community forums. The briefing highlights that Sea-Tac Airport has been actively working to reduce aviation noise impacts on surrounding communities for more than 30 years.

The Seattle-Tacoma International Airport (Sea-Tac) Part 150 Noise and Land Use Compatibility Study, approved by the Port of Seattle Commission in October 2013 and later by the FAA, aims to identify and reduce aircraft noise impacts on surrounding communities. The study developed noise exposure maps for 2013 and projected 2018 conditions, evaluated air traffic control procedures, and considered land use controls to limit noise-sensitive development in high-noise areas. Sea-Tac is recognized for having one of the most comprehensive airport noise reduction programs in the nation, with measures including a 'fly-quiet' program and sound insulation assistance for affected residents.

This document contains the agenda and draft minutes for the Burien Airport Committee meeting held on July 30, 2019, focused on community concerns about Sea-Tac Airport. Key topics included draft letters to Senator Keiser and Congresswoman Jayapal regarding FAA questions, ongoing discussions about FAA Part 150 noise mitigation options, and the Port of Seattle's Sustainable Airport Master Plan (SAMP). The committee also discussed coordinating with the Des Moines Aviation Advisory Committee and reviewed notes from recent stakeholder meetings with airport planning consultants.

The Burien Quiet Skies coalition compiled this 2019 document comparing FAA and Port of Seattle noise abatement commitments against actual progress, revealing decades of unmet promises dating back to 1985. Key concerns include hundreds of homes left uninsulated or poorly insulated, a 12-year gap in required noise modeling data, and noise levels in some Burien neighborhoods now exceeding the 65 dB threshold that triggers mitigation eligibility. The document calls on the FAA to hold the Port of Seattle accountable for failing to implement long-recommended noise reduction measures and for significantly underestimating flight operations and their impact on surrounding communities.

The Burien Airport Committee met on June 18, 2019 to discuss airport noise and planning issues related to Seattle-Tacoma International Airport, including debriefing on recent stakeholder meetings with consultants Stantec and Lockridge Grindal Nauen, and a Port of Seattle presentation to Burien City Council. The committee considered potential letters to the Port of Seattle, Senator Karen Keiser, and the FAA regarding concerns about the Sustainable Airport Master Plan (SAMP) and Part 150 noise study noncompliance. Members also reviewed research on airport governance structures and complaint processes at large airports across the country.

A consulting team addresses two community concerns about Seattle-Tacoma International Airport: the lack of a direct NEPA environmental review covering noise impact growth between 2012 and 2018, and questions about how the airport's third runway is being used. The document explains that while current NEPA and Part 150 processes will capture existing noise conditions, they will not specifically compare 2012 versus 2018 impacts, and that federally funded runways like the third runway must be made available whenever air traffic control deems it necessary. The consultants propose reviewing historical Part 150 studies, past NEPA documents, and third-runway records to assess noise impacts on surrounding communities, while also supporting clients in engaging the Port, FAA, and airlines through the StART committee and other channels.

In a May 2019 email, community advocate Sheila Brush shares meeting notes with colleagues outlining key arguments for why Sea-Tac Airport's Part 150 noise compatibility study may be out of compliance, including concerns about lack of transparency in the public scoping process and the unstudied noise impacts of a third runway. The notes also raise questions about whether the Port's plan to fold portions of the Part 150 study into the SAMP and SEPA/EIS processes is appropriate, and whether the EPA's lack of sign-off on the previous study is relevant. Brush expresses gratitude to Sharyn Parker for taking on the effort to formally request a compliance assessment from the FAA.

Lockridge Grindal Nauen P.L.L.P. submitted a $2,231.25 invoice to the City of Burien for 12.75 hours of legal and research work performed between October and December 2018, covering topics such as SEA airport noise programs, Part 150 studies, economic impacts, and community engagement strategy. The City of Burien initially questioned the invoice because a prior email had indicated no authorized work past September 25, 2018, but the City of SeaTac's Community & Economic Development Director confirmed via email that the matter had been clarified and directed Burien to proceed with payment. The work was conducted under an environmental/airport consulting contract running from June 2018 through the end of 2019.