• 2020-05-29

    Stantec Sea-Tac Airport Communities Impact Study: Appendix A, Section 5 – Noise & Vibration

    Appendix A, Section 5 (pages 61–99) of the Stantec 2019/2020 Department of Commerce Sea-Tac Airport Communities Impact Study, dated 29 May 2020. Covers noise and vibration effects of Seattle-Tacoma International Airport operations from 1997 to 2019. Topics include aircraft noise metrics (Lmax, SEL, DNL), A-weighted decibel (dBA) scale, Day-Night Average Sound Level (DNL), Sound Exposure
  • 2020-05-19

    Burien Airport Committee meeting agenda, May 19, 2020

    The Burien Airport Committee held a virtual meeting on May 19, 2020, to discuss airport-related policy matters, including a proposed letter to Port Commissioners about a 'new normal' for airport operations, comments on a Department of Commerce report, and a possible invitation to an FAA Community Ombudsperson. Draft minutes from the April 21, 2020 meeting were also reviewed, covering Chair Tosta's Washington, D.C. visit to advocate for a comprehensive cumulative impact assessment of the Port of Seattle's Sustainable Airport Master Plan (SAMP). The meetings, held via Zoom due to COVID-19 restrictions, reflect ongoing community and city council efforts to address noise and environmental concerns related to Sea-Tac Airport.
  • 2020-04-21

    Letter to FAA Administrator Steve Dickson regarding SeaTac Airport environmental assessment

    In April 2020, U.S. Representatives Pramila Jayapal, Adam Smith, and Rick Larsen wrote to FAA Administrator Steve Dickson urging a full Environmental Impact Statement (EIS) for the Port of Seattle's Sustainable Airport Master Plan (SAMP), arguing that the FAA's planned limited Environmental Assessment was inadequate. The lawmakers contended that a comprehensive cumulative impact review was necessary to properly evaluate decades of growing noise and health impacts on communities surrounding Sea-Tac Airport. They warned that proceeding with a narrower assessment risked legal challenges that could delay critical airport infrastructure projects.
  • 2020-04-21

    Burien Airport Committee agenda, April 21, 2020

    The Burien Airport Committee held a virtual meeting on April 21, 2020, discussing key aviation issues including a draft letter to the FAA regarding the Sustainable Airport Master Plan (SAMP) Environmental Impact Statement and concerns about aircraft flight patterns over Burien. The committee also reviewed updates from a March 2020 Washington, D.C. legislative visit, discussed engagement with the Sea-Tac Stakeholder Advisory Round Table (StART), and considered inviting an FAA Community Ombudsperson to a future meeting. Draft minutes from the February 26, 2020 meeting were also presented for approval, reflecting ongoing efforts by the City of Burien to address cumulative noise and air traffic impacts from Sea-Tac Airport on surrounding communities.
  • 2020-04-14

    Report to Congress: FAA Reauthorization Act of 2018 (Pub. L. 115-254) Section 188 and Sec 173

    This April 2020 FAA Report to Congress evaluates alternative noise metrics to the current Day-Night Level (DNL) 65 decibel standard used to measure community aircraft noise exposure, as required by the FAA Reauthorization Act of 2018. The report reviews the history and definitions of various noise measurement tools, explains why no single metric can address all aviation noise situations, and examines the roles of both noise modeling and actual noise sampling. It was produced in response to congressional direction to assess whether better methods exist for capturing and addressing community concerns about airplane noise.
  • 2020-03-19

    Dave Upthegrove Letter to FAA re. SAMP EIS

    In a March 2020 letter to the FAA Administrator, King County Councilmember Dave Upthegrove urges the FAA to conduct a full Environmental Impact Statement (EIS) covering both short- and long-term projects for Seattle-Tacoma International Airport's expansion, rather than splitting the review into separate studies. Upthegrove argues that a piecemeal approach risks undermining the integrity of the environmental analysis, particularly given the airport's significant noise and air pollution impacts on surrounding communities. He calls for the comprehensive EIS to include mitigation strategies addressing all projects outlined in the Port of Seattle's Sustainable Airport Master Plan (SAMP).
  • 2020-03-17

    Burien Airport Committee revised agenda and February 26, 2020 draft minutes

    The Burien Airport Committee had a meeting scheduled for March 17, 2020 that was canceled due to the COVID-19 pandemic. Key topics on the agenda included a follow-up phone call with the city's FAA lawsuit attorney Matt Adams, an update on a Washington D.C. legislative visit, and discussion of the Port of Seattle's response to community concerns about airport impacts. Draft minutes from the February 26, 2020 meeting document earlier discussions about challenging FAA flight path decisions over Burien and addressing cumulative noise and growth impacts on surrounding communities through the Seattle-Tacoma Airport's Sustainable Airport Master Plan (SAMP) Environmental Impact Statement process.
  • 2020-03-12

    Aviation Easement Analysis – Off Airport Properties: Seattle-Tacoma International Airport (Highline School District Parcels 768620-0705 and 768620-1040)

    This draft report, prepared by Jacobs and ZLB for Seattle-Tacoma International Airport in March 2020, analyzes aviation easements for off-airport properties located near the airport's runways. It focuses on two Highline School District parcels (King County Parcels 768620-0705 and 768620-1040), documenting the removal of 26 trees that previously penetrated federally defined airspace protection surfaces, including approach, departure, and transitional surfaces. The analysis confirms that all identified obstacles have been removed as part of a construction package, and provides detailed elevation and coordinate data for parcel boundary points relative to runway thresholds.
  • 2020-03-10

    FAA response to Burien City Council regarding SAMP environmental analysis

    In a March 10, 2020 letter to Burien Mayor Jimmy Matta, FAA Regional Administrator David C. Suomi explained that an Environmental Assessment (EA) — not a full Environmental Impact Statement — is the appropriate level of review for Sea-Tac Airport's Near Term Projects (NTP), which are designed to meet projected demand through 2027. The EA will evaluate all resource categories and cumulative impacts from past, present, and foreseeable projects on and near the airport. The FAA noted that preparing an EA does not rule out a future Environmental Impact Statement if significant impacts are identified.
  • Aviation Noise & Emissions Symposium 2020

    The 2020 UC Davis Aviation Noise and Emissions Symposium will focus on defining the challenges that face the noise and emissions industry over the next few years and discussing real-world solutions. Symposium Presenters will share ground-breaking efforts being undertaken by elected officials, airports, consultants, communities, and the FAA to mitigate noise and environmental impacts of