TagStART(267)

• SAF are “drop-in” liquid aviation fuels – same infrastructure, engines & aircraft • SAF can reduce lifecycle GHG and air quality emissions substantially – critical to aviation de-carbonization • Viable technologies exist – seven alternative fuel pathways currently approved for use, and two approved for co-processing with petroleum, more under evaluation for approval • Scalable feedstocks – wastes & residues, biomass, sugars, oils and energy crops can all supply SAF • Widely accepted by airlines, business, and general aviation • Broadly supported among federal agencies as meeting critical goals - climate, energy security, rural economic development • Critical to international efforts to address aviation emissions Federal Aviation Administration Sustainable Aviation Fuels – Life Cycle Benefit FAA have extensive research that have supported development of rigorous life cycle accounting methods over the last decade: - Argonne National Labs GREET Model - ICAO Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) - SAF Blenders Tax Credit (I.R.A. Sections 13203 and 13704) Diagram from ATAG Beginner’s Guide to SAF, which is available at: https://aviationbenefits.org/downloads/beginners-guide-to-sustainable-aviation-fuel/ The extent to which any particular SAF provides a climate benefit depends on SAF’s life cycle emissions profile, taking into account the production, transportation, and combustion of the SAF, as well as indirect effects. Federal Aviation Administration Testing accelerate SAF development •Test fuels • Improve testing methods •Conduct evaluation •Streamline approval Analysis environmental and economic sustainability •Lifecycle emissions •Cost reduction •Supply potential •Supply chain opportunities Coordination support SAF integration •Public-private partnership – CAAFI •U.S. interagency cooperation •International…

• Sound level decreases by 6 dB per doubling of distance • Additional losses due to atmospheric absorption Ground Effect: • Sound levels are lower when reflected off of soft ground vs. hard ground Sound Propagation Refraction due to Temperature: • Gradients in temperature cause the bending of sound paths • Sound bends upward during a temperature lapse (cool air over warm) • Sound bends downward during a temperature inversion (warm air over cool) Sound Propagation Refraction due to Wind: • Gradients in wind speed cause the bending of sound paths • Sound bends upward causing sound shadows in the upwind direction • Sound bends downward increasing sound levels in the downwind direction • Differences between upwind and downwind directions can be 20 dB Scope of Services ✓Ground Noise Data Research • Meet with StART • Identify ground noise sources and locations • Identify atmospheric conditions that may increase ground noise • Noise Monitoring (in progress – data acquisition complete) • Obtain and analyze data from permanent monitors • Collect and analyze additional temporary noise monitoring data • Identify Mitigation Options • Present findings on ground noise sources and levels and solicit input on mitigation measures • May include changes in aircraft operating procedures or utilization of new or existing structures to reduce community noise exposure • Report Project Results Noise Measurement Locations • Site 1: Northeast • Taxiing/queueing • Start-of-takeoff roll • Engine run-ups • Site 2: East • Terminal din • Auxiliary Power Units (APU) and taxi •…

StART enhances cooperation between the Port of Seattle and the neighboring communities of Seattle-Tacoma International Airport StART AGENDA JUNE 23, 2021; 5:00 PM – 7:00 PM VIA ZOOM V IDEOCONFERENCE Meeting Objectives: Overview of Seattle/King County Public Health’s study on the health impacts of aviation. Review of the SAMP public process. Update on Federal Policy Working Group and Aviation Noise Working Group activities. (Note: The facilitator will open the meeting at 4:45 pm for those who may want to test their technology and connection.) Time Item Lead Action 5:00 pm Welcome o Meeting Management o Introductions o By-law Change o Opening Comments o New Members Brian Scott, Facilitator, BDS All Brian Scott, Facilitator, BDS Lance Lyttle, StART Chair/SEA Managing Director 5:10 pm Seattle-King County Public Health: Health Impacts of Aviation Study Dr. Kris Johnson, Senior Social Research Scientist, Seattle/King County Public Health and Elena Austin, Assistant Professor, UW School of Public Health Presentation, QA 5:50 pm SAMP Public Process Clare Gallagher, POS Capital Project Delivery Director Presentation, QA 6:00 pm Federal Policy Working Group Update Marco Milanese, POS Community Engagement Manager Presentation, QA 6:10 pm Aviation Noise Working Group Update Tom Fagerstrom, POS Airport Noise Programs Coordinator Presentation, QA 6:20 pm Public Comment Public 6:35 pm Wrap Up + Next Steps Brian Scott, Facilitator, BDS 6:40 pm Adjourn NEXT MEET ING : AUGUST 25, 2021- TENTAT IVELY 5:00 PM - 7:00 PM V IA ZOOM V IDEOCONFERENCE

StART enhances cooperation between the Port of Seattle and the neighboring communities of Sea-Tac Airport August 28, 2019 Recap The Sea-Tac Stakeholder Advisory Round Table (StART) meeting took place on August 28, 2019 with a focus on recapping the Aviation Noise Working Group’s latest efforts, reviewing and discussing the Federal Policy Working Group’s Work Plan, and conducting a panel discussion on Part 150 Studies. This voluntary, advisory roundtable, convened by Seattle-Tacoma International Airport Managing Director Lance Lyttle, is a venue for the Port of Seattle to engage with the communities of SeaTac, Burien, Des Moines, Normandy Park, Tukwila and Federal Way. Representatives from Delta Air Lines, Alaska Airlines, and Lynden Transport are also members. The Federal Aviation Administration (FAA) participates as a non-member. The cities of Burien, Des Moines, and Federal Way recently temporarily suspended their involvement in StART. The Airport Managing Director, Lance Lyttle, provided comments on the decision of three cities to temporarily suspend their involvement. Lyttle stated that the intent of StART was and still is to provide a forum for communities to discuss and address areas of concern. He emphasized that he believes that StART has provided constructive guidance and identified numerous initial actions that benefit the communities. He apologized that the Port did not provide advance community notice on a Commission vote on SAMP- related items and reviewed which projects had preliminary design work funding approved at the Commission meeting. Going forward, he stated that the Port pledges to provide clearer and more consistent notification…

– Alternatives analysis for major plan elements • Advanced planning - in progress – More detailed planning in focus areas of long-range plan and existing facilities – Alternatives analysis within individual projects (e.g. options for configuring curbs and functional areas for Second Terminal) • Preliminary design - current capital funds request – Program development for individual projects – Adequate detail required to transition projects to design – Results in a Project Definition Document (PDD) Near-Term Projects Near-Term Projects Design/construction period estimates for major projects NOTE: Preliminary design precedes design phase shown above and is not depicted. Commission authorization is required to proceed into design 1) Westside Maintenance Campus 2) Aircraft Rescue and Fire- Fighting (ARFF) Relocation 3) Roadway Improvements 4) Taxiway A/B Extension 5) Main Terminal North GT Lot Projects Requiring Preliminary Design Design/construction period estimates Glideslope Antenna Relocation • Taxiway A/B project requires relocation of Runway 34R glideslope antenna – Opportunity to adjust slope angle and increase aircraft elevation on approach – Sea-Tac Stakeholder Advisory Round Table (StART) recommendation • Relocate to potentially permanent location (i.e. consistent with Taxiway A/B project) • Attempt to obtain a 3.1˚ glideslope angle • Look for ways to expedite the project – Begin design (design at risk prior to conclusion of environmental review) – Initiate procedure development as soon as possible – Design/construction by FAA with reimbursement by the Port Next Steps • Following Commission authorization… – Utilize $10M capital funds to conduct preliminary design • Projects currently identified as requiring preliminary design…