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STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagSea-Tac Airport(2023)

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  • 2024-10-08

    2025 Aviation Preliminary Budget Key Takeaways Slide

    A budget summary slide for the 2025 Aviation Preliminary Budget, covering revenues (9.4% increase, passenger volume exceeding 2019 levels), expenses (15.2% increase in operating expenses, 64 new FTEs), financial forecasts (debt service coverage at 1.82x, CPE of $19.57), and budget uncertainties including PFAS impacts, environmental remediation liability costs, and cyber incident impacts.
    TagsBudget, PFAS, Sea-Tac Airport
  • 2024-10-08

    Sea-Tac Airport Aviation and Marina Budget Cash Flow Forecast 2025–2029

    A financial forecast table for Seattle-Tacoma International Airport covering budget year 2025 and forecast years 2026–2029, showing aeronautical and non-aeronautical revenues, operating expenses, debt service, and net cash flow figures in thousands of dollars. Key notes indicate the aeronautical revenue methodology is based on the Signatory Lease Operating Agreement (SLOA) IV expiring 12/31/2024, and average annual net debt service is projected to grow by 20% due to capital expenditure growth.
    TagsBudget, Port Of Seattle, Sea-Tac Airport
  • 2024-10-08

    2025 Aviation Preliminary Budget Key Takeaways Slide

    A budget presentation slide summarizing the 2025 Aviation Preliminary Budget, covering revenues (9.4% increase, passenger volume exceeding 2019 levels), expenses (15.2% increase in operating expenses, 64 new FTEs), financial forecast (debt service coverage at 1.82x, 18 months O&M cash on hand, CPE of $19.57), and budget uncertainties including PFAS impacts, environmental remediation liability costs, and cyber incident impacts. The slide number 053/51 suggests this is from a formal commission or port authority budget presentation.
    TagsBudget, PFAS, Port Of Seattle, Sea-Tac Airport
  • 2024-10-08

    2025 Aviation Division operating and CIP budgets briefing

    On October 8, 2024, the Port of Seattle Commission held a special study session at Seattle-Tacoma International Airport to review the Aviation Division's preliminary 2025 operating and capital budgets, presented by Aviation Managing Director Lance Lyttle and Finance Director Hiedi Popochock. The briefing was part of a series of budget discussions that began in June 2024, with formal Commission approval of the 2025 budget planned for November. The session also included a review of the Maritime Division's operating and capital budgets.
    TagsBudget, Port Of Seattle, Port Of Seattle Commission, Sea-Tac Airport
  • Delta Air Lines Boeing 757 (N559NW) on Runway

    An aerial view of a Delta Air Lines Boeing 757, bearing tail number N559NW and a U.S. flag decal, taxiing or beginning its takeoff roll on a runway. The aircraft displays Delta's current livery with white fuselage, blue engines and winglets, and the red-and-blue widget logo on the tail; smoke is visible from the engines.
    Tagsaircraft, Delta, Sea-Tac Airport
  • 2024-10-03

    Commercial Jet Aircraft Viewed from Below Against Blue Sky

    A white twin-engine narrow-body commercial jet aircraft, viewed from below against a clear blue sky, with landing gear retracted and what appears to be a purple or magenta tail livery partially visible. The aircraft type appears consistent with an Airbus A320-family or Boeing 737-family; no tail number or airline logo is legibly readable from this angle.
    Tagsaircraft, Aviation Emissions, Noise, Sea-Tac Airport
  • 2024-10-01

    SAMP Exhibit 3-3 Area of Potential Effects (APE) Water

    Exhibit 3-3 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan (SAMP) Near-Term Projects, prepared by Landrum & Brown, dated October 2024 (Draft). The map depicts the Biological Resources ESA Study Area boundary (shown in blue dashed line) surrounding the airport property, extending to Puget Sound to the west and encompassing nearby waterways including Miller Creek and Walker Creek.
    Tagsenvironmental assessment, Landrum & Brown, Map, NEPA, SAMP, Sea-Tac Airport
  • 2024-10-01

    Seattle-Tacoma International Airport Environmental Assessment for the SAMP Near-Term Projects: Chapter 4 — Environmental Consequences

    This October 2024 draft Environmental Assessment evaluates the potential environmental impacts of near-term construction and operational projects at Seattle-Tacoma International Airport under three alternatives: No Action, a Proposed Action, and a Hybrid Terminal Option. The analysis covers impacts through 2032 and an out-year of 2037, finding that increases in air quality emissions and effects on biological resources are not considered significant, with mitigation measures proposed for stormwater management and migratory bird nesting. Farmlands and Wild and Scenic Rivers were determined to have no presence in the study area and required no further analysis.
    Tagsenvironmental assessment, Landrum & Brown, NEPA, SAMP, SAMP Draft EA, Sea-Tac Airport, Sustainable Airport Master Plan
  • 2024-10-01

    Chapter 3: Affected Environment — Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects

    This draft Environmental Assessment from October 2024 examines the existing conditions around Seattle-Tacoma International Airport (SEA) as part of the Sustainable Airport Master Plan Near-Term Projects. Using 2022 as the baseline year, it describes SEA's location on approximately 2,800 acres in the City of SeaTac, situated 12 miles south of downtown Seattle and surrounded primarily by residential neighborhoods. The study covers a General Study Area of 3,692 acres to identify where proposed airport development actions could have direct or indirect environmental impacts on nearby communities.
    Tagsenvironmental assessment, Landrum & Brown, NEPA, SAMP, Sea-Tac Airport, Sustainable Airport Master Plan
  • 2024-10-01

    Airport Improvement Magazine, October 2024: Runway & Ramp Special Edition

    The October 2024 special edition of Airport Improvement magazine covers runway and ramp safety projects at airports across the United States, including Seattle-Tacoma International Airport's transition to PFAS-free firefighting foam. The Seattle-Tacoma article focuses on cleaning PFAS contamination from firefighting vehicles, reflecting broader efforts to eliminate hazardous fluorine-based chemicals from airport operations. Additional stories cover FAA technology deployments, taxiway reconstruction, and airfield safety improvements at airports nationwide.
    TagsAirport Improvement Magazine, Airports, FAA, PFAS, Sea-Tac Airport

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Upcoming Events

  • StART SEA Stakeholder Advisory Round Table
    Add to CalendarMWednesday Aug 26, 5:00pm - 7:00pm
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    START meetingagenda 2026826 final 0 pdf

    Meeting Objectives Introduce the primary feedback themes identified by StART members regarding StART’s Operating Procedures and determine areas that may warrant future discussion. 5:00 PM – Welcome Meeting Management Welcome Lead: Andrés Mantilla, Facilitator, Uncommon Bridges; Wendy Reiter, Airport Managing Director, POS 5:15 PM – Dinner: All participants eat. 5:30 PM – StART Operating Procedures

    [...]
  • Commercial Aviation Work Group
    Add to CalendarMThursday Sep 3, 10:00am - 1:30pm
    Virtual Meeting (Zoom)
    Cawg agenda sep 3 26 virtual pdf

    Meeting Agenda 10:00 a.m. – 10:15 a.m. | Welcome – Evan Nordby, Chair a. Introductions and Agenda Reviewb. Status of appointments and non-voting member invitationsc. Other updates as necessary 10:15 a.m. – 11:00 a.m. | Is it practical and legal to operate the western Washington [Puget Sound] airports as a single airport system? – Consultant

    [...]

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Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
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Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
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