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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.

TagPart 150(269)

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  • 2022-12-03

    Resolution No. 3257 implementing Measure M2d – Mobile Homes, of the 1993 amendments to Federal Aviation Regulation (FAR) Part 150 Noise Remedy Program at Seattle-Tacoma International Airport

    Resolution No. 3257 of the Port of Seattle Commission establishes the Mobile Home Airport Compatibility Program, which provides financial assistance of up to $12,000 per mobile home to help relocate residents from mobile home parks near Seattle-Tacoma International Airport that are being converted to airport-compatible land uses. Park owners who participate must grant an avigation easement to the Port, restrict future property use to airport-compatible purposes, and ensure residents receive an approved relocation plan. The program was created to implement Measure M2d of the 1993 FAR Part 150 Noise Remedy Program amendments, approved by the FAA in May 1994.
    TagsPart 150, Port Of SeattleFolderPart 150
  • 2022-09-12

    City of Naples City Council and Naples Airport Authority Joint Workshop Meeting Minutes – September 12, 2022

    Minutes from a September 12, 2022 joint workshop between the Naples, Florida City Council and Naples Airport Authority cover discussions on the Airport Master Plan, noise reduction efforts, and community concerns about increasing jet traffic. Key topics included raising aircraft flight path ceilings to reduce noise, the possibility of reclassifying Naples as a Class C airport, and whether the Master Plan's growth projections were already outdated given a 40% surge in jet traffic. Residents and neighborhood association representatives called for equitable distribution of noise impacts and urged immediate action rather than waiting for a formal noise study to be completed.
    CategoriesMeetings TagsGeneral Aviation, Master Plan, Naples, Noise Abatement Procedures, Part 150FolderNaples
  • Part 150 Comment Card

    A blank public comment card issued by the Port of Seattle for the Part 150 Noise Study at Seattle-Tacoma International Airport. The card features a photograph of a large jet aircraft (appearing to be a Boeing 747) departing with Mount Rainier visible in the background, and includes the Port of Seattle logo.
    TagsAdvertisement, Mailers, Part 150, Port Of Seattle, Sea-Tac Airport, TBDFolderAdvertising
  • 2022-08-24

    Airport Noise & Part 150 Study FAQs

    This FAQ document from the Port of Seattle addresses common questions about noise management at Seattle-Tacoma International Airport, including how and when the third runway is used, why the Port cannot impose noise-based restrictions on runway operations, and what types of noise mitigation projects qualify for FAA funding. It outlines the history of the Port's noise reduction efforts, such as home acquisitions, insulation programs, and the Fly Quiet Incentive Program, and explains the goals of the Part 150 Noise Study process. The document also highlights the economic importance of Sea-Tac to the Puget Sound region while acknowledging the challenges of reducing noise in a densely populated area around a major international airport.
    TagsNoise Mitigation, Part 150, Port Of Seattle, Sea-Tac Airport, Third RunwayFolder2013
  • DNL65 NEM Part 150 Noise Contour Boundary 2018 Pages from 2016_10_11_SM_6b_supp

    Slide 7 from a Sea-Tac Airport presentation comparing the 65 Day Night Level (DNL) noise contours for 1998 (blue outline) and 2018 (red outline), overlaid on a regional map. The caption notes that the 2018 contour is smaller than the 1998 contour due to quieter aircraft technology.
    TagsDNL65, Noise Countour, Part 150, Sea-Tac AirportFolderHealth
  • 2022-05-01

    Assurances: Non-airport sponsors undertaking noise compatibility program projects

    This FAA document outlines the legal assurances that non-airport sponsors (such as local governments near an airport) must agree to when receiving federal grant funds for noise compatibility projects. Sponsors must comply with a wide range of federal laws, executive orders, and regulations — covering areas like civil rights, environmental protection, labor standards, and property acquisition — for the duration of the project, up to 20 years. These assurances become legally binding upon acceptance of the federal grant offer.
    TagsFAA, Grants, Noise Abatement Procedures, Noise Mitigation, Part 150FolderFAA
  • 2022-04-12

    Wesley Homes Terrace Aviation Easement Authorization to execute a settlement agreement

    In April 2022, the Port of Seattle Commission authorized a $1.29 million settlement with Wesley Homes to resolve a dispute over an avigation easement and aircraft noise at Wesley's Terrace Building near Seattle-Tacoma International Airport. Under the agreement, the Port would conduct acoustical testing, pursue FAA funding for noise mitigation, reimburse up to $250,000 of Wesley's legal fees, and commit to a full Part 150 noise study update for SEA Airport. Although the Port denied wrongdoing, it recommended settling to avoid the higher costs of going to trial.
    TagsAvigation Easement, Noise Mitigation, Part 150, Port Of Seattle Commission, Wesley HomesFolder2022
  • 2022-03-26

    Final Wesley Homes Settlement Documents

    PRR 26-1259 Installment #1. Final settlement documents for Wesley Homes, including a fully executed Settlement Agreement dated March 26, 2022, a Signed Amended and Restated Avigation Easement dated April 11, 2022, and the Amended and Restated Avigation Easement recorded with King County on April 21, 2022. The avigation easement relates to Wesley Homes property near
    TagsAvigation Easement, King County, Part 150, public records request, Sea-Tac Airport, Sound Insulation, Wesley HomesFolderPRR
  • 2020-12-17

    Response to Alex Stone’s email of December 17, 2020 re: Rep. Smith’s proposed House Bill

    This document is a detailed response regarding a proposed Washington State house bill on airport sound insulation, arguing that homeowners near Sea-Tac Airport who received faulty or inadequate noise insulation in the 1980s–2000s should qualify for a second round of repairs at no fault of their own. The author contends that poor contractor quality, a bankrupt window manufacturer, and dramatically increased flight operations have left many residents without the noise protection they were promised in exchange for signing away air rights. Key recommendations include limiting eligibility to homes originally certified under the 65 dB DNL noise contour, using certified engineers to assess repair needs, and tying funding criteria to documented increases in aircraft operations over time.
    TagsAIP, Noise Mitigation, Part 150, Port Of Seattle, Sound InsulationFolderSP #2
  • 2020-10-21

    Letter from Port Of Seattle Commission President Peter Steinbrueck to Councilmember Harris Regarding Failed Noise Insulation Packages and Motion 2020-04

    In this October 2020 letter, Port of Seattle Commission President Peter Steinbrueck responds to Councilmember Harris's inquiry about funding repairs for previously installed, failed noise mitigation packages near Sea-Tac Airport. Steinbrueck clarifies that the Commission's Motion 2020-04 was focused on accelerating existing Part 150 sound insulation projects, not on addressing failed installations, and that no formal program for a 'second chance' noise remedy has been approved. The Port cites COVID-19 financial impacts, lack of federal reimbursement, and the need for more information from the Councilmember as key obstacles to pursuing any new program.
    TagsHB2315, Noise Mitigation, Part 150, Port Of Seattle, Port Of Seattle Commission, Port PackagesFolderPort Packages

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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.
read more...

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.
continue...

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