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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.
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Category : Correspondence(309)

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  • 2015-09-15

    Letter of understanding regarding the environmental review of the Sustainable Airport Master Plan

    In this September 2015 letter, the Port of Seattle and the City of SeaTac reached a mutual agreement regarding the environmental review of Sea-Tac Airport's Sustainable Airport Master Plan (SAMP). The Port committed to conducting a full environmental analysis of all anticipated airport growth — including international passenger traffic — as part of the SAMP review process, addressing the City's concerns about transportation and other impacts. In exchange, the City agreed not to file an appeal on the Final Declaration of Non-Significance issued for the International Arrivals Facility project.
    CategoriesCorrespondence TagsCity Of SeaTac, IAF, International Arrivals Facility, SAMP, Sustainable Airport Master PlanFolderSeaTac
  • 2012-10-08

    Thank-You Letters to Representatives Zack Hudgins and Tina Orwall from Highline Forum and SKCEDI

    In October 2012, the Highline Forum and Southwest King County Economic Development Initiative (SKCEDI) sent thank-you letters to Washington State Representatives Zack Hudgins and Tina Orwall for attending a joint meeting on September 26, 2012, at the Des Moines Senior Center. The letters acknowledged the representatives' candid discussion about legislative expectations in Olympia and expressed plans to continue conversations about the 2013 Economic Development Legislative Positions for Southwest King County. The correspondence was signed by Normandy Park Councilmember Marion Yoshino and Burien Deputy Mayor Rose Clark on behalf of both organizations.
    CategoriesCorrespondence TagsDes Moines, Highline Forum, Rose Clark, SKCEDI, Third Runway, Tina OrwallFolderHighline Forum 2012
  • 2004-05-28

    Demand for compliance by the Port and Ecology with the decision of the Washington Supreme Court in Port Of Seattle, et al. v. Pollution Control Hearings Board, et al.

    A May 2004 legal letter from Helsell Fetterman attorneys demands that the Port of Seattle and Washington State Ecology Department comply with a Washington Supreme Court ruling before proceeding with third runway construction at Sea-Tac Airport. The court imposed environmental conditions requiring that fill materials used in construction come only from uncontaminated sites, meet strict groundwater quality standards, and pass SPLP leachate testing against both surface and groundwater criteria. The letter argues that the Port's existing work plans and bid documents violate these court-mandated conditions, citing discrepancies such as the Port's allowable arsenic limit of 14.75 ug/L being several hundred times higher than the court-required 0.05 ug/L standard.
    CategoriesCorrespondence TagsACC, Airport Communities Coalition, Clean Water Act, RCAA, Supreme Court Of Washington, Third RunwayFolderRCAA
  • 2002-09-06

    Notice of tree removal

    In September 2002, the Port of Seattle notified nearby residents that it would be removing trees located west and south of Tyee Golf Course, near South 196th Street, at the direction of the Federal Aviation Administration. The trees were identified as hazards to aircraft taking off and landing at Seattle-Tacoma International Airport. Work was scheduled to begin September 16, 2002, and was expected to last up to four weeks.
    CategoriesCorrespondence TagsFAA, Port Of Seattle, RCAA, Sea-Tac Airport, TreesFolderRCAA
  • 2002-06-03

    Des Moines Beach Park Legal Analysis and Department of Ecology Letter on Third Runway Fill Material

    Legal memorandum analyzing King County’s role in proposed Des Moines Beach Park conveyor belt operation, including property rights and park use restrictions. Includes Department of Ecology letter clarifying fill material certification requirements for Port of Seattle’s third runway construction.
    CategoriesCorrespondence, Litigation TagsAirport Expansion, Airport Law, Port Of SeattleFolderConveyor
  • 2002-02-14

    EXH AR027883: Smith & Lowney PLLC Fax to Helsell Fetterman LLP — Lab Reports for Case 2 Site Visit Day 2 Water Samples

    Fax cover sheet and analytical lab reports sent by Rick Poulin of Smith & Lowney, P.L.L.C. (Seattle, WA) to Peter Eglick and Kevin Stock at Helsell Fetterman LLP on February 14, 2002, transmitting water sample lab results for Case 2, Site Visit Day 2. Enclosed letter from Analytical Resources, Incorporated (ARI), dated February 11, 2002,
    CategoriesCorrespondence TagsACC, CASE, Ethylene Gycol, Pollution Control Hearings Board, Water QualityFolderBox 10
  • 2001-10-19

    EXH AR017661: RE: Low Flow Meeting — Email Chain, October 19, 2001

    Email chain dated October 19, 2001 among Kathryn Snider (Floyd Snider McCarthy, Inc.), Kelly Whiting (Metro King County), Ann Kenny, Keith Smith (Port Of Seattle Water Resources Manager), and David Masters regarding a proposed Low Flow Meeting scheduled for October 30, 2001 at Kate Snider’s office (8:30–11:30 AM). Kelly Whiting requests a meeting agenda or
    CategoriesCorrespondence TagsACC, King County, Pollution Control Hearings Board, Port Of Seattle, Water QualityFolderBox 08
  • 2001-08-28

    EXH AR017854: Phone Message and Handwritten Notes — Letter from Board, Hearing March 18-29 2002

    Exhibit AR017854 from Hellwig exhibit collection (Exhibit No. 103, dated 1-8-02, M. Green). Phone message slip dated 8/28 at 2:50 from Joan Mpichoro (or similar) to Ray, noting a letter from the Board setting a hearing for March 18-29, 2002, with a please-call-back request. Accompanying handwritten notes dated 8-27-01 cover questions and ideas including: 4POS
    CategoriesCorrespondence TagsACC, Handwritten Notes, PCHB, Pollution Control Hearings BoardFolderBox 08
  • 2001-05-01

    Exhibit 2211: Email from Scott Bender to Katie Walter Regarding Hydrologic Impacts to Wetland 39

    Email dated 5/1/01 from Scott Bender to Katie Walter transmitting an attached memo describing Bender’s opinions about hydrologic impacts to Wetland 39. AR 034818, ECY00021952, Exhibit-2211. Document relates to Ecology environmental review processes involving wetland hydrology assessment.
    CategoriesCorrespondence TagsACC, Ecology, Environment, Pollution Control Hearings BoardFolderBox 14
  • 2001-03-01

    Truth in Aviation: The newsletter of the Regional Commission on Airport Affairs, Vol. 6, No. 4, Spring 2001

    A 2001 community newsletter documenting widespread opposition to Sea-Tac Airport's proposed third runway construction, which required destroying 18 acres of wetlands. Residents, local elected officials, and independent experts raised serious concerns about earthquake safety, environmental damage to local streams and salmon habitat, and the structural integrity of four unprecedented earthen retaining walls planned for the project. The Port of Seattle's applications were repeatedly challenged and withdrawn due to fatal flaws in environmental planning and seismic risk analysis.
    CategoriesCorrespondence, History TagsFlyer, RCAA, Regional Commission On Airport Affairs, Truth in AviationFolderRCAA

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  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
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    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

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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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    "Final Supplemental Environmental Impact Statement for the Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport — Volume 3, Appendix G: Public and Agency Comments on the February 1997 Draft Supplemental EIS" — , 1997

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