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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.

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  • 2018-03-27

    Engrossed Substitute Senate Bill 6032: Washington State 2018 Supplemental Operating Budget (Chapter 299, Laws of 2018)

    Engrossed Substitute Senate Bill 6032, passed by the Washington State Legislature on March 8, 2018, and signed by Governor Jay Inslee on March 27, 2018, is a supplemental operating budget bill making appropriations and amendments to various state funds for the 2017-2019 fiscal biennium. The bill covers a wide range of general government expenditures, including funding for the House of Representatives, tax structure reform discussions, and rural health care planning. Governor Inslee approved the bill with a partial veto, striking down more than 20 specific sections.
    CategoriesLegislation TagsBudget, Jay Inslee, RCW, Stantec, State of Washington, Washington State LegislatureFolderStantec
  • 2015-12-10

    Resolution No. 1317: Approving the Parks, Recreation and Senior Services Master Plan for the City of Des Moines, 2016–2021

    The City Council of Des Moines, Washington adopted Resolution No. 1317 on December 10, 2015, officially approving the 2016–2021 Parks, Recreation and Senior Services Master Plan. The plan, developed with input from a citizen advisory committee and a professional architectural consultant, guides future park acquisitions, renovations, and capital improvements, and must be filed with the state Recreation and Conservation Office within 30 days. It also serves as the basis for updating the city's Comprehensive Plan and calculating Park Impact Fee rates.
    Tagscity council, City Of Des Moines, Master Plan, Parks, RCWFolderDes Moines Creek Business Park
  • 2013-10-24

    Ordinance No. 1583: An ordinance of the City of Des Moines, Washington relating to the environment

    Ordinance No. 1583 is an environmental regulations ordinance from the City of Des Moines, Washington, that replaces and reorganizes the city's Title 16 Environmental Code. It implements state laws covering environmental policy, critical areas, floodplain management, and shoreline protection, while providing definitions and general provisions applicable across all related chapters.
    TagsCity Of Des Moines, Environment, ordinances, RCW, SEPAFolderDes Moines
  • 2002-10-23

    EXH AR039919: Resolution No. 3211 — Port Of Seattle SEPA Appeal Procedures

    Resolution No. 3211 of the Port Commission of the Port of Seattle, King County, Washington, repealing sections 15.4 and 21 and subsections 21.1, 21.2, 21.3, 21.4, and 21.5 of Port Resolution 3028, and adopting new SEPA administrative appeal procedures under ch. 43.21C RCW and chapter 197-11 WAC. Establishes appealable SEPA decisions (EIS adequacy and issuance
    TagsACC, Environmental Impact Statement, Pollution Control Hearings Board, Port Of Seattle, RCW, SEPA, WACFolderBox 17
  • 2002-10-22

    EXH AR027679: King County Water Rights Records — Priority Date Listing

    Administrative Record AR027679–AR027681 comprising a multi-page tabular listing of water rights records in King County (WRIA Code 9), spanning priority dates from 1930 to 1958. Records identify control numbers, business/person names, type/status (CE, PE/CAN, AP/REJ, CE/RLQ), priority dates, acreage, quantities (Qi), purposes (IR, DS, MU, ST, FR, PO, DM), and water sources including Green River,
    TagsACC, King County, Map, Pollution Control Hearings Board, RCW, Water QualityFolderBox 10
  • 2002-10-22

    EXH AR1018: Port Of Seattle Port Submittals Binder — King County Superior Court Memorandum Ruling on RCW 47.80.23(2), City of Des Moines v. Puget Sound Regional Council

    Port of Seattle Port Submittals Binder (AR 035023), containing a King County Superior Court Memorandum Ruling on Application of RCW 47.80.23(2) in case No. 96-2-20357-2 KNT, City of Des Moines et al. (plaintiffs) v. The Puget Sound Regional Council et al. (defendants). The ruling addresses obligations of a regional body (PSRC) when approving a major
    TagsACC, City Of Des Moines, Pollution Control Hearings Board, Port Of Seattle, Puget Sound Regional Council, RCW, Sea-Tac AirportFolderBox 14
  • 2002-10-21

    EXH AR021263: WAC 173-201A WA Water Quality Standards — Toxic, Radioactive, Lake Nutrient

    This document outlines Washington State water quality standards for surface waters, including criteria for total phosphorus levels in lakes across different ecoregions (Cascades and Columbia Basin) and limits for toxic substances such as heavy metals, pesticides, and radioactive materials. It establishes trophic state classifications and action values that trigger lake-specific studies when exceeded, and sets numerical criteria for aquatic life protection in both freshwater and marine environments.
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, RCW, WAC, Water QualityFolderBox 09
  • 2002-01-08

    EXH AR005606: ACC and CASE Application for Direct Review of PCHB Order Granting Stay of Section 401 Certification

    ACC (Airport Communities Coalition) and CASE (Citizens Against Sea-Tac Expansion) file an application for direct review by Washington Court of Appeals Division II of the Pollution Control Hearings Board (PCHB) ‘Order Granting Motion to Stay the Effectiveness of Section 401 Certification’ (PCHB No. 01-160), issued December 17, 2001, and appealed by Port Of Seattle to
    TagsACC, CASE, Pollution Control Hearings Board, Port Of Seattle, RCWFolderBox 03
  • 2001-12-05

    EXH AR030790: Ecology Letter to San Juan County — Ayer Property Wetland Conversion Concerns, Orcas Island

    Letter dated December 5, 2001 from Sarah Suggs, Wetlands Specialist, Washington State Department of Ecology (Northwest Regional Office) to Grant Beck, Director, San Juan County Permit Center, regarding the Ayer property wetland restoration proposal on Orcas Island. Ecology characterizes the proposal as a wetland conversion (not restoration) under Chapter 90.48 RCW and Chapter 173-201A WAC,
    TagsACC, Ecology, Environment, Pollution Control Hearings Board, RCW, SEPA, Water QualityFolderBox 12
  • 2001-05-01

    Model Toxics Control Act Cleanup Regulation: Process for Cleanup of Hazardous Waste Sites

    This Washington State Department of Ecology fact sheet explains how the Model Toxics Control Act (Initiative 97, 1989) governs the cleanup of hazardous waste sites in Washington, outlining who is liable, how sites are identified, and the options available for conducting cleanups. Potentially liable parties — including past and present owners, operators, and those who transported or disposed of hazardous substances — may clean up sites independently or work cooperatively with Ecology through formal agreements such as consent decrees. Note: this document concerns hazardous waste site cleanup regulation and does not contain information related to Sea-Tac Airport noise policy.
    TagsEcology, Model Toxics Control Act, MTCA, RCW, WACFolderEcology

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Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    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

    [...]

[See all...]


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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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