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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.

TagACC(1531)

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  • 1996-04-01

    EXH AR033734: Soil Screening Guidance: User’s Guide

    EPA Superfund publication 9355.4-23 (April 1996), ‘Soil Screening Guidance: User’s Guide,’ issued by the United States Environmental Protection Agency Office of Solid Waste and Emergency Response, Washington DC 20460. Exhibit AR033734. Includes Table C-4 presenting metal Kd values (L/kg) as a function of pH for metals including arsenic (Ag), barium (Ba), beryllium (Be), cadmium (Cd),
    TagsACC, Environmental Protection Agency, EPA, Pollution Control Hearings Board, soil, SuperfundFolderBox 14
  • 1996-02-01

    Exhibit 2124: Model Toxics Control Act Cleanup Levels and Risk Calculations (CLARC II) Update, February 1996

    Washington State Department of Ecology publication #94-145 (updated 1/96) presenting the February 1996 annual update to the MTCA (Model Toxics Control Act) Cleanup Standards under CLARC II. Covers Method B and Method C cleanup levels for soil and groundwater, reference doses (RfD), cancer potency factors, hazard quotients, WAC 173-340-740 and WAC 173-340-745 calculations, inhalation correction
    TagsACC, Ecology, Model Toxics Control Act, MTCA, Pollution Control Hearings Board, soil, WACFolderBox 14
  • 1996-02-01

    EXH AR038744: Final Environmental Impact Statement for Proposed Master Plan Update Development Actions at Seattle-Tacoma International Airport, Volume 1 of 7

    Final Environmental Impact Statement (EIS) prepared jointly by the Federal Aviation Administration (FAA) Northwest Mountain Region and the Port of Seattle for the Seattle-Tacoma International Airport (Sea-Tac) Master Plan Update, dated February 1996, AR038744. Covers proposed development actions 1996-2020 including a new third parallel runway (Runway 16X/34X) up to 8,500 feet long separated 2,500 feet
    TagsACC, Environmental Impact Statement, FAA, NEPA, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport Master PlanFolderBox 16
  • 1995-12-14

    Exhibit 201: Ecology Delegation of Authority — Tom Luster, Section 401 Certifications and CZM Consistency Determinations

    These three pages from the Washington State Department of Ecology document the delegation of signature authority to staff member Tom Luster, allowing him to issue routine Section 401 water quality certifications, Coastal Zone Management consistency determinations, and related administrative orders. Originally signed by Director Mary Riveland in December 1995, the authority was reaffirmed by Director Tom Fitzsimmons in February 1997. The delegation includes a succession of authority chain to ensure continuity if Luster is absent or leaves his position.
    TagsACC, Ecology, Environmental Impact Statement, PCHB, Pollution Control Hearings Board, RCW, WACFolderBox 08
  • 1995-12-01

    EXH AR024562: Analysis of Regulatory Issues — NPDES Permit Program Municipal & Industrial Stormwater Discharges

    A 1995 Washington Department of Ecology staff discussion paper analyzes regulatory challenges in applying the NPDES permit program to municipal and industrial stormwater discharges, focusing on how to ensure such discharges comply with Clean Water Act water quality standards. The paper explores questions around defining 'Waters of the State,' determining compliance monitoring points, and identifying which permitted dischargers require water-quality-based effluent limitations. Note that this paper does not represent official Ecology policy and was intended to stimulate internal discussion and policy decisions.
    TagsACC, Clean Water Act, Ecology, NPDES, PCHB, Pollution Control Hearings Board, StormwaterFolderBox 10
  • 1995-11-22

    EXH AR027698: Draft Amendments to Initial Watershed Assessment, Water Resources Inventory Area 9, Green-Duwamish Watershed

    Draft amendments prepared by Tom Culhane and Jerry Liszak of Washington Department of Ecology Northwest Regional Office, Water Resources Program, replacing text of OFTR 95-01 for the Initial Watershed Assessment of Water Resources Inventory Area 9 (WRIA 9), Green-Duwamish Watershed. Document covers hydrogeology, ground water-surface water interaction, water demand, streamflow status, water rights and claims
    TagsACC, Duwamish River, Ecology, Pollution Control Hearings Board, State of Washington, Water QualityFolderBox 10
  • 1995-11-01

    EXH AR023140: Guidance Remediation Petroleum Contaminated Soils

    This 1995 Washington State Department of Ecology document provides guidance for cleaning up soils contaminated by petroleum products. It outlines remediation standards and procedures under the state's Toxics Cleanup Program, applicable across all regions of Washington State. Note: This document addresses soil contamination cleanup and does not contain content specifically related to Sea-Tac Airport noise policy.
    TagsACC, Ecology, Model Toxics Control Act, MTCA, PCHB, Pollution Control Hearings Board, soilFolderBox 10
  • 1995-07-21

    Airport Impact Assistance Strategy: Work Program Draft, City of Burien

    A 1995 City of Burien memorandum and accompanying draft strategy paper outline concerns about the negative impacts of constructing a third runway at Seattle-Tacoma International Airport on surrounding communities, including increased noise, traffic, and neighborhood blight. The document warns that heavy truck traffic, expanded air traffic noise 'shadow,' and construction disruption could drive down property values, destabilize local businesses, and accelerate community deterioration. It calls for proactive planning and mitigation efforts, while criticizing the Environmental Impact Statement (EIS) for inadequately addressing these impacts.
    TagsACC, City of Burien, Environmental Impact Statement, NEPA, Third RunwayFolderThird Runway
  • 1995-07-01

    EXH AR038694: STIA Capacity Enhancement Plan Update

    Seattle-Tacoma International Airport (STIA) Capacity Enhancement Plan Update, July 1995, AR 038694. Prepared jointly by the U.S. Department of Transportation, Federal Aviation Administration (FAA), Port Of Seattle, and airlines and general aviation community serving Sea-Tac Airport. Document covers airport capacity planning and enhancement initiatives.
    TagsACC, Capacity, FAA, General Aviation, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac AirportFolderBox 16
  • 1995-04-01

    ACC Comments on the Proper Scope of the Environmental Impact Statement for a Proposed Development of Seattle-Tacoma International Airport

    The Airport Communities Coalition, representing the cities of Burien, Des Moines, Normandy Park, and Tukwila, Washington, submitted formal scoping comments to the FAA and Port of Seattle regarding the proper scope of an Environmental Impact Statement for a proposed expansion of Seattle-Tacoma International Airport. The comments address key issues including the purpose and need for the project, the role of Puget Sound Regional Council planning, and the requirement for the FAA to independently fulfill its obligations under the National Environmental Policy Act. The document also calls for the EIS to account for connected and cumulative impacts, including planned land-side facility improvements and the Part 150 Noise Mitigation Program.
    TagsACC, Environmental Impact Statement, FAA, NEPA, Third RunwayFolderACC

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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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