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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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  • 2008-01-01

    Compilation of Airport Law Resources

    A comprehensive legal research digest that compiles and indexes airport law resources for attorneys and administrators. It provides a bibliography of federal resources, statutory materials, regulations, case law, and secondary sources related to airport legal issues including topics like eminent domain, environmental concerns, leasing, contracting, security, and liability.
    CategoriesResources TagsAirport Cooperative Research Program, Airport Improvement Program, Airport Law, Airport Law Digest, Federal Aviation Administration, National Academies of Sciences, NEPA, Transportation Research Board
  • 2005-06-24

    Guidance on the consideration of past actions in cumulative effects analysis

    This 2005 memo from the White House Council on Environmental Quality instructs federal agencies on how to handle past actions when analyzing cumulative environmental impacts under the National Environmental Policy Act (NEPA). Agencies are not required to exhaustively catalog every past action, but must describe their current combined effects when those effects are relevant to a proposed action's foreseeable environmental impacts. The guidance emphasizes using the scoping process to focus analysis on truly significant cumulative effects rather than accumulating unnecessary background data.
    TagsCEQ, Council on Environmental Quality, Environmental Review, NEPA
  • 2002-11-04

    KCIA draft master plan and SEPA/EIS and NEPA/EA executive office briefing

    This 2002 executive briefing presents the draft Master Plan and environmental review documents (SEPA/EIS and NEPA/EA) for King County International Airport (Boeing Field), located five miles south of downtown Seattle. The airport, which covers 594 acres and hosts 150 tenant businesses and 479 based aircraft, recorded approximately 290,000 flight operations in 2001. The FAA accepted the Master Plan in Fall 2001 and approved the Airport Layout Plan in March 2002, setting the stage for future development and noise impact assessments.
    TagsEnvironmental Impact Statement, KCIA, Master Plan, NEPA, RCAA, SEPA
  • 2002-10-23

    EXH AR037425: Memorandum of Agreement Between the Department of the Army and the Environmental Protection Agency Concerning the Determination of Mitigation Under the Clean Water Act Section 404(b)(1) Guidelines

    Memorandum of Agreement (MOA) between the U.S. Department of the Army and the U.S. Environmental Protection Agency (EPA) articulating policy and procedures for determining type and level of mitigation required under Clean Water Act (CWA) Section 404(b)(1) Guidelines. AR037425. Covers three mitigation types: avoidance, minimization, and compensatory mitigation; establishes no net loss of wetlands goal;
    TagsACC, Army Corp of Engineers, CEQ, Clean Water Act, Environmental Protection Agency, NEPA, Pollution Control Hearings Board
  • 2002-10-22

    EXH AR035004: Attachment G — Wetland Acreage Impacts and Mitigation by Wetland Function

    Attachment G table detailing wetland acreage impacts and mitigation credits by wetland function for in-basin and Auburn sites, related to the Sea-Tac Airport or associated project. Functions covered include Resident/Anadromous Fish (8.6 acres impacted), Passerine Birds (14.9 acres), Waterfowl (1.9 acres), Amphibians (9.8 acres), Small Mammals (13.2 acres), Exports Organic Matter (10.9 acres), Ground Water
    TagsACC, Auburn Wetland, Environmental Impact Statement, Lora Lake, Miller Creek, NEPA, Pollution Control Hearings Board
  • 2002-10-22

    EXH AR034994: Attachment B — Wetland Acreage Impacts by Wetland Function

    Attachment B table summarizing wetland acreage impacts by wetland function, associated with AR034994. Lists nine wetland functions including Resident/Anadromous Fish (8.6 acres), Passerine Birds (14.9 acres), Waterfowl (1.9 acres), Amphibians (9.8 acres), Small Mammals (13.2 acres), Exports Organic Matter (10.9 acres), Ground Water Exchange (13.0 acres), Flood Storage (4.6 acres), and Nutrient/Sediment Trapping (16.3 acres).
    TagsACC, Environment, Environmental Impact Statement, NEPA, Pollution Control Hearings Board, Water Quality
  • 2002-10-22

    EXH AR034984: Resume of James C. Kelley, Ph.D. — Wetland Ecologist, Parametrix

    Resume of James C. Kelley, Ph.D., wetland ecologist with Parametrix, covering 16 years of professional experience in aquatic ecology, wetland delineation, mitigation planning, NEPA compliance, Section 404 Clean Water Act permitting, and Endangered Species Act compliance. Projects include SR 509 East-West Corridor EIS Wetland Report for Washington State Department of Transportation (Port of Tacoma), Port
    TagsACC, Clean Water Act, Environmental Impact Statement, NEPA, Pollution Control Hearings Board, Port Of Seattle, WSDOT
  • 2002-10-21

    EXH 391: Army-EPA MOA – Mitigation Determination Under CWA Section 404(b)(1)

    This 2001 Memorandum of Agreement between the U.S. Army and the EPA outlines the policies and procedures for determining what types of mitigation are required when issuing permits for discharging dredged or fill material into waters under Clean Water Act Section 404. It establishes a three-step mitigation sequence — first avoiding impacts, then minimizing unavoidable impacts, and finally providing compensatory mitigation for any remaining harm — with a goal of no overall net loss of wetlands. The document provides guidance to Army Corps of Engineers and EPA field personnel on how to evaluate standard permit applications in compliance with these environmental protection standards.
    TagsACC, Army Corp of Engineers, Clean Water Act, EPA, NEPA, Pollution Control Hearings Board
  • 2002-01-17

    EXH AR053252: Third Runway FLAC Analysis of MSE Walls — Hart Crowser Draft Memorandum

    Draft memorandum dated January 17, 2002 from Hart Crowser engineers Doug Lindquist, Reda Mikhail, and Michael Bailey to Jim Thomson (HNTB Corporation), project number 4978-40, regarding FLAC (finite difference model) seismic analysis of three proposed mechanically stabilized earth (MSE) retaining walls for the Third Runway project at Seattle-Tacoma International Airport. Analyses cover four wall sections
    TagsACC, Earthquake, Mechanically Stabilized Earth, NEPA, Pollution Control Hearings Board, Sea-Tac Airport, Third Runway
  • 2002-01-02

    EXH AR026605: Seattle Master Plan Update — Natural Resources Mitigation Plan Changes (Auburn Grading Plan, June 28, 2001)

    This document summarizes changes made to the Port of Seattle Master Plan Update's Natural Resources Mitigation Plan to comply with a Water Quality Certification issued September 21, 2001. It outlines revisions to grading plans, culvert placements, wetland crossings, drainage controls, and planting schedules at the Auburn mitigation site, along with corresponding resolutions for each identified concern. The updates address issues such as water impoundment, erosion prevention, bald eagle habitat protection, and invasive species removal.
    TagsACC, Auburn Wetland, NEPA, PCHB, Pollution Control Hearings Board, Port Of Seattle, Stormwater, Third Runway, Water Quality

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  • 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

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    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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