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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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  • Everything you think you know about the airport is wrong.

TagACC(1534)

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  • 2002-10-22

    EXH 711: Bibliography — Stormwater & Aquatic Environmental References, STIA EIS

    This document is a reference bibliography (Exhibit B) listing scientific and regulatory sources related to environmental monitoring at Seattle-Tacoma International Airport. It includes studies on stormwater quality, aircraft de-icing and anti-icing fluid toxicity, aquatic habitat assessment, and sediment guidelines, drawn from sources such as the Port of Seattle, Parametrix Inc., and various environmental agencies. The references support environmental compliance reporting under the airport's NPDES stormwater permit.
    TagsACC, Deicing, Pollution Control Hearings Board, Port Of Seattle, Sea-Tac Airport, Stormwater, Third Runway, Water Quality
  • 2002-10-22

    EXH AR026409: Wetland Mitigation Calculations — Vacca Farm

    This document outlines wetland mitigation calculations for the Vacca Farm site, detailing compensation actions such as wetland restoration and enhancement across various locations including Lora Lake and prior converted croplands. Adjustments were made to credit acreages based on state ecology findings and documentation gaps; for example, the 6.60-acre converted cropland credit was reduced to 3.30 acres because the state identified those areas as existing wetlands requiring enhancement ratios rather than restoration ratios. In total, the site's original 10.48 credit acres were adjusted down to 5.61 acres after accounting for these regulatory and documentation considerations.
    TagsACC, Ecology, Environment, Lora Lake, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third Runway
  • 2002-10-22

    Exhibit 701: Streams — Development Standards (Sea-Tac Municipal Code 15.30.340 and King County Code 21A.24.360)

    City of SeaTac Municipal Code section 15.30.340 and King County Code section 21A.24.360 establishing stream development standards and minimum buffer requirements from the ordinary high water mark (OHWM). Specifies buffers for Class 1 streams (100 feet), Class 2 streams used by salmonids (100 feet), Class 2 streams not used by salmonids (50 feet), and Class
    TagsACC, City Of SeaTac, King County, Land Use, Pollution Control Hearings Board, Salmon, Water Quality
  • 2002-10-22

    Exhibit 696: Missing Document Notice

    Exhibit 696 placeholder page indicating the document was not present at time of scanning. Administrative record reference AR 026131.01. No substantive content available; document absent from scanning batch.
    TagsACC, Airport, pdf, Pollution Control Hearings Board, unreadable
  • 2002-10-22

    Exhibit 691 Was Not Present At Time Of Scanning

    This document is a placeholder page indicating that Exhibit 691 was not available at the time of document scanning. It is associated with administrative record reference AR 025988.01. No substantive content is present.
    TagsACC, Pollution Control Hearings Board
  • 2002-10-22

    EXH AR025787: 30% Submittal – Third Runway Embankment Construction Phase 4

    This document is a 30% design submittal prepared by HNTB Corporation for the Third Runway Embankment Construction Phase 4 project at Seattle-Tacoma International Airport. It is an oversized engineering exhibit, submitted without a date, representing an early-stage design milestone in the ongoing construction of the airport's third runway. The submittal is part of the administrative record (AR 025787) related to the runway expansion project.
    TagsACC, Construction, PCHB, Pollution Control Hearings Board, Third Runway
  • 2002-10-22

    EXH AR024993: Site-Specific Water Quality Standard WER Study Process Flowchart

    This document outlines the Port of Seattle's step-by-step process for applying water quality standards at a specific site, focusing on copper toxicity testing in local waterways. The flowchart guides researchers through a series of studies — including screening, range-finding, and definitive toxicity tests using waterfleas and fathead minnows — to determine whether copper levels in outfall and receiving waters pose environmental risks. Depending on test results and regulatory approval from the Washington State Department of Ecology, the process may lead to a Water Effect Ratio (WER) study or a Translator Study.
    TagsACC, Ecology, PCHB, Pollution Control Hearings Board, Port Of Seattle, Third Runway, Water Quality
  • 2002-10-22

    Exhibit 2238: Placeholder — Not Present at Time of Scanning

    Exhibit 2238, Administrative Record AR 034933.01, was not present at the time of scanning. No substantive content available; placeholder page only. Document is part of the administrative record indexed as AR 034933.01.
    TagsACC, PCHB, Pollution Control Hearings Board
  • 2002-10-22

    Exhibit 2233: Sources of Urban Stormwater Pollutants Defined in Wisconsin

    Technical Note #15 from Watershed Protection Techniques, I(1):30-31, covering sources of urban stormwater pollutants as defined in Wisconsin. Based on Bannerman, R., D. Owens, R. Dodds, and N. Hornewer (1993) study published in Water Science & Technology (28):3-5, pp. 241-259. Over 300 runoff samples collected from 46 micro-sites in two watersheds. Documents pollutant concentrations of
    TagsAcademic Journals, ACC, Environment, pollution, Pollution Control Hearings Board, Stormwater, Water Quality
  • 2002-10-22

    EXH AR034841: Cars Are Leading Source of Metal Loads in California

    Technical Note #13 from Watershed Protection Techniques 1(1):28, summarizing a Santa Clara Valley Nonpoint Source Program study on metal pathways into the Lower San Francisco Bay. Cars and vehicles found to produce over 50% of total loads of copper, cadmium, and zinc; brake pad wear alone accounts for 50% of total copper load; tire wear
    TagsACC, Environment, pollution, Pollution Control Hearings Board, Stormwater, Water Quality

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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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