TagNPDES(130)

This is a library catalog (LBY-2002) listing 16 documents published in 2002 and held in an archive related to Sea-Tac Airport and regional aviation policy. The collection covers topics including airport noise studies, FAA forecasts, wetland mitigation, water quality permits, and legal proceedings involving Section 401 and 404 environmental certifications for the airport. Each entry provides the document title, author or agency, publication date, and the date it was added to the archive.

Paper by Scott A. Tobiason (Port Of Seattle) and Linda R. J. Logan (Parametrix Incorporated) documenting stormwater whole effluent toxicity (WET) testing at Seattle-Tacoma International Airport (STIA) during 1998-99 across four NPDES permit outfalls. WET tests used Daphnia pulex and Pimephales promelas (fathead minnow); outfall SDN1 draining 6 hectares of rooftops and roadways failed Washington

Pages 26-28 of law review article published at 25 Envtl. L. 255, containing footnotes FN148–FN189 covering Clean Water Act (CWA) enforcement topics including: NPDES permitting, nonpoint source pollution, Section 303(d) TMDL lists, Section 401 water quality certification, Section 1313(d), 33 U.S.C. ss 1319, 1341, 1365, 1377(e); cases including Northwest Envtl. Advocates v. City of Portland

This document outlines a Water Quality Assessment (WQA) conducted in support of the Port of Seattle's Master Plan Update for Seattle-Tacoma International Airport (STIA), focused on evaluating the airport's ability to meet water quality requirements under its NPDES permit following construction of a proposed third runway. The assessment uses three approaches: a Water Effect Ratio (WER) study to adjust water quality standards for site-specific conditions, a mixing zone analysis to determine where standards must be met in receiving streams, and an examination of variability in stormwater quality. The goal is to reach agreement with the Washington Department of Ecology on whether aquatic life in nearby receiving streams will be adequately protected.

Letter and memorandum from EPA Assistant Administrator Robert Perciasepe transmitting the final Interim Permitting Approach for Water Quality-Based Effluent Limitations in Storm Water Permits to State Water Program Directors and EPA Water Management Division Directors. The policy addresses NPDES storm water permit effluent limitations, adopting best management practices (BMPs) in lieu of numeric water quality-based

This document is a fact sheet accompanying an NPDES (National Pollutant Discharge Elimination System) permit issued to the Port of Seattle for Seattle-Tacoma International Airport, governing how the airport manages and discharges treated industrial wastewater and stormwater. It covers discharge locations into Puget Sound, Des Moines Creek, Miller Creek, and the City of SeaTac storm sewer system, and establishes effluent limitations and monitoring requirements. The permit addresses water quality standards, pollution prevention plans, and compliance schedules to protect surrounding waterways from airport-related contaminants.

In this 2001 declaration filed with Washington State's Pollution Control Hearings Board, fisheries biologist Dr. John A. Strand argues that proposed modifications to the Port of Seattle's stormwater discharge permit would harm Walker and Gilliam Creeks near Sea-Tac Airport, which support salmon, trout, and other aquatic life. Dr. Strand contends that Ecology failed to identify specific locations of new construction-related stormwater outfalls, denying the public a meaningful chance to assess environmental impacts. He supports a stay of the permit modification until its compliance with the Clean Water Act can be fully reviewed.

In this 2001 legal declaration, Washington Department of Ecology official Kevin Fitzpatrick addresses water quality concerns raised by the Airport Communities Coalition regarding stormwater discharges from Seattle-Tacoma International Airport during its Third Runway expansion. Fitzpatrick explains that while stormwater discharges have shown elevated levels of copper, lead, and zinc, these instantaneous exceedances do not necessarily constitute violations of state water quality standards, since stormwater fluctuates rapidly by nature. He further outlines steps the Port of Seattle was taking to address pollution, including rerouting de-icing runoff, replacing zinc-emitting metal roofs, and conducting required studies to establish specific effluent limits under the Clean Water Act 401 Certification.

Greg Wingard, an environmental consultant and Executive Director of Waste Action Project, submitted this declaration in a 2001 Pollution Control Hearings Board appeal challenging a permit modification for Seattle-Tacoma International Airport's stormwater discharges. Wingard argues that the modified NPDES permit failed to identify the specific locations of new discharge outfalls into local waterways including Miller, Des Moines, Gilliam, and Walker Creeks, preventing meaningful public participation and environmental review. He contends that without knowing where discharges will occur, it is impossible to evaluate potential cumulative impacts on downstream waterways and riparian property owners.

NPDES Permit WA-002465-1 fact sheet for the Seattle-Tacoma International Airport (STIA), issued to the Port Of Seattle. Establishes basis for effluent limitations and requirements for discharge of treated industrial wastewater to Puget Sound (WA-PS-0270) and stormwater to Miller Creek (WA-09-2005), Des Moines Creek (WA-09-2000), and the City of SeaTac storm sewer, tributary to Gillian Creek