TagThird Runway(1068)

Internal Ecology meeting notes and talking points dated 8/16/2001 regarding the 401 Water Quality Certification issued for the Third Runway project at Sea-Tac Airport. Ecology staff prepared responses to Port Of Seattle concerns about the certification’s open-ended conditions, covering topics including NPDES major modification, stormwater retrofitting, wetland mitigation, Water Effects Ratio (WER) Study, Walker Creek

Draft memorandum dated 8/13/01 from Ray Hellwig, Director, to Tom Fitzsimmons, Director, Washington State Department of Ecology, recommending approval of a 401 Water Quality Certification for the Port Of Seattle Sea-Tac International Airport (STIA) Third Runway and related projects. Document AR028003 covers the Port’s proposals to construct an 8,500-foot parallel third runway, two Runway Safety

Washington State Department of Ecology news release (AR027998, dated August 10, 2001) approving the Port Of Seattle’s water-quality certification permit under the federal Clean Water Act for construction of a third runway at Seattle-Tacoma International Airport. The permit covers stormwater management for Des Moines, Miller, and Walker creeks; filling of nearly 20 acres of wetlands;

Port of Seattle Addendum #4 (POS SEPA No. 01-16, August 10, 2001) to the Seattle-Tacoma International Airport Master Plan Final Environmental Impact Statement (FEIS) and Final Supplemental Environmental Impact Statement (FSEIS) issued May 13, 1997. Addresses project design changes to Borrow Source Areas 3 and 4 for third runway embankment fill material excavation, and incorporates

This document outlines Washington State Department of Ecology conditions for accepting imported fill material used in construction of Sea-Tac Airport's Third Runway and associated Master Plan improvements. It requires the Port of Seattle to submit environmental assessments of fill sources — including records reviews, site reconnaissance, and soil sampling for hazardous substances such as arsenic, lead, and mercury — at least ten business days before placing any fill. Specific contamination limits (e.g., arsenic at 20 mg/kg, lead at 220/250 mg/kg) and minimum sampling schedules based on fill volume are established to prevent toxic materials from entering state waters and wetlands.

Washington State Department of Ecology Water Quality Certification (Order #1996-4-02325) issued August 10, 2001, to Port Of Seattle for construction of a 8,500-foot third parallel runway and related projects at Seattle-Tacoma International Airport (STIA) in the Miller, Walker, and Des Moines Creek watersheds and wetlands in SeaTac and Auburn, King County. Certifies compliance with Clean

Letter dated August 10, 2001, from James M. Lynch of Stoel Rives LLP, attorney for the Port Of Seattle, to Ken Berg, Manager of the U.S. Fish and Wildlife Service (FWS) Western Washington Office, transmitting a draft Embankment Seepage Monitoring Plan (MP) for the proposed Sea-Tac Airport Third Runway embankment fill. Submitted pursuant to the

Environmental scientist Amanda Azous submitted this declaration to Washington's Pollution Control Hearings Board in support of the Airport Communities Coalition's appeal against permits issued for Sea-Tac Airport's third runway construction. She argues that the Port of Seattle's Natural Resource Mitigation Plan is inadequate to compensate for the destruction of wetlands and streams in the Miller, Walker, and Des Moines Creek watersheds. Azous warns that once wetlands are filled, the damage is irreversible, and requests a stay of the Section 401 Water Quality Certification to prevent permanent environmental harm while the appeal is reviewed.

Dr. Peter Willing, a water resources expert, submitted this declaration opposing the Department of Ecology's water quality certification for Sea-Tac Airport's proposed third runway construction. He argues that the certification relies on vague future performance expectations and unresolved contingency plans that fail to provide reasonable assurance that water quality standards will be met. His key concerns include the Port of Seattle's flawed low streamflow analysis and inadequate stormwater management plans that could perpetuate ongoing water quality violations in nearby Class AA streams.

Washington State Department of Ecology (Ecology) Water Quality Certification letter dated August 10, 2001, addressed to Port Of Seattle, Attn: Elizabeth Leavitt, for U.S. Army Corps of Engineers Public Notice 1996-4-02325. Certifies that construction of a Third Runway and related projects at Seattle-Tacoma International Airport (STIA) in the Miller, Walker, and Des Moines Creek watersheds