August 5, 2001August 2, 2026

EXH AR018284: Ecology Draft 401 Water Quality Certification for Third Runway at STIA — Revised Draft and Attachments

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Email from Ann Kenny (Washington State Department of Ecology) dated August 5, 2001, distributing a revised Draft 401 Water Quality Certification for the construction of a Third 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, Washington. The draft certification references U.S. Army Corps of Engineers Public Notice 1996-4-02325, JARPA application dated October 25, 2000, NPDES permit #WA-002465-1, Hydraulic Project Approval, Clean Water Act Sections 301, 302, 303, 306, 307, and the Coastal Zone Management Act Section 307(c)(3). Recipients include Gordon White, Raymond Hellwig, Erik Stockdale, Kevin Fitzpatrick, John Drabek, Dave Garland, Ching-Pi Wang, and ATG staff. The enclosed draft certification letter is addressed to Elizabeth Leavitt at Port Of Seattle.

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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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