March 4, 1999August 2, 2026

Exhibit 2109: Email Chain RE: Friday Sea-Tac Airport Meeting on 401 Certification and Stormwater, Third Runway

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Email chain dated March 4, 1999 among Tom Luster, Kevin Fitzpatrick, Raymond Hellwig, and Paula Ehlers (Washington State Department of Ecology, NWRO) regarding a Friday meeting at the Army Corps of Engineers about Sea-Tac Airport Third Runway citizen group concerns. Attendees included Corps staff Tom Mueller, Gail Terzi, Jonathan Freedman, Siri Nelson, and citizen group representatives Al Furney (RCAA), Larry Corvari (CASE), Greg Wingard (WAP), and Chris Gower. Discussion covers 401 Certification stormwater implementation, NPDES permit, and a March 25 meeting scheduled by Elizabeth Leavitt of Port of Seattle (POS) at NWRO. References attached memos on 401-StormwaterMemo2 and 401-402table regarding 401 certifications and stormwater. AR033716, AR033717, ECY00000506.

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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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