May 1, 2001August 2, 2026

EXH AR029163: 401 Permit Decision-Making, Sea-Tac Airport Third Runway — Technical Meeting Notes, May 1, 2001

Notes

Final draft meeting notes from a 401 Permit Decision-Making technical meeting on May 1, 2001, regarding Sea-Tac International Airport Third Runway, prepared by Rachel McCrea of Floyd & Snider Inc. Attendees included John Drabek and Ann Kenny (Dept. of Ecology), Keith Smith (Port Of Seattle), Kelly Whiting (King County), Paul Fendt and Tom Atkins (Parametrix), Alan Black (HNTB). Topics covered: King County feedback on Deliverables 3, 5, and 6 including revisions to Table A-3, stormwater pond designations (SDN3X, SDN2X, SDN4X, SDS3A, SDN3A, SDS4), Des Moines Creek outfall pipe drawing, Deliverable 7B (154th Street Relocation) involving SDN2X basin and MC4 regional facility, Governor’s Certification Requirement #5 re: hydrologic divide and average in-stream flows, and creation of new Deliverable 9 (Figures) for basin map revisions. Schedule update table included. AR029163, ECY00013994, ECY00013995, ECY00013996.

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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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