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Exhibit 208: Port Of Seattle Section 404 Application Letter — Third Runway Master Plan Update Wetland Fill, Sea-Tac Airport

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In December 1996, the Port of Seattle submitted a Section 404 permit application to the U.S. Army Corps of Engineers to place fill material into wetlands at Seattle-Tacoma International Airport as part of its Master Plan Update, which included construction of a third parallel runway. The proposed runway, located 2,500 feet west of the existing runways, was intended to address severe arrival delays during poor weather conditions, which reduced airport capacity from 60 to as few as 24 arrivals per hour roughly 44% of the year. The application was the result of nearly a decade of regional planning, environmental review, and public involvement, including studies confirming that no feasible supplemental airport sites existed in the four-county region.

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Exhibit AR018609. December 18, 1996 letter from Barbara Hinkle, Senior Environmental Specialist, Port Of Seattle, to Jack Kennedy, U.S. Army Corps of Engineers Seattle District Office, submitting a Section 404 application to place fill material into waters of the United States at Seattle-Tacoma International Airport for Master Plan Update improvements. Details wetland impacts: Third Parallel Runway 7.38 acres, Runway Safety Areas (16L/R) 2.34 acres, Terminal/Landside improvements 2.51 acres (South Aviation Support Area and North Employee Parking Lot), subtotal 12.23 acres. References February 1996 FAA/Port of Seattle joint NEPA/SEPA Final EIS, PSRC Resolution A-93-03, Resolution EB-94-01, Resolution A-96-02, Puget Sound Air Transportation Committee (PSATC), Flight Plan Study, and PSRC Expert Panel findings. Discusses poor weather operating constraints, VFR/IFR arrival delays, $42 million annual delay costs under 1992 demand, and projected $176 million at 425,000 annual operations. Third runway located 2,500 feet west of existing 16R/34L.

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