Notes

Responsiveness summary for NPDES Permit No. WA-002465-1 issued by Washington State Department of Ecology to Port Of Seattle for Seattle-Tacoma International Airport (Sea-Tac Airport), prepared by Lisa Zinner, P.E., February 20, 1998. Covers discharge of treated industrial wastewater and stormwater; public meeting held November 3, 1997 and public hearing November 10, 1997 at Burien Public Library; written comment period closed December 10, 1997. Topics include interim and final effluent limitations, mixing zone Outfall 001, stormwater drainage system, ground water discharges, construction-related discharges, glycols usage, deicing, NPDES monitoring requirements, compliance schedule, bypass procedures, and solid waste disposal.

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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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