October 21, 2002August 2, 2026

EXH AR015848: Prefiled Testimony of Joseph Brascher, PCHB No. 01-160, ACC and CASE v. Ecology and Port Of Seattle

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Prefiled testimony of Joseph Brascher submitted in Pollution Control Hearings Board (PCHB) case No. 01-160, Airport Communities Coalition (ACC) and Citizens Against Sea-Tac Expansion (CASE) v. State of Washington Department of Ecology and Port Of Seattle. Testimony covers low streamflow modeling at Seattle-Tacoma International Airport (STIA) using HSPF (Hydrological Simulation Program Fortran) model integrated with Hydrus and Slice models. Covers calibration of Miller Creek and Walker Creek low streamflow, embankment modeling, HSPF input and runoff calculations, effective recharge, and results of analysis. AR 015848-015850.

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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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