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Conceptual Flow Model Presentation for the Seattle-Tacoma International Airport (STIA) Ground Water Study, prepared by Associated Earth Sciences, Inc. and S.S. Papadopulos and Associates, Inc. for the Port of Seattle, presented to the Washington State Department of Ecology on June 30, 1999. Document outlines study area including Des Moines Creek, Miller Creek, Bow Lake, City of Seattle Highline Well Field, Highline Water District wells (Angle Lake and Des Moines), and Water District #54 Well Field. Covers 13 AOMA study areas including fuel farms and hydrant systems for United Airlines (UNFUF), Continental Airlines (CONFF, CONHS), Northwest Airlines (NWBFF, NWABN, NWFHT, NWHS2), Delta Airlines (DELFF, DELAG), Pan American Airlines (PAFFF, PAFAT), Budget Auto Facility (BDGPL), and RAC Auto Facility (RACFT). Includes figures on stratigraphy (Qva, Qc(3), Qc(4) aquifers), hydrogeology, cross-sections, ground water flow maps, hydrographs, and aquifer parameters.

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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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