Category : History(256)

In July 1996, the Puget Sound Regional Council adopted Resolution A-96-02, amending the region's Metropolitan Transportation Plan to include plans for a third runway at Seattle-Tacoma International Airport, paired with additional noise reduction measures. The decision followed years of study, including an Expert Panel finding that neither demand management strategies nor high-speed rail could eliminate the need for expanded capacity. Final approval of the runway remained contingent on environmental review by the Port of Seattle, Federal Aviation Administration permitting, and completion of required noise mitigation steps.

The Expert Arbitration Panel on Noise and Demand/System Management Issues issued its final decision on noise issues related to Resolution A-93-03, which set noise reduction conditions for PSRC authorization of a third runway at Sea-Tac International Airport. A majority of the Panel found that the Port of Seattle had not demonstrated a sufficient reduction in

Washington House Bill 1293 (1995) amended state law governing how port districts can address aircraft noise impacts on nearby properties, expanding soundproofing programs and removing a prior requirement that property owners waive damages and convey easements in exchange for noise mitigation. The bill declared such damage-waiver agreements void as against public policy, meaning residents near airports like Sea-Tac could receive soundproofing benefits without giving up their legal rights. The act was designated an emergency measure, intended to take effect immediately upon passage.

A 1993 Port of Seattle letter to Des Moines resident Barbara Stuhring explains that airplane deicing at Sea-Tac uses only FAA-approved ethylene or propylene glycol, and that wastewater from deicing drains to the airport's treatment system before being discharged to Puget Sound — not to Miller or Des Moines Creeks. A 1996 Final Environmental Impact Statement (EIS) later addressed public concerns about deicing fluid effects on local waterways, concluding that glycol quantities in stormwater runoff were too small and too diluted to cause lethal impacts on aquatic life in those creeks. Stuhring subsequently wrote to the Port challenging what she saw as a contradictory response in the Final EIS compared to the original 1993 letter.

Washington State's Substitute House Bill 1915, signed into law on April 30, 1993, expanded the tools available to port districts for addressing aircraft noise impacts on nearby properties. The law allows ports to offer affected property owners a range of remedies, including property acquisition, transaction assistance, soundproofing programs, and mortgage insurance. A key update permits individual properties to receive benefits more than once if they experience increased or changed aircraft noise levels that would have warranted a different level of mitigation.

This collection contains materials from the Flight Plan Project workshops held in January and February 1993, organized for the Regional Council's Transportation Policy Board and Executive Board to address airport planning and capacity needs in the Puget Sound region. The binders include working papers, overhead presentations, environmental impact statement documents, public hearing records, and correspondence from stakeholders ranging from the FAA and Port of Seattle to community groups opposing airport expansion. Key topics covered include demand management, noise abatement, regional airport system alternatives, and the evaluation of sites such as Sea-Tac and Paine Field.

Washington State's Engrossed Substitute House Bill 2609, passed in March 1992 and effective April 2, 1992, placed a moratorium on the construction or extension of runways of 1,000 feet or more by cities, counties, or port districts in heavily populated western Washington counties. The bill was designed to allow the state's Air Transportation Commission time to complete a comprehensive statewide air transportation strategy, with an interim report due December 1, 1992, and a final report due December 1, 1994. The legislation aimed to balance regional aviation capacity needs with environmental and growth management policies before any major new runway infrastructure was approved.