TagRCAA(206)

This map from King County's Department of Natural Resources and Parks illustrates the jurisdictional boundaries of the Miller/Walker Creek and Salmon Creek drainage basins in the area surrounding Sea-Tac International Airport and King County International Airport. It identifies the municipalities involved—including Burien, SeaTac, Seattle, Tukwila, Normandy Park, Des Moines, and unincorporated King County—along with key sub-basins such as the Hermes Depression, SW 142nd St. Depression, and Puget Sound Drainage areas. The map serves as a reference for stormwater and land-use planning in a region where airport operations and urban development intersect with sensitive waterways and wetlands.

This document is an environmental evaluation prepared by the U.S. Army Corps of Engineers for a dredge-and-fill permit application submitted by the Port of Seattle (permit no. 1996-4-02325). It assesses the potential impacts of proposed discharge activities on aquatic ecosystems, including effects on water quality, fish and wildlife, wetlands, and human uses such as fisheries and recreation. The evaluation also examines practicable alternatives and outlines measures to minimize or compensate for unavoidable environmental impacts.

This report challenges a 1995 environmental impact study that recommended building a third runway at Seattle-Tacoma International Airport to handle bad-weather flight delays. It argues that poor weather actually restricts the airport to single-runway operations only about 17% of the year—not the 44% claimed in the official study—and that installing an LDA/DME instrument approach system to Runway 16R would be a sufficient and less disruptive alternative. The analysis draws on detailed hourly weather data from 1993 and 1994 to support the conclusion that a costly new runway is unnecessary.

The Regional Commission on Airport Affairs (RCAA) submitted formal scoping comments on the proposed Sea-Tac Airport Master Plan Update, which includes the addition of a third runway, calling for the Environmental Impact Statement to comply fully with both federal NEPA and state SEPA requirements. The RCAA emphasized that the EIS must be a comprehensive, nonpartisan document that is accessible to ordinary citizens and public officials, complete with proper citations, consistent terminology, indexed appendices, and clearly sourced maps and data. The comments also urged that all environmental impacts be analyzed across multiple time horizons, including the full useful life of the proposed runway, and that all study documents be made freely available to the public throughout King and Pierce Counties.

This U.S. Army Corps of Engineers permit (No. 1996-4-02325) authorized the Port of Seattle to construct a third runway at Seattle-Tacoma International Airport, allowing permanent impacts to nearly 20 acres of wetlands and the filling or relocation of up to 980 linear feet of Miller Creek. The permit required the Port to implement a detailed Natural Resource Mitigation Plan, including wetland restoration projects at multiple sites such as Auburn, Vacca Farm, and Tyee Valley Golf Course, monitored over a 15-year period. Additional conditions mandated stormwater quality controls, water toxicity testing, and regular compliance reporting to the Corps of Engineers.

This U.S. Army Corps of Engineers Record of Decision evaluates a permit application from the Port of Seattle (case 1996-4-02325) for construction work in the Seattle area, assessing environmental impacts including effects on wetlands, fish habitat, water quality, air quality, and noise. The document reviews compliance with numerous federal and state laws—such as the Clean Water Act, Endangered Species Act, and National Environmental Policy Act—and addresses public and agency concerns, including those related to airport and aircraft safety. It ultimately documents the Corps' findings and determinations regarding whether to issue, conditionally issue, or deny the requested permit.

This engineering cross-section diagram from Sea-Tac International Airport illustrates the dramatic 179-foot elevation drop adjacent to the proposed Third Runway, showing how a massive retaining wall and new embankment would be constructed alongside Miller Creek. The exhibit depicts key infrastructure features including a permanent chain-link security fence, rock underdrain, silt fence, inner collection swale, and a minimum 50-foot creek buffer zone designed to protect the existing waterway. The drawing is part of the Miller Creek Instream and Buffer Enhancements project documentation associated with the Third Runway expansion.

This is an application form from the Washington State Office of the Governor, inviting citizens to apply for appointment to one of over 200 state boards and commissions. Applicants are asked to submit personal and contact information, employment history, references, and a current résumé to be considered for advisory or policy-setting roles in state government. The form was issued under Governor Christine O. Gregoire and can be submitted by mail or fax to the Governor's Olympia office.

This is a nomination form from the Washington State Office of the Governor used to recommend individuals for appointment to state boards and commissions. It collects the nominee's contact information, background, education, and demographic details, as well as a statement from the nominator explaining why the person should be considered. Completed forms can be submitted by mail, fax, or email to the Governor's Office in Olympia.

This archive documents a long history of water pollution discharged from Seattle-Tacoma (Sea-Tac) Airport into nearby waterways, dating back to 1948. It includes Discharge Monitoring Reports filed by the Port of Seattle showing high concentrations of glycol and other chemicals flowing into local stormwater systems and ultimately Puget Sound, as well as historical letters from the 1950s describing fish kills in Miller Creek and Des Moines Creek caused by airport runoff. The records reveal decades of regulatory correspondence between the Port of Seattle and Washington State pollution authorities over inadequate waste disposal practices.