Comments regarding the Draft Supplemental Environmental Impact Statement (SEIS)

A March 1997 public comment letter submitted to the FAA raises detailed concerns about the Draft Supplemental Environmental Impact Statement (SEIS) for Sea-Tac Airport's proposed third runway expansion, questioning the adequacy of noise mitigation planning, air quality analysis, and traffic projections. The author challenges the FAA's consideration of regional alternatives such as Moses Lake and Paine Field, disputes the accuracy of capacity and operations forecasts, and demands side-by-side presentation of comments and agency responses. Key issues include new flight corridor noise impacts on western neighborhoods, potential Clean Air Act violations, and construction concerns related to borrow areas in Des Moines.

Notes

A detailed public comment letter submitted to the FAA Northwest Mountain Region regarding the Draft Supplemental Environmental Impact Statement for Sea-Tac Airport expansion. The author raises numerous concerns including alternatives to expansion (GPS, regional airports, Moses Lake), air quality conformity, noise abatement for new flight corridors, traffic analysis discrepancies, construction impacts from borrow areas, and capacity figures. The letter requests side-by-side presentation of comments and responses in the final SEIS and invokes NEPA requirements for agency response.

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