Stmpu 1997 05 Fseis Appendix D

forecast demand. As noted in the FAA guidance, the 1996 Master Plan Update has identified the Port’s capital improvement plan, and provides a realistic assessment of needs for accommodating 15.7 million enplaned passengers, which is expected to now occur in year 2005. The plan also reflects the longer-term needs, associated with 19 million enplanements, in a more conceptual fashion. e q tIl Some of the environmental approvals identified by the Final EIS and this Supplemental EIS, may expire within the next 3-5 years. FAA Environmental Guidelines (FAA Order 5050.4 A, Paragraph 102) states “Time Limitations for Environmental Documents b. With regard to approved final impact statements.....(1) if major steps toward implementation of the oroposed action (such as the start of construction, substantial acquisition, or relocation ctivities) have not commenced within 3 years from the date of approval of the final tatement, a written reevaluation of the adequacy, accuracy, and validity of the final =atement shall be prepared. .. .” The Clean Air Act Conformity rules specifically note that a conformity determination “lapses 5 years from the date of the final conformity determination” (40 CFR Part 51.857(a)). [ ! !! ; } p { }} 6. Additional planning will be undertaken at Sea-Tac in the future, encompassing facility requirements and environmental impacts, based on forecasts of short-term, intermediate ald long-term conditions. If these efforts are undertaken around the year 2000, it is anticipated that aviation industry conditions could stabilize, making air travel demand less volatile mId forecasting less uncertain. jf }…
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