Notes
Exhibit 236 (AR 018956–018957). Letter dated July 31, 2000 from William A. Rozeboom, P.E. and K. Malcolm Leytham, Ph.D., P.E. of Northwest Hydraulic Consultants (NHC), on behalf of the Airport Communities Coalition (ACC), addressed to Jonathan Freedman (U.S. Army Corps of Engineers, Regulatory Branch, Seattle) and Tom R. Luster (Washington State Department of Ecology, Permit and Coordination Unit). The letter concerns the approval process for the Stormwater Management Plan (SMP) for the proposed third runway (3rd runway) at Seattle-Tacoma International Airport (Master Plan Update Improvements). NHC asserts that numerous substantive unresolved concerns—raised in prior letters dated November 24, 1999 and May 3, 2000—remain unaddressed, including issues identified by Pacific Groundwater Group (Sea-Tac Runway Fill Hydrologic Studies Report, June 19, 2000) regarding fundamental flaws in HSPF hydrologic modeling, flow control undersizing, and King County’s 11-page draft preliminary review comments dated 4/5/2000. The letter criticizes a closed-door design review process focused narrowly on HSPF model calibration while neglecting broader SMP issues including Industrial Wastewater System expansion. ACC requests full public disclosure and a meaningful comment period before regulatory certification or approval.