Notes
Northwest Hydraulic Consultants (NHC), retained by the Airport Communities Coalition (ACC), writes to the Washington State Department of Ecology expressing concern that Ecology’s March 9, 2001 memorandum endorses the SeaTac Airport low streamflow analysis without addressing substantial technical concerns raised by NHC and King County. The letter identifies specific flaws in the analysis, including improper use of future conditions to define ‘existing’ conditions, missing hydrology model input files, and failure to account for seepage impacts and gravel mining operations. NHC requests Ecology revisit its review and require the applicant to respond to previously raised issues before regulatory certification.
