Notes
Declaration of William A. Rozeboom, PE, senior engineer at Northwest Hydraulic Consultants, filed in PCHB Case No. 01-133 (Airport Communities Coalition v. State of Washington Department of Ecology and Port Of Seattle) in support of ACC’s motion for stay of Section 401 Certification No. 1996-4-02325 and CZMA concurrency statement issued August 10, 2001. Rozeboom describes over 20 years of experience in surface water hydrology and hydraulics, NHC’s retention since October 1999 to review stormwater facilities and streamflow impacts from the proposed third runway at Sea-Tac Airport. Document addresses impacts to low flows in Des Moines Creek, Miller Creek, and Walker Creek during July–October low-flow period; July 2001 Stormwater Management Plan; Industrial Wastewater System (IWS); impervious surface increase of approximately 300 acres; King County Surface Water Design Manual (KCSWDM); Washington State Department of Ecology Stormwater Management Manual; groundwater infiltration reduction; and Puget Sound discharge. Review letters submitted to Ecology and Army Corps of Engineers dated 11/24/1999 through 8/6/2001. Co-signer Dr. Malcolm Leytham, PE. Exhibit 244, AR 019046.