Notes
Northwest Hydraulic Consultants letter dated February 15, 2001, submitted on behalf of the Airport Communities Coalition (ACC) to U.S. Army Corps of Engineers (Jonathan Freedman) and Washington State Department of Ecology (Ann Kenny), providing technical review comments on the December 2000 Comprehensive Stormwater Management Plan (SMP), Natural Resource Mitigation Plan (NRMP), and Wetland Functional Assessment (WFA) for the Seattle-Tacoma International Airport Third Runway and Master Plan Update Improvements project (Corps Reference No. 1996-4-02325). Authors Mr. Rozeboom and Dr. Leytham identify deficiencies including: inconsistent stormwater control standards between the SMP and NPDES Permit No. WA002465-1 Special Condition S14; lack of detailed plans and independent review process; failure to address KCSWDM Core Requirement 7 financial guarantees; and concerns over Miller Creek and Des Moines Creek peak flow impacts. References King County Surface Water Design Manual (KCSWDM), HSPF simulation model, Parametrix Inc., and Ecology Stormwater Management Manual for the Puget Sound Basin.