Notes
Parametrix, Inc. (Jim Kelley, Ph.D.) transmittal to Muffy Walker, U.S. Army Corps of Engineers (ACOE), dated November 2, 2001, project number 556-2912-001-03, for STIA MPU Natural Resource Mitigation. Responses address six ACOE questions on October 26, 2001 submittals: (1) air photo accuracy for Wetland B14 and Borrow Area 4 in 1980/1990/1964 photos; (2) Miller Creek basin (~5,140 acres), Walker Creek sub-basin (~540 acres), and Des Moines Creek basin (~3,750 acres) sizes with King County GIS land use data; (3) low-flow vault mitigation for Walker Creek and Pond F infiltration unsuitability per Hart Crowser memorandum May 23, 2001; (4) wetland/open water acreage table showing percent change for Miller Creek (-4.0%), Walker Creek (-3.3%), and Des Moines Creek (-3.8%) including Vacca Farm, Lora Lake, Des Moines Way Nursery, Bow Lake, and WSDOT SR509 Wetland B; (5) cattail performance standards (<10% cover) at Auburn mitigation site per Table 7-7.1; (6) SMP Table 6-2. AR 026273–AR 026275. Carbon copy to Elizabeth Leavitt, Port of Seattle.