16628_De Naray_860 Brown Rd. S. - Orono_Delin Report_20210910

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RESOURCE REVIEW WETLAND INVESTIGATION DE NARAY PROPERTY ORONO, MN September 10, 2021 Page 5 RESOURCE REVIEW The below described data were reviewed as part of the aquatic resource field delineation. A summary of each resource contained within the project area follows. NATIONAL WETLANDS INVENTORY The National Wetlands Inventory identifies a seasonally flooded palustrine emergent and a intermittently exposed palustrine aquatic bed wetland in the project area (Appendix A, Figure 2). USDA – NATURAL RESOURCES CONSERVATION SERVICE SOIL SURVEY Soil survey data for Hennepin County was obtained and reviewed prior to the delineation. Table 2 provides a list of the mapped soils in the project area. Figure 3 in Appendix A depicts USDA Natural Resources Conservation Service mapped soils within the project categorized by total percentage of hydric components. Table 2. Summary of mapped soil units in the project area. MAP UNIT SYMBOL MAP UNIT NAME HYDRIC STATUS HYDRIC RATING DRAINAGE CLASSIFICATION PERCENT COVER L16A Muskego, Blue Earth, and Houghton soils, ponded, 0 to 1 percent slopes Hydric 100% Very poorly drained 60% L37B Angus loam, 2 to 6 percent slopes Non-Hydric 5% Well drained 14% L23A Cordova loam, 0 to 2 percent slopes Hydric 95% Poorly drained 13% W Water Not Rated 0% Not Classified 7% L22C2 Lester loam, 6 to 10 percent slopes, moderately eroded Non-Hydric 2% Well drained 5% Hydric soils are defined in the Field Indicators of Hydric Soils in the United States: Guide for Identifying and Delineating Hydric Soils, version 8.2, 2018; The 1987 United States Army Corps of Engineers Wetlands Delineation Manual; and The Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Midwest Region (Version 2.0). MINNESOTA DEPARTMENT OF NATURAL RESOURCES PUBLIC WATER INVENTORY The Minnesota Department of Natural Resources Public Water Inventory for Hennepin County identifies Long Lake Creek (M-056-007), a public water in the project extent (Appendix A, Figure 4). 30-DAY ROLLING PRECIPITATION DATA A review of the 30-day rolling precipitation data collected from the University of Minnesota Climatology Working Group (Appendix D) indicates that precipitation totals for the weeks prior to the site visit were above the range of average in the general project area. The overall hydrologic conditions were suitable, however, for completing an accurate wetland determination and boundary delineation.