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Gronberg Property Wetland Delineation Report <br /> 110 <br /> 2. OVERVIEW <br /> The 2.47-acre Gronberg Property was inspected on May 25, 2021 for the presence and extent of <br /> wetland. The property was located in Section 32, Township 118N North,Range 23 West, City of <br /> Orono, Hennepin County, Minnesota. The site was situated north of Stubbs Bay, south of <br /> Watertown Road and adjacent to Stubbs Bay Road South (Figure 1). The property corresponded <br /> to Hennepin County PID#'s: 3211823340004 <br /> Gronberg Property consisted of a single family home,manicured lawn,woodland and a single <br /> wetland. Topography of the site sloped from 1006 ft MSL on the eastern portion of the site down <br /> to 974 ft MSL within the wetland on the western portion. Surrounding land use consisted of <br /> single-family residential housing, a public park,woodland and wetlands. <br /> One wetland was delineated within the site boundaries. The delineated wetland boundaries and <br /> existing conditions are shown on Figure 2. <br /> 3. METHODS <br /> Wetlands were identified using the Routine Determination method described in the Corps of <br /> Engineers Wetlands Delineation Manual (Waterways Experiment Station, 1987)and the <br /> • Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Midwest Region <br /> (Version 6.1) as required under Section 404 of the Clean Water Act and the Minnesota Wetland <br /> Conservation Act. <br /> Wetland boundaries were identified as the upper-most extent of wetland that met criteria for <br /> hydric soils,hydrophytic vegetation, and wetland hydrology. Wetland-upland boundaries were <br /> marked with pin flags that were located using a Trimble R1 GPS Unit. <br /> Soils,vegetation, and hydrology were documented at a representative location along the wetland- <br /> upland boundary. Plant species dominance was estimated based on the percent aerial or basal <br /> coverage visually estimated within a 30-foot radius for trees and vines, a 15-foot radius for the <br /> shrub layer, and a 5-foot radius for the herbaceous layer within the community type sampled. <br /> Soils were characterized to a minimum depth of 24 inches(unless otherwise noted)using a <br /> Munsell Soil Color Book and standard soil texturing methodology. Hydric soil indicators used <br /> are from Field Indicators of Hydric Soils in the United States (USDA Natural Resources <br /> Conservation Service(NRCS) in cooperation with the National Technical Committee for Hydric <br /> Soils, Version 8.1,2017). <br /> Mapped soils are separated into five classes based on the composition of hydric components and <br /> the Hydric Rating by Map Unit color classes utilized on Web Soil Survey. The five classes <br /> include Hydric (100 percent hydric components), Predominantly Hydric(66 to 99 percent hydric <br /> 2 <br />