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BACKGROUND AND METHODOLOGY <br /> <br />WETLAND INVESTIGATION <br />DE NARAY PROPERTY <br />ORONO, MN <br />September 10, 2021 Page 4 <br />BACKGROUND <br />As requested by Ethan De Naray, Anderson Engineering of Minnesota, LLC completed a wetland investigation at <br />860 Brown Road South (Hennepin county parcel 1011723120001) located Orono, Minnesota (Appendix A, Figure <br />1). The parcel is in Section 10, Township 117 North, Range 23 West. <br />The wetland delineation was completed in accordance with the 1987 United States Army Corps of Engineers <br />Wetland Delineation Manual and the published regional supplement to the Army Corps Wetland Delineation <br />Manual, Midwest Regional Supplement. <br />The purpose of this study was to identify areas meeting the technical criteria for wetlands, delineate the <br />jurisdictional extent of the wetland basins, and classify the wetland habitats in the project area. <br />Fieldwork for this site investigation was completed by Alex Yellick and Dylan Kruzel, on September 3, 2021. The <br />weather was overcast and 62 degrees Fahrenheit. <br /> <br />METHODOLOGY <br />U.S. Geologic Service 7.5” Topographic Quadrangle maps, U.S. Fish and Wildlife Service National Wetland <br />Inventory (NWI) maps, Minnesota Department of Natural Resources Public Water Inventory (PWI) maps, U.S. <br />Department of Agriculture Natural Resources Conservation Service Soil Survey, and available aerial photographs <br />were consulted to initially locate potential wetland habitats. <br />Routine on-site Determination Method was used during this investigation. In this method, the following <br />procedures were used: <br />1. The vegetative community was sampled in all present strata to determine whether it met hydrophytic <br />vegetation criteria based on the indicators identified in the Midwest Regional Supplement. <br />2. Soil pits were dug using a Dutch auger to depths of sixteen to thirty-six inches. The soil profile was noted <br />in addition to any hydric soil characteristics. <br />3. Signs of wetland hydrology were noted and compared to field criteria such as depth to shallow water <br />table and depth of soil saturation found in the soil pits. <br />Data from sample points were recorded on Army Corps of Engineers Midwest Region Wetland Determination Data <br />Forms (Appendix B). At least one sample point transect crosses the delineated wetland edge. This transect consists <br />of an upland sample point and a wetland sample point. Other sample points may be in areas which have one or <br />more other wetland criteria present; where questionable conditions exist; or to verify the absence of wetland <br />criteria. Photographs of each resource is included in the resource review summary pages. <br />Sample points were marked in the field with orange flags. The identified aquatic resource was marked with <br />sequentially numbered pink flags. All sample points and the delineated aquatic resource extent were located using <br />a Trimble Geo XH sub-meter GPS unit. <br />Delineated resources were evaluated using Board of Soil and Water Resource’s Minnesota Routine Assessment <br />Method version 3.2 (MnRAM). Information from desktop and field assessment was evaluated in the system and a <br />management classification ranging from exceptional quality to low quality is output as Preserve, Manage 1, <br />Manage 2, and Manage 3. Resulting classifications are typically utilized in development planning.