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• Heinzeroth Property—Lot 2 Wetland Delineation Report Ms.Heinzeroth Town of Dunkirk,Dane County,Wisconsin November?.2007 NRC Project#007-0238-01 METHODS The initial steps in the wetland determination and delineation process included a review of the following documents: • Natural Resources Conservation Service (NRCS), formerly the Soil Conservation Service(SCS). excerpts from the Soil Survey of Dare County, Wisconsin; • \`RCS list of hydric soils for Dane County: • U.S. Geological Survey 7.5-minute Wisconsin quadrangle maps; • The Wisconsin Wetland Inventory(WWI)maps for the area; and • 2005 Aerial Photography. These documents provide information on where wetlands have been previously identified or areas that possess a high likelihood of wetlands occurring. These initially identified areas were then-visited to make on-site determinations,and where necessary, complete delineations of the uppermost wetland boundary. Wetland determinations were made using the criteria and methods outlined in the USACE Manual (USACE 1987), subsequent guidance documents(USACE 1991, 1992), Guidelines for Submitting Wetland Delineations in Wisconsin to the St. Paul District Corps of Engineers(USACE 1996),and the Basic Guide to Wisconsin's Wetlands and their Boundaries(Wisconsin Department of Administration Coastal Management Program 1995). The U.S. Army Corps of Engineers and U.S. Environmental Protection Agency wetland definition is included below. "Areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and under normal circumstances do support a prevalence of vegetation typically adapted for life in saturated soil conditions." The State of Wisconsin wetland definition differs slightly; however,the Wisconsin Administrative Code also cites the usage of the 1987 Manual. Wetland determinations were made using the three criteria of assessment approach defined in the 1987 Manual. According to procedures described in this Manual,areas that under normal circumstances reflect a predominance of hydrophytes(water-loving vegetation), hydric soils,and wetland hydrology(e.g., inundated or saturated soils) are considered wetlands. Since normal circumstances exist on the site, the Routine Method was employed. A preliminary reconnaissance of the Lot was used to determine the general topography and plant communities within the Lot, and to identify suitable locations for sampling transects. In general,transects are linear features aligned perpendicular to site contours such that they cross representative locations of wetlands and adjacent uplands. The three criteria were evaluated by placing an observation point within a representative location of each plant community encountered along the transect. Regulatory and Scientific Expertise — Wetlands, Soils, Ecology, Restoration Page 2