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OFF-SITE METHODOLOGY <br /> Map Review <br /> Prior to fieldwork, several mapping sources were consulted to identify potential wetland habitats. <br /> The sources consulted include the United States Fish and Wildlife Service (USFWS) National <br /> Wetland Inventory (NWI), United States Department of Agriculture (USDA) Natural Resources <br /> Conservation Service (NRCS), formerly Soil Conservation Service (SCS) Soil Survey, Minnesota <br /> Department of Natural Resources (DNR) Public Waters Inventory (PWI), and United States <br /> Geological Survey (USGS) Topographic maps. Areas indicating evidence of potential wetland <br /> conditions were evaluated in greater detail through fieldwork. <br /> Precipitation Data Analysis <br /> Precipitation data from the Minnesota Climatology Working Group and Natural Resources <br /> Conservation Service WETS Tables were used in conjunction with the NRCS Method for Evaluating <br /> Antecedent Moisture Conditions to determine precipitation conditions under which the <br /> investigation was conducted. <br /> ON-SITE METHODOLOGY <br /> Field Sampling Procedures <br /> Sample transects were established in representative transition zones between wetland and upland <br /> for each observed plant community. For potential wetland areas greater than five acres in size, a <br /> minimum of three transects were established along the baseline wetland boundary for lengths of <br /> up to one mile, three to five transects for one to two miles, five to eight transects for two to four <br /> miles, and eight or more transects for wetland baseline boundaries that exceed four miles in <br /> length. Transect intervals do not exceed 0.5 mile apart for each other. <br /> Transects are comprised of two sample points, one sample in upland and one sample point in <br /> wetland. A field data sheet was completed describing the dominant soil characteristics (to a <br /> minimum of 24 inches below the soil surface), plant communities, and hydrology indicators at the <br /> sample point. The presence of water was observed after time (depending on soil characteristics) <br /> was allowed for movement of water through the soil substrate. Absolute percent areal cover was <br /> recorded for the species that were observed (which may exceed 100% total area due to overlap) <br /> and dominance was determined by using the 50/20 rule. Vegetation was sampled within each <br /> stratum present at a sample point using the following circular plot sizes: <br /> • Trees - 30 ft radius <br /> • Saplings and Shrubs - 15 ft radius <br /> 3635 Togo Road, Wayzata MN- Wetland Delineation Page 5 <br /> ISG Project No. 17-20520 <br />