Agenda - Council - 12/14/2021 - Laserfiche WebLink

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Trott Brook North Property,Ramsey Wetland Delineation Report Table 2. Soil types mapped on the Trott Brook North site. Symbol Soil Name Acres % of o/0 H dric H dric Category Y Area Y y g Y N A Nymore loamy sand, 0 to 2 26.9 13.40% 0 Not H dric y percent slopes y N B Nymore loamy sand, 1 to 6 34 17.00% 0 Not H dric y percent slopes y N C Nymore loamy sand, 6 to 12 34 17.00% 0 Not H dric y percent slopes y Rf Rifle mucky peat 32.9 16.40% 100 Hydric ZmB Zimmerman fine sand, 1 to 6 13 6.50% 2 PredominantlyNonH dric percent slopes - y ZmC Zimmerman fine sand, 6 to 12 0.6 0.3 0% 4 PredominantlyNonH dric percent slopes - y ZmD Zimmerman fine sand, 12 to 24 0 0.00% 2 PredominantlyNonH dric percent slopes - y The Minnesota DNR Public Waters Inventory (Minnesota Department of Natural Resources 2015) showed DNR Public Wetland 2-319W (unnamed)within site boundaries, and Trott Brook (DNR Public Ditch/Altered Natural Watercourse M-063-001.5) along the much of the south site boundary (Figure 5). The National Hydrography Dataset (U.S. Geological Survey 2015) showed one Lake/Pond surface water feature within site boundaries and one Stream/River along much of the south site boundary (Figure 6). 4.2 Wetland Determinations and Delineations Potential wetlands were evaluated during field observations on June 2, 2021. Eight (8) wetlands were identified and delineated on the property (Figure 2). Corresponding data forms are included in Appendix B. The following description of the wetlands and their adjacent upland reflects conditions observed at the time of the field visit. At that time, the crop field had been planted to corn and vegetation was actively growing in natural areaa on the site. Precipitation conditions were normal (typical) based on the three-month antecedent precipitation data and drier than the normal range based on the 30-day rolling total (Appendix Q. Delineated wetland characteristics are summarized in Table 3 (see page 6). 4.3 Aerial Review for Offsite Hydrology Determinations Methods Areas in agricultural cropland that exhibited potential wetland signatures on aerial photography and with low or depressional topography were reviewed generally following methods described in Using Aerial Imagery to Assess Wetland Hydrology (Minnesota Board of Water and Soil Resources (BWSR) 2010) and Guidance for Submittal of Delineation Reports to the St. Paul District Corps of Engineers and Wetland Conservation Act Local Governmental Units in Minnesota, Version 2.0 (USACE 2015). 5