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2 <br /> <br />R-1, Single Family Residential development on standard 80 foot wide lots. The initial plans <br />presented to the Planning & Zoning Board on February 12, 2020 and the Council Work Session <br />proposed 69 single family lots. The revised plan increases the size of Pond 100 for additional <br />stormwater management, relocates the lift station and eliminates 1 single family lot. The total <br />number of single family lots is now 68. <br /> <br />The Land Use Applications are: <br /> <br />• Rezone property from R, Rural to R-1, Single Family Residential <br />• Preliminary Plat <br /> <br />This staff report is based on review the following plan sets and documents: <br /> <br />• Nadeau Acres Civil Plan Set prepared by Carlson McCain revision date March 20, 2020 <br />• Stormwater Management Plan prepared by Carlson McCain revision date March 20, <br />2020 <br />• Stormwater Pollution Prevention Plan prepared by Carlson McCain dated December 6, <br />2019 <br />• Geotechnical Exploration Report prepared by Haugo Geotechnical Services dated <br />December 6, 2019 <br />• Wetland Permit Application prepared by Kjolhaug Environmental Services Company <br />Inc. dated December 23, 2019 <br />• Rare Plant Report prepared by Midwest Natural Resources dated December 12, 2019 <br />• Traffic Impact Study by Spack Consulting dated December 6, 2019 <br /> <br />ANALYSIS <br /> <br />Existing Site Conditions <br /> <br />The 30 acre site contains two (2) parcels currently addressed 6651 & 6677 20th Avenue and is <br />located north of CSAH 34 (Birch Street) and west of CSAH 54 (20th Avenue) across from <br />NorthPointe. The site consists of two (2) single family houses, accessory buildings, <br />agricultural hay fields, and wetlands. The house located at 6677 20th Avenue will be moved <br />onto a new lot and the house located at 6651 20th Avenue will remain in place. Accessory <br />buildings will also be relocated. The existing septic systems shall be removed and wells <br />capped. One NSP utility transmission overhead electric line runs north-south along the west <br />boundary line and another NSP utility transmission line bisects the site diagonally. Both lines <br />are covered by easements. Topography of the site generally slopes downward from the <br />southeast to the northwest at elevations ranging from 925 EL to 905 EL. Groundwater was <br />encountered at depths ranging from 4 to 19 feet. Topsoil was encountered at ½ to 1 foot. <br />Below the topsoil, soils consist of glacial outwash sands and native clayey glacial till and are <br />classified as hydrologic groups HSG D in the southern portion and HSG C in the north. <br /> <br />Land Use and Zoning <br /> <br />Current and Proposed Zoning <br />