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Page 19 Table 10. Soils Mappd within the Project Area Map unit name % of Area Hydric Category (% Hydric) Hydrologic Soil Group Farmland Classification Hubbard loamy sand, 1 to 6 percent slopes 55.40% Predominantly Non-Hydric (3%) A Not prime farmland Sandberg loamy sand, 1 to 6 percent slopes 16.30% Predominantly Non-Hydric (5%) A Not prime farmland Hubbard-Mosford complex, Mississippi River Valley, 0 to 3 percent slopes 10.80% Predominantly Non-Hydric (1%) A Not prime farmland Elk River fine sandy loam, 0 to 2 percent slopes, rarely flooded 10.10% Predominantly Non-Hydric (1%) B All areas are prime farmland Sandberg loamy coarse sand, 6 to 30 percent slopes 6.30% Non-Hydric (0%) A Not prime farmland Hubbard loamy sand, 2 to 12 percent slopes 0.90% Non-Hydric (0%) A Not prime farmland Water 0.30% Non-Hydric (0%) -- Not prime farmland Fifteen soil borings were dug to depths ranging from 15 to 30 feet with one boring extending to a nominal depth of 60 feet. “At the surface, the soil borings encountered about 1 to 4.5 feet of topsoil that consisted of silty sand or silty clayey sand.” “Below the topsoil, the soil borings encountered sandy native alluvial soils that extended to the termination depth of the borings. The sandy native soils consisted of poorly graded sand, poorly graded sand with silt and silty sand” (Appendix D). Three piezometers were installed in selected soil borings. Topography on the site peaked along the northern site boundary (896 ft MSL) and was lowest along the western site boundary (Mississippi River; 850 ft MSL). Generally, the site was flat, with steeper topography along the Mississippi River. Based on the Digital Elevation Model (DEM), the hillside sloping down to the Mississippi River and the lower cultivated field has slopes ≥18% (Figure 3). Portions of this hillslope met the definition of a bluff (per the Sherburne County Zoning Ordinance and Elk River City Code) (1) (2). The Web Soil Survey (WSS) was used to evaluate the onsite soil suitability for the proposed uses. The categories descriptions and ratings are included in Appendix F. The soil map unit corresponding to the lower cultivated field (map unit symbol 771) and the steep hillslope (map unit symbol 258E) were consistently the areas of limitation. Residential development and large- scale grading are not anticipated in these areas. The residential/commercial portions of the development are concentrated on the eastern upper sandy soils. These soils are listed as somewhat limited for lawns/landscaping. Soils could be amended and irrigated as needed. A landscaping plan has not yet been developed at this time, but it is anticipated sod will be brought in and other vegetation will be selected based on soil suitability. The proposed land use and lot coverage/density is going to require an unknown volume of water to retain sod/plant moisture. Per the Geotechnical Exploration Report, “the vegetation and topsoil are not suitable for foundation, roadway, or utility support and will need to be removed from below the building