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• II. Landscape Context and Site History • The Preserve is a 52.5 -acre residential conservation development located in southeastern Lino Lakes. The legal description for the site is T31N R22W S1/2 of Section 28 and N1/2 of Section 33. The conservation development is located along a regionally significant greenway and open space corridor that has been identified by the City of Lino Lakes and the Minnesota DNR (Figure 1). Geology, Soils, and Groundwater The Preserve Conservation Development is located within the Anoka Sand Plain ecological subsection of Minnesota. The Anoka Sand Plain is a large glacial outwash plain that includes most of Anoka, Isanti, and Sherburne Counties and portions of Washington, Chisago, Ramsey, and Hennepin Counties in central Minnesota. This extensive sand plain was formed at the end of the last major ice age, circa 10,000 — 12,000 years ago, as receding of glacial ice lobes to the north formed expansive sand and gravel outwash plains along glacial river ways within central Minnesota. The soils of The Preserve site and surrounding landscape are comprised of predominantly sandy and sandy loam soil types typical of the Anoka Sand Plain. Within The Preserve's conservation areas, the upland soils types are: Zimmerman fine sand, Lino loamy fine sand, Soderville fine sand, and Isanti fine sandy loams. Wetland and transitional areas are comprised of Isanti fine sandy loams, and Rifle muck (an organic peat soil type). Zimmerman fine sands consist of very deep, excessively drained soils that formed in sandy glacial outwash or lake sediments on glacial outwash plains, stream terraces, deltas, lake terraces, dunes, beach deposits and valley trains. These soils have rapid permeability. Their slopes range from 0 to 60 percent. Zimmerman soils are excessively drained, surface runoff is negligible to low and soil permeability is rapid. Most of the acreage in the southern portions of the Anoka Sand Plain is used to grow alfalfa, corn, and soybeans. Most acreage in northern areas remain in forest. Native vegetation was primarily mixed oak forest or jack pine and red pine. Lino loamy fine sands are somewhat poorly drained. Surface runoff is very low. Permeability is rapid. The water table is at 1.5 to 3.0 feet during November to June in most years. These soils are commonly cropped to soybeans and corn. Undeveloped areas are in pasture, forested pasture, or upland forest. Pre - settlement native vegetation was deciduous forest with red and bur oak, aspen, and some water tolerant grasses being the dominant plants. Soderville soils are moderately well drained, and surface runoff is negligible. Permeability of the Soderville soil type is rapid in the upper soil horizons, and moderately rapid in the lower soil profile. Soderville soils have a perched seasonal high water table at a depth of 2.0 to 3.5 feet (below the soil surface) at some time from April through June in most years. Common native vegetation of Soderville soils is White Pine (Pinus strobus), Red Pine (Pinus resinosa), and Red Oak (Quercus rubra), and Northern Pin Oak (Quercus ellzpsoidalis), as well as upland prairie grasses and forbs in non - forested areas. The Preserve Conservation Development - Restoration and Management Plan 4