02/27/2008 Env Bd Packet - Laserfiche WebLink

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Engineers, and the Minnesota Department of Natural Resources. As the conservation areas are restored, managed, and enjoyed by the residents of Foxborough and visitors to the conservation areas, it is important that the residents of Foxborough and other project stakeholders be kept well informed and involved in planning and implementation of management actions, as well as the supporting science, policies, and agreements that support these management decisions. Such an approach has been demonstrated within similar private conservation developments and public preserves and open spaces to be successful in helping to foster a core group of local citizens who are well informed, more involved, and take a proprietary interest in the restoration and stewardship of the natural resources and cultural amenities within permanent conservation areas. II. Landscape Context and Site History Foxborough is a 51 -acre residential conservation development located in southeastern Lino Lakes. The legal description for the site is T31N R22W NE'/ of the NE'/ 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 Foxborough 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 Foxborough site and surrounding landscape are comprised of predominantly sandy soil types typical of the Anoka Sand Plain. Within Foxborough's conservation areas, the upland soils types are Soderville loamy fine sands with 0 to 3 percent slopes. Wetland and transitional areas are comprised of Isanti fine sandy loams, with 0 to 2 percent slopes. 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 ellipsoidalis), as well as upland prairie grasses and forbs in non - forested areas. Isanti soils are poorly to very poorly drained, with a water table at plus 1 foot to 0.5 feet below the soil surface for the very poorly drained, depressional phase, and 0.5 to 1.5 feet below the soil surface for poorly drained phase at some time October through June in most years. Native • vegetation of Isanti soils is typically comprised of Grasses (Poaceae), Sedges (Cyperaceae), Foxborough Conservation Development Restoration and Management Plan 3 • • •