02/28/2012 Env Bd Packet - Laserfiche WebLink

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• • Woolan's Park Wetland Bank Part B: Appendix 1 Critical Connections Ecological Services, Inc. January, 17th 2012 Page 2 of 3 Soils: Soils mapped within the park include: Isanti fine sandy loam (hydric), Soderville fine sand (non - hydric), and Zimmerman fine sand (non - hydric). Hydric soils cover approximately 90% of the site with non - hydric soils found typically in the northeastern and southeastern parts of the property (Appendix A, Figure 3). Design Report Proposed Work: The goal for wetland banking at Woolan's Park will be to restore and enhance both wetland and upland native plant communities found within the park property. The wetland areas to be restored and enhanced total 12.28 acres and upland areas total 4.18 acres. In all 16.46 acres will be restored and included in the wetland bank for the City of Lino Lakes at Woolan's Park. These areas do not include the utility easement that is located within the northern part of the park: Restoration activities may take place within the easement with the understanding that no banking credit will be gained from this area In general to achieve banking credits, restoration tasks will focus primarily on the conversion of non- native, invasive dominated areas to native dominated plant communities. Areas to be restored and enhanced will have non - native, invasive plants like reed canary grass controlled and converted to a native - dominated plant community. Ultimately the restored areas will contain a higher diversity of native plants that are typical of wet meadows found within the Anoka Sand Plain. In areas of upland (oak, paper birch, and quaking aspen woodlands), the restoration and enhancement tasks will focus on the removal of non - native, invasive woody plants like common buckthorn (Rhamnus cathartica) and glossy buckthorn ( Rhamnus frangula) as well as edges of woodlands /wetlands which include reed canary grass. No water control structures will; be a part of the restoration and enhancement of the wetlands within Woolan's Park. Existing hydrology will not be influenced or modified for this project on -site. Capability of the Site: Since much of the site is an existing wetland with natural hydrology, hydric soils, and established hydric vegetation, the capability of the site to maintain itself as wetland will continue. Hydrology within this wetland complex is derived from the immediately surrounding watershed, the ditch located along the western side, and water discharging from within the wetland itself. Areas of wetland restoration currently have the hydrology to support wetland characteristics and are not considered to be altered in any way for this wetland banking project. Soils mapped within the current wetland boundary are all mapped as hydric soils which will help support the site's ability to be restored from its current condition to a higher quality wet meadow plant community. The topography of the site is generally flat within the existing wetland boundary with some elevation change to the surrounding upland plant communities. Much of the vegetative restoration will be taking place within the current wetland boundary where the level terrain of the site will be conducive to maintaining adequate wetland hydrology. Upland areas within the property boundary are slightly higher in elevation than the wetlands and are dominated by oak woodland and forest. Since no change in site hydrology is anticipated for this project, the upland