01/12/2022 Item 6A, NorthPointe Garden Estates FP & Site Plan

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of the site, the stormwater pond 200P just outside the west-northwest property boundary (Pond 200P), Catchment 33S and 12S to Wetland 1P, which also receives stormwater from the outlets of Ponds 200P and 300P, and Catchment 11 S to Ditch 3P, which is the receiving body for Wetland 1P. The proposed site will only affect drainage to these areas. The majority of the site flows to Ponds 200P and 300P. The remaining stormwater drains between Ponds 200P and 300P to Wetland 1P or to Ditch 3P. All stormwater, ultimately flows to Ditch 3P. The proposed construction will maintain the drainage areas provided in the overall Northpointe master development plan to the maximum extent possible. The proposed apartment lot will meet the overall stormwater treatment requirements from the MPCA Construction Stormwater Permit. Adequate water quality treatment and rate control is provided by the existing regional ponds, wetlands, and ditches. All storm sewers have been sized to accommodate a 10-year storm at a minimum. The proposed development will not have an adverse impact on the existing stormwater infrastructure originally planned for the development of the site. The City Engineer and RCWD will review the stormwater management plan. Public Utilities The new independent senior housing building will be municipally served by an 8" PVC sanitary sewer and an 8" DIP watermain located along Chestnut Street. Tree Preservation and Mitigation Standards The following Tree Preservation and Landscaping information is from the January 4, 2022 Environmental Board staff report. The purpose of these standards is to protect valuable trees and stands of vegetation while not interfering with landowners' reasonable use and development of property. The goal is to minimize unnecessary loss of habitat, biodiversity, and forest resources and to replace removed trees in areas where tree cover is most critical. The Tree Preservation Plan calls for preserving 22 of 55 trees inventoried. The plan calls for removals of 33 trees of 55 trees inventoried. All of the removals are in Basic Use Areas, which are within grading limits, or associated with construction of a retaining wall on the east perimeter. Removals: Basic Use Area Natural Resource Protected Area Non -Environmentally Sensitive Area Mitigation Trees Required 27 No 27 0 6 6 No 2 0