09-14-2020 Council Packet - Laserfiche WebLink

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8 This would require 26 retail parking stalls and 27 restaurant parking stalls for a total of 53 stalls required. The site plan provides 71 parking stalls so this requirement is met. It should be noted that any retail space proposed for any use other than retail (i.e. restaurant) shall meet the parking requirement ordinance. Grading Plan and Stormwater Management Per the Preliminary Storm Water Management Plan prepared by Pioneer Engineering dated July 6, 2020, the existing topography can be divided into 3 portions. The northern section of the property is generally flat agricultural land used for row crops. This area drains to the northeast to an existing wetland area which then flows to the north. The southern portion of the property is made up of primarily flat agricultural land that is used for row crops. This area drains to a large wetland toward the center which outlets at the southwest corner through a culvert under CSAH 14. The last portion of the property is a small portion on the east side of the property that drains to the existing storm sewer on Otter Lake Road. The glacial till soils consisted of lean clay, sandy lean clay, clayey sand, silty sand, and poorly graded sand with silt. Groundwater was encountered in six of the soil borings ranging from 3 to 9 feet below the surface. The parking lot for this commercial development will be collected in a storm sewer system which will connect to the proposed private road to the north. This storm sewer will be routed to the west where a basin with connected filtration cell will be constructed to abut the existing wetland. This basin will outlet to the existing Wetland A. This wetland will outlet through the culvert located at the southwest, which drains under CSAH 14. The pond is sized for Lot 1 and the private road and may be expanded to accommodate future development. The proposed stormwater management facility shall be reviewed by the City Engineer and RCWD to determine compliance for rate control, water quality and volume control. Public Utilities The new retail building will be municipally served by an 8” PVC sanitary sewer and an 8” DIP watermain located along the private road that extend from Otter Lake Road. Tree Preservation and Mitigation Standards The Environmental Coordinator and Environment Board reviewed the tree preservation and landscaping requirements. The following comments are from the July 29, 2020 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.