05-14-2018 Council Meeting Packet

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4 support allowing this material with the same regulations required for EFIS or stucco. The ordinance allows for stucco or EFIS on no more than 30% of the primary front building elevation and no more than 60% of any side or rear building elevation. The elevations have been revised to meet these conditions. Grading Plan and Stormwater Management Per the revised Stormwater Management Plan dated March 22, 2018, on-site stormwater management facilities have been reduced from 3 infiltration basins to 2. These infiltration basins will provide a portion of the water quality treatment for the site. These basins will discharge to existing regional stormwater ponds located adjacent to the site. Per the Braun Geotechnical report dated December 1, 2017, soils are Type A and well compacted. Recommended groundwater elevation is 890. The bottom of the infiltration basin is 893.0 which provides the required of 3 feet separation between bottom of the basin and groundwater. Staff had expressed concerns regarding the location of original infiltration basins being incorporated into the outdoor play areas and potential compaction and degradation of stormwater management facility. The site plan has been revised to separate the basins from the outdoor play area. Public Utilities The new facility will be municipally served by an existing 8” PVC sanitary sewer and an 8” DIP watermain located along Lakota Trail. It should be noted the original 2003 commercial development plan had the watermain looping from Lakota Trail to Hodgson Road. The City Engineer noted the applicant may need to loop the watermain to provide adequate fire flow and pressure to the building. The utility plan was revised to include the watermain loop. This is a private main and the property owner shall be responsible for any maintenance etc. Landscaping and Tree Preservation Plan Canopy cover calculations indicate 7,708 sf of canopy coverage is required. Sheet L1 was revised to include 9 large trees and 2 medium trees that only provide 7,400 sf of coverage. The plan incorrectly gives 1200 value credit for parking lot islands containing 3 or more trees. These requirements have not been met and the landscape plan shall be revised. Foundation plantings are shown on Plan Sheet L1. Due to the orientation of the building and amount of additional landscaping provided on site, the only building elevation requiring foundation plantings is the front façade which is 120 lf. This would require 2 large trees and 6 shrubs. The plan has been revised to include 2 trees and 13 shrubs. These requirements are met. Open area calculations indicate 15,894 sf of open area. This requires 8 large trees and 24 large shrubs. The plan has been revised to include 16 equivalent large trees and 40 equivalent large shrubs. These requirements are met.