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7 <br />Gross Area -10%Floor Area/300 <br />Total <br />Spaces <br />Required <br />Total <br />Spaces <br />Provided <br />16,941sf <br />15,210 sf <br />1694 <br />1,521 <br />15,247sf /300 = <br />13,689sf/300 = <br />51 <br />46 <br />54 <br />46 <br />Sheet C1, Site Plan indicates 51 43 paved parking stalls and 3 ADA parking stalls for a <br />total of 54 46 parking stalls. Three (3) spaces A temporary emergency vehicle turn <br />around is are being constructed on Outlot A as part of a future shared parking lot. These <br />This area will be covered by a recorded Shared Driveway and Parking Access <br />Agreement. <br />Grading Plan and Stormwater Management <br />Per the City Engineer Memo dated May 3, 2023 June 1, 2023: <br />Stormwater from the existing 4.22 acre vacant lot area drains to storm sewer along <br />Apollo Drive (CSAH 12), which eventually drains to a city maintained pond in the <br />northwest quadrant of the Apollo Drive (CSAH 12) and Lilac Street intersection. <br />The project is proposed to add approximately 1.02 0.98 acres of impervious surface for <br />the childcare facility, parking lot, and entrance drive, according to the Stormwater <br />Management Plan. The applicant is proposing two infiltration basins to meet the runoff <br />rates and water quality standards. <br />A geotechnical evaluation report prepared by Chosen Valley Testing, Inc. was submitted <br />with the application. The report included soil borings which indicated that the soils in the <br />area consist of poorly graded sand with silt. Groundwater was not observed in the <br />borings. <br />The applicant used a HydroCAD model based on the Atlas 14, 24-hour storms to design <br />the storm sewer and infiltration basins. The proposed improvements are designed to <br />reduce site runoff rates for the 2-, 10-, and 100-year rainfall events. Runoff rates for the <br />10-day snow melt event were not provided at this time and are not required as basin <br />outlets are below the 100-year HWL. <br />Pre- and Post- Development Discharge Rates (cfs) <br />Condition 2-Year 10-Year 100-Year 10-Day <br />Snowmelt <br />Existing 0.67 <br />0.64 <br />2.82 <br />2.73 <br />9.56 <br />9.34 Not provided <br />Proposed 0.20 <br />0.22 <br />1.07 <br />1.94 <br />7.18 <br />8.10 Not provided <br />Public Utilities