2025 12 19 Stormwater Report Rev 1

25 Hydrograph Summary Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2025 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow interval Peak volume hyd(s) elevation strge used Description (origin) (cfs) (min) (min) (cuft) (ft) (cuft) 1 SCS Runoff 7.132 6 732 31,190 ------ ------ ------ DA-1 Pervious 2 SCS Runoff 20.28 6 732 101,003 ------ ------ ------ DA-1 Impervious 3 SCS Runoff 0.734 6 732 3,211 ------ ------ ------ DA-2 Pervious 4 SCS Runoff 0.244 6 732 1,217 ------ ------ ------ DA-2 Impervious 5 Combine 27.41 6 732 132,192 1, 2, ------ ------ DA-1 Combined 6 Combine 0.978 6 732 4,428 3, 4, ------ ------ DA-2 Combined Existing - Current Adjusted.gpw Return Period: 100 Year Tuesday, 12 / 23 / 2025