2025 12 19 Stormwater Report Rev 1

14 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 3.502 6 732 14,935 ------ ------ ------ DA-1 Pervious 2 SCS Runoff 11.85 6 732 58,103 ------ ------ ------ DA-1 Impervious 3 SCS Runoff 0.361 6 732 1,537 ------ ------ ------ DA-2 Pervious 4 SCS Runoff 0.143 6 732 700 ------ ------ ------ DA-2 Impervious 5 Combine 15.35 6 732 73,038 1, 2, ------ ------ DA-1 Combined 6 Combine 0.503 6 732 2,237 3, 4, ------ ------ DA-2 Combined Existing - Current Adjusted.gpw Return Period: 10 Year Tuesday, 12 / 23 / 2025