2025 12 19 Stormwater Report Rev 1

3 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 2.304 6 732 9,795 ------ ------ ------ DA-1 Pervious 2 SCS Runoff 8.974 6 732 43,554 ------ ------ ------ DA-1 Impervious 3 SCS Runoff 0.237 6 732 1,008 ------ ------ ------ DA-2 Pervious 4 SCS Runoff 0.108 6 732 525 ------ ------ ------ DA-2 Impervious 5 Combine 11.28 6 732 53,349 1, 2, ------ ------ DA-1 Combined 6 Combine 0.345 6 732 1,533 3, 4, ------ ------ DA-2 Combined Existing - Future Projected.gpw Return Period: 2 Year Tuesday, 12 / 23 / 2025