2022 10 Drainage Statement Signed

3 Hydrograph Summary Report Hydraflow Hydrographs by Intelisolve v9.1 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 2.723 1 724 9,167 ---- ------ ------ Existing Site (Impervious) 2 SCS Runoff 0.221 1 724 694 ---- ------ ------ Existing Site (Pervious) 3 Combine 2.944 1 724 9,861 1, 2 ------ ------ Existing Total 5 SCS Runoff 2.463 1 724 8,294 ---- ------ ------ Proposed Site (Impervious) 6 SCS Runoff 0.423 1 724 1,260 ---- ------ ------ Proposed Site (Pervious) 7 Combine 2.886 1 724 9,553 5, 6 ------ ------ Proposed Total 2021-11-01 2, 10, 100 yr.gpw Return Period: 2 Year Monday, Oct 24, 2022