V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

35 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 2 DA-2 (Pervious) Hydrograph type = SCS Runoff Peak discharge = 6.814 cfs Storm frequency = 10 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 27,428 cuft Drainage area = 3.190 ac Curve number = 72* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 10.10 min Total precip. = 5.22 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran * Composite (Area/CN) = [(0.450 x 30) + (0.100 x 77) + (0.150 x 70) + (2.490 x 80)] / 3.190 DA-2 (Pervious) Q (cfs) Q (cfs) Hyd. No. 2 -- 10 Year 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00

3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 2