V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

68 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 6 DA-4 (Pervious) Hydrograph type = SCS Runoff Peak discharge = 13.41 cfs Storm frequency = 100 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 54,939 cuft Drainage area = 4.840 ac Curve number = 54* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 14.30 min Total precip. = 8.66 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran * Composite (Area/CN) = [(2.140 x 30) + (1.440 x 70) + (0.360 x 74) + (0.900 x 80)] / 4.840 DA-4 (Pervious) Q (cfs) Q (cfs) Hyd. No. 6 -- 100 Year 14.00 14.00 12.00 12.00 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00

6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 6