V4 11 Stormwater Report Rev 3 1 26 2023

57 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 12 Basin #2 Hydrograph type = Reservoir Peak discharge = 14.78 cfs Storm frequency = 10 yrs Time to peak = 12.20 hrs Time interval = 3 min Hyd. volume = 72,049 cuft Inflow hyd. No. = 9 - DA-3 Max. Elevation = 416.78 ft Reservoir name = Basin #2 Max. Storage = 9,392 cuft Storage Indication method used. Basin #2 Q (cfs) Q (cfs) Hyd. No. 12 -- 10 Year 18.00 18.00 15.00 15.00 12.00 12.00 9.00 9.00 6.00 6.00 3.00 3.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs)

18 21 24 27 Time (hrs) Hyd No. 12 Hyd No. 9 Total storage used = 9,392 cuft