V4 11 Stormwater Report Rev 3 1 26 2023

88 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 = 31.90 cfs Storm frequency = 100 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 147,308 cuft Inflow hyd. No. = 9 - DA-3 Max. Elevation = 417.96 ft Reservoir name = Basin #2 Max. Storage = 13,372 cuft Storage Indication method used. Basin #2 Q (cfs) Q (cfs) Hyd. No. 12 -- 100 Year 40.00 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 12 Hyd No. 9 Total storage used = 13,372 cuft