251203_42 ERW_Stormwater Report

NOAA 24-hr D 100-Year Rainfall=11.52" 251202_42 ERW Waystone - Future Rainfall Prepared by Colliers Engineering & Design HydroCAD® 10.20-5c s/n 04431 © 2023 HydroCAD Software Solutions LLC Printed 12/3/2025 Page 84 Pond BASIN: Hydrograph 23.63 cfs Inflow Area=2.619 ac Peak Elev=19.87' Storage=0.531 af 26 24 22 20 18 Flow (cfs) 13.44 cfs 16 14 12.86 cfs 12 10 8 6 4 0.58 cfs 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours) Inflow Outflow Discarded Primary