251203_42 ERW_Stormwater Report

NOAA 24-hr D 2-Year Rainfall=4.09" 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 21 Pond BASIN: Hydrograph 6.68 cfs Inflow Area=2.619 ac Peak Elev=16.73' Storage=0.189 af 7 6 Flow (cfs) 5 4 3 1.68 cfs 2 1.36 cfs 1 0.31 cfs 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