250701_42 ERW_Stormwater Report

NOAA 24-hr D 2-Year Rainfall=3.44" 250624_42 ERW Waymaker Prepared by Colliers Engineering & Design HydroCAD® 10.20-5c s/n 04431 © 2023 HydroCAD Software Solutions LLC Printed 7/1/2025 Page 9 Summary for Reach DP2-PR: [40] Hint: Not Described (Outflow=Inflow) Inflow Area = Inflow = Outflow = 0.170 ac, 0.00% Impervious, Inflow Depth = 1.32" for 2-Year event 0.26 cfs @ 12.11 hrs, Volume= 0.019 af 0.26 cfs @ 12.11 hrs, Volume= 0.019 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Reach DP2-PR: Hydrograph 0.28 0.26 0.26 cfs 0.26 cfs Inflow Outflow Inflow Area=0.170 ac 0.24 0.22 0.2 Flow (cfs) 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 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)