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25-4181 storm calcs - proposed Type II 24-hr 100-Year Rainfall=5.23" Prepared by Carmina Wood Design Printed 2/11/2026 HydroCAD® 10.20-8a s/n 05019 © 2025 HydroCAD Software Solutions LLC Page 30 Pond 3P: Underground Detention Hydrograph Inflow 7.83 cfs Primary 8 Inflow Area=53,039 sf 7 Peak Elev=529.23' 6 Storage=5,193 cf 8.0" Flow (cfs) 5 Round Culvert 4 n=0.013 2.85 cfs 3 L=24.0' 2 S=0.0050 '/' 1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Time (hours) Page 60 of 65