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23-4121 storm calcs - Proposed Type II 24-hr 1-Year Rainfall=1.87" Prepared by Carmina Wood Design Printed 5/14/2026 HydroCAD® 10.20-8a s/n 05019 © 2025 HydroCAD Software Solutions LLC Page 9 Subcatchment 1S: Proposed - North Hydrograph Runoff 3.28 cfs Type II 24-hr 3 1-Year Rainfall=1.87" Runoff Area=159,502 sf Runoff Volume=12,245 cf Flow (cfs) 2 Runoff Depth=0.92" Flow Length=738' Tc=24.8 min 1 CN=89 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Time (hours) Page 531 of 849