Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 2-Year-2050 Rainfall=4.09", P2=4.09" Prepared by Jarmel Kizel Architects & Engnrs Printed 3/30/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 82 Subcatchment P3B-IMP: P3B IMPERVIOUS Hydrograph Runoff 0.05 cfs 0.05 NOAA 24-hr D 0.045 2-Year-2050 Rainfall=4.09" 0.04 P2=4.09" 0.035 Runoff Area=980 sf Runoff Volume=315 cf Flow (cfs) 0.03 0.025 Runoff Depth=3.85" 0.02 Flow Length=188' Tc=1.1 min 0.015 CN=98 0.01 0.005 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)