Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 2-Year-2020 Rainfall=3.47", P2=3.47" Prepared by Jarmel Kizel Architects & Engnrs Printed 3/30/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 14 Subcatchment P3A-P: P3A PERVIOUS Hydrograph 0.1 Runoff 0.095 0.09 cfs 0.09 NOAA 24-hr D 0.085 0.08 2-Year-2020 Rainfall=3.47" 0.075 0.07 P2=3.47" 0.065 Runoff Area=5,928 sf 0.06 Runoff Volume=602 cf Flow (cfs) 0.055 0.05 Runoff Depth=1.22" 0.045 0.04 Flow Length=129' 0.035 0.03 Tc=6.2 min 0.025 CN=74 0.02 0.015 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)