Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 10-Year-2020 Rainfall=5.38", 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 36 Subcatchment P3A-P: P3A PERVIOUS Hydrograph Runoff 0.23 0.22 0.21 cfs 0.21 NOAA 24-hr D 0.2 0.19 10-Year-2020 Rainfall=5.38" 0.18 0.17 P2=3.47" 0.16 0.15 Runoff Area=5,928 sf 0.14 Runoff Volume=1,319 cf Flow (cfs) 0.13 0.12 Runoff Depth=2.67" 0.11 0.1 Flow Length=129' 0.09 0.08 Tc=6.2 min 0.07 0.06 CN=74 0.05 0.04 0.03 0.02 0.01 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)