Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 100-Year-2020 Rainfall=9.18", 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 52 Subcatchment P1-P: P1 PERVIOUS Hydrograph 0.46 Runoff 0.44 0.43 cfs 0.42 NOAA 24-hr D 0.4 0.38 100-Year-2020 Rainfall=9.18" 0.36 0.34 P2=3.47" 0.32 Runoff Area=5,380 sf 0.3 0.28 Runoff Volume=2,687 cf Flow (cfs) 0.26 0.24 Runoff Depth=5.99" 0.22 Flow Length=444' 0.2 0.18 Tc=7.6 min 0.16 0.14 CN=74 0.12 0.1 0.08 0.06 0.04 0.02 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)