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 42 Subcatchment P3C: P3C- Roof Area Hydrograph 0.32 Runoff 0.30 cfs 0.3 NOAA 24-hr D 0.28 0.26 10-Year-2020 Rainfall=5.38" 0.24 P2=3.47" 0.22 Runoff Area=4,500 sf 0.2 Runoff Volume=1,928 cf Flow (cfs) 0.18 0.16 Runoff Depth=5.14" 0.14 Flow Length=106' 0.12 Tc=1.1 min 0.1 0.08 CN=98 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)