Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 10-Year-2050 Rainfall=6.37", 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 100 Subcatchment P3A-IMP: P3A IMPERVIOUS Hydrograph 0.34 Runoff 0.31 cfs 0.32 0.3 NOAA 24-hr D 0.28 10-Year-2050 Rainfall=6.37" 0.26 P2=4.09" 0.24 0.22 Runoff Area=4,040 sf 0.2 Runoff Volume=2,064 cf Flow (cfs) 0.18 Runoff Depth=6.13" 0.16 0.14 Flow Length=435' 0.12 Slope=0.0500 '/' 0.1 Tc=1.9 min 0.08 0.06 CN=98 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

2 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)