Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

24-223 DRAINAGE DESIGN-PROPOSED-UPDATE NOAA 24-hr D 100-Year-2020 Rainfall=9.18", P2=3.47" Prepared by Jarmel Kizel Architects & Engnrs Printed 1/28/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 64 Subcatchment P3B-P: P3B PERVIOUS Hydrograph 0.17 Runoff 0.16 0.15 cfs 0.15 NOAA 24-hr D 0.14 100-Year-2020 Rainfall=9.18" 0.13 P2=3.47" 0.12 Runoff Area=1,881 sf 0.11 0.1 Runoff Volume=939 cf Flow (cfs) 0.09 Runoff Depth=5.99" 0.08 Flow Length=188' 0.07 Tc=5.8 min 0.06 0.05 CN=74 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 31 32 33 34 35 36 Time (hours)