Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

24-223 DRAINAGE DESIGN-PROPOSED-UPDATE NOAA 24-hr D 2-Year-2020 Rainfall=3.47", 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 20 Subcatchment P3B-P: P3B PERVIOUS Hydrograph 0.032 Runoff 0.03 cfs 0.03 0.028 NOAA 24-hr D 0.026 2-Year-2020 Rainfall=3.47" 0.024 P2=3.47" 0.022 0.02 Runoff Area=1,881 sf Runoff Volume=191 cf Flow (cfs) 0.018 0.016 Runoff Depth=1.22" 0.014 Flow Length=188' 0.012 0.01 Tc=5.8 min 0.008 CN=74 0.006 0.004 0.002 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)