Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

24-223 DRAINAGE DESIGN-EXISTING-UPDATE NOAA 24-hr D 2-Year-2050 Rainfall=4.09", P2=4.09" Prepared by Jarmel Kizel Architects & Engnrs Printed 1/28/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 62 Subcatchment E1B: E1B DISTURBED/PERVIOUS Hydrograph 0.18 Runoff 0.17 0.16 cfs 0.16 NOAA 24-hr D 0.15 0.14 2-Year-2050 Rainfall=4.09" 0.13 P2=4.09" 0.12 Runoff Area=7,928 sf 0.11 Runoff Volume=1,007 cf Flow (cfs) 0.1 0.09 Runoff Depth=1.52" 0.08 0.07 Flow Length=464' 0.06 Tc=3.6 min 0.05 0.04 CN=72 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)