Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

24-223 DRAINAGE DESIGN-EXISTING-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 42 Subcatchment E1A: E1A DISTURBED/IMPERVIOUS Hydrograph Runoff 7.87 cfs 8 NOAA 24-hr D 7 100-Year-2020 Rainfall=9.18" P2=3.47" 6 Runoff Area=69,966 sf Runoff Volume=52,122 cf 5 Flow (cfs) Runoff Depth=8.94" 4 Flow Length=443' Tc=2.1 min 3 CN=98 2 1 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)