Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-EXISTING-2026-03-30 NOAA 24-hr D 2-Year-2020 Rainfall=3.47", P2=3.47" Prepared by Jarmel Kizel Architects & Engnrs Printed 3/30/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 4 Subcatchment E1A: E1A DISTURBED/IMPERVIOUS Hydrograph Runoff 2.94 cfs 3 NOAA 24-hr D 2-Year-2020 Rainfall=3.47" P2=3.47" 2 Runoff Area=69,893 sf Runoff Volume=18,851 cf Flow (cfs) Runoff Depth=3.24" Flow Length=439' 1 Tc=2.1 min CN=98 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)