Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-EXISTING-2026-03-30 NOAA 24-hr D 10-Year-2020 Rainfall=5.38", 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 22 Subcatchment E1C: E1C Pervious-w-offsite-Undisturbed Hydrograph Runoff 1.22 cfs NOAA 24-hr D 10-Year-2020 Rainfall=5.38" 1 P2=3.47" Runoff Area=46,342 sf Runoff Volume=9,633 cf Flow (cfs) Runoff Depth=2.49" Flow Length=668' Tc=13.6 min CN=72 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)