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 10 Subcatchment E2-P: E2A PERVIOUS Hydrograph 0.036 Runoff 0.034 0.03 cfs 0.032 NOAA 24-hr D 0.03 0.028 2-Year-2020 Rainfall=3.47" 0.026 P2=3.47" 0.024 Runoff Area=2,099 sf 0.022 Runoff Volume=213 cf Flow (cfs) 0.02 0.018 Runoff Depth=1.22" 0.016 Flow Length=129' 0.014 0.012 Slope=0.0600 '/' 0.01 Tc=6.2 min 0.008 0.006 CN=74 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 Time

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