Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

24-223 DRAINAGE DESIGN-EXISTING-UPDATE NOAA 24-hr D 2-Year-2020 Rainfall=3.47", 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 22 Summary for Link E-DP 2: EXIST DP 2 Inflow Area = 16,665 sf, 79.43% Impervious, Inflow Depth = 2.82" for 2-Year-2020 event Inflow = 0.61 cfs @ 12.01 hrs, Volume= 3,919 cf Primary = 0.61 cfs @ 12.01 hrs, Volume= 3,919 cf, Atten= 0%, Lag= 0.0 min Routed to Link 9L : TOTAL EXISTING Primary outflow = Inflow, Time Span= 0.00-36.00 hrs, dt= 0.50 hrs Link E-DP 2: EXIST DP 2 Hydrograph Inflow 0.61 cfs Primary 0.65 0.6 0.61 cfs Inflow Area=16,665 sf 0.55 0.5 0.45 0.4 Flow (cfs) 0.35 0.3 0.25 0.2 0.15 0.1 0.05 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)