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 16 Summary for Link 9L: TOTAL EXISTING Inflow Area = 133,103 sf, 63.90% Impervious, Inflow Depth = 2.44" for 2-Year-2020 event Inflow = 3.99 cfs @ 12.03 hrs, Volume= 27,043 cf Primary = 3.99 cfs @ 12.03 hrs, Volume= 27,043 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.50 hrs Link 9L: TOTAL EXISTING Hydrograph Inflow 3.99 cfs Primary 4 3.99 cfs Inflow Area=133,103 sf 3 Flow (cfs) 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 Time (hours)