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 20 Summary for Link 9L: TOTAL EXISTING Inflow Area = 133,334 sf, 63.85% Impervious, Inflow Depth = 2.44" for 2-Year-2020 event Inflow = 4.03 cfs @ 12.03 hrs, Volume= 27,076 cf Primary = 4.03 cfs @ 12.03 hrs, Volume= 27,076 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-36.00 hrs, dt= 0.50 hrs Link 9L: TOTAL EXISTING Hydrograph Inflow 4.03 cfs Primary 4 4.03 cfs Inflow Area=133,334 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 31 32 33 34 35 36 Time (hours)