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 19 Summary for Link 8L: EXISTING DISTURBED Inflow Area = 77,894 sf, 89.82% Impervious, Inflow Depth = 3.02" for 2-Year-2020 event Inflow = 3.06 cfs @ 12.01 hrs, Volume= 19,598 cf Primary = 3.06 cfs @ 12.01 hrs, Volume= 19,598 cf, Atten= 0%, Lag= 0.0 min Routed to Link E-DP 1 : EXIST DP 1 Primary outflow = Inflow, Time Span= 0.00-36.00 hrs, dt= 0.50 hrs Link 8L: EXISTING DISTURBED Hydrograph Inflow 3.06 cfs Primary 3 3.06 cfs Inflow Area=77,894 sf 2 Flow (cfs) 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)