2026 05 Storm Water Management Report rcd 5 6 2026

2026-04 Proposed & Existing CondiNOAA 24-hr D 100-Year-Current Rainfall=9.18", P2=3.47" 2026-04 Proposed & Existing CondiNOAA 24-hr D 100-Year-Current Rainfall=9.18", P2=3.47" Prepared by Dynamic Engineering Printed 5/5/2026 Prepared by Dynamic Engineering Printed 5/5/2026 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 45 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 46 Summary for Link 1L: POI #1 Summary for Link 2L: POI #2 Inflow Area = 0.534 ac, 70.60% Impervious, Inflow Depth = 7.60" for 100-Year-Current event Inflow Area = 0.044 ac, 34.09% Impervious, Inflow Depth = 5.93" for 100-Year-Current event Inflow = 4.45 cfs @ 12.10 hrs, Volume= 0.338 af Inflow = 0.30 cfs @ 12.10 hrs, Volume= 0.022 af Primary = 4.45 cfs @ 12.10 hrs, Volume= 0.338 af, Atten= 0%, Lag= 0.0 min Primary = 0.30 cfs @ 12.10 hrs, Volume= 0.022 af, Atten= 0%, Lag= 0.0 min Routed to nonexistent node 15L Routed to nonexistent node 15L Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.001 hrs Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.001 hrs Link 1L: POI #1 Link 2L: POI #2

Link 1L: POI #1 Link 2L: POI #2 Hydrograph Hydrograph Inflow Inflow 4.45 cfs Primary 0.30 cfs Primary 4.45 cfs 0.32 0.30 cfs Inflow Area=0.534 ac 0.3 Inflow Area=0.044 ac 0.28 4 0.26 0.24 0.22 3 0.2 Flow (cfs)

0.2 Flow (cfs) Flow (cfs) 0.18 0.16 0.14 2 0.12 0.1 0.08 1 0.06 0.04 0.02 0 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours)

68 70 72 Time (hours) Time (hours)