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WNY-2500056.00_HydroCAD extreme_precip_tables_output (29) 24-hr S1 25-yr Rainfall=3.85" Prepared by Greenman-Pedersen, Inc Printed 12/18/2025 HydroCAD® 10.20-7a s/n 04560 © 2025 HydroCAD Software Solutions LLC Page 129 Summary for Subcatchment ATO: Area to Offsite Runoff = 0.28 cfs @ 12.39 hrs, Volume= 0.030 af, Depth> 1.91" Routed to Link POST : Post Development Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs extreme_precip_tables_output (29) 24-hr S1 25-yr Rainfall=3.85" Area (ac) CN Description 0.190 80 >75% Grass cover, Good, HSG D 0.190 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 30.0 60 0.0050 0.03 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 2.20" Subcatchment ATO: Area to Offsite