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WNY-2500056.00_HydroCAD extreme_precip_tables_output (29) 24-hr S1 1-yr Rainfall=1.88" Prepared by Greenman-Pedersen, Inc Printed 12/18/2025 HydroCAD® 10.20-7a s/n 04560 © 2025 HydroCAD Software Solutions LLC Page 6 Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Subcatchment AEP: Area to Eastern Property Runoff Area=0.090 ac 44.44% Impervious Runoff Depth>0.87" Flow Length=27' Slope=0.0521 '/' Tc=4.1 min CN=88 Runoff=0.13 cfs 0.007 af Subcatchment AQR: Area to Quaker Road Runoff Area=0.130 ac 76.92% Impervious Runoff Depth>1.28" Flow Length=79' Tc=8.0 min CN=94 Runoff=0.24 cfs 0.014 af Subcatchment ASP: Area to Southern Property Runoff Area=0.170 ac 0.00% Impervious Runoff Depth>0.49" Flow Length=135' Slope=0.0138 '/' Tc=25.4 min CN=80 Runoff=0.06 cfs 0.007 af Subcatchment AWP: Area to Western Property Runoff Area=0.300 ac 0.00% Impervious Runoff Depth>0.49" Flow Length=89' Slope=0.0284 '/' Tc=13.6 min CN=80 Runoff=0.14 cfs 0.012 af Link PRE: Pre-Development Inflow=0.45 cfs 0.040 af Primary=0.45 cfs 0.040 af Total Runoff Area = 0.690 ac Runoff Volume = 0.040 af Average Runoff Depth = 0.69" 79.71% Pervious = 0.550 ac 20.29% Impervious = 0.140 ac