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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 55 Summary for Pond RCVR 5: RCVR 5 Inflow Area = 0.130 ac, 92.31% Impervious, Inflow Depth > 1.53" for 1-yr event Inflow = 0.28 cfs @ 12.01 hrs, Volume= 0.017 af Outflow = 0.28 cfs @ 12.01 hrs, Volume= 0.017 af, Atten= 0%, Lag= 0.0 min Primary = 0.28 cfs @ 12.01 hrs, Volume= 0.017 af Routed to Pond SWALE : SWALE Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 901.41' @ 12.01 hrs Device Routing Invert Outlet Devices #1 Primary 901.04' 8.0" Round RCVR 5 to SWALE L= 89.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 901.04' / 900.68' S= 0.0040 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.28 cfs @ 12.01 hrs HW=901.41' TW=900.56' (Dynamic Tailwater) 1=RCVR 5 to SWALE (Barrel Controls 0.28 cfs @ 2.01 fps) Pond RCVR 5: RCVR 5 RCVR 5 to SWALE