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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 50 Summary for Pond RCVR 4: RCVR 4 Inflow Area = 0.080 ac, 87.50% Impervious, Inflow Depth > 1.46" for 1-yr event Inflow = 0.17 cfs @ 12.04 hrs, Volume= 0.010 af Outflow = 0.17 cfs @ 12.04 hrs, Volume= 0.010 af, Atten= 0%, Lag= 0.0 min Primary = 0.17 cfs @ 12.04 hrs, Volume= 0.010 af Routed to Pond RCVR 5 : RCVR 5 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 901.49' @ 12.05 hrs Device Routing Invert Outlet Devices #1 Primary 901.13' 8.0" Round RCVR 4 to RCVR 5 L= 22.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 901.13' / 901.04' S= 0.0041 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.19 cfs @ 12.04 hrs HW=901.48' TW=901.38' (Dynamic Tailwater) 1=RCVR 4 to RCVR 5 (Outlet Controls 0.19 cfs @ 1.48 fps) Pond RCVR 4: RCVR 4 RCVR 4 to RCVR 5