complete drainage report rev 9

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 389 Summary for Pond 33P: Basin 11 Inflow Area = 84,103 sf, 71.22% Impervious, Inflow Depth = 0.77" for WQ event Inflow = 3.64 cfs @ 1.15 hrs, Volume= 5,369 cf Outflow = 3.13 cfs @ 1.12 hrs, Volume= 5,369 cf, Atten= 14%, Lag= 0.0 min Discarded = 3.13 cfs @ 1.12 hrs, Volume= 5,369 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routed to Link 28L : POA 2 Routing by Stor-Ind method, Time Span= 0.00-80.00 hrs, dt= 0.04 hrs Peak Elev= 590.05' @ 1.20 hrs Surf.Area= 13,504 sf Storage= 265 cf Plug-Flow detention time= 0.9 min calculated for 5,366 cf (100% of inflow) Center-of-Mass det. time= 0.9 min ( 75.3 - 74.4 ) Volume #1 Invert 590.00' Elevation (feet) 590.00 591.00 592.00 592.42 Device #1 #2 Avail.Storage 13,072 cf Surf.Area (sq-ft) 13,504 13,504 13,504 13,504 Routing Primary Discarded Invert 590.10' 590.00' Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) 32,680 cf Overall x 40.0% Voids Inc.Store (cubic-feet) 0 13,504 13,504 5,672 Cum.Store (cubic-feet) 0 13,504 27,008 32,680 Outlet Devices 5.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 10.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=3.13 cfs @ 1.12 hrs HW=590.03' (Free Discharge) 2=Exfiltration (Exfiltration Controls 3.13 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=590.00' (Free Discharge) 1=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Pond 33P: Basin 11 Sharp-Crested Rectangular Exfiltration Weir