Analysis - Proposed Conditions NJ DEP 2-hr NJDEP WQ Rainfall=1.25" Prepared by Civil Core Consulting Printed 12/19/2025 HydroCAD® 10.20-8a s/n 13637 © 2025 HydroCAD Software Solutions LLC Page 45

Summary for Pond 45P: BIORENTION BASIN 2A

Inflow Area =18,731 sf,0.00% Impervious, Inflow Depth = 0.00" for NJDEP WQ event
Inflow =0.00 cfs @0.00 hrs, Volume= 0 cf
Outflow =0.00 cfs @0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min
Primary =0.00 cfs @0.00 hrs, Volume= 0 cf

Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 94.30' @ 0.00 hrs Surf.Area= 63 sf Storage= 0 cf

Plug-Flow detention time = (not calculated: initial storage exceeds outflow) Center-of-Mass det. time = (not calculated: no inflow)

VolumeInvertAvail.StorageStorage Description
#194.30'307 cfCustom Stage Data (Prismatic)Listed below (Recalc)
Elevation (feet)Surf.Area (sq-ft)Inc.Store (cubic-feet)Cum.Store (cubic-feet)
94.306300
95.001487474
96.00319234307
DeviceRoutingInvertOutlet Devices
#1Device 394.80'5.0" Vert. Orifice C = 0.600Limited to weir flow at low heads
#2Device 395.50'48.0" x 48.0" Horiz. Grate C = 0.600
#3Primary92.03'12.0" Round Culvert\n L = 30.0' RCP, groove end projecting, Ke = 0.200\nInlet / Outlet Invert= $ 92.03'/91.65' $ S = 0.0127'/' Cc = 0.900\n n = 0.012 Concrete pipe, finished, Flow Area= $ 0.79 $ sf
Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=94.30' (Free Discharge)\n uparrow3=Culvert (Passes 0.00 cfs of 5.72 cfs potential flow)\n uparrow1=Orifice ( Controls 0.00 cfs)\n—2=Grate ( Controls 0.00 cfs)