Summary for Pond 8P: INFILTRATION BASIN 3

Inflow Area =38,333 sf,22.73% Impervious,Inflow Depth > 0.72"for 2 YR-C event
Inflow =0.15 cfs @12.46 hrs,Volume= 2,310 cf
Outflow =0.15 cfs @12.47 hrs,Volume= 2,310 cfAtten= 0%, Lag= 0.8 min
Discarded =0.15 cfs @12.47 hrs,Volume= 2,310 cf
Primary =0.00 cfs @0.00 hrs,Volume= 0 cf
Routed to Link 34L : POA 3

Routing by Dyn-Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 90.76' @ 12.47 hrs Surf.Area= 1,150 sf Storage= 6 cf

Plug-Flow detention time=0.7 min calculated for 2,310 cf (100% of inflow) Center-of-Mass det. time=0.7 min (864.0 - 863.3)

VolumeInvertAvail.StorageStorage Description
#190.75'4,888 cfCustom Stage Data (Prismatic)Listed below (Recalc)
Elevation (feet)Surf.Area (sq-ft)Inc.Store (cubic-feet)Cum.Store (cubic-feet)
90.75 95.001,150 1,1500 4,8880 4,888
DeviceRoutingInvertOutlet Devices
#1Device 392.75'2.5" Vert. Orifice C= 0.600 Limited to weir flow at low heads
#2Device 394.50'48.0" x 48.0" Horiz. Grate C= 0.600 Limited to weir flow at low heads
#3Primary92.75'12.0" Round Culvert L= 7.0' RCP, groove end projecting, Ke= 0.200 Inlet / Outlet Invert= 92.75' / 92.65' S= 0.0143 '/ Cc= 0.900 n= 0.012 Concrete pipe, finished, Flow Area= 0.79 sf
#4Discarded90.75'10.000 in/hr Exfiltration over Surface area Phase-In= 0.01'
Discarded OutFlow Max=0.15 cfs @ 12.47 hrs HW=90.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs)
Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=90.75' TW=0.00' (Dynamic Tailwater) 3=Culvert ( Controls 0.00 cfs) 1=Orifice ( Controls 0.00 cfs) 2=Grate ( Controls 0.00 cfs)

Discarded OutFlow Max=0.15 cfs @ 12.47 hrs HW=90.76' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.15 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=90.75' TW=0.00' (Dynamic Tailwater) 3=Culvert (Controls 0.00 cfs) 1=Orifice (Controls 0.00 cfs) 2=Grate (Controls 0.00 cfs) Pond 8P: INFILTRATION BASIN 3 Grate Civilist Exfiltration