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Summary for Pond 8P: INFILTRATION BASIN 3

Inflow Area = 38,333 sf, 22.73% Impervious, Inflow Depth = 0.87" for 2 YR-F event

Inflow = 0.27 cfs @ 12.33 hrs, Volume= 2,783 cf

Outflow = 0.27 cfs @ 12.40 hrs, Volume= 2,783 cf, Atten= 3%, Lag= 4.3 min

Discarded = 0.27 cfs @ 12.40 hrs, Volume= 2,783 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' @ 12.36 hrs Surf.Area= 1,150 sf Storage= 13 cf

Plug-Flow detention time= 0.7 min calculated for 2,783 cf (100% of inflow)

Center-of-Mass det. time= 0.7 min ( 860.0 - 859.3 )

Volume Invert Avail.Storage Storage Description

#1 90.75' 4,888 cf Custom Stage Data (Prismatic)Listed below (Recalc)

Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet)

90.75 1,150 0 0 95.00 1,150 4,888 4,888

Device Routing Invert Outlet Devices

#1 Device 3 92.75' 2.5" Vert. Orifice C= 0.600 Limited to weir flow at low heads

Inlet / Outlet Invert= 92.75' / 92.65' S= 0.0143'/' Cc= 0.900

#2 Device 3 94.50' 48.0" x 48.0" Horiz. Grate C= 0.600

#3 Primary 92.75' 12.0" Round Culvert L= 7.0' RCP, groove end projecting, Ke= 0.200

n= 0.012 Concrete pipe, finished, Flow Area= 0.79 sf

#4 Discarded 90.75' 10.000 in/hr Exfiltration over Surface area Phase-In= 0.01'

Discarded OutFlow Max=0.27 cfs @ 12.40 hrs HW=90.76' (Free Discharge)

4=Exfiltration (Exfiltration Controls 0.27 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